162 results about "Contaminated water" patented technology

The invention discloses a rapid treatment device and method for neonicotinoid pesticide polluted water in a river network area, and belongs to the technical field of water treatment. The device comprises a mixing unit, a settling separation unit and an adsorption medium circulating unit, the mixing unit is provided with a tangential water inlet and an adsorption medium feeding port; the settling separation unit is used for realizing rapid gravity separation of the adsorbed medium and water; and the adsorption medium circulation unit is used for medium recovery and regeneration. The invention also discloses a special core-shell structure composite particle adsorption medium and a preparation method thereof, and a rapid adsorption treatment method based on the device. Through the physical process of eddy enhanced mixing-rapid settling separation, the problems that a traditional adsorption technology is low in treatment speed, prone to blockage and low in flux are solved, and the device and the method are particularly suitable for emergency treatment of sudden and large-flow trace neonicotinoid pesticide polluted water in river network areas and have the advantages of being rapid in response, large in treatment flux, reliable in operation and low in cost.

The process for producing and using polymeric Hydrocells for production of atmospheric water using a superabsorbent polymer derived from alkaline hydrolysis of the polyacrylonitrile (PAN). The Hydrocell adsorbs up to 80% of its weight in atmospheric water under ambient conditions and releases this water when heated to less than 100° C. using renewable energy sources, such as solar energy. This low-temperature operation allows for repeated adsorption and desorption cycles lasting years without degradation. Multiple Hydrocells can be arranged into Hydrobatteries with a surface area greater than 2 m2, capable of adsorbing several kg of water per day. The Hydrocells offer a sustainable and safe solution for producing potable water free of toxic chemicals and pathogenic microorganisms in regions with limited water resources. By drawing water from the vast atmospheric reservoir containing over 13,000 km3, this can help prevent deaths caused by the consumption of contaminated water.

Various embodiments provide methods for removing concentrations of PFAS from a contaminated stream of water or leachate. In a primary pretreatment stage, the incoming contaminated water is mixed with a hydrophobically associative gelling aid to generate an electroactive microgel with PFAS. In a secondary electrochemical oxidation stage, the electro-active microgel is reacted to reduce the PFAS carbon chain length. In a tertiary electrochemical coagulation stage, microhydrogels are generated which adsorb the degraded PFAS molecules and form microflocs. Lastly nanoparticles are added to the micro hydroflocs to aggregate the micro hydroflocs into macroflocs for easy flotation and removal.

The present invention relates to a method for sanitising, disinfecting or sterilising microbially contaminated water-containing fluids, comprising treating the microbially contaminated water-containing fluid with an oxidising agent, wherein a fluorescence measurement is carried out on the water-containing fluid before, after and / or during treatment of the microbially contaminated water-containing fluid with the oxidising agent. The fluorescence measurement comprises irradiation with an excitation wavelength characteristic of a fluorescent protein and / or peptide building block and measurement of the corresponding fluorescence signal, and the method is characterised in that treatment with the oxidising agent proceeds in such a way that addition of the oxidising agent is controlled as a function of the fluorescence signal. The invention further relates to a corresponding device for sanitising, disinfecting or sterilising microbially contaminated water-containing fluid.

The utility model relates to an aluminum shell cleaning wastewater recycling treatment system, including cleaning machine pure water tank, quartz sand filter vat, activated carbon filter vat, heating water tank, cleaning machine cleaning tank, sewage collection pond and filter water bucket, the output of cleaning machine pure water tank is connected sewage collection pond, and the top one side of cleaning machine pure water tank is provided with overflow sewage outlet, and the slightly contaminated water of cleaning machine is collected to sewage collection pond through overflow sewage outlet, the output of sewage collection pond is connected quartz sand filter vat, and the output of quartz sand filter vat is connected with activated carbon filter vat, and activated carbon filter vat is connected filter water bucket through pipeline, filter water bucket connects heating water tank, and heating water tank is connected cleaning machine cleaning tank through pipeline, and the on -line detection instrument of PH value is set up on cleaning machine cleaning tank, the utility model can solve the pressure of sewage treatment, reduce the production cost of enterprise, make the cleaning of sewage only need simple processing to use, simple operation can greatly improve production efficiency.

