20 results about "Surface water treatment" patented technology

A surface water treatment system may include a surface water source and an oxygen nanobubble device. The oxygen nanobubble device may include an air compressor configured to generate compressed air, an air dryer coupled downstream from the air compressor, and an oxygen concentrator coupled downstream from the air dryer. The oxygen nanobubble device may also include a recirculating surface water pump coupled to the surface water source. The oxygen nanobubble device may also include an oxygen nanobubble generator coupled downstream from the recirculating surface water pump and coupled to the oxygen concentrator to generate oxygen nanobubbles within the surface water.

The invention provides a nanofiltration membrane with a double-layer multi-dimensional structure and a preparation method of the nanofiltration membrane, and belongs to the technical field of nanofiltration membranes. According to the preparation method, a lithium salt-alkali composite catalyst is added into a water-phase solution, and the interfacial polymerization rate, the molecular diffusion behavior and the interfacial reaction kinetics are regulated by regulating and controlling the ionic strength, the pH dynamic balance and the oriented growth of a nanostructure, so that the high-performance polyamide nanofiltration membrane with a layered multi-dimensional structure is prepared. The high-performance polyamide nanofiltration membrane with the layered multi-dimensional structure shows an excellent separation effect in a natural surface water treatment process, particularly shows excellent performance in the aspect of removing perfluoro and polyfluoroalkyl substances, and has wide application potential.

The invention discloses a preparation method and application of a modified zeolite filter material for intensively and synchronously removing dissolved manganese and ammonia nitrogen in surface water, and aims to solve the problems that two pollutants, namely manganese and ammonia nitrogen, cannot be synchronously removed by an existing manganese removal process, and the cost of natural manganese sand is relatively high. The preparation method of the modified zeolite filter material comprises the following steps: 1, sieving clinoptilolite; 2, dipping the screened clinoptilolite in a dilute nitric acid solution; 3, putting the initial zeolite into a bivalent manganese salt solution with the concentration of 0.2-0.5 mol / L, and carrying out oscillation adsorption treatment; and 4, immersing the zeolite particles adsorbed with the divalent manganese into a mixed solution of permanganate and sodium hydroxide for adsorption reaction, and washing and drying to obtain the modified zeolite filter material. The modified zeolite filter material is used as a filter material for surface water treatment, two pollutants of manganese and ammonia nitrogen can be rapidly and effectively removed, the removal rate of manganese ions in water can reach 95%, and the removal rate of ammonia nitrogen can reach 90% or above.

A surface water treatment system may include a surface water source and an oxygen nanobubble device. The oxygen nanobubble device may include an air compressor configured to generate compressed air, an air dryer coupled downstream from the air compressor, and an oxygen concentrator coupled downstream from the air dryer. The oxygen nanobubble device may also include a recirculating surface water pump coupled to the surface water source. The oxygen nanobubble device may also include an oxygen nanobubble generator coupled downstream from the recirculating surface water pump and coupled to the oxygen concentrator to generate oxygen nanobubbles within the surface water.

The invention relates to the technical field of water treatment, in particular to a preparation method and application of a phycomycete compound. The phycomycete compound is applied to nitrogen and phosphorus removal and surface water treatment. Wherein the chlorella vulgaris and the quadruplex obliquus have strong reproductive capacity and strong adaptive capacity to environment, and absorb various elements such as carbon, nitrogen and phosphorus from water through autotrophy, heterotrophy and polyculture growth; activated sludge containing bacteroides and pseudomonas can degrade complex organic compounds, has metabolic capabilities such as heterotrophic denitrification and the like, and is beneficial to forming a co-culture system with microalgae in the initial culture stage; and nitrifying and denitrifying bacteria are compounded to consolidate the nitrogen removal environment order, so that the water body is effectively purified and the water color is good. The phycomycete compound obtained by the invention not only can be suitable for high-nitrogen simulation wastewater of a laboratory, but also can be applied to in-situ treatment of an actual river channel, has remarkable environmental benefits and has a wide application prospect.

The present invention relates to the field of heat exchange geothermal well group systems, and in particular to a three-tube convection conduction type high-efficiency heat exchange geothermal well group system, comprising a heat exchange pumping well system, a heat exchange recharge well system and a surface water treatment system. The heat exchange pumping well system comprises a softened water closed heat exchange system and a geothermal water extraction system, the heat exchange recharge well system comprises a softened water closed heat exchange system and a geothermal water recharge system, and the surface water treatment system is a geothermal water treatment device. The geothermal water extraction system, the surface water treatment system and the recharge well system together constitute a geothermal water closed circulation system. Since the extraction of geothermal water is only for the purpose of establishing a heat convection mechanism, the extraction volume is small, and 100% raw water recharge is achieved, which will not cause the groundwater level to drop. The present invention utilizes the basic principles of heat conduction and heat convection to reduce the energy damage caused by excessive groundwater exploitation and the heat exchange energy loss, and has the advantages of energy saving and environmental protection, high heat exchange efficiency, and heat extraction without water extraction.

