The best way to treat aquaculture wastewater is to use the "Diversion Aerated Biological Filter" microbial generator.
The diversion aerated biological filter fully draws on the aerated biological filter method, contact oxidation method, biofilm method, gap aeration method, artificial rapid filtration method, sedimentation separation method, nitrification and denitrification method , water supply rapid filtration method and other eight design techniques, and new sewage treatment processes and technologies developed by combining secondary or tertiary sewage treatment processes. There are engineering examples of diversion aerated biological filters in Beijing, Shandong, Hebei, Guizhou, Shanxi, Sichuan, Inner Mongolia, Heilongjiang, Jiangsu, Jilin, Henan, Hubei, Tianjin, Xinjiang and other places in my country. The cases involve living, hospitals, Wastewater treatment in chemical industry, slaughtering, food, flax, alcohol, pharmaceuticals, mustard and other fields. A large number of applications have proved that: the effluent water quality CODcr is generally below 20mg/L, with a minimum of 5.95mg/L; BOD5 is generally below 10mg/L, with a minimum of 3.50mg/L; SS is generally below 20mg/L, with a minimum of 6.55mg/L.
The diversion aerated biological filter allows sewage to be aerated twice, sedimented twice, and filtered twice in the same treatment tank, solving other sewage treatment processes that require four tanks to complete. Especially under the condition of continuous water inflow, intermittent aeration and activated sludge return are achieved, and the entire operation is not idle. Its advantages are more prominent than traditional treatment methods, and the treatment effect is particularly significant. In August 2009, the product was listed as an "Innovation Project" by the Ministry of Science and Technology; in December 2009, the product was listed as a "Catalogue of Environmental Protection Technologies Encouraged by the State" by the Ministry of Environmental Protection; in May 2010, the product was listed by the Ministry of Science and Technology, The Ministry of Environmental Protection, the Ministry of Commerce, and the General Administration of Quality Supervision, Inspection and Quarantine reviewed and identified it as a "National Key New Product"; in July 2012, it was listed as an "Environmental Protection Technology Encouraged by the State" during the 12th Five-Year Plan period by the Ministry of Environmental Protection.
The main advantages of the microbial generator are as follows:
1. High degree of automation and good sewage treatment effect
The equipment adopts three-stage generation, alternate operation, and step-by-step Derivative and logarithmic growth technology allows the density of microorganisms produced by the generator to reach as high as 1.8×1020CFU/ml. After the high-density microorganisms are released into the microbial purification treatment equipment, the biomass in the microbial purification treatment equipment rapidly increases to more than 2.0×104mg/L. It can completely decompose pollutants in sewage into CO2 and H2O, thereby purifying sewage.
2. Wide adaptability
This equipment is an ideal biological purification treatment equipment for sewage. It can generate different populations according to the needs of sewage treatment of different types, properties and environments. Microorganisms of different genera, different temperatures, and different sewage treatment needs are especially suitable for urban domestic sewage, rural domestic sewage, medical sewage, industrial wastewater, livestock and poultry breeding wastewater, high-salt wastewater, high ammonia nitrogen wastewater, toxic and harmful wastewater, heavy metal wastewater, Waste (sewage) water treatment needs such as landfill leachate.
This equipment can also be directly matched with old sewage treatment projects such as contact oxidation method, AB method, A/O method, oxidation ditch, SBR, etc., without changing the sewage treatment process or civil engineering. Under the conditions, various purposes such as sewage treatment upgrade and capacity expansion, sludge reduction, nitrogen and phosphorus removal, and reclaimed water reuse can be realized. The equipment can also be used to remove micro-pollution in landscapes, rivers, lakes, rivers, saltwater lakes, bays, land and other fields to protect the public environment.
3. Outstanding economic benefits
This micro-device produces high-density dominant microbial flora, which can quickly eat away pollutants and sludge in sewage without producing odor. There is no need for sludge dehydrators, sludge conveyors, mud cake transport trucks, waste gas treatment equipment and high-power blast aeration equipment. Compared with traditional methods, the energy consumption is 1/8 of the activated sludge method, and equipment investment can be saved. It saves 70% and can also operate on shallow pools, thus reducing the size and depth of the sewage treatment pool, greatly reducing one-time investment costs and long-term management costs.
