40 results about "Contaminated water" patented technology

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.

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 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.

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.

This invention relates to a carboxymethyl cellulose-modified nanomaterial of zero-valent iron, its preparation method, and its application in the remediation of trichloroethylene-contaminated water or groundwater. The material is prepared by mixing sodium carboxymethyl cellulose with a water-soluble ferrous salt in a deoxygenated aqueous phase, followed by reduction with an oxygen-free sodium borohydride aqueous solution under nitrogen protection. The sodium carboxymethyl cellulose forms a coating layer on the surface of the zero-valent iron through carboxylate groups, distributing the zero-valent iron particles on the carboxymethyl cellulose framework or the coating layer surface. Scanning electron microscopy analysis shows that the zero-valent iron particles are mainly distributed in the range of 80-150 nm; the zeta potential measured in anhydrous ethanol dispersion is -47 mV. The material is added at 0.5-5.0 g / L to trichloroethylene-contaminated water or groundwater and reacted under sealed, light-protected conditions at pH 6.0-8.0 and a temperature of 20-35°C for the reduction and dechlorination treatment of trichloroethylene.

This utility model discloses a water feeding device for squab farming, relating to the technical field of water feeding devices. By incorporating a filtration mechanism and a support component, the support component allows the water feeding device to be positioned away from the ground, while the filtration mechanism continuously filters the water inside the feeding bowl, ensuring its cleanliness. This solves the problem of traditional squab water feeding methods, which often use simple troughs or bowls placed directly on the floor of the pigeon coop or in fixed locations. However, this primitive water feeding method has many drawbacks. Firstly, the water quality is easily polluted. During the drinking process, squabs' feathers, droppings, and feed residue easily fall into the water, causing rapid water deterioration and the proliferation of bacteria and microorganisms. Squabs drinking contaminated water are prone to various diseases, such as intestinal and respiratory infections, which not only affect their growth and development but also increase the farmer's medication costs and farming risks, and may even lead to squab death and economic losses.

A mobile water treatment system comprises a water treatment unit consisting of a portable housing, an inlet and an outlet nozzle / branch pipe for intake of contaminated water and discharge of purified water, an electric pump connected to at least one pre-treatment filter and to a power supply unit configured to be connectable to a voltage source, and a filtration assembly comprising a coarse filtration filter block, a reverse osmosis membrane, and a filtration block containing an ionizing composite. The system additionally comprises an autonomous power supply device. The water treatment unit further comprises a gas-trap cartridge, a tourmaline cartridge, and a bioactivator filter containing thermally treated zeolite. A magnetic structuring device is arranged at the outlet of the purified water. The coarse filtration filter block consists of at least two coarse filters and an activated carbon filter. The pre-treatment filter is made with a washable mesh and contains thermally treated zeolite.

The present application belongs to the field of pesticide pollution remediation, and provides a preparation method of modified biochar, comprising the following steps: (1) preparing an alkali solution with a certain volume; (2) weighing plant starch and stirring and dispersing the starch in the alkali solution to obtain a starch dispersion liquid; (3) mixing a crosslinking agent with the remaining alkali solution, and then adding the mixture into the starch dispersion liquid dropwise, and stirring and reacting under constant temperature to obtain a reaction liquid; (4) adding soluble iron salt and alkaline potassium salt into the reaction liquid in sequence, and continuing to stir and react to obtain a mixture; (5) drying the obtained mixture to form a solid; and (6) placing the dried solid into a tube furnace, and pyrolyzing and carbonizing the solid under a nitrogen atmosphere at high temperature, and then performing acid pickling and drying to obtain starch-based modified biochar. The starch-based modified biochar prepared through chemical crosslinking modification and metal salt loading synergistic modification is suitable for remediation of long-acting herbicide contaminated water bodies and soil, and also has the effect of improving soil acidity.

This utility model relates to the field of sewage and rainwater diversion technology, and discloses an automatic switching device for separating clean and sewage water. The device includes a main body comprising a clean water tank and a sewage tank connected by an overflow outlet. An inlet pipe, cooperating with the overflow outlet, is located on the side of the sewage tank away from the clean water tank. A detachable screen plate is located inside the sewage tank near the overflow outlet. A protrusion is located at the bottom of the sewage tank, forming a storage space for impurities between the protrusion and the sewage tank. A drain pipe extending to the bottom of the sewage tank is located on the protrusion, and a drain pipe is located at the bottom of the clean water tank. A switching device, cooperating with the inlet pipe and the overflow outlet and capable of controlling the flow of the drain pipe, is located on the protrusion. The advantage of this utility model compared to existing technologies is that it can automatically separate sewage and rainwater used for washing the ground.

The invention relates to a mobile water protection system for treating contaminated water, comprising a wastewater basin into which contaminated water can be introduced, a cleaning device designed to separate contaminated water in the wastewater basin into clear water and dirt, a neutralization device comprising a gassing device, a pressure vessel connection 8a for connecting a pressure vessel 9a containing pressurized gas, and a gas line 10a through which pressurized gas can be conveyed from the pressure vessel connection 8a to the gassing device, and configured to adjust the pH value of the clear water to a specific value by gassing the clear water using the gassing device.

