79results about How to "Restore self-cleaning ability" patented technology

The invention discloses an ecological restoration and purification method for landscape water environment which is characterized by comprising the following steps of (1) performing bottom mud sterilization and activation treatment; (2) splashing a microbial flora compound preparation; (3) reconstructing a submerged communities; (4) repairing an aquatic ecosystem food chain; and (5) performing aquatic ecosystem conservation management. According to the ecological restoration and purification method for the landscape water environment, a biological integrated control technology is applied, and the water purification effect is achieved by use of submerged plants; furthermore, decomposers, namely microorganisms in an ecosystem are fully utilized, and multiple types of aquatic animals are put in the aquatic ecosystem, so that the ecosystem food chain is perfected, various aquatic species promote and restrict one another, the whole riverway, lake, pond and wetland system is kept in dynamic balance for a long time, the original self-purification capability of the aquatic ecosystem is restored, and a long-term stable effect is achieved.

The invention provides a black and odorous water / eutrophicated water treatment method and device, and application thereof. The method mainly comprises the following steps: (1) treating river course sediment; (2) treating by a bypass high-efficiency bioreactor; (3) oxygenating the river course; and (4) adding a microbial inoculant and a stimulant. The external sources are controlled: the upstream uncontrollable pollution source or severe black and odorous / eutrophicated water is pretreated by a bypass high-efficiency bioreactor, and the microbial-ecological restoration measures are taken to effectively control the black and odorous / eutrophicated water pollution sources. The black and odorous / eutrophicated water sediment is digested to reduce the endogenous pollution. The bypass high-efficiency bioreactor technique and the oxygenation technique are combined, so that the quality of the black and odorous / eutrophicated water is maintained; and the self-purification capacity of the water is enhanced, thereby providing a feasible restoration method for treating the black and odorous / eutrophicated water.

The invention discloses a processing system and processing technology for removing river pollution bottom silt in a central urban area. The processing system comprises a multi-functional desilting vessel, a silt storage and transportation vessel and a silt dehydrating and drying vessel, wherein the multi-functional desilting vessel, the silt storage and transportation vessel and the silt dehydrating and drying vessel are communicated through pipelines. The multi-functional desilting vessel comprises a machine body, wheel-type supporting legs, a coarse garbage collection tool / reamer tool arranged at one end of the machine body and a first hydraulic system used for driving the coarse garbage collection tool / reamer tool. The silt storage and transportation vessel comprises a storage and transportation vessel body, positioning piles and a silt cabin, wherein a plurality of stirrers are further arranged in the silt cabin, the silt cabin is connected to the silt dehydrating and drying vessel through a pipeline. The silt dehydrating and drying vessel comprises a dehydrating and drying vessel body, positioning piles, a second hydraulic system, a stirring cabin, a chemical feed device and a drying device. According to the processing technology, a mobile processing station is adopted, all the devices are arranged aboard for operation, and therefore land resources are not occupied. Moreover, a processing method is simple, a processing period is short, the silt processing is thorough, and operability is high.

The invention relates to a black and odorous and eutrophication water body biological and ecological remediation and treatment process. The treatment process can carry out source biological and ecological interception on surface water pollution and is combined with terminal water body bioremediation. The invention can not only control pollution load entering a water body, but also beautify river way and revetment of lakes, and doesn't occupies need extra land. The water body biological remediation system can improve a water micro-ecosystem, restore water body biodiversity, improve the self-cleaning capability of the water body, and effectively improve the water quality of the water body. The invention has great popularization value on the treatment of surface water, especially urban rivers and lakes.

The invention relates to the field of black and odorous water body remediation, in particular to a sediment improving material for a black and odorous water body and a use method, and aims to providea sediment improving material capable of fundamentally eliminating black and odorous phenomena of the water body for the black and odorous water body. The sediment improving material is prepared from1-30 parts by weight of a sediment improving material A and 0.5-10 parts by weight of a sediment improving material B, wherein the sediment improving material A comprises iron powder, carbon powder, aluminium oxide, natural minerals and / or silica; the sediment improving material B comprises calcium nitrate, calcium peroxide and / or chitosan.

