Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China.
College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, China.
Int J Environ Res Public Health. 2020 Mar 17;17(6):1953. doi: 10.3390/ijerph17061953.
A sequencing batch reactor (SBR) and a ceramic membrane bioreactor (CMBR) were used in conjunction (SBR+CMBR) to treat high-concentration oil and gas field wastewater (HCOGW) from the China National Offshore Oil Corporation Zhanjiang Branch (Zhanjiang, Guangdong, China). The chemical oxygen demand (COD) and the oil concentrations in the wastewater were 20,000-76,000 and 600-2200 mg/L, respectively. After the SBR+CMBR process, the effluent COD and oil content values were less than 250 mg/L and 2 mg/L, respectively, which met the third level of the Integrated Wastewater Discharge Standards of China (GB8978-1996). Through microbiological analysis, it was found that the CMBR domesticated a previously unreported functional microorganism (JF922467.1) that successfully formed a new microbial ecosystem suitable for HCOGW treatment. In conjunction with the SBR process, the CMBR process effectively reduced pollutant concentrations in HCOGW. Moreover, economic analyses indicated that the total investment required to implement the proposed infrastructure would be approximately 671,776.61 USD, and the per-unit water treatment cost would be 1.04 USD/m.
采用序批式反应器（SBR）和陶瓷膜生物反应器（CMBR）联合工艺（SBR+CMBR）处理中海油湛江分公司（广东湛江）的高浓度含油污水处理厂废水（HCOGW）。废水的化学需氧量（COD）和油浓度分别为 20000-76000mg/L 和 600-2200mg/L。经 SBR+CMBR 工艺处理后，出水 COD 和油含量分别小于 250mg/L 和 2mg/L，均达到《污水综合排放标准》（GB8978-1996）中的三级标准。通过微生物分析，发现 CMBR 驯化了一种以前未报道的功能微生物（JF922467.1），成功形成了适合 HCOGW 处理的新微生物生态系统。与 SBR 工艺相结合，CMBR 工艺有效降低了 HCOGW 中的污染物浓度。此外，经济分析表明，实施拟议基础设施所需的总投资约为 671776.61 美元，单位水处理成本为 1.04 美元/m。
