Livestock and poultry breeding wastewater treatment equipment manufacturer Qianqiu Environment

The wastewater from pig farms has typical "three highs" characteristics, with CODcr as high as 3000-1200mg/l, ammonia nitrogen as high as 800-2200mg/l, and SS exceeding the standard by dozens of times. The large-scale treatment of livestock and poultry breeding wastewater has attracted high attention from pig farm owners and relevant departments. It is urgent to adopt a series of prevention and control measures and select economical and efficient treatment technologies. With the increasingly updated sewage discharge standards in some regions, the issue of high concentration pig wastewater meeting discharge standards has become more prominent.

The main problem with pig wastewater treatment lies in the treatment of feces. As long as the problem of feces is solved, the remaining wastewater can be purified using Shunchuang integrated wastewater treatment equipment.

Weifang Qianqiu EnvironmentThe use of pre-treatment methods in sewage treatment equipment can reduce the load of wastewater pollutants in subsequent treatment steps, while preventing large solids or debris from entering the subsequent treatment process, causing congestion or damage to the treatment equipment. For the large particle components in manure, pig farms can use solid-liquid separation technologies such as sedimentation, filtration, and centrifugation to achieve pretreatment. Common grids, sedimentation tanks, and sieves belong to this category.

For pig farm wastewater, it generally contains active ingredients that have inhibitory effects on biological bacteria and are difficult to degrade. Therefore, it is proposed to use the air flotation and biochemical treatment process to achieve the degradation and removal of organic pollutants in the wastewater through multi-stage treatment. The sewage flows into the regulating tank after removing large particles and fibrous impurities through the grille. Prevent impurities from settling and other effects.

Breeding wastewater is generally oily and fat containing wastewater from slaughtering animals, which contains various surfactants and washing aids such as phosphates, sulfates, carbonates, and other oils washed down. This type of wastewater generally does not contain toxic components, and its pH value is generally lower than that of alkaline degreasing wastewater. The oil washed off is mostly in an emulsified state, and when there are many oil stains, it also floats on the surface. The aquaculture wastewater treatment equipment using degreasing wastewater as the main cleaning agent can generally meet the discharge standards for wastewater treatment and achieve harmless treatment of aquaculture wastewater.

The working principle of aquaculture wastewater treatment equipment: The RBA series sewage treatment equipment mainly relies on the AO biological process in the equipment to remove organic pollutants and ammonia nitrogen. Due to the high concentration of organic matter in sewage, microorganisms are in a state of hypoxia. At this time, microorganisms are facultative microorganisms that convert and decompose organic nitrogen in sewage into NH3-N. They also use organic carbon as an electron donor to convert NO2-N and NO3-N into N2, and also use some organic carbon sources and NH3-N to synthesize new cellular substances So the * * * pool not only has a certain function of organic matter removal, reducing the organic load of subsequent aerobic tanks to facilitate nitrification, but also relies on the high concentration of organic matter in the raw water and the price of sewage treatment equipment in the breeding center to complete denitrification and ultimately eliminate nitrogen eutrophication pollution At level O, although the concentration of organic matter has significantly decreased, there is still a certain amount of organic matter and high NH3-N present In order to further oxidize and decompose organic matter, Chongqing aquaculture wastewater treatment equipment is equipped with aerobic biological contact oxidation tanks with low organic load at level O, which can smoothly carry out nitrification while carbonization is completed In the O-grade pool, aerobic microorganisms and self oxidizing bacteria (nitrifying bacteria) mainly use inorganic carbon produced by organic matter decomposition or CO2 in the air as a nutrient source to convert NH3-N in sewage into NO2-N and NO3-N, and ultimately eliminate nitrogen pollution through denitrification.

Livestock and poultry breeding wastewater treatment equipment manufacturer Qianqiu Environment

1、 Water flushing method

Having learned the methods from abroad, we use high-pressure water guns and leaky floors to mix manure and urine in the pigsty, discharge them into the sewage ditch, and enter the sewage collection tank. Then, we use a solid-liquid separator to separate the pig manure residue from the liquid sewage. The residue is transported to a specialized processing plant for processing into fertilizer, and the sewage is treated through anaerobic fermentation and aerobic fermentation. The characteristics of pigsty design are the use of leaky flooring, deep drainage ditches, and the construction of large capacity sewage treatment equipment on the outside;This plan is implemented in our country80Era90The era is particularly common in southern Guangzhou and Shenzhen, which is the first stage for China to learn from the experience of intensive pig farming abroad;Although this approach can save manual labor, its drawbacks are obvious, mainly:

① High water consumptionA large pig farm with 600 sows and an annual output of 10000 commercial pigs consumes 100-150 tons of water per day and discharges around 50000-70000 tons of wastewater annually.