The invention relates to the technical field of river treatment, in particular to a method for polluted river comprehensive treatment. According to the method for polluted river comprehensive treatment, comprehensive treatment is conducted in four aspects including external-source polluted water, river polluted water, river sludge and river periphery. The external-source polluted water and the river polluted water are purified in the method that a compound nanometer water quality conditioner and a compound microorganism preparation are directly added to the external-source polluted water and the river polluted water. One layer of bottom sludge kept constantly at the bottom of a river is beneficial to recovery of the self cleaning capacity of a body of water, after partial clearing is conducted for multiple times, the constant ecological balance of water streams of the river can be achieved, and virtuous cycle can be achieved; artificial landscape balances a wet land and imitates the nature, the conditions beneficial to growth of needed animals are created, and the functions of the soil improvement, water purification, pollution prevention and treatment, automatic balancing of acid rain pollution are achieved. According to the treated river, the water is clear and green all year round, submerged aquatic plants, floating aquatic plants, emerged aquatic plants and the like and animals reappear, the purposes of 'the clear water, the smooth river, the green bank and the beautiful scene' are achieved, and reestablishment of an ecosystem is really achieved.

The invention relates to a micro-ecological activation system for water treatment. The micro-ecological activation system comprises a porous adsorption and in-situ micro-ecological activation materialand an ultrafine porous adsorption and in-situ micro-ecological activation material; and the porous adsorption and in-situ micro-ecological activation material and the ultrafine porous adsorption andin-situ micro-ecological activation material contain nutrients and trace elements, needed by microorganisms. A bag made from a porous easy-adsorption material is filled with the above components to form a micro-ecological activation bag. The system and the bag are suitable for purifying various water environments. A biotechnology and a new material technology are organically combined, nutrients are provided to rapidly breed indigenous microorganisms in the water environment, including bacteria, actinomycetes and prokaryotes in order to form bio-flocs and a multilayer biofilm, and in-situ treatment of pollutants is realized by the denitrification of the microorganisms and the establishment of an efficient food chain in order to repair the ecosystem, restore the self-purification ability ofwater and form a microbial in-situ culture purification system.

The invention discloses a pudendum cleaning wet tissue liquid and a preparation method thereof. The pudendum cleaning wet tissue liquid is prepared according to the following steps: adding purified water into a stirring container, subsequently adding a surfactant and stirring for 10-35 minutes until the surfactant is completely dissolved; subsequently adding 1 part of a preservative agent, 3 parts of oligosaccharide, 1 part of a stabilizing agent and 3 parts of a moistening emollient into the stirring container and stirring for 30-35 minutes until solid substances are completely dissolved; afterwards adding 1 part of an additive into the stirring container, stirring for 25-30 minutes and regulating the pH value of a solution in the stirring container to be weakly acidic. The pudendum cleaning wet tissue liquid disclosed by the invention has the beneficial effects of having a remarkable inhibition effect on various gynecologic inflammation pathogens and also providing a skin moistening effect.

The invention relates to the technical field of self purification of riverways, in particular to an ecological system for improving the self purification capacity of a riverway and a construction method of the ecological system. The system comprises the riverway, side slopes arranged on the two sides of the riverway and infiltration dams arranged on the riverway at intervals, wherein a stone purification layer is arranged on the surface layer of the river bottom of the riverway. A soil layer is further arranged on the stone purification layer. Water is arranged on the soil layer. An aquatic plant community layer is arranged on the surface layer of the water. Ecological bags are arranged on the side slopes. A vegetation layer is arranged on the surface of each ecological bag. The complete riverway ecological system is constructed in a staging manner through a chemical method, a biological method and an ecological method according to different water quality conditions; the water qualityis purified, and meanwhile the self purification capacity of the water is improved; the original ecological system of the water is restored; no secondary pollution is generated; and it is guaranteed that the repaired riverway ecological system operates stably for a long time.

