308 results about "Total phosphorus" patented technology

The invention relates to the field of environment monitoring and ecological restoration, in particular to a farmland and river ecological collaborative monitoring and regulation system and method. The system comprises a first-stage barrage, a second-stage barrage, a gabion revetment, front-end acquisition equipment, execution equipment and a server, wherein the first-stage barrage and the second-stage barrage are arranged at intervals; the execution equipment comprises irrigation equipment, a first gate, a second gate and an ecological flocculant putting device; the server comprises a data acquisition module, a data storage module, an analysis processing module and a control execution module, inputs control parameters including a first gate opening degree, a second gate opening degree, an irrigation equipment electric valve opening degree and an ecological flocculant putting amount through an LSTM model, and predicts state variables including an upstream water level, a downstream flow, an irrigation water supply amount, a total phosphorus concentration and a total nitrogen concentration; and a multi-target optimization model including agricultural water demand, ecological flow, flood control safety and water quality purification targets is solved in combination with an optimization NSGA-II algorithm, target control parameters are acquired, and a control instruction is generated to drive execution equipment.

The invention discloses a micro-nano air flotation coupling critical micro-flocculation phosphorus removal control method, which relates to the technical field of water treatment, and comprises the following steps: when the total phosphorus concentration is lower than a preset concentration threshold value, determining the proportion of non-target particles based on the water turbidity and particle spectrum distribution; adding a flocculating agent according to a preset critical dosage to generate target phosphorus floc, and synchronously forming a primary flocculation phase which can be distinguished from non-target particles; applying an interfacial activity regulation factor to the micro-nano bubbles based on the primary flocculation phase, and performing selective regulation; forming a bubble-phosphorus floc complex based on a selective regulation effect; the bubble-phosphorus floc complex is separated and removed in an air flotation mode, the competition intensity history of non-target particles is recorded, and a competition memory curve is formed. According to the method, interfacial activity regulation factors are applied to the surfaces of the micro-nano bubbles, so that the micro-nano bubbles can preferentially and selectively adsorb target phosphorus floc, and efficient removal of low-concentration total phosphorus is realized.

The invention discloses a system and a method for classified sewage treatment, and belongs to the technical field of environmental engineering and water treatment. The system comprises the following components: an intelligent water quality detection module, which is used for real-time and accurate monitoring of COD, BOD, ammonia nitrogen, total phosphorus, suspended matter concentration and heavy metal content; the sectional bioreactor realizes deep removal of nitrogen and phosphorus and efficient biological treatment by flexibly adjusting reaction conditions of each section; the intelligent flocculation control module is used for automatically and accurately adjusting the adding amount of a flocculating agent, and is combined with integrated operation of efficient inclined tube precipitation and sludge concentration, so that the water quality of discharged water is stable, and the medicament consumption is reduced; the ultrafiltration membrane bioreactor effectively removes residual suspended matters and colloids, and ensures that the effluent stably reaches the standard for a long time through the synergistic effect of catalytic ozonation; and the sludge treatment module is used for realizing collaborative optimization management of sludge reduction, recycling and energy recycling.

The preparation method comprises the following steps: S1, preparing a phosphoric acid solution, a hydrogen peroxide solution, a Ti salt, a phosphor salt solution and a ferrite solution; s2, Ti salt and the ferrite solution are mixed, and a titanium iron salt solution is obtained; mixing the phosphoric acid solution and the phosphorus salt solution to obtain a phosphorus source solution; s3, adding the titanium iron salt solution into a reaction kettle, and adding the hydrogen peroxide solution; s4, adding the phosphorus salt solution into the reaction kettle to obtain yellow slurry; s5, after the color of the slurry is heated to be white, white slurry is obtained; s6, carrying out solid-liquid separation on the white slurry to obtain an iron phosphate dihydrate filter cake; and S7, drying and calcining the iron phosphate dihydrate filter cake to obtain the Ti-doped battery-grade anhydrous iron phosphate. The titanium-doped iron phosphate is firstly prepared by a one-step method, the pH value of the reaction system is controlled by controlling the molar ratio of the iron element to all phosphorus elements in total phosphorus, ammonium phosphate and phosphoric acid in the reaction system, and the retention of the Ti element in the finished product and the regulation and control of the iron-phosphorus ratio in a specified range are ensured.

