Pig farms generate a large amount of fecal and flushing wastewater during the breeding process, which contains high concentrations of harmful substances such as organic matter, ammonia nitrogen, suspended solids, etc. Direct discharge can pollute water bodies and pose a threat to human health and the environment. Therefore, integrated pig farmsWastewater treatment equipment is particularly important.

Integrated pig farm wastewater treatment equipment treatment process flow:

Based on the characteristics of wastewater discharge, water quality, and required discharge requirements, the process is divided into three parts: firstly, pretreatment, which removes suspended solids and floating oil from the water, reduces the load of subsequent treatment, and prevents blockage of subsequent treatment (especially biochemical treatment) unitsAnd affect the processing effect, using physical and chemical methods; The second is biochemical treatment, which is the core of the entire treatment process. Through the metabolic action of microorganisms, dissolved organic matter in wastewater is decomposed; The third is deep treatment, which uses physical and chemical methods to further remove pollutants from waterStaining to ensure that the effluent meets the discharge standards.

1. Preprocessing

Regardless of the process or comprehensive measures used to treat livestock and poultry breeding wastewater, certain pre-treatment measures must be taken. Pre treatment can reduce the pollutant load of wastewater and prevent large solids or debris from entering the subsequent treatment process, causing equipment blockage orDestruction, etc. For large particles or substances that are prone to settling in wastewater, the livestock and poultry breeding industry uses solid-liquid separation technologies such as filtration, centrifugation, and sedimentation for pretreatment. Commonly used equipment includes grids, sedimentation tanks, and sieves.

2. Biochemical treatment

The biochemical treatment of aquaculture wastewater mainly includes contact oxidation method, AB method, A/O method, oxidation ditch SBR、 Aerated biological filter, guided aeration biological filter, etc. The guided aeration biological filter is a new sewage treatment process with independent intellectual property rights in China.

3. Deep processing

Deep processing is the purification process for pollutants that cannot be removed by biochemical treatment. Deep processing is usually composed of optimized combinations of processing units such as coagulation and sedimentation, membrane technology, etc.

The coagulation sedimentation method is a wastewater treatment technology that involves adding coagulants to wastewater to destabilize the colloids and fine suspended solids, and aggregate them into alum flowers ranging from hundreds of micrometers to several millimeters, which can then be removed through gravity settling or other solid-liquid separation methods.

Membrane separation method is a technique that uses special thin films to selectively separate components in liquids. Membrane separation technologies used for wastewater treatment include diffusion dialysis, electrodialysis, reverse osmosis, ultrafiltration, microfiltration, and several others.

Technical parameters of integrated pig farm sewage treatment equipment:

Advantages of integrated pig farm sewage treatment equipment:

The advantages of animal manure treatment machines include low speed, small size, easy operation, convenient installation, low cost, high efficiency, and no need for additives; The pig farm wastewater treatment machine adopts a high-strength spiral shaft, corrosion-resistant alloy double spiral blades, and stainless steel filter screensTo extend the service life of the equipment. For the treatment of pig farm wastewater, the pig manure water is first sent to the pig manure dewatering machine using a submersible pump. The waste liquid slurry is compressed and pushed to the front of the machine, continuously increasing the pressure at the leading edge, so that the water in the waste liquid to be treated is compressed in the edge pressure zoneFilter out under the action of filtration. The fecal dewatering machine is continuous, and the waste material is continuously lifted into the body. The pressure at the front end keeps increasing. When the pressure reaches a certain level, it automatically opens the discharge port and squeezes out the material, thus achieving the purpose of squeezing out the material.