Environment-friendly treatment system and treatment method for various waste sewage

Abstract

The invention discloses an environment-friendly treatment system for various waste sewage. The system comprises a fine grid and water inflow pump room, a coarse grid and dosing room, an aerated grit basin, an adjusting hydrolysis tank, a biological tank, a tertiary sedimentation tank, an ultraviolet disinfection room and a water quality detection room; the sewage is subjected to solid-liquid separation through different grid sedimentation tanks, so that larger solid floating objects and gravels in the sewage can be removed; the sewage is discharged into the adjusting hydrolysis tank to be heated, the oxygen content in the water is reduced, some aerobic macromolecular long-chain pollutants which are difficult to degrade in the sewage are decomposed into small-molecular short-chain pollutants; nitrification liquid is put into an anaerobic zone, so that nitrogen and phosphorus are effectively removed, the micromolecules in the sewage can be decomposed and purified; the sewage is subjected to sedimentation and is subjected to sterilization and disinfection through ultraviolet rays; water quality is detected, and the sewage is discharged after reaching the discharge standard; and thus, the influence of sewage discharge on the environment can be avoided, water can be recycled, and water resources and water use cost are saved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an environmental protection treatment system and a treatment method containing various waste sewage. Background technique [0002] In life, sewage can be seen everywhere. Whether it is domestic sewage or industrial production sewage, the amount is particularly large. If sewage treatment is not carried out, direct discharge will directly affect the ecological environment and destroy the ecological chain. According to the national discharge standards, sewage must be purified. Discharge can only be carried out when the discharge standard is met. The traditional sewage treatment method is to sterilize the sewage with ultraviolet light, and then add drugs to neutralize it to achieve the effect of purifying the sewage. However, for some microorganisms in the sewage, it is impossible to rely solely on ultraviolet light to sterilize. If it is completely killed and decomposed, th...

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Problems solved by technology

[0002] In life, sewage can be seen everywhere. Whether it is domestic sewage or industrial production sewage, the amount is particularly large. If sewage treatment is not carried out, direct discharge will directly affect the ecological environment and destroy the ecological chain. According to the national discharge standards, sewage must be purified. Discharge can only be carried out when the discharge standard is met. The traditional sewage treatment method is to sterilize the sewage with ultraviolet light, and then add drugs to neutralize it to achieve the effect of purifying the sewage. However, for some microorganisms in the sewage, it is impossible to rely solely on ultraviolet light to sterilize. Completely killed and decomposed, the purification effect cannot reach the best

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