② Discharged sewageCODTheBODHigh valueDue to the mixing of feces and urine in the pigsty before separation by a solid-liquid separator, the COD (chemical oxygen demand) of the sewage is between 13000-14000mg/L, the BOD (biochemical oxygen demand) is between 8000-9600mg/L, and the SS (suspended solids) reaches 134640-140000mg/L, making it difficult to treat the sewage.

③ The daily maintenance cost of treating sewage is highThe sewage pump needs to work day and night, and there should be a backup.

④ Large area of sewage treatment tankUsually requires 7-10 days of sewage discharge storage capacity.

⑤ The investment cost is also relatively highThe investment in sewage treatment usually reaches 40-70% of the investment in pig farms, that is, a pig farm with an investment of 5 million requires an additional investment of 2-3.5 million to treat sewage. Obviously, this technological route is not suitable for the current requirements of water and energy conservation, especially for pig farming in central and northern regions of China.

2、 Dry cleaning method

By using manual manure cleaning, the manure and urine are separated in the pigsty first, and then transported to the manure yard by hand cart for processing. The floor of the pigsty does not need to be cracked（Or use micro stitched flooring, gaps5mmwide)Use indoor shallow sewage ditches instead to reduce the amount of water used for floor flushing. Although this plan increases labor costs, it overcomes“Water flushing method”The shortcomings are manifested in:

① The daily water consumption of pig farms can be greatly reduced, which is generally comparable“Water flushing method”Reduce by two-thirds.

② Discharging sewageCODThe value is only based on the previous method75%左右，BODThe value is only based on the previous method40-50%，SSOnly the former method50-70%Wastewater is easier to treat.

③ The quality of organic fertilizer produced by this method is higher, and the income from organic fertilizer can be equivalent to paying the wages of manure cleaning workers.

④ The investment in sewage tanks is low, the land area is small, and the daily maintenance costs are low. Another important aspect of pig house design is to separate the sewage channel from the rainwater channel, which can greatly reduce the amount of sewage;Rainwater can be directly discharged into the river.

For someone with 600Annual production of head sow10000For pig farms, dry cleaning method can reduce the average daily amount of sewage compared to water flushing method100About tons, reducing sewage annually36500Ton, water price per ton2.3Yuan Ji, can save one year8.4Ten thousand yuan, the cost of treating one ton of sewage is about3yuan(Investment in sewage equipment100Ten thousand yuan,15Annual depreciation, annual operating expenses10Ten thousand yuan, annual sewage volume547500Ton meter), which can save the cost of sewage treatment10.95Ten thousand yuan. The total of two items is approximately20Ten thousand yuan is a considerable income.

Livestock and poultry breeding wastewater treatment equipment manufacturer Qianqiu Environment

3、 Fermentation treatment technology for pig manure

In recent years, a method of imitating ancient China has emerged“Fill in pig farming circles”of“Fermented pig farming”Technology is being introduced to some southern regions of China for experimentation by some scholars and businesses from Japan. This method mixes short straw, wheat straw, sawdust and other straw with pig manure and specific fermentation bacteria, and spreads them on the ground for weaning piglets or large groups of pigs(40-80head/group)Scattered on top and added to pig feed at the same time0.1%Specific bacterial strains. Pig manure and urine are naturally decomposed by fermenting bacteria on this filling material, with no odor. The filling material is fermented, generating heat, and the ground is warm and soft, protecting pig hooves. Continuously adding fillers in the future,1-2Clean once a year. The resulting filler is a good fertilizer. Only in summer, due to the high ground temperature, pigs do not like to sleep in the filling area and need to choose another place to sleep while spraying water. This is a method currently under research. If successful, it can greatly save labor, investment, and equipment.

Characteristics of integrated sewage treatment equipment:

The manhole of the integrated domestic sewage equipment must be covered to prevent accidents or large solid substances from falling in; At the same time, danger warning and protective signs should be set up near the manhole of the integrated sewage treatment equipment.

The entire equipment processing system is equipped with a fully automatic electrical control system and equipment fault alarm system, which operates safely and reliably. Generally, there is no need for dedicated personnel to manage it, and only timely maintenance and upkeep of the equipment is required.

