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699 results about "Constructed wetland" patented technology

A constructed wetland (CW) is an artificial wetland to treat municipal or industrial wastewater, greywater or stormwater runoff. It may also be designed for land reclamation after mining, or as a mitigation step for natural areas lost to land development.

Intelligent regulation and control method for three-stage constructed wetland recirculating aquaculture system

The invention provides an intelligent regulation and control method for a three-stage constructed wetland recirculating aquaculture system, and belongs to the technical field of machine learning. The method comprises the following steps: firstly, continuously collecting water quality data and operation control data of each control unit, and constructing a multi-source heterogeneous data set under a unified time scale; then, constructing a pollution evolution trend prediction model, and capturing a dynamic evolution trend of water quality along with time and control behavior changes; then, under the guidance of a prediction result, analyzing the similarity of historical states and the sensitivity of regulation and control response, automatically identifying key control parameters which influence the water quality change of the system at present, and reasoning the dynamic adjustable boundary of the key control parameters; and finally, constructing a reinforcement learning strategy network fusing state prediction, a parameter boundary and a control target, realizing multi-target tradeoff among pollutant removal efficiency, a water quality standard-reaching rate and operation energy consumption, and outputting an efficient and steady control strategy through continuous interactive training. According to the invention, efficient, accurate and robust operation of the wetland system can be realized.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI

Sea-entering river pollution source targeted blocking and ecological restoration integrated prevention and control system

The invention relates to the technical field of ecological restoration prevention and control, in particular to a sea-entering river pollution source targeted blocking and ecological restoration integrated prevention and control system which comprises a pollution source recognition unit, a targeted blocking unit, an ecological restoration unit and a cooperative control platform. The recognition unit combines a multispectral unmanned aerial vehicle with a water quality sensor and positions a pollution source through artificial intelligence traceability; the targeted blocking unit implements physical-chemical combined blocking according to pollution types; the ecological restoration unit purifies water and reconstructs ecology through a modular constructed wetland and the like; the cooperative control platform optimizes each unit strategy based on hydrological data; each unit correlation formula accurately calculates parameters, such as a recognition algorithm, a gate dam opening control formula and the like. According to the invention, multi-technology fusion and system collaboration are realized, pollution events can be quickly responded, measures are accurately applied, the sea-entering river pollution prevention and control efficiency is effectively improved, the treatment cost is reduced, and drainage basin water environment ecological restoration and sustainable development are promoted.
Owner:FUJIAN ENVIRONMENTAL PROTECTION DESIGN INST CO LTD +1

Water environment ecological management method and system based on constructed wetland

The invention relates to the technical field of water environment treatment, in particular to a water environment ecological treatment method and system based on a constructed wetland, and the method comprises the following steps: measuring the dissolved oxygen concentration, ammonia nitrogen concentration, total phosphorus concentration, water temperature and pH value of a root zone in the constructed wetland, and calculating the pollutant concentration distribution value and plant root system distribution density of each monitoring point; and obtaining a water quality root distribution characterization value. In an artificial wetland environment, the concentration of dissolved oxygen, the concentration of ammonia nitrogen, the concentration of total phosphorus, the water temperature and the pH value of a root zone are measured, the concentration distribution of pollutants is calculated, numerical calculation is carried out in combination with the distribution density of plant root systems, water quality root system distribution characterization is constructed, spatial heterogeneity analysis of wetland water quality is enhanced, and the targeting of pollutant degradation is optimized. Based on water quality root system distribution characterization, plant growth cycle parameters are calculated in combination with water quality parameters, association between water quality dynamic changes and plant growth states is constructed, and the adaptability of wetland ecological regulation and control is improved.
Owner:ELECTRIC COMPREHENSIVE INVESTIGATION OF SURVEYING INST OF MINISTRY OF INFORMATION IND

Fenton-like functional filler, processing method and application of Fenton-like functional filler in constructed wetland