The invention discloses a Vinck Cellulomicrobe and application thereof in degradation of corn straw and improvement of soil fertility, and belongs to the field of agricultural microbial technology and solid waste resource utilization. The bacterial strain can secrete a plurality of hydrolase and oxidase including AA10 family lytic polysaccharide monooxygenase, AA2 peroxidase, GH3 and GH1 beta-glucosidase, GH16 / GH17 beta-glucosan endonuclease and AA1 multi-copper oxidase. The bacterial strain has the advantages that the bacterial strain can secrete a plurality of hydrolase and oxidase; fermentation liquor is applied to soil according to the straw mass ratio of 1: 5, and the corn straw degradation rate can be increased under the condition that the mass ratio of soil to straw is 100: 1. Meanwhile, the microbial agent can synergistically improve soil nutrients and increase the contents of rapidly available phosphorus, rapidly available potassium, alkali-hydrolyzable nitrogen, soluble organic carbon and total phosphorus in soil. According to the microbial agent, a straw lignocellulose structure is effectively cracked through a multi-enzyme system synergistic effect, and the dual effects of accelerating straw degradation and improving soil fertility are achieved.

The present application belongs to the technical field of sewage treatment, and discloses an energy-saving and consumption-reducing precise dosing control method for urban sewage treatment facilities. The method comprises the following steps: setting a predetermined total phosphorus concentration of the sewage treatment module in the data module as a reference for subsequent dosing control and effluent quality judgment; collecting the inflow flow and the inflow total phosphorus concentration of the sewage treatment module by the data module; determining the detection phosphorus reduction dosing amount of the dosing module according to the predetermined total phosphorus concentration, the inflow flow and the inflow total phosphorus concentration; converting the orthophosphate concentration into the total phosphorus concentration by installing an orthophosphate detection unit at the inflow end of the high-efficiency sedimentation tank and combining the experience coefficient obtained through historical data analysis, so as to calculate the dosing amount; and avoiding the dependence of the traditional system on the expensive and frequently-maintained total phosphorus online detector, thereby significantly reducing the system deployment cost and operation and maintenance difficulty.

The invention discloses a method for determining a toughness and catastrophe threshold value of a functional group of a water ecosystem, and relates to the technical field of water environment ecological engineering.The method comprises the steps that the state of a target water ecosystem is determined according to the total nitrogen content, the total phosphorus content and the chlorophyll content of a water body in the target water ecosystem, the state of the target water ecosystem is eutrophication or non-eutrophication; determining the biomass of phytoplankton based on the target water ecosystem state; utilizing an Ecopath model to construct a static food network relation model of the target water ecosystem; based on the target water ecosystem state, the biomass of the phytoplankton and the static food network relation model, determining a toughness threshold value and a catastrophe threshold value of the biomass of each functional group; each functional group is a plurality of groups for dividing species in the target water ecosystem. According to the method, the water ecosystem functional group toughness threshold value and the catastrophe threshold value which are simple to operate and high in accuracy can be provided.

The invention belongs to the technical field of sewage treatment, and particularly relates to a low-carbon-nitrogen-ratio sewage short-process nitrogen and phosphorus removal system and method. The method comprises the following steps: S1, capturing a carbon source and synthesizing an internal carbon source; s2, synchronous denitrification phosphorus removal; S3, layered nitrification treatment and internal carbon source reutilization; and S4, material circulation. According to the invention, denitrifying phosphorus-accumulating bacteria are used as an active carbon source carrier, and soluble VFAs which is easily fight for by common heterotrophic denitrifying bacteria is converted into solid PHA in the bacteria in a carbon source capture and internal carbon source synthesis tank; according to the method, the total nitrogen and the total phosphorus in the sewage with the low carbon-nitrogen ratio can be efficiently and deeply removed, and meanwhile, the method has the outstanding advantages of being low in energy consumption, small in sludge yield and small in occupied area.

