182 results about "Pollution water" patented technology

The invention relates to the technical field of water sampling, in particular to a floater fixed-depth sampling device for polluted water, which comprises a lifting rope, a sampling barrel, a floating ball and a pull rope, the lifting rope is sleeved with a sliding frame in a sliding mode, and the floating ball is horizontally installed on the sliding frame in a sliding mode and connected with the sliding frame through an elastic piece. A winding unit is arranged on the sliding frame; a piston plate is mounted in the sampling barrel in an up-down sliding manner, is connected with the sampling barrel through an elastic rope, and is connected with a lifting rope through a piston column. The stopping assembly is arranged to limit movement of the piston column, the releasing amount of the pull rope is adjusted according to movement of the floating ball under the action of water flow, the stopping assembly is unlocked through the pull rope connected to the floating ball, when the sampling barrel reaches the sampling depth, the pull rope is just tightened to relieve limitation of the stopping assembly to the piston column, and it is guaranteed that the sampling barrel conducts sampling at the sampling depth; the influence of movement of the floating ball under the water flow effect on the sampling depth of the sampling barrel is eliminated, and sampling is more accurate.

The invention discloses a water environment pollution water treatment and purification device and a purification method thereof, and belongs to the technical field of water treatment, the water environment pollution water treatment and purification device comprises a water inlet tank, a treatment tank is fixedly connected to one side of the water inlet tank, a water outlet tank is fixedly connected to one side of the treatment tank, and water pumps are fixedly connected to the water inlet tank and the water outlet tank; the input end of the water pump is fixedly connected with a water pumping pipe. According to the conveying device, the first motor drives the transmission wheels to rotate, the transmission wheels drive the belt and the other transmission wheel to rotate synchronously, then the connecting shaft rotates, the connecting shaft drives the reciprocating lead screw to move in the fixing plate, the reciprocating lead screw pushes the threaded cap to move, the threaded cap drives the transverse plate to move synchronously, and then the conveying cylinder moves stably in the horizontal direction. Chemical agents can be evenly distributed in the treatment box, the chemical agents and sewage are fully mixed through continuous stirring of the stirring blades, the purification effect is achieved, and finally treated water is sucked into the water outlet box through the water pump and discharged through the water outlet valve.

The invention discloses a polluted water body online monitoring method and device for sewage treatment, and particularly relates to the technical field of sewage treatment monitoring. Monitoring equipment is deployed in a sewage pretreatment stage, a physical and chemical treatment stage, a biological treatment stage, an advanced treatment stage and a discharge stage and used for monitoring characteristic parameters of a polluted water body; an intelligent regulation and control instruction is generated by analyzing monitoring data of each stage, and processing process parameters are dynamically adjusted, so that process optimization is realized; according to the method, a data monitoring stability coefficient and a comprehensive pollution over-limit coefficient are calculated, a sewage treatment monitoring quality index is calculated in combination with an intelligent regulation and control reliability coefficient and a data monitoring reliability coefficient, and a method for quantitatively evaluating a monitoring effect is provided; by collecting process data in a sewage treatment log and combining with a monitoring result, the monitoring effect standard-reaching rate is dynamically updated, and a'monitoring-regulation-evaluation-optimization 'closed loop is formed.

A method, a system and an apparatus for determining pollutant control strategy, and a computer device. The method includes: obtaining water body data of different locations of a polluted water body and historical sample water body data of different pollution levels, and identifying pollutant distribution information; collecting water flow information of the polluted water body, and generating a pollutant control strategy for the polluted water body; executing the pollutant control strategy, and detecting change information of the water body data of each location; adjusting the pollutant control strategy for the polluted water body to obtain a new pollutant control strategy, replacing the pollutant control strategy with the new pollutant control strategy, iteratively executing steps of executing the pollutant control strategy and detecting the change information of the water body data of each of the different locations, until current water body data of each location meet a standard water body condition.