The invention relates to a Fenton-like functional filler which is prepared from 10-20% of iron particles coated with a carbonized film, 10-20% of aluminum sulfate modified straw, 20-30% of PBAT-coated calcium peroxide, 20-30% of diatomite and 10-30% of an adhesive. A processing method of a Fenton-like functional filler comprises the following steps: uniformly mixing iron particles coated with a carbonized film, aluminum sulfate modified straws, PBAT-coated calcium peroxide and diatomite, then adding an adhesive, mixing isocyanate serving as the adhesive with polyol according to a volume ratio of 1: 5, and continuously and uniformly mixing; then the mixed raw materials are injected into a mold coated with a release agent in advance, the mold temperature ranges from 40 DEG C to 60 DEG C, the foaming curing time ranges from 15 min to 20 min, and the Fenton-like functional filler can be obtained. The invention relates to an application of a Fenton-like functional filler in constructed wetlands. The method has the beneficial effects that the method is not influenced by temperature, and the removal effect of the constructed wetland on nitrate nitrogen and refractory COD (Chemical Oxygen Demand) can be obviously enhanced.
Owner:YUANLANGCHAO ECOLOGICAL CONSTR (HUBEI) CO LTD +1

Modularized artificial wetland system for synchronous heating and carbon supplementation by using biological fermentation

The invention relates to the technical field of constructed wetlands. The invention provides a modular artificial wetland system for synchronous heating and carbon supplementation by using biological fermentation. The modular artificial wetland system comprises an artificial wetland purification module, a fermentation heating module, a carbon source release module and a control module. According to the invention, the constructed wetland system is designed into a plurality of functional modules, and each module independently exerts a specific function and can be flexibly combined and adjusted according to actual requirements, so that effective coordination of the whole process of heating, carbon supplement and purification is realized.
Owner:INSTITUTE OF ECOLOGICAL PROTECTION & RESTORATION CHINESE ACADEMY OF FORESTRY SCIENCE

Method and system for monitoring operation state of constructed wetland

The invention relates to the technical field of water, waste water, sewage or sludge treatment, and particularly provides a constructed wetland operation state monitoring method and system.The method comprises the steps that based on a distributed sensing node array, water flow permeation rates, medium temperature gradients and dissolved matter concentration distribution of different depths and areas of a constructed wetland are collected in real time; generating a three-dimensional dynamic thermodynamic-substance diffusion map; extracting an actual flux difference value of an input-output cross section, and calculating the deviation degree between the current actual load and the theoretical purification capacity by combining the actual flux difference value with the historical adsorption capacity of the wetland medium; and integrating the historical load data with a current early warning report corresponding to the deviation degree, constructing a medium metabolism efficiency attenuation curve, predicting the saturation adsorption periods of matrixes in different regions, and reversely deducing an optimal maintenance node. The system comprises a map generation module, a deviation degree calculation module and a period prediction module. According to the method, discrete physical-chemical-biological process parameters are converted into a continuous decision flow through a space-time coupling model.
Owner:PINGLIANG ECOLOGICAL ENVIRONMENT MONITORING CENT OF GANSU PROVINCE

Salt-tolerant plant constructed wetland system for treating eutrophic mariculture wastewater

The invention provides a salt-tolerant plant constructed wetland system for treating eutrophicated mariculture wastewater, which specifically comprises a lower filler formed by mineral materials, and a middle filler formed by modified zeolite, sodium alginate coated vermiculite, rice husk charcoal, oyster shell, coral sand and diatomite, the surface filler is composed of intertidal zone bottom mud, intertidal zone raw water, coastal saline-alkali soil and composite algae powder, and the three fillers are combined with salt-tolerant plant breeding, bow-shaped water flow optimization and layered collaborative design; the core problems of poor salt tolerance, low adsorption efficiency, easiness in blockage, high maintenance cost and the like of the traditional constructed wetland during treatment of the mariculture wastewater are systematically solved.
Owner:SHANDONG INST OF SERICULTURE

Modular constructed wetland optimization method and device, electronic equipment and storage medium