The invention discloses a water plant inlet water quality change identification method and system, and the method comprises the steps: collecting water plant inlet water turbidity, pH value, dissolved oxygen content, COD concentration, ammonia nitrogen concentration, total phosphorus concentration and other parameters, removing abnormal values, and constructing a water quality parameter time sequence data set; causal association among parameters is mined through a causal inference-based hybrid model, a weight matrix is generated, after the matrix and time sequence data are fused, bidirectional time features are extracted through a bidirectional long-short-term memory network in combination with an attention mechanism, attention weights are given, and then a gradient elevator integrated model is input; a plurality of base learners are used for parallel learning and dynamic weighted fusion of local results to obtain a preliminary recognition result, and finally the preliminary recognition result is mapped to a water quality change type space to determine a change type. The system comprises six units, a complete and efficient treatment flow is formed from water quality parameter collection to final recognition result output, and the actual requirements of a water plant for high-precision and high-reliability recognition of inflow water quality changes are practically met.

The invention discloses a micro reagent total phosphorus analyzer and an analysis method, and belongs to the technical field of water quality monitoring. A liquid metering assembly comprises an injection pump, a liquid storage ring and a multi-channel valve; the digestion colorimetric assembly comprises a digestion tube, a heating element, a temperature sensor, a fan, a light source and a photodiode; the liquid discharge assembly comprises a peristaltic pump; a liquid outlet of the injection pump is connected with a first port of the liquid storage ring through the first electromagnetic pinch valve and the second electromagnetic pinch valve in sequence, a second port of the liquid storage ring is connected with a public port of the multi-channel valve, and a sample inlet of the digestion pipe is connected with a first channel of the multi-channel valve and the peristaltic pump through the first high-pressure two-way valve. The other channels of the multi-channel valve are respectively connected with the water sample to be detected, and a total phosphorus detection reagent and a total phosphorus standard solution which are used for carrying out total phosphorus analysis on the water sample to be detected. The micro-reagent total phosphorus analyzer provided by the invention can eliminate cross contamination of reagents, reduce reagent consumption and waste liquid amount, and improve metering precision and detection stability of micro-reagents.

The invention discloses a lake water quality prediction method and system based on a hybrid neural network, and a computer readable storage medium, and belongs to the field of environmental science engineering and deep learning. The method comprises the following steps: screening original water quality data, removing abnormal values, performing linear interpolation, dividing a training set and a test set, decomposing a sequence by using VMD, optimizing VMD parameters by using PSO, reconstructing a new sequence with noise removed, and finally performing prediction by using LSTM-KAN. Through verification of total phosphorus concentration data of four sections of the Dian Lake, comparison with LSTM, VMD-LSTM, VMD-LSTM-KAN and LSTM-KAN models is carried out, and a correlation coefficient (), a mean absolute error (MAE) and a root-mean-square error (RMSE) are selected to evaluate precision. The result shows that the PVLK model has the best performance in single-step and multi-step prediction, the total phosphorus concentration prediction of each section can be kept at 0.75 in 10-step prediction with the step length of 4 hours, the applicability to time sequence data containing abnormal values and high sampling frequency is good, and efficient prediction of lake water quality is effectively promoted.

The invention relates to the technical field of environmental data processing, in particular to an underway water quality total phosphorus content measurement data analysis method, which comprises the following steps of: acquiring underway observation data, calculating a concentration difference and an azimuth angle, modeling a sudden change trend to identify an abnormal region, constructing a projection space to correct attribution, reconstructing a response curve to extract an inflection point, and analyzing trend direction and position offset. According to the method, a continuous line segment is established for the water quality total phosphorus observation value and the coordinate data, and the direction angle and concentration difference is analyzed, so that the spatial gradient trend of concentration change can be dynamically captured, and the sensing capability of the concentration abnormal fluctuation position is improved by identifying the sudden change mode of the concentration change in the boundary region; by constructing a normal boundary projection space and analyzing densities and aggregation directions inside and outside the area, spatial consistency correction of abrupt change area attribution judgment is realized, a concentration response change curve is reconstructed through an inflection point sequence, a change trend of the concentration response change curve is modeled, and a dynamic migration rule of total phosphorus concentration distribution along a water area can be comprehensively disclosed.

