Super Heavy Oil Wastewater Treatment by Combined ME and I-BF Process-A Field Pilot Study
| Periodical | Applied Mechanics and Materials (Volumes 178 - 181) |
|---|---|
| Main Theme | Sustainable Environment and Transportation |
| Edited by | Mingjin Chu, Huizhong Xu, Zhilin Jia, Yun Fan and Jiangping Xu |
| Pages | 485-490 |
| DOI | 10.4028/www.scientific.net/AMM.178-181.485 |
| Citation | Kun Tong et al., 2012, Applied Mechanics and Materials, 178-181, 485 |
| Online since | May, 2012 |
| Authors | Kun Tong, Yi He Zhang, Qi Hui Song, Qi Wang |
| Keywords | BOD/COD, GC-MS, I-BF, ME, Super Heavy Oil Wastewater |
| Price | US$ 28,- |
A field pilot test was conducted on a macro-electrolysis/biological filter with immobilized microorganism system (ME/I-BF) in the Liaohe oilfield, China to treat super heavy oil wastewater with large amounts of dissolved recalcitrant organic compounds and low nutrients of nitrogen and phosphorus. By operating the system for 155 days (including the start-up of 28 days), the BOD/COD ratio of water increases from 0.13 to 0.22 and the COD removal rate is 47.46% after the ME treatment. Then, the COD decreases to 100 mg/L and the COD removal rate is 80.96% after I-BF treatment. When indigenous microorganisms inoculated, the effluent gets better, COD decreases to 70 mg/L and the removal rate of COD increases to 88.54%. Gas chromatography/mass spectrometry (GC/MS) indicated that the super heavy oil wastewater contains 11 organic compounds and most of them are removed after treatment. This integrated system is a useful option for the treatment of heavy oil wastewater.