The invention relates to the technical field of purification, in particular to a modular constructed wetland optimization method and device, electronic equipment and a storage medium, and is applied to a water purification system.The method comprises the steps that the inflow water amount, the inflow water quality and the outflow water quality are obtained; and calculating the water quality removal rate according to the inlet water quality and the outlet water quality. According to the method, the water quality removal rate of the water purification system is monitored, multi-level data processing is carried out through the pre-trained adjustment model, the preset comprehensive index prediction result of each index is calculated firstly, and under the condition that the comprehensive index prediction result does not meet the process requirement, the water quality removal rate of the water purification system is monitored. According to the method, the target adjustment index is determined based on the multi-target optimization model, the preliminary adjustment strategy is determined, then the preliminary adjustment strategy is further refined based on the strategy evaluation model, and therefore the target adjustment strategy is determined, intelligent and accurate adjustment of the water purification system is achieved, and the target adjustment strategy meeting the preset purification requirement is obtained.
Owner:POWERCHINA HUADONG ENG CORP LTD +1

Sewage treatment system

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment system which comprises a first wetland treatment unit, a second wetland treatment unit and a third wetland treatment unit, the first wetland treatment unit comprises a plurality of treatment assemblies arranged at intervals, the treatment assemblies are periodically filled with sewage, and the third wetland treatment unit comprises a third wetland treatment unit. The first wetland treatment unit is used for treating sewage through aerobic reaction to form first sewage, the second wetland treatment unit comprises a bent section, the bent section comprises a bent wall and an adsorption layer, the adsorption layer covers the bent wall, and the first sewage flows in the extending direction of the bent section; the dissolved oxygen concentration of the second wetland treatment unit is smaller than that of the first wetland treatment unit and larger than that of the third wetland treatment unit, and the third wetland treatment unit receives sewage treated by the second wetland treatment unit and conducts anaerobic reaction. The sewage treatment capacity is improved; meanwhile, the emission of greenhouse gases is reduced.
Owner:CHINA ENFI ENG CORP +1

Anti-clogging artificial wetland system based on intelligent algorithm

The invention relates to an anti-clogging artificial wetland system based on an intelligent algorithm, and belongs to the technical field of ecological equipment, the system comprises a biological reaction tank, a sensing module, an automatic control module and a cleaning module; the sensing module is mounted in the biological reaction tank and is used for collecting state information of the biological reaction tank and sending the state information to the automatic control module; the state information comprises dissolved oxygen data, pH value, water flow, water level and water pressure; the automatic control module is used for predicting the water quality and the constructed wetland blockage degree according to the state information to obtain a blockage degree value, judging whether the blockage degree value is greater than a blockage threshold value or not, and sending a judgment result to the cleaning module if the blockage degree value is greater than the blockage threshold value; and the cleaning module is used for adjusting the water flow and the dissolved oxygen concentration of the biological reaction tank according to the judgment result to remove blockages. The problems that in the prior art, a constructed wetland substrate is prone to being blocked, so that the inflow water flow is unstable, and the effluent water quality is poor are solved.
Owner:CCCC SECOND HARBOR CONSULTANTS CO LTD

Bacteria-algae composite adsorption module wetland substrate filler as well as preparation method and application thereof

The invention relates to a bacteria-algae composite adsorption module wetland substrate filler as well as a preparation method and application thereof, and belongs to the technical field of biology. The bacteria-algae composite adsorption module wetland substrate filler is prepared by the following steps: preparing an adsorption module, fungicide microspheres and a diatom biological membrane layer, placing the diatom biological membrane layer on the upper layer of the fungicide microspheres to form a diatom fungicide composite layer, and placing the diatom fungicide composite layer on the upper layer of the adsorption module. The bacteria-algae composite adsorption module wetland substrate filler disclosed by the invention can effectively remove pollutants such as nitrogen, phosphorus, lead, cadmium and the like in sewage by independently using the bacteria-algae composite adsorption module wetland substrate filler, effectively reduces the chemical oxygen demand (COD) of the sewage, and simplifies the hierarchical design of an artificial wetland; and the regeneration capacity is high, the replacement period is prolonged, and the operation and maintenance cost is reduced.
Owner:YUEYANG XINFUYUAN DECORATION CO LTD +1

Low-carbon modular artificial wetland system and carbon sink synergistic purification method thereof

