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The sewage treatment equipment of the farm adopts the physicochemical + biochemical treatment process, the wastewater enters the pH adjustment tank after separating most of the feces with a mesh belt grid through coagulation, and the pH of the wastewater is adjusted to 10-11 with lime, and the excess lime and sewage are removed by flotation through the distribution tank to the air flotation machine, and the aeration blows to remove the free ammonia nitrogen, and the excess calcium ions in the water generate calcium carbonate precipitation. Weifang Tianyuan Environmental Protection Technology Co., Ltd. was established in 2005 and has more than 10 years of experience in sewage treatment. Adhere to the high-tech service to customers, with superior environmental protection product quality to win the trust of users, the main production of air flotation equipment, industrial sewage treatment equipment, domestic sewage treatment equipment, hospital sewage treatment equipment, slaughtering sewage treatment equipment, buried integrated sewage treatment equipment, industrial wastewater treatment equipment, food sewage treatment equipment 、...
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The most important thing is to reduce the organic matter of sewage, first use the breeding ammonia egg enzyme experiment to see the treatment effect, and then decide to design and ordinary sewage equipment. After the pretreatment of ammonia egg enzyme, it can generally be treated in the earth, and at the same time eliminate the odor of ammonia, decompose most of the organic matter, and the treatment is not thorough, and the sewage treatment equipment is small.
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Different regions have different requirements, and now they generally require land procedures (lease certificate or self-owned land certificate), meet environmental protection requirements, (such as not being able to breed in population gathering places, off the highway and other transportation lines), and meet the requirements for animal breeding epidemic prevention.
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What to do with the sewage from animal husbandry.
What to do with the sewage from animal husbandry.
Farm sewage treatment and aquaculture industry is an important industry for China's rural development. In recent years, with the continuous expansion of the scale of breeding, the sharp increase in the number of breeding, so that a large number of livestock and poultry breeding wastewater has become a source of pollution, if the sewage produced by these farms is not treated in time, it will cause great harm to the environment, resulting in the deterioration of the ecological environment, the quality of livestock and poultry products decline and endanger human health, the lag of aquaculture wastewater treatment technology will seriously restrict the sustainable development of the aquaculture industry. According to the "2000 National Large-scale Livestock and Poultry Breeding Industry Pollution Investigation Report", China's livestock and poultry manure production is very large, the total amount produced in 1999 is about 1.9 billion tons, which is twice that of industrial solid waste, and the COD emission of livestock and poultry manure has reached 71.18 million tons, far exceeding the sum of industrial wastewater and domestic wastewater COD discharge.
In response to the pollution of livestock and poultry breeding, China has successively issued the "Livestock and Poultry Breeding Pollutant Discharge Standard" (GB18596-2001) and the "Technical Specification for Pollution Prevention and Control of Livestock and Poultry Breeding".
What to do with the sewage from animal husbandry.
1. The average residence time of contact oxidation method is more than 6 hours;
2. It has the ability of denitrification and phosphorus removal, and can achieve the ability to treat industrial wastewater, aquaculture sewage and urban sewage by adjusting the structure of the equipment;
3. Most of the fillers in the contact oxidation tank are combined soft fillers, which are lightweight, high strength, stable physical and chemical properties, large specific surface area, strong biofilm adhesion ability, and high contact efficiency between sewage and biofilm;
4. The aerator is used for blast aeration in the contact oxidation tank, so that the fiber bundle is constantly floating, the aeration is uniform, and the microorganisms grow and mature, which has the characteristics of activated sludge method;
5. The effluent quality is stable, the sludge output is small and easy to treat;
6. The submersible pump can be set up in the equipment to reduce the engineering investment;
7. The equipment can be located on the ground or buried underground. When buried in the ground, the upper part can be used for greening, the plant covers a small area, and the ground structure is few;
8. It is easy to complete automatic control, simple management and operation.
9. The equipment can be connected to the car to make a mobile integrated sewage treatment equipment.
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Hello, aquaculture wastewater is rich in a large number of pathogens of high concentration of organic wastewater, direct discharge into the water or storage location is not suitable, breeding manure and farm flushing water leaching is very strong, fecal urine nitrogen, phosphorus and water-soluble organic matter and other leaching is very large, if not properly treated, it will be through surface runoff and percolation into the groundwater layer to pollute groundwater.