A water treatment system for the treatment of red tide contaminated water is provided. The system utilizes a cavitation system combined with the addition of compressed air or concentrated oxygen into the fluid flow. The system is able to very efficiently destroy red tide organisms as well as the toxins they create—brevetoxins.

The invention discloses a device and method capable of dynamically monitoring heavy metal polluted water and soil repaired through an EICP technology, the device comprises a support, three monitoring systems and a grouting system, the first monitoring system comprises a measuring box, a top cover, a motor, a grouting hole, a transmission shaft, a gear, an inner gear ring, a stirring sampling pipe, a supporting rod, a sheet type multifunctional sensor and a sampling opening; the second monitoring system comprises a liquid conveying hose, a flow control valve, a peristaltic pump, a pump pipe, a measuring box, a raw material box, a waste liquid box, a conductivity meter and a magnetic stirrer; the third monitoring system comprises a support frame, a transfusion hose, a flow control valve, a peristaltic pump, a pump pipe, a centrifugal filter, a measuring box, a raw material box, a waste liquid box and an atomic absorption spectrophotometer; the grouting system comprises a urease solution barrel, a urea solution barrel, a three-way pipe and a suction pump. Biological, chemical and physical indexes in the repairing process can be monitored in real time, and the repairing process can be known.

The present application relates to a kind of carbonized iron and nitrogen coordination iron co-doped nitrogen and graphene carbon material and preparation method and application, with six hydrated ferric chloride as iron source, with chitin as nitrogen, carbon source. By simple one-step method, after mixing, calcination, grinding way, carbonized iron and nitrogen coordination iron co-doped nitrogen and graphene carbon material is synthesized.The material prepared by the present application presents two-dimensional layered structure, after adding potassium hydrogen peroxodisulfate oxidant, the material can completely remove the active pharmaceutical ingredient naphthyl in water in a short time.Naproxen.The synthesis method proposed in the present application is simple and easy to operate, and the material performance is excellent, which can provide a new design idea for nitrogen coordination iron nanomaterial supported by carbon material, and be applied to the remediation of contaminated water.

This invention discloses a composite nanofiber membrane for immobilizing microorganisms to remediate diesel-contaminated water and its preparation method. Specifically, the composite nanofiber membrane is a thermoplastic polyurethane / nanohydroxyapatite composite nanofiber membrane, which not only possesses excellent biocompatibility and mechanical strength but is also non-toxic and harmless, offering considerable cost-effectiveness. Upon introduction into diesel-contaminated water, the composite nanofiber membrane first rapidly adsorbs diesel at the water / oil interface, preventing further diffusion and toxic effects on the aquatic environment. Subsequently, due to the additional adsorption sites provided by the nanoparticles on the membrane, a large number of free bacteria are adsorbed onto the membrane, enhancing the metabolic activity of bacterial cells and their resistance to the toxicity of stubborn compounds, while also strengthening the affinity between hydrophobic compounds and cells, thereby increasing the degradation rate of diesel hydrocarbons by microbial cells. This invention improves the remediation effect of diesel wastewater while expanding the application of composite nanofiber membranes in the field of water pollution treatment.

The utility model discloses a polluted water body remediation and purification device which comprises a supporting frame, the inner wall of the supporting frame is fixedly connected with a fixing frame at equal angles, the middle of the fixing frame is fixedly connected with a tray, the tray is used for placing aquatic green plants, the bottom of the supporting frame is provided with a gauze element, the outer wall of the supporting frame is fixedly connected with a buoy, and the buoy is fixedly connected with a water outlet of the supporting frame. The utility model relates to the technical field of water body remediation. According to the polluted water body remediation and purification device, the supporting frame and the fixing frame are used in cooperation, aquatic green plants can be conveniently placed, ecological remediation of the water body is achieved, the gauze element arranged at the bottom of the device can effectively intercept impurities in the water body, meanwhile, water and nutrients are allowed to pass through, growth of the aquatic green plants is guaranteed, and the water body remediation and purification device is convenient to use. Due to the design of the buoy, the device can float on the water surface, the position of the device and the connecting mode of the metal chain and the hook can be adjusted conveniently according to actual needs, and the adjacent supporting frames can be flexibly assembled to adapt to water body remediation projects of different scales.

