68results about How to "Improve water quality indicators" patented technology

The invention pertains to the technical field of environment protection, which provides a method for treating black-odor rivers and lakes with microbiological preparations and comprises the following steps of: (1) pre-treatment of the rivers or the lakes; (2) biofilm colonization treatment; (3) microorganism augmentation treatment by direct application; (4) water ecology recovery and oxidation reduction of reductive sludge at the bottom; and (5) protection and further improvement of water environment. The method for treating black-odor rivers and lakes with microbiological preparations employs a plurality of microbiological preparations to treat the black-odor rivers and lakes, realizes the decomposition of organic pollutants in the water body, improves water ecological balance, and oxidizes, and reduces the reductive sludge at the bottoms of the rivers and lakes.

The invention provides an ecological restoring method of a river water body, comprising the following steps: (1) detecting pollution indexes of a river water body; (2) throwing composite microbial agents into a water body according to 5ppm to 9ppm; (3) transferring, translating and degrading matters in the river water body by the composite microbial agents; (4) throwing and/or planting water plants into a river; (5) detecting the pollution indexes of the river water body; and (6) repeating the steps from (2) to (5) from 15 days to 30 days until the river water body conforms to requirements. Each composite microbial agent comprises the components by weight percent: 5 to 10 photosynthetic bacteria, 10 to 15 bacillus subtilis, 5 to 10 nitrifying bacteria, 2 to 5 microzyme, 15 to 20 lactobacillus, 10 to 30 aspergillus, 10 to 30 acetobacter and 20 to 30 actinomyces. The ecological restoring method of a river water body aims at a river water body which carries out eutrophication treatment, leads the river water body to restore the bio-diversity of the river water body, radically restores ecology and has durable effect, low cost and simple use.

The invention discloses a recycling treatment system of high-salinity high-organic-matter chemical wastewater. The recycling treatment system comprises an electrocatalytic oxidation device, a halotolerant bacteria biochemical system, an MBR aerobic device, an electroosmosis unit, an ultrafilter and an RO unit, the halotolerant bacteria biochemical system comprises a halotolerant bacteria anaerobic device, a halotolerant bacteria aerobic device and a halotolerant biological aerated filter. The invention further discloses a treatment method of the high-salinity high-organic-matter chemical wastewater. By the recycling treatment system and the treatment method, the problem of recycling treatment of the high-salinity high-organic-matter chemical wastewater is solved effectively, recycling rate of water and salt is high, no wastewater is discharged basically, no solid waste is generated, generated water is high in quality, generated salt is high in purity, and water resources and salt in the high-salinity high-organic-matter chemical wastewater are recycled to greatest extent; zero discharging of wastewater in the process of enterprise production is realized, and the recycling treatment system and the treatment method have important environment benefit.

The invention relates to a technique for integrated two-stage strengthened air-flotation separation of dense algae slurry. The technique comprises that: collected dense algae slurry first enters a first-stage air-flotation tank where algae and high-density micro-bubbles have contact with and adhere to each other so as to separate algae and water and remove about 50 to 80 percent of algae, and then water enters a second-stage strengthening air-flotation tank, is added with an appropriate amount of flocculant, and then is subjected to air-flotation treatment again so as to remove the remaining algae and other suspended substances in the water. The invention not only applies to the disposal of dense algae slurry, but also can be used to treat algae-rich water low in algae content. The invention has the advantages of effectively removing blue-green algae in water, transferring nitrogen, phosphorus and other nutrient loads in water, purifying water, preventing the explosion of blue-green algae and providing an effective method and a device for controlling the pollution of lakes and reservoirs.

The invention discloses a method for removing the toxicity of tail water of fine chemical biochemical treatment, belonging to the field of sewage treatment methods. The method comprises the following treatment steps: (a) carrying out catalytic ozonation, specifically, treating sewage in a catalytic ozonation tower which is internally filled with an iron-aluminum catalyst, wherein the iron-aluminum catalyst is prepared from the following effective components: beta-iron oxyhydroxide and aluminum oxide; (b) absorbing, specifically, carrying out further treatment on wastewater, subjected to treatment in the step (a), by using an absorption filter filled with ceramsites and magnetic resin, wherein the mass ratio of the beta-iron oxyhydroxide to the aluminum oxide in the iron-aluminum catalyst is equal to (15-20) to (80-85), and the volume ratio of the ceramsites to the magnetic resin is equal to (2-3) to (3-5). The method provided by the invention is simple to operate and low in cost, and not only can realize the non-toxic emission of the tail water, but also can improve the comprehensive index of water quality.