The invention provides a low-carbon modular artificial wetland system and a carbon sink collaborative purification method thereof, and relates to the technical field of artificial wetlands, the low-carbon modular artificial wetland system comprises a modular box body, and a water inlet layer, a carbon sink layer and a purification layer which are sequentially arranged in the modular box body from top to bottom; the water inlet layer is used for filtering suspended matters through coarse sand; the carbon sequestration layer is used for adsorbing carbon dioxide through biochar and carbon sequestration microorganisms, and meanwhile, the carbon sequestration capacity is enhanced through the plant-microorganism synergistic effect; the purification layer is used for purifying a water body through an iron-based phosphorus removal material and a zeolite denitrification filler. The technical problems of low-carbon material selection, carbon sink potential excavation, renewable energy source coupling and greenhouse gas emission inhibition of an existing constructed wetland system are solved, the technical effects of efficient sewage purification and carbon emission reduction are achieved, and a carbon emission reduction closed loop of the whole life cycle is achieved.
Owner:POWERCHINA HUADONG ENG CORP LTD

Device and method for treating black and odorous water body in constructed wetland

The invention discloses a device for treating black and odorous water in a constructed wetland in the field of sewage treatment, comprising: a fuel cell assembly comprising a reaction container, a cathode zone, an anode zone and a buffer zone from top to bottom in the reaction container, the cathode zone comprising a catalytic filler, the anode zone comprising an oxidation filler, and the buffer zone comprising a buffer filler; the oxidation filler is a composite material; the water passing assembly is communicated with the anode area and is used for slowly introducing black and odorous water into the anode area, and a plurality of horizontal water outlet pipes are vertically arranged on the reaction container at intervals; the current collection assembly is electrically connected with the anode region and the cathode region; the invention further discloses a manufacturing method. The fuel cell has the beneficial effects that the composite material prepared from the poly (butylene succinate), the manganese oxide and the manganese dioxide is used as the anode filler of the fuel cell, so that the formation of black and odorous substances can be reduced, and the treatment effect of the fuel cell on a black and odorous water body is improved.
Owner:CHONGQING UNIV

Offshore water quality comprehensive treatment device utilizing artificial wetland technology

The invention discloses an offshore water quality comprehensive treatment device utilizing an artificial wetland technology, and belongs to the technical field of sewage treatment. The offshore water quality comprehensive treatment device comprises a base, a water inlet and a water outlet are formed in the two sides of the base respectively, a lifting cavity corresponding to the water outlet is formed in the base, and a balancing weight is arranged in the lifting cavity in a sliding fit mode; lifting columns are symmetrically and integrally formed at the top end of the balancing weight, air cavities are symmetrically formed in the base, the top ends of the two lifting columns extend into the corresponding air cavities respectively and are in sliding fit with the air cavities, and ventilation assemblies used for conveying air in the air cavities to the water collection and drainage layer are arranged on the inner side walls of the air cavities; a plurality of teeth are arranged on one side of each lifting column in the length direction of the lifting column, and the teeth are meshed with swing assemblies used for generating periodic arc-shaped swing. And a vibration bracket is embedded in the filler layer. According to the invention, offshore tidal energy is utilized to realize self-adaptive opening and closing of the water outlet, and meanwhile, alternate shearing force is generated on the filtering filler in the base, so that the possibility of hardening of the filler after long-time working is reduced.
Owner:MARINE FISHERIES RES INST OF ZHEJIANG

Intelligent operation management platform and method for tail water constructed wetland of large sewage plant

The invention relates to the technical field of environmental engineering, in particular to an intelligent operation management platform and method for a tail water constructed wetland of a large sewage plant, and the operation management platform comprises a monitoring system device which is used for collecting wetland monitoring data in real time, and transmitting the collected wetland monitoring data to an analysis and storage module; the analysis storage module is used for analyzing the wetland monitoring data to obtain structured monitoring parameter data; the operation scheduling management module comprises a scheme management unit used for storing a plurality of regulation and control schemes; the operation control unit is used for regulating and controlling the regulation and control object equipment by adopting preset scheduling logic according to the current monitoring parameter data and the regulation and control scheme; the operation and maintenance management unit is used for sending an inspection work order to a mobile terminal of a corresponding operation and maintenance worker according to a preset inspection plan; and the evaluation module is also used for receiving the inspection result data reported and sent by the mobile terminal of the operation and maintenance personnel and evaluating the inspection result data by adopting a preset rule to obtain an evaluation result.
Owner:BEIJING CAPITAL CO LTD