The application discloses a kind of old and useless ground film rinsing sundry separation equipment, including the rinsing bin placed on ground, the inside top of the rinsing bin is provided with cleaning device, the top right side of the rinsing bin is provided with ground film crushing device, the inner wall of the rinsing bin is equidistantly distributed with cleaning spray pipe, the bottom of the rinsing bin is provided with drain, the drain is communicated with sundry separation cylinder, the inside of the sundry separation cylinder is inserted with sundry filter, the top of the sundry separation cylinder is communicated with circulating assembly, the circulating assembly is communicated with cleaning spray pipe, the left side of the rinsing bin is fixed with ground film supporting plate, adjustable wringing element is arranged on the ground film supporting plate. Contaminated water is entered into sundry separation cylinder through drain, sundry filter cartridge intercepts sundry and purifies sewage, circulating pump and conveying pipeline realize water resource circulation, filter cartridge cover is convenient for cleaning, the slope of rinsing pool inner wall guarantees that drain is smooth.

The application is the application of Spirodela and microorganisms in repairing cadmium-polluted water bodies and reducing cadmium content in cadmium-polluted paddy field rice grains. The specific steps are as follows: first, prepare Oscillospiraceae bacterial suspension, Enterobacter bacterial suspension and Pantoea bacterial suspension respectively; then mix the three kinds of bacterial suspensions in proportion to obtain a mixed bacterial suspension; then add the mixed bacterial suspension and Spirodela prepared in proportion to the cadmium-polluted water bodies to be repaired or the cadmium-polluted paddy fields to be repaired, and the Spirodela and the microorganisms form a "Spirodela-functional bacterial community" symbiotic system; the microorganisms further transport cadmium to the leaves by adsorption, transformation, leaf surface sedimentation or transpiration; finally, the Spirodela is concentrated for treatment, thereby repairing the cadmium-polluted water bodies or reducing the cadmium content in the cadmium-polluted paddy field rice grains. Through the application, the cadmium-polluted water bodies can be better repaired, and the cadmium content in the cadmium-polluted paddy field rice grains can be effectively reduced.

The invention regards a water purification reactor (1) for purifying contaminated water through mixing of said water with an ozone-comprising gas, comprising: - a reactor (1) housing (2) with a first water supply channel (14) for supplying a first portion of the contaminated water to the reactor (1) and a water discharge channel (10) for discharging purified water from the reactor (1), wherein the first water supply channel (14) is configured to discharge the first portion of the contaminated water into the reactor (1) in a first outflow direction (R); and - a mixing device (24) for mixing an ozone-comprising gas into the contaminated water. The reactor (1) further comprises a second water supply channel (22) for supplying a second portion of the contaminated water to the reactor (1), wherein the mixing device (24) is provided in the second water supply channel (22) for mixing an ozone-comprising gas into the second portion of the contaminated water, and wherein the second water supply channel (22) is configured to discharge the second portion of the contaminated water into the reactor (1) in a second outflow direction (R) that is parallel to the first outflow direction.

This invention provides an easily recyclable, floating cyano-modified carbon nitride catalytic reactor for the natural photodegradation of polluted water bodies from dyeing and printing industries, along with its preparation method and application, belonging to the field of photocatalytic water treatment. Addressing the problems of difficult recovery and low carrier separation efficiency of traditional powder photocatalysts, this invention provides a carbon nitride photocatalytic material co-modified with cyano and sodium ions. This material is loaded onto graphite felt to form a photocatalytic film, which is then wrapped and fixed by an anti-floating mesh to constitute a floating catalytic reactor. The strong electron-withdrawing effect of cyano groups and the intercalation coordination effect of sodium ions synergistically promote the separation and migration of photogenerated carriers. This reactor is self-floating and easily recyclable, and can efficiently degrade organic dye pollutants in dyeing and printing water bodies under natural light, making it suitable for the remediation of static or slow-flowing water bodies such as rivers in dyeing and printing industrial parks. This invention features a stable structure, easy recovery, and modular deployment, providing a feasible solution for the transformation of photocatalytic technology into practical dyeing and printing water treatment projects.