The invention relates to the technical field of self-adaptive degradation control scheme design based on tetracycline polluted water, in particular to a self-adaptive degradation control method and system based on tetracycline polluted water. The method comprises the following steps: arranging a plurality of monitoring points in a polluted water body, monitoring water quality parameters such as tetracycline concentration, dissolved oxygen, pH value and the like in real time, fusing and processing data, and predicting the degradation condition by using a tetracycline degradation model. When the water quality parameters meet the preset conditions, a feedback adjusting mechanism is triggered, and the microbial flora putting amount, the nutrient substance supply amount and the environmental conditions (temperature and pH value) are automatically adjusted. The invention also provides a microbial flora feeding amount, a nutrient substance supply amount adjusting rule and an environmental condition adjusting mode. The system comprises a monitoring module, a data analysis module and a feedback regulation module. According to the invention, self-adaptive control of tetracycline polluted water degradation is realized, the degradation efficiency is effectively improved, and the stable treatment effect is guaranteed.

The invention provides sampling equipment for lithium ore flotation tailing recovery and a resource recovery method, and relates to the technical field of recovery sampling, the sampling equipment comprises a mounting frame, a movable sampling mechanism, an adjusting gear and an inerting protection mechanism; the movable sampling mechanism comprises a sliding rail, a movable seat, a rotating seat and a sampling cup, the movable seat is slidably connected with the sliding rail, the rotating seat is fixedly arranged at the top of the movable seat, the inner side of the rotating seat is rotatably connected with a rotating shaft, the front end of the rotating shaft is fixedly connected with the sampling cup, and the sampling cup is fixedly connected with the movable seat. And the rear end of the rotating shaft is fixedly connected with the adjusting gear. According to the scheme, nitrogen in the nitrogen cylinder is finally sprayed out through the hose and the spray head, a nitrogen curtain is formed at the sampling end of the sampling cup, amine substances in foam are prevented from being oxidized by air, the viscosity of a foam sample is prevented from being sharply reduced, and the accuracy and representativeness of foam viscosity detection data are improved; the use amount of the amine medicament can be adjusted in a targeted manner, and the polluted water body can be treated.

The application discloses a method for photocatalytic degradation of perfluorooctanoic acid in water by using boron hydroxide, and belongs to the field of wastewater treatment. The method comprises the following steps: adding boron hydroxide as a photocatalyst into water containing perfluorooctanoic acid, mixing thoroughly, and then performing a photocatalytic degradation reaction under a light source; the light source is ultraviolet light, yellow light or red light; and the pH of the water containing perfluorooctanoic acid ranges from 3 to 7. The method uses boron hydroxide (Al(OH)3, Ga(OH)3 and In(OH)3) which is low in cost and simple in preparation process to perform photocatalytic degradation of perfluorooctanoic acid, can improve the degradation efficiency of perfluorooctanoic acid in water, and can perform photocatalytic degradation under different light sources and in a wide pH range, so that the application range of photocatalysis is expanded, and the method is conducive to the treatment of PFOA contaminated water in actual production.

The invention provides an urban green land runoff pollutant intercepting and discharging method and device, electronic equipment and a storage medium, and relates to the technical field of urban water environment governance, and the technical scheme is characterized in that real-time pollutant concentration data and water flow velocity field data collected by a monitoring node in a preset path are acquired; identifying a plurality of potential pollution source areas; calculating pollution source coordinates and a diffusion trend; a sequential control strategy for opening and closing the sewage intercepting valve is generated, the sewage intercepting valve is controlled to be opened and closed according to the sequential control strategy, and the sequential control strategy comprises relay flow guide parameters of adjacent valves; when the pollutant concentration data shows that the pollutant concentration exceeds a threshold value, the mobile emergency treatment unit is started according to a sequential control strategy, and multi-stage treatment of the polluted water body is executed. The urban green land runoff pollutant intercepting and discharging method and device, the electronic equipment and the storage medium have the advantages that dynamically changing pollution sources can be rapidly recognized and accurately positioned, and effective pollutant intercepting and treatment are achieved.