Photocatalytic system for the treatment of contaminated water comprising: - a channel piece (1) comprising: a channel (2) with a U-shaped section comprising an inlet slot (6) and an outlet slot (7), a first wall (3) at a first end of the channel (2), housing a water inlet (5) communicating with the inlet slot (6), and a second wall (4) at a second end of the channel (2) opposite the first end with a water outlet (8) communicating with the outlet slot (7); - a base piece (13) which, in turn, comprises: a base (14) comprising a plurality of steps (15), and two columns (16) which, in turn, comprise two housings (17) at their ends, such that each housing (17) is configured so that the channel piece (2) rests on the columns (16), with free rotation capability, by means of two studs (18) located close to the first wall (3) of the channel piece (2); - two articulated pieces (19), one on each side of the channel (2), where each articulated piece (19) comprises: a hole (26) at a first end, configured to fix each articulated piece (19) with rotation capability around a stud (20) located on each side of the channel (2), a second end (24) with a section different from the section of the rest of the articulated piece (19); - a support piece (21) comprising: a projection (22) configured to be positioned on the various steps (15) of the base (14), and two linear housings (23), wherein said linear housings (23) are inclined and configured to receive the ends (24) of the articulated pieces (19) with the capacity for free movement along the linear housings (23); - an LED lighting cover (11) located on the channel (2).

The utility model discloses a kind of for heavy metal pollution water source analyzers, including heavy metal analyzer main part;Auxiliary moving structure, the auxiliary moving structure includes support, the support is fixed in the central position of heavy metal analyzer main part both sides lower part symmetry, and support inside is equipped with movable frame, the middle portion of movable frame one end is rotatably connected with moving wheel, and movable frame outside is threaded with connecting frame, the lower end of connecting frame inside is equipped with bracket;Still including initiative limiting structure, the initiative limiting structure includes movable slot, the movable slot is equidistant in the limiting mouth inner wall, and the inner end of movable slot inner wall is fixed with movable spring, the one end of movable spring is fixed with limiting column.The utility model can be applicable to the limited use of different size test tube, and through guide ball, test tube can be conveniently taken and placed, time and energy are saved, convenient to use.

The present application relates to the technical field of environmental functional materials, and particularly relates to a preparation method of iron-manganese bimetallic co-modified biochar, which comprises the following steps: mixing biomass powder, an iron source, a manganese source and a grinding aid, and realizing solid phase oxidation-reduction reaction and mechanical intercalation of iron-manganese precursors through mechanical-chemical ball milling; then performing segmented limited pyrolysis to construct a core-shell heterojunction structure of Fe / Mn@iron-manganese oxide@C; and finally performing acid washing activation to obtain the product. The present application realizes the nanoscale uniform dispersion of iron-manganese bimetallic in the biochar matrix and the strong chemical bonding anchoring by using the mechanical-chemical auxiliary-in-situ oxidation-reduction co-precipitation technology, and solves the problems of easy agglomeration of metal particles, weak binding force and poor synergy in the traditional modification method. The obtained material has excellent adsorption performance and cycle stability for As(III) and other heavy metals, and has magnetism for facilitating recovery, is suitable for deep treatment of heavy metal contaminated water and soil remediation, and has good industrial application prospect.

The present application relates to a kind of low concentration nitrate removal and conversion method based on functionalized flow electrode slurry, comprising the following steps: in low concentration nitrate contaminated water body, using functionalized flow electrode slurry, carry out capacitive deionization processing under the first voltage applied, to realize the selective adsorption and concentration of nitrate, functionalized flow electrode slurry includes functional group modification and has electrocatalytic activity carbon material;The functionalized flow electrode slurry that nitrate has been concentrated, carry out electrochemical reduction reaction under the second voltage applied, reduce the nitrate adsorbed to ammonia, to realize the removal and resource of nitrate.The present application is designed by two-step method process, and uses functionalized flow electrode slurry, effectively solves the two big problems of low concentration nitrate deep removal and resource recycling.

A novel method of synthesizing polyacrylic beads, comprising the steps of suspending a monomer and a cross-linking agent in a solution, heating the solution in a microwave reactor, cooling the solution, and collecting the polyacrylic beads. The polyacrylic beads can be used in to remove solutes from various solutions, including blood, porcine blood, dialysate, serum, contaminated water, wastewater, and combinations thereof.

The present invention is directed to systems and methods for removing trichloroethane (TCA), trichloroethene (TCE), and 1,4-dioxane (1,4-D) from contaminated water and wastewater. The system and methods relying on catalyst reduction of TCA and TCE, and the reduced products are degraded by microorganisms that are capable of biodegrading ethane and 1,4-D. In certain embodiments, a catalyst film comprises precious nanoparticles with diameters of 5-40 nm and a biofilm comprising microorganisms that are capable of degrading ethane and 1,4-D are used in a dual-reactor system to remove TCA, TCE, and 1,4-D from contaminated water and wastewater.

