1, according to query Zhaotong city government official website shows: yanjin county sewage treatment plant was constructed in 2011, the design scale of 50,000 cubic meters / day, the first daily scale of treatment to reach 50,000 cubic meters / day, the project investment of nearly 44.35 million yuan.
2, sewage refers to a certain amount of pollution from the life and production of the discharged water, the loss of the original use of water is referred to as sewage. Mainly life on the use of water, which contains more organic matter, easier to deal with.