The invention discloses a novel compositing agglomerant, and a riverway, lake in-situ dredging and ecological restoration technology. The novel compositing agglomerant comprises the following components in parts by weight: 70 to 90 parts of diatomite, 20 to 30 parts of aluminium potassium sulfate, 20 to 30 parts of sodium carbonate, 15 to 20 parts of an inorganic chelating agent, 15 to 20 parts of a buffering agent, 8 to 10 parts of an enzyme biological accelerator and 6 to 8 parts of a deodorizing agent. In-situ dredging is adopted, construction is directly conducted in the riverway or the lake, and sludge obtained after treatment does not need to be transported outwards and filled, so that a large amount of manpower and financial resources are saved, and secondary pollution is avoided; due to in-situ dredging, sludge residues at the bottoms of the river and the lake are eliminated maximally, and activation and recovery of soil family microbial culture in riverbed and lake base mud are benefited; the novel compositing agglomerant has the advantages of high agglutination and settling speed, low water content of the sludge and small occupied land during operation, and meets the requiremets of river and lake management, so that water quality is improved, the activity of the river and lake sludge is recovered gradually through management, the river and the lake recover the self-cleaning capability, and ecological balance is achieved.

The invention discloses in-situ ecological living water equipment which comprises a circulating living water device, a micro-nano aeration device and a reagent dosing device, wherein the circulating living water device sequentially comprises a top cover, a driving device and an impeller with a plurality of blades from top to bottom; the driving device is used for driving the impeller to rotate; the micro-nano aeration device is connected to the lower side of the circulating living water device and sequentially comprises a flow divider, at least one dissolved air tank and a double entry pump from top to bottom; the reagent dosing device is arranged at the top of the driving device of the circulating living water device; a drug inlet is formed in the tail end of a second water inlet of the double entry pump; the drug inlet is connected with the reagent dosing device; and reagents in the reagent dosing device enter the micro-nano aeration device via the drug inlet under the action of a negative pressure produced by the double entry pump. According to the device disclosed by the invention, vertical circulating convection of a water body can be rapidly realized, uniform high-density micro-nano bubbles are generated to promote oxygen dissolving, and water treatment reagents are uniformly dispersed in the water, so that water body pollution is treated.

The invention relates to a method and a system for improving water quality of a black and odorous water body in a river channel. The method is characterized in that the downstream water body of the river channel is extracted, non-soluble organic pollutants, total phosphorus and solid suspended matters in the water body are removed by a magnetic coagulation treatment technology, the turbidity of the water body is reduced, and the transparency of the water body is improved; the water body treated by the magnetic coagulation treatment technology is transported to the upstream of the river channelas a water supplement source of the upstream water body of the river channel, supplementing water flows automatically with the upstream water body of the river channel to the downstream of the riverchannel, and the S1 step process is repeated to form a living water cycle; aeration and reoxygenation are performed on the water body of the river channel, the dissolved oxygen concentration of the water body of the river channel is improved, and the oxygen content of the water body is improved; the ecosystem of the water body of the river channel is restored, dissolved organic matters in the water body of the river channel are purified; the method breaks through the problems that not-up-to-standard COD, ammonia nitrogen, and total phosphorus of the current water body treatment, and lack of self-purification ability of the river channel. The main indicators of the water body of the river channel treated by the method and system can reach the standard of surface water type IV water.

