文献类型：期刊文献

英文题名：Biodegradation of Waste Water-based Drilling Fluid From an Offshore Drilling Operation

作者：Yang, Z. X.[1];Zhou, Y. B.[1,2];Xiang, X. Z.[3];Zhu, Z. B.[3];Pen, L.[3];Luo, Y. W.[3];Lu, J.[1,2]

机构：[1]E China Univ Sci & Technol, Shanghai 200237, Peoples R China;[2]Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai, Peoples R China;[3]China Oilfield Serv Ltd, Beijing, Peoples R China

年份：2013

卷号：31

期号：10

起止页码：1001

外文期刊名：PETROLEUM SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20131716243339);WOS:【SCI-EXPANDED(收录号:WOS:000317726300001)】；

基金：The authors are grateful for the financial support provided by the National Natural Science Foundation (No. 2011M500744) and the Fundamental Research Funds for the Central Universities (No. WB1114033).

语种：英文

外文关键词：activated sludge; biodegradation; long-chain alkanes; SBR; strengthen domestication; water-based fluid

摘要：The biodegradation technology of water-based drilling fluid from the ocean drilling plant was studied. The main pollutant of waste water-based drilling fluid is long-chain alkanes validated by GC-MS. A sequencing batch reactor with domesticated activated sludge had an effective biodegradability on the pollutants mentioned previously. In the first step, 0# diesel oil sold in the market was accommodated to simulate the environment of water-based fluid to make the activated sludge has certain adaptability. In the second step, waste water-based drilling fluid with the concentration increasing gradually was accommodated directly to domesticate the activated sludge deeply. The results show that, chemical oxygen demand removal ratio over 80% is achieved. Biodegradation ratio of the long-chain alkanes is 8393% by the microorganisms and short-chain alkanes are easier than long-chain alkanes while n-alkanes are easier than isoparaffin.