The present invention provides a method for treating water that can decompose organic fluorine compounds contained in the water to be treated. [Solution] A method for treating water to be treated, comprising a decomposition step of passing an electric current through water to be treated W1a containing an organofluorine compound and an electrolyte, and having an electrical conductivity of 6.0 mS / cm or higher, to decompose the organofluorine compound in the water to be treated W1a. The treatment method can be used to decompose organofluorine compounds in contaminated water W1A that is contaminated with organofluorine compounds such as perfluorooctanesulfonic acid and perfluorooctanoic acid.

Disclosed is a method for preparing porous adsorbent material (22), the method comprising providing a mixture of metakaolin (10) and calcium titanate (12, CaTiO3), mixing the mixture with alkali solution (14) and reacting to obtain alkali-activated modified material (16), providing oil comprising oleic acid (18) as a foaming agent to the alkali-activated modified material (16), and providing hydrogen peroxide (20) as a foaming agent to the alkali-activated modified material (16), and allowing the alkali-activated modified material to foam in the presence of the hydrogen peroxide to obtain porous adsorbent material (22) comprising alkali-activated titanate-modified metakaolin. Also disclosed is porous adsorbent material comprising alkali-activated titanate-modified metakaolin, a flow- through column (24) comprising the porous adsorbent material and system for treating contaminated water.

The invention relates to the field of industrial environmental protection and resource circulation, in particular to a method for co-processing perfluorinated / polyfluoroalkyl compound polluted water based on an industrial high-temperature process and an industrial symbiotic treatment system. The method comprises the following steps: taking the polluted water containing perfluoro and / or polyfluoroalkyl compounds as a water source of an original process in an industrial high-temperature production process, and introducing the polluted water into a raw material system in the industrial high-temperature production process through a liquid adding process node so as to mix the polluted water with raw materials; and feeding the raw material mixed with the polluted water into a high-temperature treatment process section of an industrial high-temperature production process for pyrolysis treatment. The PFAS polluted water is seamlessly embedded into the production process of the main product by searching and utilizing inherent process conditions of high temperature, alkali metal / alkaline earth metal and acceptable liquid which can be shared in the existing high-energy-consumption industrial process, so that the PFAS polluted water is seamlessly embedded into the production process of the main product on the premise of no negative influence on the quality of the main product. The efficient removal of PFAS pollutants and the in-situ fixation of fluorine elements are synchronously realized.

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.

The invention discloses a fault equivalent design method for an electrode at a bushing voltage-sharing ball and an insulation structure thereof, and the method comprises the following steps: building a fault equivalent model: providing an external voltage-sharing ball which is composed of a first hemisphere and a second hemisphere, forming a counter bore in the first hemisphere, welding an aluminum cylinder on the second hemisphere, and arranging a watchband contact finger, the first hemisphere and the second hemisphere can be buckled outside the sleeve voltage-sharing ball and are connected through the watchband contact fingers and the counter bores; the outer surface of the external voltage-sharing ball is coated with an epoxy resin layer so as to weaken the corona of the external voltage-sharing ball; and fault equivalent model simulation: simulating a suspended potential discharge fault by arranging a suspended electrode on the external voltage-sharing ball, or simulating a water inlet damp fault of the wire outlet device by arranging an insulating special-shaped piece and an insulating cylinder outside the external voltage-sharing ball and injecting polluted water. The device has the advantages of being typical in structure, convenient to install, low in cost, obvious in discharge characteristic and the like, and can be used for fault monitoring, analysis and judgment of ultrahigh-voltage and extra-high-voltage alternating-current and direct-current outgoing line devices.

The invention provides a combined internal regeneration nuclear power plant secondary circuit radioactive contaminated water treatment method and device. The method comprises the steps that S1, secondary circuit contaminated water is conveyed into a raw water tank; s2, conveying the waste liquid in the raw water tank to a yin-yang mixed resin bed, and purifying radionuclides in the waste liquid; s3, conveying produced water generated after the anion and cation mixed resin bed treatment to a first-stage membrane unit, and purifying radionuclides; s4, concentrated water generated after treatment of the first-stage membrane unit is conveyed to a cesium removal medium bed for impurity removal, and then the concentrated water is conveyed to a concentrated water tank; and S5, conveying the concentrated solution in the concentrated water tank to a second-stage membrane unit for cyclic concentration until the concentration of non-radioactive impurities in the concentrated solution reaches a target value, and conveying produced water generated after treatment of the second-stage membrane unit back to the raw water tank. The liquid effluent discharge standard requirement can be met through single-time treatment, and meanwhile the liquid effluent treatment device has the advantages of being small in arrangement space requirement, small in solid waste generation amount, easy to operate and maintain and the like.

