The Research And Practice Transformation Of Sewage Technology In Shinan Sewage Treatment Station

Along with the continuous development of Shengli Oilfield,the average overall water of the produced fluid in oil wells has reached more than 90%,the sewage treatment continued to increase the size and increasing difficulty of wastewater treatment,which to oilfield sewage treatment technology put forward higher requirements.Therefore,the domestic and foreign oil field sewage treatment technology and the status quo,as well as the future trend of development of a full investigation,compared with the oil field commonly used in sewage treatment.In the full understanding of Shinan oilfield sewage treatment status based on,in view of the history of South wastewater with high salinity,low pH,the scaling tendency of strong,unstable quality etc.characteristics,this paper expounds the oilfield produced water processing technology and reform measures,for oilfield sewage treatment has opened up a new technology route.Determine the sewage system transformation with a stable water quality,scaling control to deal with the key,and with reference to the reference with similar characteristics of wastewater quality of the sewage station process,through static sedimentation test and modification test of retrofit scheme of technology demonstration,and the history of South dirt water node scaling tendency forecast and determine the transformation of the optimization process of pre oxidation and except for the ordering of the tank,the "oil removal + electrochemical oxidation and filtration process,various indicators meet the history in the Southern District of block sewage reinjection requirements.Through the transformation,the sewage treatment capacity expanded from 6000m3/d to 11000m3/d,improve the existing system of sewage treatment capacity,and improve the water quality,to adapt to the history of the future treatment of the South oilfield water and water quality requirements...