Biochemical treatment of wastewater

waste

1. What is the biochemical treatment of wastewater?

Biochemical treatment of wastewater is one of the most important processes in wastewater treatment system. Biochemical treatment is to effectively remove soluble organic matter and some insoluble organic matter in wastewater by using microbial life process, so that the water can be purified. In fact, we are not very strange to biochemical treatment, there is a food chain in the natural water body, that is, big fish eat small fish, small fish eat shrimp, shrimp eat insects, insects eat microbes, microbes eat sewage, if there is no this food chain, the nature will be in chaos. In natural rivers, there are a large number of microorganisms that live on organic matter. They oxidize or reduce the organic matter (such as industrial wastewater, pesticides, fertilizers, feces and other organic matter) that people discharge into the river day and night, and finally convert it into inorganic matter. If there are no microorganisms, the rivers around us will take at least a few months, more than one or two years. It's just that the microbes are too small and scattered to be visible to the human eye. The biochemical treatment engineering of wastewater is the strengthening of this process under artificial conditions. People will be countless microorganisms all concentrated in a pool to create a very suitable environment for microbial reproduction and growth (such as temperature, pH value, oxygen, nitrogen and phosphorus and other nutrients), so that microorganisms proliferate in large numbers, in order to improve the speed and efficiency of decomposition of organic matter. Then the wastewater is pumped into the pool, so that the organic matter in the wastewater can be oxidized and degraded in the process of microbial life activities, so that the wastewater can be purified and treated. Compared with other treatment methods, biochemical method has the characteristics of low energy consumption, no dosing, good treatment effect and low treatment cost.

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