Process of sewage treatment equipment:

Wastewater treatment technology can be divided into primary, secondary, and tertiary treatment according to the degree of treatment,

The degree of sewage treatment is generally determined based on the water quality condition and the destination of the treated water.

Wastewater - Anaerobic hydrolysis tank - Anaerobic filtration tank - Oxidation ditch - Improved septic tank with effluent, the process flow is as follows: 4 Non consumptive underground small-scale domestic sewage device

Anshun aquaculture wastewater treatment equipment price integrity service, main components: 1. hydrolysis acidification tank; 2. Contact oxidation tank; 3. Impurity sedimentation tank; 4. Disinfection treatment; 5. Aerobic sludge digestion tank. The main treatment method is to use biochemical treatment technology and contact oxidation method. The design of the integrated domestic sewage treatment equipment mainly calculates the water quality parameters of domestic sewage and similar industrial organic sewage treatment according to the general domestic sewage water quality, and calculates the influent BOD5 at 200mg/L. Application field

Performance characteristics: A composite disinfectant mainly producing chlorine dioxide as a supplement, with a CLO2 content greater than 75% based on effective chlorine; The raw material transportation adopts flowmeter dosing, which is easy to operate, accurate in feeding, not prone to blockage, and runs stably.

3. Physical properties of boiler dust collector bag: such as the unit area mass, thickness, amplitude of the bag, the organization and density of the woven fabric, the bulk density of the non-woven fabric, porosity, etc. 2. Special functional characteristics of boiler dust collector bag: such as temperature resistance, corrosion resistance, electrostatic properties, hydrophobicity, etc. 1. Appearance inspection of boiler dust collector bag: black spots, jumpers, punctures, defects, broken wires, joints, etc. Five points for regular testing of boiler dust collector bags

The so-called filtration accuracy refers to the aperture of the pre filter mesh. For example, a product with a filtration accuracy of 40 μ m has a mesh aperture of 40 μ m, which can intercept impurities with a diameter greater than 40 μ m. 40 μ m is approximately half the diameter of a human hair. So, what filtering precision should we choose for our products? In principle, products with higher accuracy (smaller values) are better, but according to actual needs, products with accuracy of 30-50 μ m are common, and products with accuracy greater than 100 μ m have less obvious filtering effect. 2、 How to choose the filtering accuracy?

Buried below the ground surface, the surface above the equipment can be used for greening or other purposes, without the need for building houses, heating, or insulation.
2. The secondary biological contact oxidation treatment process adopts push flow biological contact oxidation, which has a better treatment effect than mixed or two-stage series mixed biological contact oxidation tanks. And it has a smaller volume than activated sludge tanks, strong adaptability to water quality, good shock load resistance, stable effluent quality, and will not cause sludge expansion. A new type of elastic three-dimensional packing material is used in the pool, with a large specific surface area and easy biofilm formation and detachment by microorganisms. Under the same organic load conditions, it has a high removal rate of organic matter and can improve the solubility of oxygen in the air in water.
3. The biochemical tank adopts the biological contact oxidation method, which has a relatively low volume load of the filling material, and the microorganisms are in their own oxidation stage, resulting in low sludge production. It only takes more than three months (90 days) to discharge the sludge (using fecal trucks to suction or dehydrate into sludge cakes for external transportation).
4. The entire equipment processing system is equipped with a fully automatic electrical control system, which operates safely and reliably. Generally, there is no need for dedicated personnel to manage it, only timely maintenance and upkeep of the equipment is required.
5. The sewage treatment equipment is composed of steel structure and adopts AO treatment process. It adopts * anti-corrosion technology to make the equipment resistant to acid, alkali, salt, gasoline, kerosene, etc., aging and abrasion, with a designed anti-corrosion life of more than 30 years.
Scope of application:
Hotels, restaurants, sanatoriums, hospitals; Residential communities, villages, and towns; Stations, airports, seaports, and ships; Factories, mines, tourist attractions, scenic spots; Various industrial organic wastewater similar to domestic sewage.
New process of Woke sewage treatment equipment
How many methods of using buried domestic sewage treatment equipment? Capable of treating comprehensive wastewater from living systems and similar organic wastewater; It is made of glass fiber reinforced plastic and stainless steel, and has excellent characteristics such as corrosion resistance and aging resistance, with a service life of more than 50 years;? The complete set of equipment is simple to construct and easy to operate. All mechanical equipment is automatically controlled, and all devices can be installed on the ground.