The invention relates to a crown ether-loaded solid bubble lithium adsorbent as well as a preparation method and application thereof, belongs to the technical field of lithium adsorption, and solves the problems of low adsorption rate, low adsorption capacity, poor ion selective adsorbability, complex synthesis process, difficulty in separation and recovery, poor regeneration capacity and water environment pollution during lithium extraction of an existing crown ether material. The method comprises the following steps: activating solid bubbles by adopting an alkaline solution; modifying the activated solid bubbles by using a coupling agent; and reacting a crown ether monomer with a lithium salt in a solvent, adding the modified solid bubbles, a catalyst, a cross-linking agent and an initiator, continuously reacting, carrying out solid-liquid separation, washing, drying and eluting. The method is simple and environment-friendly, the stably immobilized crown ether is introduced to the surface of the solid bubble through chemical grafting, and the lithium adsorption performance of the crown ether is improved; the solid bubbles with low density and high stability can endow the adsorbent with the self-floating characteristic, the regeneration performance of crown ether is remarkably improved, and pollution to the water environment is reduced.

The invention provides a sampling system and method for water environment treatment, and the method comprises the steps: determining the water quality change characteristics of a polluted water body through the water quality data of the polluted water body, and determining a pollution hot spot region according to the water quality change characteristics and the pollution source distribution of the polluted water body; extracting layering characteristics of water flow velocity in the polluted water body from the flow velocity data of the polluted water body, and determining a migration trend of pollutants in the polluted water body according to the layering characteristics of the water flow velocity and the polluted hot spot area; determining a dynamic sampling area of the polluted water body according to the concentration gradient of pollutants in the pollution hot spot area and the initial sampling point area; determining the correlation offset of each initial sampling point in the polluted water body according to the migration trend of the pollutants and the dynamic sampling area, and determining a plurality of dynamic sampling points when the polluted water body is sampled according to all the correlation offsets. By adopting the scheme of the invention, the sampling points in the polluted water body can be dynamically adjusted based on the real-time hydrological data.

The application discloses a pressurized mountain mine cave outburst pollution water repair system, which comprises a mountain, a mine cave outflow outlet on the mountain and a gully formed along the trend of the mountain, the gully is located downstream of the mine cave outflow outlet, a mine cave outflow collection pool and at least one stage of sewage treatment devices are sequentially arranged in the gully from high to low in elevation, the sewage treatment devices of each stage each comprise a repair device and a monitoring pool connected to a downstream end of the repair device, the monitoring pool is provided with a standard water outlet directly discharging into the gully and a non-standard water outlet leading into the repair device of the next stage of sewage treatment devices, and the standard water outlet and the non-standard water outlet are each provided with an electric valve. The application can flow through the repair device by using the potential energy of the pollution water, does not need to increase a power source, and realizes the technical effect of reasonable use of the repair material according to the content of the pollutants by means of multi-stage repair and monitoring, which ensures complete repair and avoids unnecessary waste of the repair material.

The invention provides a low-hill mountainous area non-point source pollution intelligent prevention and control and gradient utilization system, and relates to the technical field of low-hill mountainous area agricultural non-point source pollution prevention and control. The system comprises a drainage ditch, a water quality on-line monitoring module, an intelligent gate, a multi-stage ecological ditch pond, a direct drainage channel, an internet-of-things intelligent management and control platform and a stepped rice field. The system drives the intelligent gate to perform diversion according to a pollution index threshold value based on monitoring data, high-pollution water enters the multi-stage ecological ditch pond to be purified, low-pollution water is discharged through the direct discharge channel, and purified tail water is reused for the cascade rice field. Self-flow conveying is achieved by means of the regional height difference, a collaborative prevention and control mechanism of process interception, tail end purification and resource recycling is constructed, scientific prevention and control of pollution, intelligent management and efficient utilization of resources are achieved, the non-point source pollution treatment effect is remarkably improved, and continuous circulation of water and fertilizer resources is promoted.

