| Accompanied by produced water of oilfield water cut rising,still contains a small amount of oil particles are needing to get purification treatment in produced water ?There are a lot of problems in the traditional treatment process under today's standards,the new treatment technology constantly updated,The development of membrane technology very fast among them ? Compared with traditional technology,filtering processing process of inorganic membrane is very simplified?Treatment effect is better for oily wastewater,as a result,membrane technology has gradually become an important optional oil-bearing wastewater treatment process?Oily wastewater treatment conditions often complex,the offshore oil field wastewater treatment is more difficult?It can realize quick installation in offshore oil field operation platform,in situ for wastewater treatment because of the characteristics of flexible and convenient of skidded equipment?So skidded equipment can the very good application in engineering?Selection of membrane is the flat ceramic membrane from Japanese manufacturers in the article?For ceramic flat membrane performance test research in the first place?Firstly,running the flat ceramic membrane device operation using distilled water as raw water to checking air tightness? Secondly,running the flat ceramic membrane device operation using the oily wastewater as raw water?Studies have shown that,aeration rate,membrane flux,temperature is the main factors impacting ceramic flat membrane oil-bearing wastewater treatment capacity ? Due to the temperature is 50? or so in oilfield produced water,no longer do deep research for temperature in the article?The test temperature is 50?,design operation temperature is 50? in the skidded equipment ? Choosing different aeration rate under the same operating conditions,analysis the best aeration rate is 2.0L/min according to the data of transmembrane pressure difference ? Choosing different membrane flux under the same operating conditions,analysis the best membrane flux is 22.5L/(m2·h)according to the data of transmembrane pressure difference?The experiment found that,the oil content and suspended solid content keep rising under the best aeration rate and the best membrane flux,membrane fouling is fast?The experiment need further test to reduce the oil content and suspended solid content?The experiment design electrolytic flotation to solve the problem of the oil content and suspended solid content keep rising ? Analysis the best current is 1.5A,the time of electrolytic flotation is10 min,the electrolytic flotation open 3 times in the operation cycle?The chemical cleaning agents in the experiment,Analysis the best potion is thesolution of HNO3,the best soaking time is 12h?Exploit that could be used by the research and development on the operation platform of mobile oily water treatment equipment,for the back to the water injection process problem on offshore oil field development?Based on experimental research of flat ceramic membrane and the experimental data in the article,designing the skidded equipment,which can dispose oily wastewater 80m3/d ?Design process and determine the number of flat ceramic membrane according to the experiment,Complete the design of the skidded equipment?Calculating the overall cost considerations equipment and the electric quantity,chemicals cost in the operation process?Estimate analysis the cost of the skidded equipment?... |
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