1, livestock and poultry manure emissions;
2, livestock and poultry pollutants involved in a wide range of hazards, the COD emissions of livestock and poultry manure has been far more than the industrial and domestic sewage emissions;
3, showing a more serious ecological pressure. Emissions;
3, showing more serious ecological pressure.
The Ministry of Environmental Protection of the country's 23 provinces on the scale of livestock and poultry farming pollution survey results found that:
1, according to the "Livestock and Poultry Farming Pollution Prevention and Control Technical Specification" stipulates that, large-scale livestock and poultry farms and the distance from the residential area should not be less than 5,000 m, but 2 9 pig farms, there are l 8 does not meet the provisions of this, the scale of the raising of the ecological environment and the residents around the threat to life. The threat to the surrounding ecological environment and residents' lives has been posed.
2, 2 9 pig farms in l 2 directly into the public **** pond or river sewage. The feces and urine deposited on the farms also seep into the groundwater as rainwater washes away.
3. Only 20% of the neighboring farmers drink tap water, and 72% draw water from their own wells. Drinking water from riverside springs accounted for 5%. Drinking water from public wells accounted for 3%: High concentrations of fecal and urine sewage not only deteriorate the quality of surface water, but can also cause harmful components to seep into the ground. Its harmful components seep into the ground and cause high nitrate content in the groundwater. Loss of use function. A direct threat to the farmers' drinking water safety.
4, high concentrations of fecal matter will make crops grow, fall, late or immature, resulting in reduced yields, can also lead to soil void blockage. The soil is clogged.
5, seriously affecting the daily life of residents, and easy to cause the spread of disease.
Solutions
1, should implement the "prevention-oriented, prevention and treatment";
2, the combination of economic and practicality;
3, management measures and technical measures;
4, effective utilization and comprehensive treatment;
5, the implementation of "source reduction, reduce resource depletion and pollution load, to achieve source emission reduction";
6, improve the efficiency of end-of-pipe treatment, to achieve stable discharge and "near-zero discharge", to prevent secondary pollution of the technical route.
Solution measures
Make full use of
Livestock and poultry farms in the existing conditions, biogas fermentation preparation of bioenergy, recovery of fertilizers and feed from sewage, sewage purification and reuse, the establishment of the "farm - swamp - fruit", "farm - swamp - fruit", "farm - swamp - fruit", "farm - swamp - fruit" and "farm - swamp - fruit". The recycled economy development model of "farm-marsh-fruit", "farm-marsh-fish" and "farm-marsh-vegetable" is established. It greatly reduces energy consumption, water consumption and overall operating costs. After treatment, COD, ammonia nitrogen, total phosphorus and other indicators can meet the national emission standards.
Adoption of process
Farm sewage - biogas digester - collection tank - solid-liquid separation - regulating tank - pre-aeration tank (pre-aeration tank is equipped with a front microbial generator) - front infusion rapid sedimentation tank - infusion aeration biofilter (infusion aeration biofilter is equipped with a rear microbial generator) - rear infusion rapid sedimentation, clean water sand filter disinfection tank - water reuse.
Main process introduction:
1, inflow aeration biofilter
The most suitable inflow aeration biofilter, inflow aeration biofilter fully draws on the aeration biofilter method, contact oxidation, biofilm method, interstitial aeration, artificial fast filtration, sedimentation and separation, nitrification, nitrification, fast filtration of water supply, and other eight design techniques, and combined with the secondary or tertiary wastewater treatment process and developed. Sewage treatment process and developed a new sewage treatment process, new technologies. Conductive aeration biofilter in China's Beijing, Shandong, Hebei, Guizhou, Shanxi, Sichuan, Inner Mongolia, Heilongjiang, Jiangsu, Jilin, Henan, Hubei, Tianjin, Xinjiang and other places there have been examples of projects, cases involving life, hospitals, chemical industry, slaughtering, food, flax, alcohol, pharmaceuticals, pickled vegetables and other areas of sewage treatment. A large number of applications have proved that: the effluent water quality CODcr is generally below 20mg / L, the lowest 5.95mg / L; BOD5 is generally below 10mg / L, the lowest 3.50mg / L; SS is generally below 20mg / L, the lowest 6.55mg / L.
