The technical research on advanced treatment and reuse of petrochemical sewage

At present, many countries in the world are facing serious water crisis, the shortage of water in our country is particularly prominent, especially refining industry, water shortage and water pollution problems in our country have seriously affected the survival of enterprises and sustainable development. In this paper, based on literature research and field investigation, two stage discharging sewage of some petrochemical company was as our object. Feasibility research on the deep treatment and process unit effectiveness analysis was carried on, then a biological aerated filter and reverse osmosis system was put forward as the core (biological aerated filter-and inclined plate sedimentation-walnut shell filter-more medium filter-Filter-reverse osmosis systemsodium ion exchanger). The original process is very complicated and lengthy, but the new has a very strong special aim and a good impact resistance capacity, more reasonable process and more advanced technology.