The invention relates to a preparation method of a nano-composite microbial agent for efficiently removing kitchen waste grease. Pseudomonas, alcaligenes, bacillus and candida which have high grease degradation capacity are screened out from grease polluted water and kitchen waste compost, and the proportion of the pseudomonas, the alcaligenes, the bacillus and the candida is optimized to form the efficient composite flora. The preparation method comprises the following steps: synthesis of the magnetic Fe3O4 nanoparticles, surface functionalization treatment and synthesis and immobilization of the complex microbial inoculant. The stable and efficient nano-composite microbial agent is prepared by combining the functionalized nano-particles with the composite flora. Experimental verification shows that the complex microbial inoculant shows excellent stability and degradation performance in the application of removing kitchen waste grease, and can be repeatedly used through a magnetic separation technology. Compared with a traditional method, the method has the advantages that the grease removal efficiency is improved, the treatment cost is reduced, and the method has a wide application prospect.

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.

A process for removing oil and other organics especially lipids from process steams comprising lipids, brown grease, and water is disclosed and a process to remove metals and organics from leachate from landfills and other waste sites that generate contaminated water streams. The process involves adjusting pH and using electrical fields generated by a device comprising electrodes to induce gas bubbles. The gas bubbles facilitate the movement of lipids toward the surface of the solution where they may be skimmed off and recovered.

The invention discloses bacillus velezensis BZ capable of degrading petroleum hydrocarbon, the name of the strain is BZ, the classification name is bacillus velezensis, the strain is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.31766. The invention further discloses a preparation method of the bacillus velezensis BZ capable of degrading petroleum hydrocarbon. The invention discloses an application of bacillus velezensis capable of degrading petroleum hydrocarbon in degradation of petroleum hydrocarbon. The BZ strain provided by the invention can grow by taking petroleum hydrocarbon as a sole carbon source, can tolerate the low temperature of 5 DEG C and salinity with the concentration of 10%, and can quickly degrade the petroleum hydrocarbon, so that the BZ strain can be widely applied to petroleum degradation. In addition, the strain is simple in culture method and high in tolerant petroleum hydrocarbon concentration, and can be directly used for treating petroleum-polluted water and soil.

The invention relates to the technical field of heavy metal element detection, in particular to a method for detecting a lead-polluted water body, which specifically comprises the following steps: immersing a detection material into the lead-polluted water body to observe the color change of the detection material; the detection material is sulfhydrylated dedimethylcurcumin, the sulfhydrylated dedimethylcurcumin is used as an element for identifying lead ions through the principle that small molecules and metal ions are combined to form color reaction, the sulfhydrylated dedimethylcurcumin can be used for qualitative detection of lead polluted water, and the detection limit of the lead ions can reach 0.005 mg / L.

A method of treating contaminated water with organic contaminants and metal species is disclosed. The method includes agglomerating the organic contaminants and the metal species to produce solids, separating the solids, and electrochemically treating the water. Methods including directing contaminated water to an electrocoagulation cell, a solid-liquid separator, and an electrooxidation cell are also disclosed. A system for recovering metals from battery treatment water is also disclosed. The system comprises an electrocoagulation cell, a solid-liquid separator and an electrooxidation cell.

The present application belongs to the technical field of pollution remediation, and particularly relates to Bacillus atrophaeus SCAU-H1 capable of remediation of heavy metal pollution and application thereof. The present application obtains a strain of Bacillus atrophaeus SCAU-H1, which is preserved in Guangdong Microbial Culture Collection Center on December 22, 2023, with a preservation number of GDMCC NO: 64181. The strain SCAU-H1 can effectively remove As(III), As(V), Cd, Pb and Sb heavy metals in water, and particularly has excellent removal effect on As(V). Moreover, the strain can significantly reduce the effective content of heavy metals Cd and Pb in soil, and has a significant immobilization effect. Therefore, the strain SCAU-H1 can be used for remediation and treatment of heavy metal contaminated water and soil.

The disclosure provides nanoparticle-entrained multifunctional nanostructure-coated mobile carriers, and systems and methods of utilizing the mobile carriers to treat contaminated water.