This invention discloses a method for diagnosing sewage leaks in drainage pipes based on the introduction of clean water, specifically relating to the field of municipal engineering. The method includes: collecting water samples from adjacent manholes at both ends of the pipe to be inspected on a sunny day; pre-treating the samples and then performing fluorescence detection to obtain an initial fluorescence value F; introducing clean water at a known flow rate q0 into the downstream manhole's inlet pipe; after the clean water and sewage are fully mixed, collecting a water sample from the downstream manhole; pre-treating the sample and then performing fluorescence detection to obtain a fluorescence value F' from the downstream manhole; and introducing clean water at a known flow rate into the upstream manhole's inlet pipe; after the clean water and sewage are fully mixed, collecting a water sample from the upstream manhole; pre-treating the sample and then performing fluorescence detection to obtain a fluorescence value F'' from the downstream manhole. By introducing clean water into the upstream and downstream manholes and combining it with the fluorescence conservation principle, the leakage amount and uncertainty are calculated, thus solving the problems of high cost of video detection, low accuracy of flow monitoring, and difficulty in tracing the source of low-pollution water.

The invention provides a preparation method of a TBBPA selective adsorption film. The method comprises the following steps: 1) synthesizing mesoporous silica nanoparticles; the invention discloses a TBBPA selective adsorption membrane and a preparation method thereof, the TBBPA selective adsorption membrane comprises the following steps of 1, TBBPA preparation, 2, base membrane synthesis and 3, blotting membrane synthesis, the TBBPA selective adsorption membrane is suitable for selective adsorption and separation of TBBPA from polluted water, through the design of blotting sites, TBBPA can be selectively adsorbed from analogues, and the TBBPA selective adsorption membrane has good application prospects in the field of selective separation of high-concentration TBBPA pollutants.

The utility model discloses a chlorine gas distributing cylinder, which belongs to the technical field of gas distributing cylinders and particularly comprises a cylinder body, a drain pipe is arranged at the bottom of the cylinder body, and a chlorine gas processing mechanism is connected onto the drain pipe. The chlorine treatment mechanism comprises a collecting barrel, a connecting nozzle is arranged at the top of the collecting barrel, the connecting nozzle is fixedly connected with a drainage pipe, a water diversion plate is fixedly connected in the collecting barrel, and water diversion holes are formed in the water diversion plate; the alkaline agent spraying assembly comprises a water spraying pipe, the water spraying pipe is fixedly connected into the collecting barrel and located below the water distribution plate, and the lower edge of the water spraying pipe is fixedly connected with a spraying nozzle; according to the utility model, condensed water discharged from the chlorine gas distributing cylinder can be collected and treated through the collecting barrel, and an alkaline agent and chlorine gas in the condensed water can be subjected to a neutralization reaction through the alkaline agent spraying assembly, so that untreated chlorine-containing wastewater is prevented from being directly discharged into the environment to pollute a water body and damage a human body and the environment.

The application discloses a hydraulic split-flow well, which comprises a water passing corridor and a cyclone tank. The upstream of the water passing corridor is used for inflow of sewage and combined flow, and initial split-flow is performed by using the cyclone generated by the shape of the water passing corridor and different flow tank height differences. The cyclone tank is communicated with the downstream of the water passing corridor, and the cyclone tank has an annular inner wall and a central water collecting opening, so that water forms a cyclone in the cyclone tank, and solid pollutants such as mud in the water are deposited on the inner wall by centrifugal force, and intercepting water with the solid pollutants removed is discharged through the water collecting opening. The above-mentioned hydraulic split-flow well separates solid pollutants such as mud in sewage and combined flow by hydraulic form control, and the cyclone can make the mud in the water deposit, so that initial rainwater in the intercepting well and dry flow sewage are preliminarily treated. Therefore, the problems of excessive mud deposition in municipal rainwater pipelines and excessive suspended pollutants and BOD in the water discharged from the intercepting well to pollute the water body are solved.