The invention discloses a phosphorous and turbidity removal system for tidal river black and odorous water bodies. The system comprises an upstream water quality monitoring system, a pretreatment system, a precipitate treatment system, a water quality conservation area, a downstream water quality monitoring system and a control and command center from the river upstream to the river downstream sequentially. The control and command center is respectively connected with the upstream water quality monitoring system, the pretreatment system and the downstream water quality monitoring system. The invention further provides a phosphorous and turbidity removal method for tidal river black and odorous water bodies; the method includes the steps of monitoring water quality of the upstream and the downstream, determining feed quantity through the control and command center automatically, feeding phosphorous separating and algae controlling agents, treating precipitates and the like. The phosphorous and turbidity removal system and method for tidal river black and odorous water bodies has the advantages of low investment cost for building, low cost for operation management and operational simplicity, is economical and adaptable to treatment of tidal river black and odorous water bodies, can remove phosphorous in the water bodies effectively, can reduce turbidity of the water bodies to improve transparency of the water bodies.

A biological treatment process for surface water with duckweeds is characterized by comprising a constructed wetland and an anaerobic biochemical pond, the constructed wetland is arranged on a river channel revetment, the anaerobic biochemical pond is arranged at the position of a drain outlet of a river channel, an outlet of the anaerobic biochemical pond leads to the constructed wetland, and a mist spray device is arranged at the position of the junction of the constructed wetland and the river channel and used for casting biological agents into the river channel and the constructed wetland and breeding mature ducks in a water area to be treated. The biological treatment process has high popularization values in treatment and maintenance of water bodies with a large amount of proliferated and gathered duckweeds.

The invention discloses a method for performing ecological restoration of hardened river banks by mangrove forest plants. The method comprises the following steps: removing concrete hard banks on two sides of a river channel, and protecting the banks by adopting gabion retaining walls; driving tightly arranged pine piles into a riverbed, 2-3 m away from the banks, on the inner sides of the gabion retaining walls, and filling the area defined by the pine piles and the river banks with soil to form a first beach face; in a river section with a wider river channel cross section and a lower flow speed, forming a stepped slope according to terrains; planting true mangrove plants on the first beach face; and planting the true mangrove plants and semi-mangrove plants sequentially from the near-water side to the near-shore side. According to the method, the maximum water passing amount of the cross section is increased by removing the concrete river banks and adopting the terrain design of the gabion retaining walls and the stepped slope, and the flood discharging function is enhanced. The mangrove forest plants are planted on the two sides of the river, formation of different types of habitats such as the river, mangrove forests and semi-mangrove forests is promoted, various water pollution indexes such as ammonia nitrogen, COD (chemical oxygen demand) and the like are obviously reduced, and DO (dissolved oxygen) is obviously increased.

The invention discloses an ecological floating plate for riverway sewage treatment. The ecological floating plate comprises a plate body, wherein a planting pot is arranged in the plate body, two vertical plates are symmetrically arranged at the bottom of the plate body, a push rod is movably arranged in the single vertical plate, a clamping block is arranged at the end of the push rod and is circular-arc-shaped, connecting blocks are arranged at two ends of the clamping block, fixing plates are arranged at the ends of the connecting blocks, a bolt is arranged between the two adjacent fixing plates for fixing, a limiting hole is formed between the two adjacent clamping blocks, and the planting pot is clamped in the limiting hole. The planting pot can be limited on the plate body, the stability of the planting pot can be improved, the planting pot does not turn on one side under the impact of river water, the treatment efficiency is improved, the self-cleaning capability of a water body can be recovered, and good harmonious development between the water body and an ecological system in the water body is achieved.