The invention provides a methodology for treating perfluoroalkyl and polyfluoroalkyl substances, collectively referred to as PFAS, in soils, groundwater, surface water and within other materials. PFAS exhibit a broad range of chemical properties which necessitates the application of a versatile treatment technology. The invention utilises a modified inorgano-organoclay or modified inorgano-organoclays for the treatment of PFAS which provide(s) this essential capability and flexibility. The composition of the modified inorgano-organoclay / modified inorgano-organoclays can be varied accordingly enabling the clays to exhibit varying degrees of hydrophobicity / hydrophilicity. PFAS are sorbed into the modified inorganoclay / modified inorgano- organoclays and chemically immobilised. The clays can be used in combination with cementitious materials to provide an advanced stabilisation process for the treatment of PFAS contamination in soils / other materials or used in isolation for groundwater / surface water treatment. The objective is to reduce the environmental impact of PFAS pollutants.

The invention is applicable to the technical field of surface water processing and treatment, and provides comprehensive surface water treatment equipment which comprises a recycling barrel and a treatment pond, the three filter screens are arranged in parallel to the inner position of the recycling barrel in an inclined mode, and cleaning boxes are arranged on the sides, close to the filter screens, with the higher inclined gradient; the electric push rods are arranged in the cleaning boxes; the bearing blocks and the cleaning brooms are arranged at the telescopic ends of the electric push rods, and slag discharging openings are communicated with the sides, close to the filter screens, with the lower inclined gradient; according to the invention, impurities and suspended matters can be effectively removed from surface water in a preliminary filtering stage, chemical reaction and physical precipitation processes are accelerated through precise agent addition and full mixing, harmful substances such as microorganisms, organic matters and heavy metal ions in water are further removed through subsequent multi-stage purification treatment, and in addition, the water quality is improved. The efficient gas treatment system effectively avoids secondary pollution caused by harmful gas and peculiar smell generated in the treatment process.

A polylysine modified biochar and its preparation and application belong to the field of urban surface water treatment technology. The present invention is to solve the microbial contamination and potential public health risks caused by the presence of multiple pathogenic pathogens in existing surface water bodies. The method of the present invention: Step 1, disperse the carbon-rich solid in a Tris-HCl buffer solution, add ε-polylysine and dopamine hydrochloride, use NaOH solution to adjust the pH value of the solution to alkaline, stir the reaction at room temperature and ensure that there is sufficient dissolved oxygen in the solution; Step 2, after the reaction of step 1 is completed, vacuum filter, wash the collected solid with ultrapure water 5 to 8 times, dry at 50°C to 70°C and then sieve. The modified biochar prepared by the present invention can achieve efficient adsorption and removal of bacteria and viruses in water bodies in a short time, shows good removal effect and stability, is non-toxic and harmless to aquatic organisms and the ecological environment, and provides a basis for the design of environmentally friendly pathogen adsorption materials.

The present application relates to a kind of insoluble lignin-chitosan flocculants and its preparation method and application, belong to water treatment technical field.The biomass flocculant is prepared by modifying basic lignin and chitosan with quaternary ammonium reagent CHPTAC under specific pH, temperature, with high flocculation activity, environmental friendly and biodegradable characteristics.When used with polyaluminum chloride (PAC), it can achieve efficient turbidity removal (turbidity reduced to below 0.465 NTU) and significantly reduce residual aluminum content.The present application provides an optimized preparation process, compounding method and wide application, suitable for industrial wastewater, municipal sewage and surface water treatment.Experiments show that the yield of the flocculant under optimal conditions is 75%, the turbidity removal rate of the compound treatment is more than 98%, the residual aluminum is reduced by more than 48%, and it has economy and practicability.

The present invention discloses a novel high-turbidity surface water treatment system, which belongs to the field of water treatment technology. The system comprises an equipment room, a clear water tank, a membrane frame tank and a membrane sedimentation channel. One side of the membrane sedimentation channel is connected to a water source, and the bottom of the membrane sedimentation channel is in a 5° slope. A membrane frame tank and an equipment room are arranged on the other side of the membrane sedimentation channel. The membrane sedimentation channel and the clear water tank are connected through a pipeline. Gate valves are arranged at both ends of the membrane sedimentation channel, a retaining wall is arranged on one side of a gate valve, and a mud flushing hole is opened at the bottom of the retaining wall. A high-flux membrane is arranged inside the membrane sedimentation channel through a membrane frame, and gravity flow is driven as the main energy to operate at ultra-low pressure and high flux, thereby effectively reducing water production energy consumption; the chemical dosing process is omitted and the physical process is simplified, thereby avoiding secondary pollution caused by chemical agents; and there is a higher concentration of suspended sediment in the membrane sedimentation channel 3, which has a good removal effect on micro-polluted organic matter; the equipment integration is significantly improved, unmanned operation is achieved and labor costs are reduced.