4. Easy management, safe and reliable
After the high-density microbial flora produced by this equipment enters the treatment tank through the jet, it can quickly reduce the biological oxygen demand (BOD) in the sewage. , chemical oxygen demand (COD) and suspended solids (TSS), and has extremely strong nitrogen and phosphorus removal functions. It can also convert category 5 water into category 3 or above in a very short time, and eliminate wastewater in 7 days. It will eat up about 50% of the sludge in the sewage within 10 days, degrade 20% of the BOD every day, and achieve standard discharge or reclaimed water reuse within 10-15 days.
Using this equipment to treat sewage does not have to worry about sludge expansion, nor is it restricted by the operator’s education and age. It is easy to manage, safe and reliable.
5. No secondary pollution, create a green environment
With the increasing occurrence of high-density microbial flora, the biological oxygen demand (BOD) in sewage is also increasing. The less BOD, a large number of microorganisms lose their survival energy and self-destruct, turning into carbon dioxide and water. Microorganisms that are not self-destructed can also become food for fish and plankton, thus forming a benign ecological treatment and purification process, without odor, No sludge is produced, no secondary pollution is produced, and a green environment is created.
6. Complete biochemical treatment without being affected by climate
The traditional biochemical method is used to treat sewage. It is affected by changes in climate and water temperature. When the temperature drops by 10 degrees, the enzymatic activity of microorganisms decreases. The reaction speed is reduced by 1-2 times. The climate causes insufficient activity of microorganisms, resulting in poor sewage treatment effects. This not only threatens the sewage treatment plants in the north, but also poses a severe test to the sewage treatment plants in the south in winter. Guizhou Great Wall Environmental Protection Technology Co., Ltd. The patented product microbial purification treatment equipment produced completely solves this problem. After the high-concentration microbial flora generated by the generator system is released into the microbial purification treatment system, its biomass speed reaches more than 2.0×104mg/L, making the microorganisms purified. The biological concentration in the treatment equipment is 10 times higher than that of activated sludge, which solves the technical problem of insufficient biomass and poor sewage treatment effect due to low water temperature.
7. Solve the lack of activity and ensure that water quality meets standards
Adopt traditional biochemical methods to treat high concentration, high ammonia nitrogen, high salt content, toxicity, and heavy metal wastewater. Since microorganisms are present in these wastewaters, There are few survivors and small quantities, resulting in poor effluent quality after sewage treatment, unstable effects, and difficulty in meeting discharge standards. The microbial purification treatment equipment completely solves this problem in a unique way. The microbial generation system can continuously send the produced high-concentration microbial flora above 1.8×1020CFU/ml into the microbial purification treatment equipment. Compared with other sewage The treatment increases biomass by more than 10 times, and the powerful microbial flora accelerates the degradation and digestion of pollutants in sewage. At the same time, the oxygen supply of the microbial purification reaction equipment significantly accelerates the decomposition of pollutants into CO2 and H2O, nitrates, and sulfuric acid. Salt becomes a nutrient for the growth of microorganisms, so that the microorganisms are further derived. Even if they are affected by cold weather, low temperature, shock load, high concentration, high ammonia nitrogen, high salt content, toxicity, and heavy metal inhibition, they cannot stop the competition. Successive armies of microorganisms form a powerful lineup for sewage treatment, thereby degrading and digesting pollutants in sewage, and ultimately achieving wastewater discharge up to standards or reclaimed water reuse.
8. Innovate micro-pollution control methods
Traditional river management is inseparable from processes such as dams, water cutoffs, and dredging. The projects are expensive, long-term, and have a large amount of silt. Microbial purification treatment equipment is installed directly upstream of micro-pollution sources such as landscapes, rivers, lakes, rivers, saltwater lakes, bays, and land. It cuts off and blocks the source of pollution, and uses microorganisms to degrade pollution, eat sludge, remove odors, and eliminate Phosphorus denitrification and other functions achieve thorough control, providing reliable equipment for micro-pollution control