The sewage first enters the pH conditioning tank, and then enters the pre-aeration tank for blast aeration and partial blowing. After that, the wastewater enters the buffer tank through self-flow, and one lifting pump is set in the buffer tank for the lifting of air flotation machine sewage. The air flotation adopts a advection air flotation device, and the water from the air flotation machine enters the regulating tank, and one sewage pump is installed at the end of the regulating tank to lift the water into the anaerobic tank.
The wastewater flows to the aerobic tank after the anaerobic tank, and then flows to the sedimentation tank after the aerobic tank, and the effluent from the sedimentation tank is lifted to the air flotation device for deep retreatment by the pump, and then enters the disinfection tank and is discharged to the standard after being disinfected by the disinfection device. Sewage treatment equipment.
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。。Reduced effluent production.
Farm wastewater treatment is expensive, and the more wastewater you treat, the more money you invest, which makes many farms struggling. In fact, many farms ignore a problem when treating sewage and reduce the output of sewage. Many farms have caused a large amount of sewage to be curbed due to cost control, management negligence or farming habits.
1.Improve and maintain drinking water equipment: some farms drinking water equipment is old, in disrepair, drinking water equipment has running water, leakage, water, dripping, etc., drinking water equipment leakage problem is one of the main reasons for more chicken farm sewage, so to control the sewage problem of old farm drinking water equipment to upgrade is the procedure to go.
Usually do a good job in the inspection and maintenance of drinking water equipment, if there is a water leakage, water running, should be repaired in time.
2.Change the habit of washing the chicken house: Some farms will use clean water to clean the manure in the chicken house, although this cleaning is very clean, but it produces a lot of sewage.
Minimize the frequency of washing the chicken house with water, when the budget of the chicken farm is insufficient, you can spread bedding (containing fermentation bacteria) on the ground of the chicken house, which can not only reduce the trouble of cleaning the chicken house, reduce the generation of sewage, but also make the chicken manure ferment, which is convenient for subsequent treatment. If the chicken farm has sufficient capital budget, it can install automatic manure cleaning equipment - manure scraper, which can also reduce the generation of sewage.
3.Improve the drainage system: the chicken farm should do a good job of rain and sewage diversion, and the drainage pipe and sewage pipe should be constructed separately without affecting each other, which can effectively reduce the generation of sewage.
Second, the second step to solve the problem of sewage treatment in farms: multi-pronged, layer by layer purification.
Farm sewage needs to be purified to the national standards before it can be discharged to the external environment, the substances that need to be treated include organic matter, nitrogen-containing compounds, heavy metal ions, drug residues, etc., the treatment of the above substances is not a two-process can be completed, a variety of treatment processes are needed to purify layer by layer, in order to solve the problem of sewage treatment.
1.Physical treatment method: the use of grid, filter screen or septic tank for pre-physical treatment to remove suspended solids and sediment, which can effectively filter out more than 50% of the solid matter in the sewage.
2.Chemical treatment method: using the principle of chemical reaction, the purpose of treating sewage is achieved by adding some preparations, such as ferric chloride, aluminum sulfate, ferrous sulfate and other coagulants to precipitate suspended solids and colloidal substances in sewage.
3.Microorganisms add activated sludge containing bacteria and microorganisms to the sewage, and at the same time add air to the sewage, and the activated sludge achieves the purpose of purifying the sewage through physical adsorption and biodegradation. The biofilm method can also be used to treat sewage, which is composed of a biological filter, a biological turntable, a biological contact oxidation tank and a biological fluidized bed, etc., and the working reason is to make the sewage pass through a layer of filter material filled with biofilm on the surface, and treat the sewage through the degradation and oxidation of a large number of microorganisms.
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The environment of the farm includes the internal environment and the external environment of the farm, and the environment of the control farm mainly includes two aspects: one is to control the environment of the farm from the outside world and pollution; The second is to prevent the farm from causing adverse effects and pollution to itself and the surrounding environment. The pollution of the farm to the environment includes toxic and harmful gases, dust, pathogenic microorganisms, noise, organic matter and minerals that are not digested and absorbed by animals.
The environmental protection of the farm is closely related to the safety, quality and impact of the aquaculture products on the surrounding environment.
1. What is the farm environment
1. The environment of the farm includes the internal environment and the external environment of the farm, and the environmental control of the farm mainly includes two aspects: one is to control the environment of the farm from the outside world and pollution; The second is to prevent the farm from causing adverse effects and pollution to itself and the surrounding environment. The environmental protection of the farm is related to the safety, quality and impact of the surrounding environment.