Artificial wetland system of iron-containing sludge biochar and method for reinforcing Feammox reaction denitrification

The invention belongs to the technical field of wastewater treatment, and particularly relates to an artificial wetland system of iron-containing sludge biochar and a method for reinforcing Feammox reaction denitrification. Comprising a system body, the top end of the system body is open, the bottom end of the system body is closed, a supporting layer and a matrix mixing layer are vertically stacked in the system body in the height direction of the system body, and the height ratio of the supporting layer to the matrix mixing layer is 1: (5-7); the supporting layer is a first gravel layer, and the matrix mixing layer is prepared by mixing iron-containing sludge biochar and second gravel according to the volume ratio of 1: (2.5-5). According to the constructed artificial wetland system, the rich porous structure and the high specific surface area of the iron-containing sludge biochar provide an ideal adhesion matrix for microorganisms, slowly-released iron ions not only provide necessary nutritional ingredients for the microorganisms, but also further excite the activity of the microorganisms by adjusting the oxidation-reduction potential and enhancing electron transfer, so that the biological activity of the microorganisms is improved. The denitrification reaction is promoted.
Owner:ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY

Sulfur autotrophic denitrification filter material enhanced constructed wetland microbial fuel cell sewage treatment system and treatment method

The invention discloses a sulfur autotrophic denitrification filter material enhanced constructed wetland microbial fuel cell sewage treatment system and method, and the treatment system comprises a container main body, the container main body sequentially comprises a gravel water distribution layer, a granular activated carbon anode layer, a sulfur autotrophic denitrification filter material layer, a middle gravel layer, a granular activated carbon cathode layer and a wetland plant layer from bottom to top, anodes are embedded in the granular activated carbon anode layer, cathodes are embedded in the granular activated carbon cathode layer, and the wetland plant layer is arranged in the middle gravel layer. A lead penetrates through the granular activated carbon anode layer and the granular activated carbon cathode layer to connect the anode with the cathode, a water inlet is formed in the gravel water distribution layer, and a water outlet is formed in the wetland plant layer. The constructed wetland microbial fuel cell and the sulfur autotrophic denitrification technology are combined, the dual effects of pollutant removal and electric energy generation are achieved, a new thought is provided for combination of the constructed wetland microbial fuel cell and the sulfur autotrophic denitrification technology, and meanwhile, a new direction is provided for removal of river sewage.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY +1

Intelligent regulation and control type constructed wetland nitrogen and phosphorus removal control method

The invention relates to the technical field of sewage treatment, and discloses an intelligent regulation type constructed wetland nitrogen and phosphorus removal control method, which comprises the following steps: S1, collecting constructed wetland multi-dimensional operation parameter data, and generating water quality dynamic monitoring data, plant physiological status data and microbial activity characteristic data; s2, calculating a pollutant removal efficiency index based on the water quality dynamic monitoring data, and generating nitrogen and phosphorus removal efficiency evaluation data; by integrating multi-dimensional operation parameter acquisition and acquiring water quality, plant physiological status and microbial activity data in real time, comprehensive perception of the operation state of the wetland system is realized, the integrity and real-time performance of system monitoring are ensured, collaborative analysis and intelligent decision are performed based on multi-source data, the pollutant removal efficiency is identified, and the system has a wide application prospect. The evaluation precision of the operation state of the wetland system is improved, and a basis is provided for subsequent regulation and control.
Owner:浙江省机电设计研究院有限公司