The invention relates to a water area suspension pollution detection and evaluation method which comprises the following steps: constructing a space coordinate system, and implanting a water body and a terrain model into the space coordinate system; measuring the initial water body turbidity Tj of the water body to be detected; obtaining detection coordinates (xi, yi, zj) of the turbidity determination module; constructing a water body turbidity model (x, y, z, T '); judging whether the water body turbidity T'is greater than a preset standard water body turbidity T standard, if so, judging that the water body to be detected is a polluted water body, and if not, judging that the water body to be detected is a qualified water body. Detection can be carried out in real time, obtained data are accurate, the detection cost is low, detection of a single detection point is avoided, the detection data volume is large, and the data are accurate; by constructing the water turbidity model, observation is convenient and visual, data are accurate, detection is convenient, detection data can be obtained in real time, data processing is timely, and timely countermeasure processing is facilitated.

Disclosed in the present invention are a microbiome with a highly-efficient tetrabromobisphenol A degradation function on the basis of cell-surface hydrophobicity, a construction method therefor and the use thereof. According to the present invention, microorganisms with a high cell-surface hydrophobicity are introduced into a tetrabromobisphenol A-degrading microbial community to construct a microbiome, which can effectively improve the degradation and removal efficiency of tetrabromobisphenol A by the microbiome, can provide an engineered microbial preparation for wastewater treatment and contaminated water body remediation or sediment remediation, and can also provide theoretical guidance for the application thereof in wastewater treatment and contaminated water body remediation or sediment remediation.

The utility model discloses a water quality purification bed suitable for slightly polluted water, which comprises an external frame and an internal frame arranged in the external frame, a slide rail and two moving wheels are arranged between the upper part of the external frame and the upper part of the internal frame, and the two moving wheels can move on the slide rail. A waterproof weather screen is arranged between the two moving wheels, the two ends of the waterproof weather screen are connected with the two moving wheels respectively, a layer of flexible material net cage is arranged in the inner frame, a plurality of polyurethane filler bodies are placed in the net cage, an aeration system is arranged below the inner frame, the aeration system comprises a micro-nano aeration main pipe, and the micro-nano aeration main pipe is connected with the outer frame. One or more aeration disc assemblies are arranged on the micro-nano aeration main pipe, and the aeration disc assemblies are connected with the micro-nano aeration main pipe through first aeration branch pipes.

The utility model discloses a water quality and quantity on-line monitoring system installed in a tube well, which comprises a shell, a plurality of interfaces are arranged at the top of the shell, a main control system and an automatic cleaning system are arranged in the shell, a water sensor is arranged at the bottom of the shell, and the main control system is respectively connected with the automatic cleaning system, the plurality of interfaces and the water sensor; according to the utility model, through the control of the master control system, the water quality, water quantity and water level information of a pipe network is monitored completely, for example, the system is connected with a full-spectrum sensor to monitor COD and ammonia nitrogen indexes, and is connected with a liquid level sensor and a flow velocity and flow sensor to monitor the indexes such as liquid level, flow velocity and flow in a pipe well, and meanwhile, the system can support and expand other types of sensors; corresponding water quality indexes are monitored, and the omnibearing monitoring requirement of the tube well is met; meanwhile, a high-pressure pneumatic self-cleaning function can be realized, and self-operation of the sensor can be realized without manual maintenance and cleaning under the condition of high-pollution water quality of a sewer pipe network by combining a fitted full-spectrum model.

The invention provides an anti-pollution water drinking device, which comprises a water drinking trough, a water storage tank, a water storage tank and a water storage tank, and is characterized in that the water drinking trough is provided with an inner cavity; the two protection plates are arranged at the open end of the inner cavity in a sliding mode; the driving assembly is connected with the two protection plates and used for opening or closing the inner cavity; and the return assembly is connected with the driving assembly, so that the inner cavity is kept in an open state under the action of external force, or the inner cavity is kept in a closed state when the external force disappears. The technical problem that in the prior art, a livestock water drinking device is prone to being polluted by the outside world is solved.