The invention provides a sewage enhanced nitrogen and phosphorus removal process based on microbial community interaction, and belongs to the field of sewage treatment. The method comprises the steps of sewage pretreatment, anaerobic phosphorus release, anoxic denitrification, aerobic nitrification phosphorus uptake and the like, an anaerobic-anoxic-aerobic three-section reactor is adopted, and proper ecological nichs are provided for phosphorus-accumulating bacteria, denitrifying bacteria and nitrifying bacteria by accurately regulating and controlling parameters such as dissolved oxygen, hydraulic retention time and carbon nitrogen ratio of each section, so that the phosphorus-accumulating bacteria, the denitrifying bacteria and the nitrifying bacteria can be efficiently degraded, and the phosphorus-accumulating bacteria, the denitrifying bacteria and the nitrifying bacteria can be efficiently degraded. The competition problem of biological nitrogen removal and biological phosphorus removal is effectively relieved, the nitrogen and phosphorus removal efficiency is remarkably improved, the total nitrogen removal rate reaches 85% or above, and the total phosphorus removal rate exceeds 90%; straw-based modified charcoal is adopted as a carrier, so that the loading capacity and activity of functional flora are improved, and flora interaction is enhanced; meanwhile, resource utilization of agricultural wastes is realized, and the method has remarkable environmental benefits and economic advantages.

The invention relates to the technical field of water quality analysis, and particularly discloses a shallow lake water ecological environment quality fluctuation analysis system, which comprises a data acquisition module used for acquiring remote sensing images of shallow lake water ecological environments in different periods; the data processing module is used for preprocessing the acquired remote sensing images of the water ecological environment of the shallow lake in different periods and calculating the total phosphorus concentration of the shallow lake in different periods; the data analysis module is used for analyzing influence factors of increase of the total phosphorus concentration in the shallow lake based on the calculated change rule of the total phosphorus concentration of the shallow lake in different periods; according to the invention, through remote sensing image acquisition, preprocessing and data analysis, dynamic monitoring of the total phosphorus concentration of the shallow lake and deep analysis of influence factors are realized.

The invention relates to an electrochemistry-assisted high-phosphorus-removal sewage treatment device and a treatment method, the electrochemistry-assisted high-phosphorus-removal sewage treatment device is provided with a biochemical pool, a secondary sedimentation pool located behind the biochemical pool, an electrochemical pool located behind the secondary sedimentation pool and a final sedimentation pool located behind the electrochemical pool, the electrochemical pool is internally provided with an electrode assembly, the electrode assembly releases iron ions after being electrified, and the biochemical pool adopts an A2O process; comprising an anaerobic tank, an anoxic tank and an aerobic tank which are sequentially connected, both the aerobic tank and the electrochemical tank are provided with aerators, the final sedimentation tank is provided with an active liquid backflow pipeline, and clarified liquid in the final sedimentation tank flows back to the anaerobic tank and the anoxic tank so as to form and maintain the concentration of iron ions in the biochemical tank. The method is suitable for automatic operation, is beneficial to reduction of manpower and material resources, reduction of medicament input and a new treatment process technology for enabling the sewage quality to reach the standard, can efficiently utilize iron ions released by the electrode through cooperation of a plurality of treatment procedures, can consider main control indexes of total phosphorus, ammonia nitrogen, total nitrogen, COD and the like, and realizes efficient nitrogen and phosphorus removal.

The present application relates to water quality detection and analysis technical field, specifically to a kind of water total phosphorus multi-parameter synchronous detection method based on water, comprising: after the original water sample is pretreated, the standard test solution obtained is simultaneously introduced into parallel digestion tank and optical cell, and the digestion and conversion of phosphorus compound and the collection of water sample background spectrum are completed synchronously.Digestion liquid is distributed to multiple independent color developing channels, each channel uses characteristic color developing agent configured for different concentration interval or interference condition, concurrent color developing reaction is carried out under the same environment, and the reaction kinetics time sequence spectrum of each channel is collected.The background spectrum and all kinetic spectrum sequences are input into integrated calibration model for data fusion and cross analysis, and total phosphorus content detection result is directly output.The method realizes wide concentration range, high anti-interference capability of water total phosphorus rapid and accurate detection by parallel acquisition of homologous background information and multi-reaction channel kinetic data.