Pretreatments are employed to improve the destruction of perfluorinated alkyl substances (PFAS). Organic acids, such as acetic acid, are combined with PFAS contaminated water that also contains Ca and / or Mg. The acidified solution is then combined with sodium fluoride to precipitate Ca and / or Mg fluoride solids which are separated from the solution. The resulting composition can then be destroyed by supercritical water oxidation (SCWO). By removing alkaline earth ions, the process is more less prone to disruptions and can accomplish even great degree of PFAS destruction.

Proposed is a reactor cooling system for cooling down a reactor damaged by a disaster accident and a reactor cooling method using same using contaminated water generated at a nuclear reactor as a cooling water source for cooling the nuclear reactor after the accident, thereby maximally suppressing discharge of the contaminated water into the sea. To this end, the reactor cooling system prosed above includes a nuclear power generation facility, a seawater storage tank, a seawater inflow flow path for introducing the seawater into the seawater storage tank and a seawater discharge flow path for discharging the seawater from the seawater storage tank to the sea, connected to one end and another end of the seawater storage tank, respectively, a heat exchanger installed in a water storage space of the seawater storage tank, a contaminated water supply flow path, and a contaminated water discharge flow path.

The application discloses an adsorbent for efficiently removing cadmium and arsenic, and a preparation method and application thereof. The biomass raw material pyrolysis product with high exchangeable calcium content is impregnated with a K2FeO4 solution, and after heating and stirring until stable, the stable product is dried and ozone-activated to obtain the adsorbent for efficiently removing cadmium and arsenic. The adsorbent for efficiently removing cadmium and arsenic has high ash content, high alkalinity and many surface active sites, and can effectively adsorb and fix heavy metals in a heavy metal contaminated water body. The adsorbent can simultaneously effectively adsorb Cd(II) and As(III) in the water body. In a composite contaminated water body, the adsorption amount of Cd(II) and As(III) can reach 426.93 mg / g and 78.55 mg / g respectively, and the adsorbent can simultaneously effectively treat various heavy metal contaminated water bodies, and has a wide application prospect in heavy metal pollution treatment.

The application discloses a kind of high fluorine pollution water detection equipment and method, it is related to sewage detection technical field, comprising: carrier;Hoist, it is set on the carrier, and have a free end;First liquid storage tank, it is connected to the free end, and has liquid collection port, valve is installed on the liquid collection port;Positioning assembly, it is connected below the first liquid storage tank, for detecting and positioning mud-water interface;Interface liquid acquisition component, it is set on the side of the first liquid storage tank, for after the positioning assembly is positioned to mud-water interface, can effectively capture the sewage at interface, avoids the leakage phenomenon caused by traditional suspension sampling.

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

The application belongs to the technical field of hazardous waste incineration treatment, and particularly discloses a high-efficiency dry-method slag discharging and cooling structure, which comprises a main driving shaft, a main driving component, a transmission component, a driven shaft, a driven component, a group of bearings, a group of end covers, an upper shell assembly, a lower shell assembly, a rotor body assembly and the like.The application has the beneficial effects that: the wind cooling mode is used to replace the traditional water cooling to cool the hazardous waste incineration high-temperature ash slag, the ash slag after the traditional water cooling and slag removal has a water content of more than 40%, and the new dry-method slag removal mode is to dry the ash slag after the incineration and the wind cooling, thereby saving the water resource, avoiding the generation of a large amount of contaminated water, reducing the storage, transportation and disposal costs of the secondary waste, reducing the subsequent treatment and transportation costs of the contaminated water, greatly reducing the environmental pollution caused by the wet-method slag removal process, realizing heat recovery, replacing part of the fuel of the second combustion chamber, thereby reducing the fuel usage, and having significant economic benefits.

An improved method for separating PFAS substances from contaminated water and polar solvent systems using alkyl quaternary ammonium compound comprising of coagulation, flocculation, or phase separatio

A 3-D printed small-footprint cyclone separator apparatus for separating similar-phase substances such as oil from contaminated water or separating dual-phase substances from a mixture containing both such as separating solids from a fluid mixture containing both solids and liquids. The cyclone separator apparatus including cyclone liners thereof is entirely 3D printed as a single integral unitary body preferentially from a metal alloy powder, and importantly lacks any encapsulating circumferential vessel with end plates of the prior art used in the past for maintaining individual cyclone liners in fixed position relative to each other, thereby saving weight and cost. Abrasion-resistant coatings or anodizations may be, after 3D printing, applied to the interior of each of the cyclone liners of the separator apparatus to improve wear resistance to abrasive materials and thereby improve the operative life of such cyclone liners and thus the cyclone separator apparatus.