Conducted aeration biofiltration tanks so that the sewage in the same treatment tank, to complete the two times of aeration, two times of sedimentation, two times of filtration, to solve the other sewage treatment In August 2009, it was listed as "Innovative Project" by the Ministry of Science and Technology of China; in December 2009, it was listed as "Catalog of Environmental Protection Technologies Encouraged by the State" by the Ministry of Environmental Protection of China; in May 2010, it was recognized as "National Key New Product" by the Ministry of Science and Technology of China, Ministry of Environmental Protection of China, Ministry of Commerce of China, and General Administration of Quality Supervision, Inspection and Quarantine of China. "National Key New Product"; in July 2012, it was listed as "Environmental Protection Technology Encouraged by the State" by the Ministry of Environmental Protection during the 12th Five-Year Plan period.2
2, microbial generator
Biological water purifier adopts three-stage generation, alternating operation, stage-by-stage derivation and microorganism generation, which is the most effective way to reduce water pollution.
The biological water purifier adopts three-stage generator, alternating operation, level by level derivation, logarithmic growth technology, resulting in the generator to produce microorganisms with a density of up to 1.8×1020CFU/ml, high density microorganisms released into the microbial purification and treatment equipment, microbial purification and treatment equipment, the biomass rapidly increased to more than 2.0×104 mg/L, the pollutants in the wastewater can be decomposed completely into CO2 and H2O, so as to purify the wastewater. get purified.
2, a wide range of adaptability
The equipment for the ideal sewage biological purification and treatment equipment, according to the different kinds of sewage treatment needs, different nature, different environments, to generate different populations of bacteria, different genera, different temperatures, different sewage treatment needs of microorganisms, especially suitable for urban sewage, rural sewage, medical wastewater, industrial wastewater, livestock and poultry wastewater, high salinity wastewater, high wastewater, high temperature, high wastewater treatment needs. It is especially suitable for the treatment of urban sewage, rural sewage, medical sewage, industrial wastewater, livestock and poultry wastewater, high salt wastewater, high ammonia wastewater, toxic and harmful wastewater, heavy metal wastewater, garbage leachate and other wastewater (sewage) treatment needs.
The equipment can also be directly matched with contact oxidation method, AB method, A/O method, oxidation ditch, SBR and other old wastewater treatment projects, under the condition of neither changing the wastewater treatment process nor altering the civil engineering, it can realize the upgrading and expanding of wastewater treatment, sludge reduction, denitrification and dephosphorization, and reuse of water for a variety of purposes. The equipment can also be used in landscape, river, lake, river, saltwater lake, bay, land and other fields to remove micro-pollution and protect the public **** environment.
3, outstanding economic benefits
The micro-device produces a high density of advantageous microbial flora, can quickly eat off the pollutants and sludge in the sewage, and does not produce a foul odor, without sludge dewatering machine, sludge transfer machine, mud cake outgoing car, exhaust gas treatment equipment and high-power blower aeration equipment, and the traditional method of comparing the energy consumption of the activated sludge method is 1/8, the investment in equipment can save Seventy percent, but also in the shallow pool on the operation, so that the sewage treatment tank volume is reduced, the depth of shallow, greatly reducing the cost of a one-time investment and long-term management costs.
4, easy to manage, safe and reliable
The equipment produces a high density of microbial flora through the jet stream into the treatment pool, can quickly reduce the biological oxygen consumption in sewage (BOD), chemical oxygen demand (COD) and solid suspended solids (TSS), and has a very strong function of denitrification and phosphorus removal, but also in a very short period of time so that the 5 types of water into more than 3 types, within 7 days to eliminate the The odor in the sewage, eat up about 50% of the sludge in the sewage in 10 days, degrade 20% of the BOD every day, and achieve the standard discharge or water reuse in 10-15 days.
The use of this equipment to treat sewage without the worry of sludge expansion, but also not subject to the age limit of the operator's education, easy to manage, safe and reliable.
5, no secondary pollution, creating a green environment
With the increasing incidence of high-density microbial flora, biological oxygen demand (BOD) in the sewage is also less and less, a large number of microorganisms due to the lack of BOD and the loss of energy to survive self-extinguishing into carbon dioxide and water, the micro-organisms not self-extinguishing can also become the bait of the fish and zooplankton, and thus the formation of a virtuous ecological Processing purification process, no odor, no sludge, no secondary pollution, creating a green environment.
