The common treatment methods for animal husbandry water: The basic method for wastewater treatment is to use animal husbandry water treatment equipment to separate, remove, and recycle pollutants in the wastewater, so as to purify the water. There are many methods for sewage treatment, which can generally be divided into four categories: biological treatment, physical treatment, chemical treatment, and natural treatment.

1. Biological treatment

Through the metabolism of microorganisms, organic pollutants in solutions, colloids, and micro suspensions are transformed into stable substances. According to the different microorganisms, biological treatment can be divided into aerobic biological treatment and anaerobic biological treatment.

2. Physical processing

The physical separation and recovery methods for insoluble suspended pollutants (including oil films and oil droplets) in wastewater can be divided into gravity separation method, centrifugal separation method, and screening filtration retention method. The re selection method processing unit includes sedimentation, flotation (air flotation), etc., and the corresponding processing equipment includes sedimentation tank, sedimentation tank, oil separation tank, air flotation tank and its accessories, etc; The centrifugal separation method itself is a treatment unit, and the livestock and breeding water treatment equipment used includes centrifugal separators, water cyclone separators, etc; The screening and filtration interception method includes two processing units: screening interception and filtration. The former uses processing equipment such as grids and sieving, while the latter uses sand filtration and microporous filtration. The processing method based on the principle of heat exchange also belongs to physical processing methods, and its processing units include evaporation, crystallization, etc.

3. Chemical treatment

A wastewater treatment method that separates, removes, or converts dissolved and colloidal pollutants into substances through chemical reactions and mass transfer. In chemical treatment, the treatment units based on the chemical reactions generated by adding reagents include coagulation, neutralization, oxidation-reduction, etc; The treatment units based on mass transfer include extraction, stripping, stripping, adsorption, ion exchange, electrodialysis, and reverse osmosis. Unit, also known as membrane separation technology. The treatment unit that uses mass transfer has both chemical and physical effects, so it can also be separated from the chemical treatment method and become another treatment method, namely the physicochemical method.

4. Natural processing

Utilize nature (natural water, soil, etc.) to exert the self purification effect of sewage. Including land treatment systems and aquatic plant treatment systems. Common treatment methods include biological ponds, soil treatment, and artificial wetland treatment. Oxidation pond is a natural or artificial sewage biological treatment pool. Wastewater stays in ponds for a long time, and microorganisms in the water can metabolize and degrade organic pollutants. Dissolved oxygen is achieved through the photosynthesis of algae and the reaeration of pond surfaces, which can greatly reduce organic pollutants in water, remove nitrogen and phosphorus, and reduce eutrophication of water bodies.

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