Composite vertical flow constructed wetland

The invention discloses a composite vertical flow constructed wetland. The composite vertical flow constructed wetland comprises a glass porous cross-linking modified slow-release carbon source matrix filler layer, wherein a glass porous cross-linking modified slow-release carbon source matrix is prepared from a glass porous matrix loaded with nano zero-valent iron and an alkali-treated modified biological carbon material through a cross-linking reaction. The constructed wetland disclosed by the invention can efficiently remove nitrogen and phosphorus, can still stably operate in a low-temperature environment, is small in occupied area and low in cost, and can effectively solve the problem of urban sewage.
Owner:HUNAN HENGKAI ENVIRONMENT TECH INVESTMENT CO LTD

Enhanced denitrification method and device for constructed wetland with high-void-ratio filler

The invention discloses an enhanced denitrification method and device for a constructed wetland with a high-void-ratio filler, and aims to create favorable conditions for deep nitrification by screening light materials and constructing a high-low-high gradient resistance layer and inducing flow velocity differentiation to form an oxygen concentration fluctuation zone. Function switching type microorganisms with nitrification-denitrification bidirectional conversion capacity are cultured, and a seasonal flora switching mechanism and a complementary symbiotic network are established to adapt to annual temperature change; multi-point distributed water supply is designed to form a river branch type water flow path, and bionic water flow distribution is achieved; the periodic change of the water level of pulsating water inlet is used for driving gas exchange in the filler to form a tidal breathing effect, and deep oxygen supply can be realized without mechanical aeration; and real-time monitoring is carried out based on an intermittent operation time table, and operation parameters are dynamically optimized. According to the invention, the problems of limited oxygen transfer and seasonal performance fluctuation of the traditional constructed wetland are solved, and a technical scheme with low energy consumption and high stability is provided for nitrogen-containing wastewater treatment.
Owner:CHINA RAILWAY SEVENTH BUREAU GRP XIAN RAILWAY ENG CO LTD

Multi-stage composite constructed wetland construction method based on micro-ecological optimization

The invention discloses a multi-stage composite constructed wetland construction method based on micro-ecological optimization, and relates to the technical field of constructed wetland ecological restoration. According to the method, fluctuation characteristics of pollutant concentration and hydraulic load and coupling risks of the fluctuation characteristics are systematically and quantitatively recognized, a high-disturbance risk area and an induction succession area are accurately divided, and a multi-stage composite constructed wetland is constructed. The micro-ecological state and succession potential of the wetland are dynamically monitored and evaluated, the wetland type layout is scientifically regulated and controlled on the basis of the hydraulic path resistance index, the non-linear impact of pollution impact on micro-ecology is effectively relieved, the ecological self-repairing capacity and toughness of the wetland system are improved, the function passivation phenomenon is avoided, and the method is suitable for large-scale popularization and application. Meanwhile, the resource allocation efficiency and the pollution treatment effect are improved, the operation and maintenance cost is reduced, and the adaptability and continuous purification capacity of the constructed wetland to the complex polluted water body are remarkably enhanced.
Owner:SOUTHWEST FORESTRY UNIVERSITY

Artificial wetland process design system and method based on neural network multi-boundary condition

The invention discloses an artificial wetland process design system and method based on a neural network multi-boundary condition. The system comprises a data preprocessing module, a neural network model construction module, a multi-boundary constraint processing module and an optimal solution output module. Wherein the multi-boundary constraint processing module uses a Lagrange multiplier method and a penalty function method to manage constraint conditions of the constructed wetland involved in the optimization process; the optimal solution output module is used for randomly generating an initial constructed wetland process combination, inputting the initial constructed wetland process combination into the trained deep feed-forward neural network, and calculating a fitness value of the initial constructed wetland process combination after key performance indexes of operation of the constructed wetland are obtained; and on the basis of the fitness values and constraint conditions of the constructed wetland, correcting the process combination which does not meet the constraint conditions by adopting an evolutionary algorithm, and outputting the process combination with the highest fitness as an optimal solution after the optimization process is ended. The result obtained by the method is high in accuracy.
Owner:POWERCHINA HUADONG ENG CORP LTD

Wetland substrate combination and evaluation method based on hydraulic performance