6, not affected by climate, complete biochemical treatment
The use of traditional biochemical method of sewage treatment, affected by the climate and water temperature changes, when the temperature is reduced by 10 degrees per microbial enzyme reaction rate is reduced by 1-2 times, the climate leads to microbial activity is insufficient, resulting in poor sewage treatment, not only threatened by the northern sewage treatment plants, for the south in winter is also a severe test of the sewage treatment plant Treatment plant is also a severe Jun test, Guizhou Great Wall Environmental Protection Science and Technology Co., Ltd. production of patented products microbial purification and treatment equipment completely solved this problem, the generator system produces a high concentration of microbial flora released into the microbial purification and treatment system, its biomass interrogation rate of more than 2.0 × 104mg/L, so that the microbial purification and treatment equipment in the biological concentration of activated sludge compared to improve 10 times. It fills the technical problem of insufficient biomass and poor sewage treatment effect due to low water temperature.
7, to solve the lack of activity, to ensure that the water quality to meet the standards
The traditional biochemical treatment of high concentration, high ammonia nitrogen, high salt, toxicity, heavy metal wastewater, due to the microorganisms in these wastewater is less viable, the number of small, resulting in the sewage treatment of the effluent water quality is poor, the effect is unstable, and difficult to meet the standards of discharge. Microbial purification and treatment equipment in a unique way to completely solve this problem, the microbial generation system can produce 1.8 × 1020CFU / ml or more of the high concentration of microbial flora constantly sent to the microbial purification and treatment equipment, compared with other wastewater treatment to improve the biomass of more than 10 times, the powerful microbial flora to accelerate degradation of sewage pollutants in the degradation and digestion, and at the same time the microbial purification The oxygen supply of the reaction equipment significantly accelerates the decomposition of pollutants into CO2 and H2O, nitrate, sulfate become nutrients for microbial growth, so that microorganisms and further derivation, even if by the cold, low temperatures, the impact of the load impact, and the high concentration of ammonia and nitrogen, high salt, toxicity, heavy metal inhibition, can not stop the group of microorganisms competing in the front and back of the microorganisms to form a powerful lineup of the sewage treatment. Powerful array, and then degradation and digestion of pollutants in sewage, and ultimately realize the wastewater discharge or water reuse.
8, the innovation of micro-pollution management
Traditional river management can not be separated from the locks and dams, water breaks, siltation and other treatment processes, the project is costly, long duration, large amount of silt. Microbial purification and treatment equipment is installed directly upstream of micro-pollution sources such as landscape, rivers, lakes, rivers, saltwater lakes, bays, land, etc. It cuts off and plugs the source of pollution from the source and realizes thorough treatment through microbial degradation of pollution, sludge eating, removal of smell, phosphorus removal and denitrification, etc. It provides reliable equipment for micro-pollution treatment.
3, infusion rapid sedimentation tank
Wastewater flows downward, uniformly into the vertical sedimentation area of the infusion rapid sedimentation and separation equipment, so that the sludge in the sewage under the action of cohesion and gravity within the cohesion, with 4 times the sedimentation speed, the sludge is rapidly settled to the bottom of the infusion precipitation rapid separation equipment that is, the bottom of the bottom of the sludge through the sludge discharge system discharged to the sludge disinfection ate after the sewage infusion to the upward flow through the inclined settlement area, and then After the sewage is channeled, it passes through the slant settling area in an upward direction, and then with 8 times of the settling speed, the sludge is also discharged to the sludge disinfection tank through the mud discharge system, and after the sludge is disinfected, it is dewatered and transported out, and the wastewater generated in the process of dewatering is flowed back to the front part of the wastewater treatment tank for further treatment. The water separated quickly by infusion flows into the next process to continue processing, with the following characteristics:
a With all the advantages of advection sedimentation, vertical flow sedimentation, inclined tube sedimentation, inclined plate sedimentation, Ranmera sedimentation five philosophies, it is the most advanced sewage treatment sedimentation and separation equipment.
bThe vertical sedimentation area separates sludge and sewage at 4 times the sinking speed.
cThe vertical settling area separates sludge and sewage at 8 times the settling speed.
dThe sludge separated from the vertical and inclined sinking two zones automatically enters into the guided sinking zone and is automatically discharged into the disinfection tank for drying treatment.
eThe separated water automatically enters the next process for treatment.
Technical guidance contact information, you can contact QQ640763633.