The invention relates to the technical field of sewage / black and odorous water body treatment, in particular to an efficient total phosphorus filtering device and a control method thereof. The efficient total phosphorus filtering device comprises a filter element which comprises an outer PP crude fiber filter material layer, a middle PP fine fiber gradient layer and an inner PP superfine fiber densified layer which are arranged in sequence; wherein the porosity of the outer-layer PP crude fiber filter material is 80-90%, and the aperture of the outer-layer PP crude fiber filter material is 0.9-1.0 [mu] m; the porosity of the middle PP fine fiber gradient layer is 78%-65%, and the aperture of the middle PP fine fiber gradient layer is 0.8-0.5 [mu] m; and the porosity of the inner PP superfine fiber densified layer is 40-60%, and the aperture of the inner PP superfine fiber densified layer is 0.22-0.4 mu m. According to the filter element provided by the invention, through pure physical structure innovation, the colloidal phosphorus rejection rate can be more than 90% (0.22-1 mu m) on the premise of not using chemical modification; furthermore, the efficient total phosphorus filtering device provided by the invention realizes zero chemical addition, and creates a new green water treatment path.

The invention belongs to the technical field of soil improvement, and particularly relates to stenotrophomonas maltophilia C-GD and application thereof in nitrogen fixation. The nitrogenase activity of the stenotrophomonas maltophilia C-GD is 45.90 (ng / g / 24h), and the stenotrophomonas maltophilia C-GD shows relatively good nitrogen fixation activity and can be used for nitrogen fixation of soil. The invention provides a strain of Stenotrophomonas maltophilia C-GD with a nitrogen fixation function, and after the Stenotrophomonas maltophilia C-GD is prepared into a microbial inoculum to be applied, the key nutrient indexes of organic matters, total nitrogen, total phosphorus, available phosphorus, alkali-hydrolyzable nitrogen and the like in soil can be greatly improved.

The invention discloses an emergency compound agent for coping with short-term total phosphorus increase of a surface water body, and belongs to the field of emergency compound agents for coping with short-term total phosphorus increase of the surface water body. A preparation process comprises the steps of preparing a PAC solution, preparing a diatomite modifier, preparing modified diatomite, preparing the emergency compound agent and the like. The steps of ultrasonic loading, calcining, washing and the like are added in the process, so that the adsorption precipitation capacity of the modified diatomite is improved; and compounding agents with different mass ratios are prepared according to the phosphorus content of the treated water body, so that the application range and the capability are improved. The method is simple to operate, green and environment-friendly, and by modifying the diatomite raw material and increasing the loading degree of the modified diatomite, the adsorption and precipitation capacity of the prepared modified diatomite can be remarkably improved, and the stability after adsorption and precipitation is promoted, so that the use performance and the application range of the prepared emergency compound medicament are effectively improved.

The application discloses a kind of lake total phosphorus concentration spatio-temporal evolution and driving factor identification method, and the application relates to water environment monitoring technical field, constructs water body, sediment and in and out lake river multi-medium linkage analysis system, carries out multi-scale spatio-temporal evolution analysis and multi-path mechanism quantization, realizes the accurate identification of scene main control driving factor, and the standardization analysis process is formed by verification solidification, the application has the advantages that by constructing water body, sediment and in and out lake river multi-medium linkage full-dimensional analysis system, simultaneously integrate multi-source spatio-temporal data covering full lake area function partition, complete hydrological year cycle, carry out the coupling analysis of multiple time scales and multiple spatial dimensions, break through the industry common defects that the evolution law of total phosphorus concentration is not comprehensive, data is insufficiently representative, and the whole chain variation characteristics cannot be clarified, caused by the fact that the prior art only focuses on single medium of water body, uses scattered point position low-frequency monitoring data.