The invention belongs to the field of constructed wetland water treatment, and particularly relates to a wetland substrate combination and evaluation method based on hydraulic performance, a combined substrate is used for establishing a wetland model, a tracer experiment method is used for testing the hydraulic performance of the substrate, and a retention time distribution curve is drawn; calculating the average hydraulic retention time, the effective volume ratio, the water flow dispersion degree, the standard flow dispersion and the hydraulic efficiency on the basis of the retention time distribution curve; and performing weighted calculation on the effective volume ratio, the water flow dispersion degree, the standard flow dispersion degree and the hydraulic efficiency according to weights to obtain a comprehensive performance index, and evaluating the advantages and disadvantages of the matrix according to the comprehensive performance index. The data of the method are easy to obtain, the result can be quickly output, and the feasibility is high.
Owner:HOHAI UNIV

Anti-freezing artificial wetland system in cold region and temperature control method of anti-freezing artificial wetland system

The invention provides an anti-freezing artificial wetland system in a cold region and a temperature control method thereof. The system comprises a vertical flow artificial wetland; a water collecting pipe is arranged at the bottom of the vertical flow constructed wetland and is filled with filler; the water collecting pipe is communicated with a water level adjusting pipe which is vertically arranged, and the water level adjusting pipe comprises at least two water level pipes with different heights. The filler sequentially comprises a zeolite layer, a steel slag-peat mixed layer and a volcanic rock-quartz sand layer from top to bottom. Plants with deep roots and plants with shallow roots are planted in the vertical flow constructed wetland; a water level sensor for measuring the height of the water level, an ice layer sensor for measuring the thickness of an ice layer and an air sensor for measuring the thickness of an air layer between the ice layer and the water surface are arranged in the vertical flow constructed wetland. According to the system provided by the invention, the anti-freezing performance of the constructed wetland system can be remarkably improved, the activity of microorganisms is guaranteed, and the sewage treatment effect and the operation efficiency are improved.
Owner:中核第七研究设计院有限公司

A modular artificial wetland water purification system

The utility model provides a modular artificial wetland water purification system, which comprises an adsorption sedimentation tank, a water distribution channel, a plurality of modular wetland units and a water collection channel in sequence along the flow direction of sewage; the modular artificial wetland water purification system of the invention solves the problems that the amount of urban tail water is large and the water quality is difficult to meet the surface water environmental quality standards, the wetland ecosystem is degraded and the water purification capacity is low, the ecological landscape pattern is fragmented, and the water ecosystem is fragile in the northern region under low temperature.
Owner:SHANGHAI BO RUI SI ENVIRONMENTAL TECHNOLOGY CO LTD

Automatic regulation and control method and system for tidal flow constructed wetland based on AI

The invention discloses an AI-based tidal flow constructed wetland automatic regulation control method and system, and the method comprises the steps: collecting multi-source sensing data of a tidal flow constructed wetland system in real time, and carrying out the preprocessing and feature extraction of the data; constructing a denitrification efficiency prediction model based on an LSTM network to determine a TN removal rate prediction value and an optimal DO threshold value; according to the TN removal rate predicted value and the optimal DO threshold value, a joint reward function is established based on a DRL algorithm, a multi-objective optimization strategy is determined, and adjustment parameters of the tidal flow constructed wetland system are dynamically generated; adjusting the water inlet / drainage frequency according to the adjustment parameters, accurately adding the carbon source, and adjusting the aeration intensity according to the gradient; and obtaining microbial activity feedback data, and optimizing the regulation and control strategy according to the microbial activity feedback data, so that the effluent TN reaches a preset standard. According to the method, a plurality of optimization targets can be considered at the same time, so that efficient, energy-saving and environment-friendly control on the constructed wetland is realized.
Owner:HUAZHONG AGRI UNIV

Method for improving sewage treatment efficiency of constructed wetland through advanced oxidation of manganese bacteria coupled peroxydisulfate