The invention discloses an ecological treatment method of a black and foul water body and relates to the technical field of environmental treatment. The method particularly comprises the following steps: S1, inlet sewage interception: checking and sealing drain outlets at both banks of a watercourse, constructing a plurality of reservoirs according to the length of the watercourse, constructing orperfecting a sewage interception pipe network to effectively intercept sewage flowing into a river and reduce pollution of the sewage to the river from the source, introducing the sewage from the drain outlets into the reservoir through pipelines, thoroughly treating the sewage using an intelligent quick sewage treatment device together with a specific water clearer and alga removal and deodorization agent, adding thoroughly treated water into the river. The method is good in sewage interception effect; and after disperse treatment, the sewage from an external source does not flow into the river any longer. According to the ecological treatment method of the black and foul water body, solid pollutants in the black and foul water body are removed preliminarily in a manual or mechanical salvage manner; the method is strong in environmental suitability, low in cost, good in effect, environmentally friendly, pollution-free, and simple to prepare, takes effect quickly, has no and has positive engineering practicability.

The invention provides an ecological restoration method for a black and odorous river channel, and belongs to the technical field of sewage treatment. According to the method, ecological restoration is carried out on the black and odorous river channel from five aspects of source control and sewage interception, bottom mud treatment, water body purification, ecological restoration and maintenance management, and the method is high in operability, thorough in treatment and high in treatment efficiency; through reconstruction of a riverway ecological system, the self-cleaning capacity of the water body is gradually restored, the peculiar smell and chroma of the black and odorous water body are gradually eliminated, finally ecological balance of the water body is achieved, the water quality is improved, the water body ecological system can be healthily and stably developed for a long time, and good environment-friendly and ecological functions are achieved.

The invention relates to a micro-oxygenation on-line monitoring automatic control system which comprises a water quality monitoring system, a data processing system and a micro-oxygenation aerating system, wherein the water quality monitoring system is arranged in a water body to be restored, and used for performing on-line in-situ detection on changes of water quality indexes, converting the detection values into an electric signal in real time and transmitting the electric signal to the data processing system; the data processing system is used for comparing the value measured by the water quality monitoring system with the system set value, determining whether oxygen supply is needed, giving out the aeration amount required by the water body of the corresponding region if the oxygen supply is needed, and meanwhile, transmitting an electric signal to start the micro-oxygenation aerating system; and the micro-oxygenation aerating system is used for controlling the amount of air entering the water body by using an electric control valve on the air pipe, thereby performing aeration. The micro-oxygenation on-line monitoring automatic control system can adopt different aeration intensities according to different water qualities.

The invention discloses a bacteriostatic and antiviral preparation taking kidney bean phytohemagglutinin as a major ingredient, and belongs to the technical field of medicines. The bacteriostatic andantiviral preparation consists of the following active components according to relative parts by weight: 0.1-1.0 part of the kidney bean phytohemagglutinin, 0.2-2.0 parts of one or two of stachyose and raffinose as well as one or more of the following active components: 0.1-0.5 part of povidone iodine, 0.1-0.3 part of polyhexylene biguanidine and 0.1-0.5 part of chlorhexidine; and in addition, a thickening agent, which is hydroxyethyl cellulose, is required. The bacteriostatic and antiviral preparation provided by the invention is concrete in components, and is capable of achieving quantitative control and guaranteeing the consistency and stability of overall quality; a concrete inhibitory effect can be achieved on bacteria, fungi and viruses; therefore, the bacteriostatic and antiviral preparation is relatively broad in antibacterial and antiviral ranges; and the product (the bacteriostatic and antiviral preparation), which is required to be preserved at low temperature, is long in preservation duration and convenient to use.

The invention provides a MANWMB (micro nano aeration wastewater microbial bioremediation) system for black and odorous river control and a control method thereof. The MANWMB system mainly comprises a river, a first reaction area, a second reaction area, a third reaction area, a fourth reaction area, a micro nano plug-flow aerator, a microbial carrier, a microbial carrier fixing rope, a microbial carrier fixing column, a stirrer, a microorganism adding device, an online monitoring system, photovoltaic power generation equipment and the like. By establishing different reaction areas, installing filler and adding microbial strains in the river, enough dissolved oxygen is provided for the river under the action of the micro nano plug-flow aerator, and the water quality is monitored in real time through the online monitoring system to finally guarantee the purification and remediation of the black and odorous river. Compared with the existing river control technology, the system provided by the invention is compact in structure and reasonable in layout, and related technological parameters can be adjusted according to the water quality so as to guarantee up-to-standard water quality. Meanwhile, since no chemical agent is used in the whole control process, the MANWMB system is an environment-friendly and efficient novel black and odorous river remediation technology.