The invention provides a slope cropland runoff pollution water sample collection device and method, and belongs to the technical field of pollution water sample collection. Comprising a telescopic mechanism, the end of the telescopic end of the telescopic mechanism is fixedly connected with a telescopic end connecting base, and the end of the base end of the telescopic mechanism is fixedly sleeved with a handheld base sleeve; the water sample collection mechanism is used for collecting a runoff pollution water sample of the slope cropland and comprises a water sample collection assembly group and an auxiliary extension assembly group which are sequentially arranged on a telescopic mechanism; wherein the water sample collection assembly group comprises a collection driving assembly and a sample collection head which are connected with each other. By arranging the water sample collection mechanism, on the basis of impurity cleaning, pollution prevention, precise control and damping protection, the problems that an existing slope cropland runoff pollution water sample collection device is difficult to operate, samples are prone to pollution, and conditions are difficult to unify are comprehensively solved; a high-quality slope cropland runoff pollution water sample collection scheme is provided for agricultural scientific research and ecological monitoring.

The invention relates to application of a CoFe-PBA-coated MXenes nano confinement catalytic membrane, the CoFe-PBA-coated MXenes nano confinement catalytic membrane is combined with peroxymonosulfate to treat a polluted water body, and a pollutant of the polluted water body is bisphenol A. The CoFe-PBA-coated MXenes nano confinement catalytic membrane has the advantages that the CoFe-PBA-coated MXenes nano confinement catalytic membrane can be used for treating the polluted water body; according to the method disclosed by the invention, the bisphenol A in the water is removed by activating the peroxymonosulfate by using the CoFe-PBA-coated MXenes nano confinement catalytic membrane, and the method has the advantages of simplicity in operation, small secondary pollution and high removal rate.

The invention discloses a method and a system for purifying and recycling wastewater in extraction of vanadium pentoxide from stone coal, and relates to the technical field of wastewater purification. The system comprises a rack, a control module is mounted on the rack, a water inlet pipe and a water outlet pipe are mounted on two sides of the rack respectively, and ultrafiltration devices are uniformly mounted in the middle of the rack; the water inlet pipe and the water outlet pipe are respectively communicated with two ends of the ultrafiltration device; according to the scheme, the uneven sewage treatment amplitude of the ultrafiltration membrane can be adjusted by arranging the linkage adjustable brake mechanism, so that the dynamic adaptation to the water quality change can be realized, the amplitude of the ultrafiltration membrane can be increased and the stripping of sediments on the surface of the ultrafiltration membrane can be enhanced by adjusting the distance of the sliding seat when the water quality is highly polluted, and the device can be used for the low-pollution water quality. By adjusting the distance between the sliding seats, the amplitude of the ultrafiltration membrane is reduced, membrane damage caused by excessive disturbance of the ultrafiltration membrane is avoided, and the cleaning efficiency of pollutants containing colloids and the like is improved by 40%.

Apparatus and method for decontaminating both contaminated waters and sorbent filter media, either separately or simultaneously, in a single system. Contaminants in a liquid flowing through a reaction chamber are removed by first generating a plasma within the liquid in the chamber, with the contaminants being broken into smaller particles at the interfaces between the generated plasma and the liquid. The combined plasma-liquid solution is then passed through a solid filter, which captures the smaller contaminant particles to decontaminate the liquid. To decontaminate the filter media, plasma flows through the filter material without the presence of liquid, the plasma reacting with the filter material to remove contaminants previously adsorbed by the filter.

The application discloses a water body pollution treatment device with a detection function and relates to the technical field of water body pollution treatment.The device comprises a circulating mechanism, the output end of the circulating mechanism is fixedly connected with a separation mechanism, the separation mechanism comprises a separation box, an embedded frame and an adsorption ball, the inner surface wall of the separation box is fixedly installed with a partition plate, a group of sliding grooves are formed in the outer wall of the partition plate, two automatic sensing female heads A are fixedly inserted into the partition plate, the inner surface walls of the sliding grooves are slidably embedded with sliding blocks, and precise instruments are arranged in the embedded groove of the separation box to detect different chemical indexes of sewage, so that the sewage is classified into domestic sewage, industrial wastewater and agricultural wastewater, and is stored in different spaces respectively, precise classification is realized, suitable purification paths and treatment processes are selected according to the types of the sewage, the treatment capacity for different types of sewage is improved, and the treatment demand of complex mixed pollution water bodies is met.