The invention discloses a method for improving sewage treatment efficiency of a constructed wetland through advanced oxidation by coupling manganese bacteria with peroxydisulfate, which comprises the following steps: firstly, filling biochar and gravel particles into the front end (main body reaction zone 1) of the constructed wetland, and filling the gravel particles into the rear end (main body reaction zone 2) of the constructed wetland; an iron-plated layer graphite rod and a graphite rod are respectively inserted into the filler layer at the front end of the wetland, the iron-plated layer graphite rod is connected with an anode of an external direct-current power supply, and the graphite rod is connected with a cathode of the external direct-current power supply. After being electrified, the iron-plated layer graphite rod releases O2 and Fe < 2 + >. Then, a mixed solution of urban domestic sewage and an isometric peroxydisulfate and manganese chloride solution is used as wetland device inlet water, and degradation of pollutants in the sewage is enhanced through the effects of microorganisms, catalysis, electrolysis, advanced oxidation, adsorption and the like. The invention aims to form a method for improving the sewage treatment efficiency of the constructed wetland according to an electrochemical and manganese bacteria and peroxydisulfate advanced oxidation coupling principle.
Owner:HOHAI UNIV +1

Wetland semantic virtual geographic environment construction method based on hierarchical knowledge graph

The invention belongs to the crossing field of computer technology, geographic information science and environmental science, and discloses a hierarchical knowledge graph-based wetland semantic virtual geographic environment construction method, which comprises the following steps of: constructing a data graph, and constructing a wetland monitoring entity, the multi-source heterogeneous wetland monitoring data set is converted into a knowledge graph with entities as nodes and semantic relations as edges; constructing a calculation graph, integrating a wetland executable calculation entity into the knowledge graph, and enabling the calculation entity to execute calculation and conversion operation on entities in the data graph based on an algorithm rule; and a scene graph is constructed to represent a knowledge graph formed by different wetland application scene entities, and the application scene entities are associated with data entities from the data graph and calculation entities from the calculation graph. According to the method, the problems that in the existing wetland virtual geographical environment, the wetland monitoring data is too much and too little due to lack of semantic information and the calculation entity is too strong and too weak due to insufficient intelligence can be solved.
Owner:JIANGXI NORMAL UNIV

Multifunctional modular wetland pilot test device for nitrogen and phosphorus removal

The present invention relates to a multifunctional modular wetland pilot test device for denitrification and phosphorus removal. The present invention is applicable to the technical field of artificial wetlands. The technical solution adopted by the present invention is: a multifunctional modular wetland pilot test device for denitrification and phosphorus removal, characterized in that: it has a device body, an inlet pipe system and an outlet pipe system; the device body includes a main frame and a water outlet layer arranged at the bottom of the main frame, and a plurality of module filling grids arranged in the main frame and above the water outlet layer, and the module filling grids are filled with fillers; the inlet pipe system includes an inlet branch pipe connected to one end of each column of module filling grids and is equipped with a gate valve for controlling the on-off of the inlet branch pipe, and the outlet pipe system includes an outlet branch pipe connected to the other end of each column of module filling grids and is equipped with a gate valve for controlling the on-off of the outlet branch pipe.
Owner:POWERCHINA HUADONG ENG CORP LTD

Constructed wetland comprehensive development system and method, computer equipment, medium and product

The invention relates to the technical field of wetland ecological engineering, and discloses a constructed wetland comprehensive development system and method, computer equipment, a medium and a product, and the system comprises a multi-business collaborative coupling physical space configuration layer which is used for carrying out function division and space facility layout design in a target wetland region based on a multi-business collaborative coupling principle, a multi-business infrastructure is constructed based on function partition and spatial layout design; and the dynamic regulation and control center is in communication connection with the multi-business-state collaborative coupling physical space configuration layer, and the dynamic regulation and control center is used for collecting multi-source data of the multi-business-state collaborative coupling physical space configuration layer, monitoring the multi-business-state collaborative coupling physical space configuration layer in real time based on the multi-source data, dynamically coordinating operation of each business state and optimizing resource configuration. According to the invention, multi-business deep fusion is realized, intelligent dynamic regulation and control capability is realized, long-term stable operation of the system is guaranteed, and comprehensive economic, ecological and social benefits are improved.
Owner:CHINA THREE GORGES CORPORATION +1