The invention relates to a large shallow lake deep and shallow bottom layer landform reconstruction and benign stable ecosystem which is characterized in that bottom mud a is excavated to form a shallow water type lake deep water area, the excavated bottom mud a is buried in other areas of the lake, bottom mud b formed after the bottom mud a is conveyed is accumulated to form a shallow water area, the periphery of the shallow water area is a lakeside zone, the lakeside zone is located in a land and water interlaced zone of the shallow lake, ecological reefs are put in the deep water zone, submerged plants and ornamental lophatherum gracile are planted in the shallow water zone, and emergent aquatic plants are planted in the lakeside zone. The ecological principle is utilized, and the self-cleaning capacity of the shallow lake is restored by reconstructing deep and shallow bottom layer landforms, constructing a biocenosis structure of a damaged water body ecological system and restoring biodiversity, so that the virtuous circle of self-maintenance and self-succession of the ecological system is realized.

The invention relates to a traditional Chinese medicine composition for treating gynecological inflammation. The traditional Chinese medicine composition is composed of the following raw medicinal materials in parts by weight: 10-50 parts of alumen, 10-50 parts of cortex phellodendri, 10-50 parts of rhizoma atractylodis, 10-30 parts of fructus cnidii, 10-50 parts of fructus kochiae, 10-50 parts of resina draconis, 5-25 parts of borneol, 10-50 parts of catechu, 10-30 parts of bletilla striata, 10-50 parts of pseudo-ginseng, 10-50 parts of sophora flavescens, and 10-50 parts of Chinese paris rhizome. The traditional Chinese medicine composition belongs to an externally-used gynecological inflammation-treating drug, and is safe to use and substantial in treatment effect.

The invention discloses a composite micro-ecological preparation for treating black and odorous water body, which belongs to the technical field of biology and water treatment. The composite micro-ecological preparation for treating black and odorous water is prepared from the following components: 50-70mL of composite microorganisms with the concentration of 107-1010cfu / mL, 10-15g of enzyme, 3-8gof a biosurfactant, 5-10g of microorganism source algistat and the balance of water, totaling 100mL, according to the composite micro-ecological preparation for treating the black and odorous water body, the black and odorous water body is treated through the synergistic effect of all the components, the water quality is rapidly and effectively improved, the water ecology is restored, and the self-cleaning capacity of the water body is restored.

The invention discloses a water quality treatment plant used in a watercourse. The water quality treatment plant comprises biological floating plates and fixed rods, installation holes are transversely formed in the biological floating plates, the fixed rods are arranged in the installation holes, position adjusting devices are arranged at both ends of the fixed rods; each position adjusting device comprises U-shaped steel and a driving rod, wherein the U-shaped steel of each position adjusting device is provided with a guide plate, a driving rod is movably arranged in the guide plate, the bottom of the U-shaped steel is provided with a baffle, and the top end of the driving rod is in contact with the side face of the baffle. According to the water quality treatment plant used in the watercourse, the biological floating plates are all arranged on the fixed rods so as to form an integral whole, when an operating worker applies force on the driving rods, the driving rods make contact with the side faces of the baffles under a guiding role of the guide plates, as the driving rods extend, the entire biological floating plates can be moved to a water quality pollution area in the watercourse, the position where water quality treatment is conducted is adjusted according to the water quality pollution area in the watercourse, thus treatment efficiency is improved, self cleaning capacity of the water body is resumed, and a good harmonious development between the water body and an ecological system in the water body is reached.