The invention discloses a lake and reservoir desilting and sand washing integrated treatment process, and relates to the technical field of lake and reservoir environmental governance and resource recovery, in particular to the lake and reservoir desilting and sand washing integrated treatment process. Cleaning and crushing are carried out in a mode of combining machinery with hydraulic power, and collected objects are conveyed to a sand washing system through a closed conveying channel. According to the sand washing system, solid-liquid preliminary separation is carried out through a slurry sedimentation tank, and then gravel aggregate and building soil with different particle sizes are effectively separated out through the procedures of multi-stage screening, hydraulic cyclone classification and the like. And the separated sand is dehydrated and graded to realize resource recycling. And residual water separated by the system is guided into a surface water treatment system, and is recycled or discharged after reaching the standard after being subjected to multi-stage treatment. A real-time monitoring link is arranged in the technological process, pollutants are controlled in the whole process, and the whole-process integrated operation of desilting, sand washing, water treatment and material recycling is achieved.

The invention relates to the field of raw water pump station water treatment, in particular to a still water surface water treatment operation method for a drinking water raw water pump station forebay, which comprises the following steps: establishing a still water surface water treatment circulating system of the drinking water raw water pump station forebay; according to the still water surface water treatment circulating system, a still water surface water treatment operation result of a drinking water raw pump station forebay is obtained, parameter adjustability, automatic program switching and manual intervention reduction are achieved through a PLC control system, the circulating water flow direction and the salvage path can be adjusted according to the dead water area distribution characteristics of different pump station forebays, and the water treatment effect of the drinking water raw pump station forebay is improved. The application range is wide; the forebay water quality is obviously improved.

The application provides a surface water efficient purification tank, which comprises a treatment tank with a water inlet pipe externally installed, a drain pipe is installed at the bottom of the treatment tank, a surface water treatment cavity is formed in the treatment tank, a dosing and stirring assembly is installed in the surface water treatment cavity, the dosing and stirring assembly comprises a rotating part, a positioning rod and a water filtering part, the rotating part is rotationally connected to the outside of the positioning rod, the water filtering part is rotationally connected to the lower end surface of the rotating part, two groups of feeding pipes are fixedly connected to the upper end surface of the rotating part, the rotating part comprises a transmission rod and a wall cleaning ring, the transmission rod is fixedly connected to the inner side of the wall cleaning ring at both ends, a positioning groove is formed in the upper end surface of the transmission rod, two groups of guide columns are fixedly connected to the inner wall of the positioning groove, a plurality of groups of liquid discharge grooves are formed in the two sides of the transmission rod, and adjusting plates are rotationally connected in the liquid discharge grooves, the application has high surface water treatment efficiency, and dirt cannot accumulate in the water treatment tank.

This invention discloses a complex surface water treatment system and a water treatment and backwash water recycling process. Through a collaborative design of a multi-stage water treatment process ("multi-media → ultrafiltration → dual-stage reverse osmosis → EDI") and PLC intelligent linkage control, this invention achieves both stable water quality assurance and the dual benefits of water conservation, high efficiency, cost reduction, and emission reduction. The PLC monitors the water quality and pressure differential parameters of each treatment stage in real time, and combined with automatic backwashing and chemical cleaning mechanisms, effectively avoids water quality fluctuations caused by filter / reverse osmosis membrane clogging, stably producing high-purity water suitable for precision water use scenarios, and ensuring the long-term operational stability of the system. Simultaneously, PLC linkage enables graded reuse of water sources. Backwashing prioritizes the use of reverse osmosis concentrate and ultrafiltration permeate to replace fresh raw water, secondary reverse osmosis concentrate is returned to the front end for reuse, and redundant water is used for low-quality water use stages, increasing the system's water utilization rate to over 80%, reducing fresh water consumption by 30%, and significantly reducing water waste.