The invention discloses an adjustable sewage filtering apparatus for an oil field, relating to the field of water treatment of environmental engineering, in particular to sewage treatment equipment applied to an oil field, comprising a tank body (2) provided with a water inlet (7) and a water outlet (3) and a hydraulic control mechanism (1) arranged on the tank body (2), wherein the tank body (2) is internally provided with a water distribution device (6) and a water collection device (4); a press plate (10) is arranged between the water distribution device (6) and the water collection device (4); a fiber bundle filter material (5) is placed between the press plate (10) and the water distribution device (6); and a piston rod of the hydraulic control mechanism (1) is connected with the press plate (10). A drain outlet (11) is arranged at the bottom of the tank body (2). The filter precision of the filter material is adjusted by connecting the hydraulic control mechanism with the filter material, thereby achieving the aim that the water quality reaches the standard in such a way that the filter precision is controlled according to the press degree of the filter material.

A waste-water treatment and recovery for power plant is carried out by classification treating for waste water, gathering it into water-collecting pool, adding into medicine, adjusting pH value, entering the waste water into micro-filter membrane filtering system from micro-coagulator, flowing micro-filtered water into medium water tank, delivering it into safety filter by lifting pump, inverse penetration treating by high-pressure pump, flowing concentrated water into chemical neutralization pool and flowing fresh water into recovering pipe net of factory. Its advantages include low cost, better water quality, safety and stability and high recovery efficiency.

The invention discloses an ecological system for governing a beheaded creek. The system comprises a flow making circulating device, an ecological floating bed and plant oxidizing regions. The flow making circulating device is used for extracting and filtering and discharging water in a trunk watercourse into the beheaded creek, the ecological floating bed comprises an HDPE floating bed carrier and stain-resistant evergreen aquatic plants located in the HDPE floating bed carrier, and storm sewage ports along the beheaded creek and muddy relatively loose regions of bank slopes are plant oxidizing regions. According to the ecological system for governing the beheaded creek disclosed by the invention, the system becomes an organic ecological system by reasonably configuring the flow making circulating device, a functional ecological floating island and the plant oxidizing regions, so that the water flowability of the beheaded creek can be improved, water quality indexes of the water body are improved by three-dimensional and multi-layered biological means, and sewage entering into the beheaded creek can be governed from the source. The ecological system for governing the beheaded creek disclosed by the invention is worth being popularized.

The invention discloses an intelligent water affair system for an offshore oilfield. The system comprises platforms of the offshore oilfield, FPSO, a drilling ship and a water supply subsystem, a sewage treatment subsystem, a chemical agent subsystem, reinjection water, an injection-production subsystem, a sensing system, a transmission system, a data center, an intelligent control system and a service system of a crude oil terminal treatment plant. The invention relates to the technical field of offshore oilfield water treatment. A three-dimensional information management platform is established for water supply, sewage treatment, chemical agents, reinjection water and the like of the offshore oilfield in a big data and artificial intelligence environment, so that the water supply efficiency and the water quality safety are guaranteed, the water quality indexes and the treatment efficiency of sewage and reinjection water are improved, and the recovery ratio and the economic benefit ofthe offshore oil field are improved.

The invention discloses a composite artificial aquatic plant and ecological ball device and use method. The device comprises artificial aquatic plants, ecological balls, fillers, fixing ropes and fixing piles. The device is simple to install, can achieve the functions of improving the water quality, reducing the total amount of black mud and increasing the biodiversity of a water body by designingdifferent types, sizes and dosages of artificial aquatic plants, ecological balls and fillers, and is suitable for black and odorous rivers and lakes, micro-polluted rivers and lakes and culture ponds where submerged plants are difficult to plant.

The invention discloses a preparation method for a composite-type lactobacillus microecological preparation, and belongs to the field of lactobacillus fementation. The preparation method comprises the following steps of: separating lactobacillus strains by taking bred animals, culture water body and bottom sediment as bacterial sources; then purifying the separated lactobacillus strains to selectively breed 2-5 lactobacillus strains with large calcium-dissolving rings, fast growth speed and strong activity; then carrying out enlarging culture on the lactobacillus strains which are purified and selectively bred, and preparing composite seed solution; and finally, inoculating and fermenting the composite seed solution to obtain the composite-type lactobacillus microecological preparation. Compared with the prior art, the preparation method disclosed by the invention has the beneficial effects of simple culture equipment and operation, and stable storage time compared with a single strain fermentation water agent.

The invention provides a method for keeping boat stored drinking water fresh. The method comprises the following steps: pumping boat stored drinking water out of a water cabin; filtering the pumped boat stored drinking water by a cartridge filter; then feeding the discharging water of the cartridge filter into a composite fine filter with a KDF filter material and activated carbon to be filtered; enabling the discharging water of the composite fine filter to flow back the water cabin; feeding the water flowing back the water cabin to a circulating pump; then feeding the discharging water of the circulating water pump into a micro-electrolysis water producer; feeding the discharging water of the micro-electrolysis water producer into the water cabin for a standby purpose. Solid impurities and microorganisms, which are produced in the boat drinking water storage process can be effectively removed by the method through the accurate control of all technical parameters, stable disinfectant quality is maintained in the stored drinking water, and the long-term fresh keeping of the boat stored drinking water is realized.