This invention discloses a non-contact portable sampling device for polluted water bodies, comprising a support, a sampling component, a deployment and retraction component, and a collection component. The sampling component includes a mounting sleeve, a ring-shaped sampling tube, and a sampling pump. The deployment and retraction component includes a mounting plate and a first winding reel snapped onto the mounting plate, with a first pull cable connected to the mounting sleeve on the first winding reel. The collection component includes a transfer box mounted on the support and a collection bottle inside the transfer box. The device structure of this invention is reasonably designed. By using the support to suspend the sampling component on the water surface, the entire sampling work can be completed by the staff standing on the riverbank, reducing the risk of staff falling into the river and improving the safety of the device. At the same time, the device of this invention does not require staff to come into contact with the water sample during use, which reduces the harm caused by polluted water to the staff and also avoids the water sample being contaminated by external factors, thus affecting the water sample detection results.

The present application relates to a kind of salt-tolerant bacteria generator for open water, water-soluble-microbial degradation type container is placed in the cavity of internal airtight mixed with salt-tolerant bacteria and growth factor biological carrier.There is beneficial effect: when salt-tolerant bacteria generator is put into open water, water-soluble-microbial degradation type container in water-soluble material will start to dissolve when meeting water, let water-soluble-microbial degradation type container form pore structure on wall, and sewage can flow into its inner cavity through the pore structure, and contact salt-tolerant bacteria and growth factor, growth factor will prompt salt-tolerant bacteria to start quickly, to carry out depollution treatment to sewage, salt-tolerant bacteria can also be released and enter open water through pore structure, the salt-tolerant bacteria generator can provide the environment condition suitable for the growth of salt-tolerant bacteria, and has salt-tolerant bacteria slow-release function, to gradually release salt-tolerant bacteria to contaminated water body, so that salt-tolerant bacteria have time and condition to gradually adapt to contaminated water area, while exerting long-acting pollutant reduction effect.

This application discloses a municipal engineering water supply and drainage system, relating to the field of municipal construction, including a water pipe 1 and a water pipe 2 connected to each other. The water pipe 1 has a groove along its length, into which an extension pipe is embedded. The water pipe 1 is equipped with a cylinder for driving the extension pipe to extend or retract into the groove. A filter screen is installed on the extension pipe. The extension pipe is inserted into the water pipe 2 to connect the water pipe 1 and the water pipe 2. A replacement ring box is installed on the extension pipe, with a cavity for collecting debris. When the extension pipe is inserted into the water pipe 2, the replacement ring box is fitted onto the outer wall of the water pipe 2. When the extension pipe is submerged in the groove, the replacement ring box connects the water pipe 1 and the water pipe 2. This application, through the installation of the replacement ring box and the extension pipe, allows debris accumulated in front of the filter screen to be discharged into the cavity, clearing the waterway and reducing the frequency of manual pipe cleaning. It also discharges debris into the water body, preventing the debris from rotting and polluting the water.

The invention provides a riverway treatment method and device based on polluted water data, and belongs to the technical field of sewage treatment.The riverway treatment method based on the polluted water data comprises the steps that pollution logs are generated by obtaining multi-source data, a pollution capacity account book is inquired, and a micro-stagnant storage area is constructed; according to the method, passive disaster bearing is converted into active pollution discharge, precious time and space are won for pollution control, cooperation of scheduling behaviors and natural laws is achieved by optimizing a power emission window, the economy of actions is ensured, the whole river regulation system is converted into a feedforward and self-adaptive closed-loop system from a scattered and lagged system, and the control efficiency of the river is improved. And the efficiency and economy of urban river network water environment management are improved.