2. The pollution of the farm to the environment includes toxic and harmful gases, dust, pathogenic microorganisms, noise, organic matter and minerals that are not digested and absorbed by animals, etc., and the main reason is that the breeding manure is not properly treated, wanton discharge, polluting the environment, whether the odor is controlled, and has an impact on the surrounding environment. Aquaculture manure includes livestock and poultry manure, waste bedding and bedding, production and domestic sewage, etc. With the development of society, the environmental pollution caused by traditional farming has become one of the most prominent problems in rural farming.
Second, how to deal with the sewage of the farm
1. Physical treatment method.
The physical action is used to separate the solid pollutants in the suspended state in the sewage, such as the physical treatment of the screen, filter screen or septic tank in the early stage to remove the suspended solids and sediment. The main methods include sieve filtration, precipitation, floating, air flotation, filtration, reverse osmosis, etc.
2. Chemical treatment method.
The purpose of treating sewage is achieved by adding some preparations, such as ferric chloride, aluminum sulfate, ferrous sulfate and other coagulants to precipitate suspended solids and colloidal substances in sewage. The main methods include neutralization, coagulation, electrolysis, redox, stripping, extraction, adsorption, ion exchange electrodialysis, etc. This method is mostly used to treat production wastewater.
3. Biological treatment method.
The metabolic action of microorganisms is used to convert the organic pollutants in the dissolved and colloidal state of sewage into stable and harmless substances, so as to achieve the purpose of purifying sewage. The main methods can be divided into two categories: one is the aerobic method using aerobic microorganisms (aerobic oxidation); The second is the anaerobic method (anaerobic reduction method) that uses the action of anaerobic microorganisms.
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Hello, first of all, the sewage treatment of the farm is very different from the domestic sewage treatment method, such as the sewage treatment process of the farm: 1. Physical treatment method. The effect of physical treatment of sewage is not particularly ideal, but it is very worthy of reference for partners in small-area farming.
It is mainly through the septic tank and the filter screen and other can be used to filter or precipitate sewage and filter out of the suspended solids in the sewage out of a treatment method, its defect is that there are still a lot of residual pollutants, need to be further treated later, otherwise it is not up to standard. 2. Chemical treatment methods. The chemical treatment method is mainly a chemical used to dissolve substances or coagulate pollutants based on the composition of pollutants in sewage.
The most common of these is the use of chloride for water disinfection, such as pouring ferric chloride into sewage to condense impurities to purify water quality. It treats wastewater to a much more thorough extent than physical treatment, but it can also produce other pollutants and is much more expensive than physical treatment. 3. Biological treatment methods.
The biological treatment method of sewage is the most environmentally friendly, the most thorough and the most costly way, it is actually the use of microorganisms to decompose pollutants in sewage to achieve the effect of purifying water quality, although the sewage originally contains microorganisms, but because their activity has basically disappeared after pollution, so we need to introduce microorganisms. The only disadvantage is that it takes a long time to purify, so it is necessary to buy active agents and nutrient solutions that promote microbial activity, which can speed up their decomposition. 4. Other treatment methods.
There are many other treatment methods for farm wastewater, such as activated sludge treatment, biological filtration, biological stratification, ordinary filtration, ordinary coagulation and ditch raising method, etc., which can also be used in many cases. There are also differences in domestic sewage treatment, such as: 1. Physical treatment method
Uses physical action to treat, separate and ** pollutants in wastewater. For example, the precipitation method removes suspended solids with a relative density greater than 1 in water, and the filtration method can remove suspended solids in water. 2. Chemical treatment method.
Utilize chemical reactions or physicochemical reactions to treat soluble wastes or colloidal substances. For example, redox methods are used to remove reducing or oxidizing pollutants from wastewater and kill pathogenic bacteria in natural water bodies. 1. Physical treatment method.
Uses physical action to treat, separate and ** pollutants in wastewater. For example, the precipitation method removes suspended solids with a relative density greater than 1 in water, the filtration method can remove suspended solids in water, and the evaporation method is used to concentrate non-volatile and soluble substances in wastewater. 2. Chemical treatment method.
Utilize chemical reactions or physicochemical reactions to treat soluble wastes or colloidal substances. For example, redox methods are used to remove reducing or oxidizing pollutants from wastewater and kill pathogenic bacteria in natural water bodies. 3. Biological treatment method.
The biochemical action of microorganisms is used to treat organic pollutants in wastewater. For example, biological filtration and activated sludge are used to treat domestic sewage or organic production wastewater, so that organic matter can be converted and degraded into inorganic salts and purified. 4. Biological contact oxidation method:
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