The invention provides a plant floating bed. The plant floating bed mainly comprises a supporting frame, a floating body which is mounted at the bottom of the supporting frame and a carrier on the upper surface of the supporting frame; the supporting frame forms a plane by splicing and constructing bracket monomers; the supporting frame floats on the surface of water by the floating body; the carrier comprises a supporting net on the supporting frame and soil and plant humus which are spread on the supporting net; two or more aquatic plants are planted on the carrier in a mixed manner; the aquatic plants absorb nutrient elements, such as nitrogen and phosphorus, in a water body, and the eutrophication degree of the water body is lightened, so that an effect of purifying water quality is achieved; the invention also provides a method for treating water body pollution by the plant floating bed.

The invention relates to a rainbow trout breeding method for environment release detection of a nucleic acid vaccine, belongs to the technical field of rainbow trout environment release detection, andsolves the problem of subsequent experiment research shortage of fishery vaccines. Before an environment release breeding test, a rainbow trout breeding system for environment release detection afterinjection of the nucleic acid vaccine normally runs for 25-30 days; system operation parameters and water body indexes are detected; rainbow trout with individual weight of 4-6g is selected after thedetection is passed; dorsal fin base muscle injection immunization of the nucleic acid vaccine is performed in 2 days of stopping eating; the rainbow trout is randomly divided into a blank group andan immune group during the immunization; after the injection, the rainbow trout is placed in a breeding pond for breeding in the rainbow trout breeding system for the environment release detection after the injection of the nucleic acid vaccine; and the environment release detection is carried out at a certain time interval. The method can ensure that a breeding environment is suitable after the vaccine is injected.

The invention discloses an A/A/O system for synchronously strengthening biochemical phosphorus removal based on a powdery lanthanum-based adsorbent. The invention belongs to the field of sewage treatment, and particularly relates to an A/A/O system for synchronously strengthening biochemical phosphorus removal based on a powdery lanthanum-based adsorbent. The invention aims to solve the problems that the effluent total phosphorus in the traditional biological nitrogen and phosphorus removal A/A/O (Anaerobic/Anaerobic/Anoxic/Oxic) process does not reach the standard, a large amount of residualsludge is generated by chemical phosphorus removal and the like. The system comprises an anaerobic tank, an anoxic tank, an aerobic tank group and a sedimentation tank which are connected in sequence,and a lanthanum-based adsorbent is added at the tail end of the aerobic tank to form a synchronous enhanced biochemical phosphorus removal system. The adsorbent not only can play a role in chemicallyadsorbing phosphate, but also has a strengthening effect on activated sludge in the reactor, so that the formation of EPS is strengthened, and the growth of phosphorus-accumulating bacteria is also strengthened. The system is used for sewage treatment.

The invention relates to a design calculation method of enlarging volume of the sewage plant. A design calculation method of using A/O type bio-aeration filter to enlarge the volume of said sewage plant, including one-level effluent-handling prime settling pool (2), second-level effluent-handling second settling pool, whose main feature is: set water-intake balancing tank (4) on water-outlet end of said second settling pool (1), connect the tertiary sewage treatment A/O type bio-aeration filter (3) to water-intake balancing tank (4). The invention requires the quality of outlet-water completely after enlarging the volume on the base of present outlet-water quantity of second settling tank and the quality of second settling tank, prime settling tank, calculates some main design parameters such as: outlet-water quantity of said introduced prime settling tank, outlet-water circulating mass, volume of anoxybiotic section, volume of aerobic section, etc. The invention is characterized by: precise calculating method, reliable parameters, A/O type bio-aeration filer applied to the design calculation of enlarging volume of tertiary treatment of present urban sewage plant.

The invention relates to a leachate treatment process of a waste incineration plant, comprising the following steps: 1) introducing the landfill leachate into a grid grit chamber to remove suspended solids and sediment in the leachate; 2) overflowing the leachate into the regulating tank Stirred by the submersible mixer; 3) The leachate in the adjustment tank enters the primary sedimentation tank; 4) The overflow of the leachate after sedimentation in the primary sedimentation tank enters the UASB reactor; 5) The effluent of the UASB reactor overflows to the facultative tank, and then 6) The supernatant of the secondary sedimentation tank overflows into the coagulation and flocculation tank, and after removing SS and CODCr in the clear liquid, it is pumped to the membrane treatment system by water pump; 7) The clear water entering the membrane treatment system passes through the supernatant After filtration and nanofiltration, it enters the clean water well and discharges directly. The invention adopts comprehensive physical and biochemical methods to process the landfill leachate, can process high-indicator sewage, improves the quality of effluent water, has good device operation stability, and reduces operating costs.