The invention relates to an in-situ ecological running water water-purification device including a circulating running water device, a micro-nano aeration device and a negative ion generator. The micro-nano aeration device includes a shunt, at least one dissolved gas tank and a double-suction pump from up to down successively; the tail end of a water inlet of the double-suction pump is provided with a gas inlet, and the gas inlet of the double-suction pump communicates with the external atmosphere through a gas inlet pipe; a water inlet of the shunt is connected with a water outlet of the double-suction pump; at least two water outlets are arranged at the top of the shunt, at least one water outlet of the shunt is connected with the dissolved gas tank through a water inlet of the dissolvedgas tank; at least one group of turbulent flow blades is arranged at the water inlet of the dissolved gas tank and inside the dissolved gas tank; a venturi tube is arranged at a position of a water outlet at the bottom of the dissolved gas tank, and a liquid in the dissolved gas tank is discharged into a water body through the venturi tube. The device can quickly realize three-dimensional circulation convection of the water body, and uniform high-density micro-nano bubbles are generated to promote oxygen dissolving and purify the water quality.

The invention relates to a microbial water body in-situ treatment flora purification body and a sewage treatment method adopting the same. The microbial water body in-situ treatment flora purificationbody comprises the following components in parts by mass: 30-40 parts of a flora adsorption body, 2-7 parts of a microbial compound bacteria solution, 3-7 parts of a carbon source, 40-60 parts of clay, 2-7 parts of rice bran and 2-8 parts of bottom mud. According to the microbial water body in-situ treatment flora purification body, microbial florae can be better fixed to river sediment to be treated, the situation that the microbial florae are easily washed away and dispersed by water flow like bacterial liquid is avoided, and therefore the microbial florae can fully react with harmful pollutants in the sediment to absorb, degrade and convert the pollutants in a river. Therefore, the black and odorous water body and the black and odorous bottom mud are locally reduced and improved at theoriginal position, a better sewage treatment effect is further obtained, finally, an original water area ecological circulation system is restored, the self-purification capacity of the water area isrestored, and the treatment effect is remarkable.

The invention relates to a wetland pre-pond eutrophication control method which comprises the following steps: at the early stage of ecological system construction, biological bricks, a phosphorus locking agent and a circulating aeration device are applied to quickly improve the water quality and the substrate of a pre-pond; after the water ecosystem is rapidly restored, the plants are systematically planted in the pre-pond water, the bottom and the bank, after the clear water steady-state shallow lake ecosystem based on the submerged plants is gradually formed, rapid improvement measures aregradually reduced and even omitted, and the project is periodically maintained. With application of the control method, water-bottom-bank systematic habitat optimization can be conducted on the pre-pond, natural construction and gradual improvement of the clear water steady-state shallow lake ecosystem are promoted, and thus eutrophication of the pre-pond is prevented for a long time.

The invention discloses a method for effectively removing COD from polluted water. The method comprises the following steps: 1, selecting florae composed of 5-15 parts of pseudomonas, 15-25 parts of Bacillus spp, 5-10 parts of acinetobacter, 5-10 parts of nitrobacteria, 10-15 parts of denitrifying bacteria, 10-20 parts of microzyme and 10-15 parts of photosynthetic bacteria; 2, directly inoculating a medium with the florae according to an inoculation amount of 1% (w / v), and activating bacterial strains at 37 DEG C under 120 rpm for 16 h to make the total strain quantity be greater than 10<9> CFU / ml; and 3, adding 0.05-0.1% of a mixed bacterial liquid formed by the activated florae to polluted water to be treated. The microbial florae applied to the invention have high adaptability, and can effectively remove the COD pollutants in the polluted water, and the removal rate reaches 90% or above; and the method has the advantages of reduction of the content of ammonia nitrogen, total nitrogen and total phosphorus in water, deodorization and turbidity reduction effects, inhibition of growth and breeding of harmful bacteria, and substantial water purifying effect in order to recover the self-cleaning ability of water.