Treatment method for sewage in sewage tank

Abstract

The invention relates to a treatment method for sewage in a sewage tank. The treatment method is characterized by comprising the following steps of: storing collected sewage into the sewage tank; thenadding a flocculating agent into the sewage tank; after sufficiently precipitating, conveying the sewage in the sewage tank into an inclined plate sedimentation tank and carrying out secondary sedimentation; then putting the precipitated sewage into a hornwort planting pool; after standing for a period of time, discharging the sewage into a concentration tank; then adding a sewage treatment chemical agent into the concentration tank and sufficiently mixing the sewage treatment chemical agent and the sewage; carrying out final sedimentation and discharging precipitated water into an oxidization tank; adding an oxidant into the oxidization tank and standing for a period of time; then conveying the sewage into a filter press and carrying out filter pressing treatment; then carrying out filtering treatment on the treated sewage through a zeolite layer and an activated carbon fiber filtering screen to obtain purified water finally. Compared with the prior art, the treatment method providedby the invention has the advantages that the purification effect is good and the purification efficiency is high.

Description

technical field [0001] The invention relates to the technical field of sewage purification, in particular to a treatment method for sewage in a sewage pool. Background technique [0002] With the development of the economy, the widespread use of pesticides and chemical fertilizers, and the increase in the discharge of industrial sewage, a large amount of nitrogen and other biological nutrients are continuously discharged into rivers and reservoirs, which accelerates the degree of euoxidation of water bodies. At present, China's industrial pollution discharge is large and the effective treatment rate of sewage is low, water pollution is serious, and the treatment is difficult to meet the national standard. Although China has taken a large number of measures to solve the problem of industrial pollution, there are high infrastructure construction costs and operating costs in terms of technical equipment. The treatment efficiency needs to be improved, and the filter residue afte...

AI Technical Summary

Problems solved by technology

[0002] With the development of the economy, the widespread use of pesticides and chemical fertilizers, and the increase in the discharge of industrial sewage, a large amount of nitrogen and other biological nutrients are continuously discharged into rivers and reservoirs, which accelerates the degree of euoxidation of water bodies. At present, my country's industrial pollution discharge is large and the effective treatment rate of sewage is low, water pollution is serious, and the treatment is difficult to meet the national standard. Although my country has taken a large number of measures to solve the problem of industrial pollution, there are high infrastructure construction costs and operating costs in terms of technical equipment. The treatment efficiency needs to be improved, and the filter residue after the sewage treatment agent treats the sewage can only be landfilled, which not only causes a waste of resources, but also produces new domestic garbage. With the continuous improvement of people's living standards, the quality of sewage is also increasing. Constant changes are taking place. The waste water produced by life and some illegally discharged sewage will eventually flow to the municipal sewage treatment project. The debris and nitrogen and phosphorus content in the municipal sewage are relatively large, and the sewage treatment needs to meet the discharge standard before it is allowed to be discharged. Now The sewage treatment method is cumbersome and complicated, and the efficiency is relatively low