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Microbial biochemical method, wastewater treatment, application

Newstime£º2017-06-14

It is The new supersedes the old. by microorganisms in sewage treatment, sewage organic matter absorption, transformation or by oxidation decomposition, precipitation etc. removal of pigment, heavy metals and other pollutants to purify the effect. It is also a major factor that can not be ignored in strengthening water purification. Here is another biochemical method that is different from the chemical treatment of ferrous sulfate.

Application of biochemical method in wastewater treatment

Treatment can be divided into aerobic and anaerobic microorganism method respectively by aerobic bacteria and anaerobic bacteria or facultative bacteria in aerobic biological The new supersedes the old. and anoxic conditions after pollutants after biochemical or biological flocculation effect to digest converted or separated. Aerobic biochemical method can be divided into activated sludge process, biofilm process, oxidation pond and so on, while anaerobic biochemical treatment is mainly used in organic sludge and high concentration organic wastewater treatment.

To prevent water temperature, pH value and chemical agents on microbial growth and injury. Generally, before biochemical treatment, the equipment regulates the pool, regulates the water quality and water quantity, and then adds the ferrous sulfate or the polymerized ferric sulfate to the biochemical treatment.

In wastewater treatment, BOD is used to indicate the concentration of biodegradable organic matter, which refers to the amount of oxygen consumed by microorganisms to decompose organic matter in sewage. Therefore, in wastewater treatment, biochemical method is used to remove BOD, which is an economical organic removal method.

After the removal of microbial waste water, there are still residual pollution related substances, and can not be completely removed. Therefore, the combination of physicochemical treatment after biochemical treatment is also a better reason for improving the effectiveness of wastewater treatment.