The application discloses a mine water treatment and mine water energy utilization method and relates to the field of mineral resource exploitation. The method comprises the following steps: constructing an energy hole in a coal mine tunnel; performing high-pressure grouting hole sealing on the energy hole, and installing a high-pressure blowout preventer and a pressure meter on the energy hole; installing a hydraulic power generation turbine set on the rear side of the high-pressure blowout preventer, changing the water flow direction, changing the water flow pressure into angular momentum, and converting the angular momentum into electric energy; constructing an underground water warehouse, guiding the water body discharged through a sealed water guide pipeline into the underground water warehouse; placing a horizontal pump near the underground water warehouse, pumping the water in the underground water warehouse out of the ground through the horizontal pump, and performing physical impurity removal and scale removal on the water in a surface water treatment station; the water after the scale removal is introduced into a quality water engineering or is poured into a surface reservoir; constructing an ordovician limestone well, pumping the water in the surface reservoir out of the ground through a water pump, and pouring the water back into a mining layer after sand removal; and the method can fully utilize mine water energy under the premise of ensuring construction safety and improves economic benefits.

The application discloses a preparation method of modified zeolite filter material for intensively removing dissolved manganese and ammonia nitrogen in surface water and application of the modified zeolite filter material, and aims at solving the problems that existing manganese removal processes cannot simultaneously remove manganese and ammonia nitrogen, and the cost of natural manganese sand is relatively high. The preparation method of the modified zeolite filter material comprises the following steps: firstly, sieving clinoptilolite; secondly, immersing the sieved clinoptilolite in a dilute nitric acid solution; thirdly, placing the initial zeolite in a divalent manganese salt solution with a concentration of 0.2-0.5 mol / L to perform oscillation adsorption treatment; and fourthly, immersing the zeolite particles with adsorbed divalent manganese in a mixed solution of permanganate and sodium hydroxide to perform adsorption reaction, and then washing and drying to obtain the modified zeolite filter material. The modified zeolite filter material is used as filter material for surface water treatment, can quickly and effectively remove the two pollutants of manganese and ammonia nitrogen, and the removal rate of manganese ions in water can reach 95%, and the removal rate of ammonia nitrogen can reach more than 90%.

The utility model relates to an assembled fan-shaped grid flocculation monomer device. The utility model aims to solve the problems that the interior of a flocculation area of traditional water purification equipment is difficult to clean and maintain, or the flocculation area cannot be adjusted to the optimal water purification efficiency due to the change of water quality and raw water quantity. The assembly type fan-shaped grid flocculation monomer device comprises a cylindrical frame, a plurality of fan-shaped grid plates, a rubber plate and a pressing plate, the fan-shaped grid plates are installed in the frame and arranged at intervals in the vertical direction, the interior of the frame is evenly divided into three flocculation areas through vertical partition walls, and the grid plates in each area are fixedly welded to a supporting round pipe from bottom to top. The first flocculation zone, the second flocculation zone and the third flocculation zone are bolted and compressed through bolt fasteners from bottom to top, the multiple layers of grid plates vertically arranged in each zone are supported by three round pipes, and raw water flows into the first flocculation zone, flows through the second flocculation zone and the third flocculation zone through water passing holes in partition walls and finally flows out of the device from a drainage pipeline on the lower portion of the device. The device is suitable for surface water treatment. Compared with the prior art, the water purifier has better water purification effect and economical efficiency.

The utility model relates to the technical field of sewage aeration, and discloses a surface water treatment device using air and ozone dual aeration, including a river bank and a river surface, wherein a conveying device is arranged on the river bank. By first starting a blower, opening valve one, closing valve two and valve three, air enters the blower, flows through a pipeline to a conveying air pipe, and finally flows into an intake pipe to force air into the sewage from both ends for aeration, by closing valve one, opening valve two and valve three, starting an ozone generator, using high-voltage ionization (or chemical or photochemical reaction) to decompose and polymerize part of the oxygen in the air into ozone, so that the ozone gas flows along the pipeline and the conveying air pipe to the intake pipe, and finally, the ozone gas is forced into the sewage from both ends for aeration, and the dual aeration method of air and ozone can greatly improve the efficiency of treating various water bodies such as rivers and surface water.

The present invention provides a method for assembling a photobioreactor-type intelligent sterilization fiber module and an application of a device. A photobioreactor-type intelligent sterilization fiber module includes a reactor glass main body, a housing surrounding the main body, and a light control module for controlling the rotation of the reactor; the reactor main body is composed of a plurality of glass plates and fiber diaphragms, and is divided into a heat insulation area and an algae cultivation area. Inlet and outlet water pipes are arranged in the algae cultivation area. A transmission structure controlled by the light control module is connected to the housing. An air outlet is arranged on the glass plate in the algae cultivation area, and a purification module is installed on the air outlet. A photoreactor designed by the present invention can promote the growth of microalgae. The assembly method of the device can be used for various water qualities, such as open-pit mine water, surface water treatment, and algae resource utilization processes, and can also be applied to the removal of pathogenic bioaerosols and organic malodorous gases in the air, having the effect of improving air and water quality, being suitable for various indoor and outdoor scenarios, being economically feasible, and having broad prospects.