1. The name of the design product: full-automatic total phosphorus and total nitrogen intelligent analyzer. 2. The use of the design product: for detecting total phosphorus, total nitrogen and other indicators of water quality. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The application discloses a production process for preparing composite carbon source by utilizing fruit and vegetable waste resources, and comprises the following steps: raw material pretreatment, anaerobic fermentation for acid production, composite enzymolysis, deep solid-liquid separation, composite blending, and stabilization treatment; the blending carbon source liquid is pumped into the stabilization treatment tank, 0.1%-0.3% of a compounded stabilizer is added, the pH value is adjusted to 6.0-7.0, normal-temperature standing is carried out for 12-24 hours, product detection and storage are carried out, the carbon source product after the stabilization treatment is detected in terms of COD, total nitrogen, total phosphorus, the pH value and the content of small-molecule organic acid, and after each index is qualified, the product is sealed and packaged and stored in a cool and dry environment, and the application solves the technical problems of high cost, poor safety, single fruit and vegetable base carbon source component, low degradation efficiency and poor product stability of traditional carbon sources.

The application discloses a method for predicting total phosphorus index of effluent in a sewage treatment process. The method comprises the following steps: constructing a data set containing multi-dimensional time sequence characteristics and preprocessing; performing batch normalization and working condition random mask on input data; adopting exponential moving average to decompose into trend item data and residual error item data; inputting the trend item data and the residual error item data into two LSTM-Attention branches respectively to extract long-period trend and multi-feature coupling dependence; dynamically fusing the trend item features and the residual error item features through an adaptive gating mechanism; finally, performing initial prediction through a deep learning backbone network, and performing secondary correction on the prediction residual by a lightweight gradient boosting machine model to output the final total phosphorus prediction value. Through time sequence decoupling, double-branch customized extraction, adaptive fusion and two-stage hybrid correction, the application significantly improves the prediction accuracy and robustness, and is suitable for early warning of total phosphorus of effluent in a sewage plant.

The application discloses a polysaccharide-producing desertifilum sp., and application of the polysaccharide-producing desertifilum sp. in high-nitrogen and high-phosphorus wastewater treatment, and the algae strain named desertifilum sp. ZSL-NS5 has been preserved in China Center for Type Culture Collection on November 7, 2024, and the preservation number is CCTCC NO. M 20242470. The algae species is separated from wastewater in an oxygen pond of a dairy farm, has strong wastewater tolerance and pollutant purification capacity, the removal rate of total phosphorus is more than 95%, the removal rate of ammonia nitrogen is close to 100%, the removal rate of TN is more than 85%, and the removal rate of COD is more than 70%. In addition, the desertifilum sp. has the ability to produce microalgae EPS and polysaccharides, the polysaccharide content reaches 63%, which is significantly higher than the yield of ordinary microalgae, and has application values in preparation of chemical raw materials and preparation of medicines.

The invention provides a Fe-ZSM-5 catalyst, a preparation method of the Fe-ZSM-5 catalyst and application of the Fe-ZSM-5 catalyst in an N2O oxidation reaction. The Fe-ZSM-5 catalyst comprises a phosphorus modified Fe-ZSM-5 molecular sieve, wherein the phosphorus modified Fe-ZSM-5 molecular sieve comprises a phosphorus element PM introduced into the Fe-ZSM-5 molecular sieve in an Al-O-P chemical bond combination manner; the mass ratio of PM to Al in the Fe-ZSM-5 catalyst is at least 0.6; the PM accounts for at least 62wt% of the total phosphorus content in the Fe-ZSM-5 catalyst. According to the invention, the catalytic stability of the Fe-ZSM-5 catalyst can be improved, and the application prospect is wide.

1. The name of the design product: full-spectrum multi-parameter water quality online analyzer (SECCO-L-1905). 2. The use of the design product: for analyzing and detecting key water quality indicators such as total phosphorus, total nitrogen, COD, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, etc. in water, online monitoring, fixed and mobile monitoring of water quality in "source-net-plant-river" multiple scenes, and water pollution prevention and supervision. 3. The design points of the design product: the combination of the shape and pattern of the product as a whole. 4. The picture or photo that best indicates the design points: perspective view 1.

The present application belongs to the technical field of nitrogen and phosphorus non-point source pollution key source area identification, and relates to a nitrogen and phosphorus non-point source pollution key source area identification method based on weighted feature importance. Watershed water system, underlying surface conditions, meteorological, hydrological and water environment data are collected and arranged to establish a watershed nitrogen and phosphorus non-point source pollution tracing basic data set. A RF model, a GBRT model, an XGBoost model and a CatBoost model are used to construct a basic model for simulating total nitrogen and total phosphorus flux, and a Ridge model is used to construct a meta-model for simulating total nitrogen and total phosphorus flux. The basic model is applied to carry out sub-basin feature importance analysis, and the meta-model is applied to carry out basic model weight analysis. By analyzing the weighted feature importance of the sub-basin, the nitrogen and phosphorus non-point source pollution key source area is identified according to the importance from high to low. The present application makes up for the shortage of the existing non-point source pollution key source area identification method based on mechanism model, i.e. more parameters and difficult calibration.

The invention relates to a phosphorus chemical wastewater treatment method, and belongs to the field of phosphorus chemical wastewater treatment.The method comprises the steps that wastewater is introduced into an electrochemical reaction zone, OH <-> is generated through cathode electrolysis to form a local high-pH micro-zone, and calcium and magnesium ions and phosphate radicals are induced to generate nanoscale crystal seeds in situ; a seed crystal-containing mixed solution enters a fluidized bed crystallization area at the flow speed of 20-60 m / h, and hydraulic classification and crystal growth are realized through dynamic matching of the flow speed and the particle settling speed; a seed-rich concentrated solution obtained after solid-liquid separation returns to the system according to the reflux ratio of 20%-50%; through linkage of online monitoring and an intelligent control unit, the current density and the reflux ratio are adjusted in real time, and a subarea self-stabilizing environment with the pH value of a cathode near area being 9.5-11.0, the pH value of a main body solution being 7.5-8.5 and the pH value of an anode near area being 6.5-7.5 is formed in the reactor; and the particles at the bottom are automatically discharged when growing to 0.5-2.0 mm. According to the invention, the total phosphorus in the effluent is stably lower than 0.5 mg / L, the purity of the recovered phosphate particles is greater than or equal to 85%, the sludge yield is reduced by more than 80%, the operation cost is reduced by 50%, the system has self-adaptive impact resistance, and efficient removal and recycling of phosphorus are realized.

The invention relates to a soil microorganism high-efficiency water purification filter material and a preparation process thereof, and aims to solve the problems of low removal efficiency, high cost, easiness in secondary pollution, insufficient affinity with soil microorganisms and the like of the existing microorganism filter material. The filter material is prepared by taking volcanic rock, activated carbon, bentonite and modified cellulose as main raw materials, combining the main raw materials according to a specific ratio, preparing porous particles by virtue of processes such as calcining, activating, mixing, granulating and sintering, and finally loading the porous particles by virtue of a microbial bacterial liquid. The product has a large specific surface area, good adsorption performance and high chemical stability, and can provide an excellent adhesion and growth environment for soil microorganisms. Experiments prove that the filter material can significantly improve the removal efficiency of pollutants such as COD, ammonia nitrogen and total phosphorus in sewage, and the filter material has the advantages of easily available raw materials, low cost and environmental friendliness, and is suitable for the fields of sewage treatment, ecological restoration and the like.

The invention relates to the field of water treatment and environmental engineering, in particular to a water quality dynamic response-based intelligent proportioning method for a river channel conditioning agent and a composition, and the composition comprises a composite flocculation matrix, a microbial activation component, an oxidation pre-control component, a synergistic carrier and a water quality response conditioning agent. According to the method, ammonia nitrogen, total phosphorus, chemical oxygen demand and water temperature are detected, the nutritive salt ratio R is calculated, the ratio is dynamically adjusted in combination with a temperature correction coefficient Kt, and repeated measurement and secondary correction are conducted 24 hours after 70% of agents are added for the first time. According to the application, accurate response to water quality fluctuation can be realized, the pollutant removal efficiency is improved, and bottom mud generation and agent waste are reduced.