摘要
对油页岩废水水质进行分析，采用SBR工艺进行处理，以废水COD和总石油烃为控制指标，结合污泥脱氢酶的活性，探索SBR工艺运行的最佳条件；并利用修正的Monod公式，对SBR池中生化动力学进行研究，确定了其动力学参数，反应级数及反应速率常数。结果表明，在温度为24。28℃，pH值为6．58—7．24，DO为3．36—4．36mg／L，水力停留时间为36h条件下，处理效果较佳。在进水水量为15L，COD为491．008mg／L，总石油烃为33．25mg／L时，废水COD去除率可达70％，总石油烃去除率可达90％。
Since the wastewater generated by oil shale mining is the factor limiting the wide use of oil shale, the research on oil shale wastewater is one of the focuses in the home and abroad. In the pre- sent research, water quality of oil shale wastewater was analyzed. It could be found that the wastewater was with characteristics of great odor, deep color and consisted of complex components. To note, the organic compounds contained in the wastewater were mostly hydrocar- bons. Furthermore, Sequencing Batch Reactor Activated Sludge Pro- cess（SBR） was used to treat the oil shale wastewater and the optimum treatment condition was explored at different temperature, pH, DO, and hydraulic retention time （HRT）, with the control index of COD and TPHI combined with the sludge dehydrogenase activity. The re- suits show that within temperature of 24 - 28 ℃, pH of 6.58 - 7.24, DO of 3.36 - 4.36 mg/L, HRT of 36 h, the elimination effect of COD and TPH are promising. For the conditions of influent volume of 15 L, COD of 491.008 mg/L, and total petroleum hydrocarbons of 33.25 mg/L, the COD removal rate can be up to 70% and the total petroleum hydrocarbon removal rate can be up to 90 %. Besides, the influent and effluent were measured by GC - MS. Through the result of analysis, the content and type of organic matters in wastewater were found to significantly reduce. Furthermore, with modified Mon- od equation, the biochemical kinetics of SBR was analyzed for deter- mining its kinetic parameters （vmax）, reaction series （ n ） and reaction rate constant （k）. It can draw a conclusion that Vmax, was 2.38 d- 1, K, was 292.46 mg/L, n was 0.62 and k was 5.954 7 mg/L.
出处
《安全与环境学报》
CAS
CSCD
北大核心
2012年第6期94-98,共5页
Journal of Safety and Environment
基金
国家高技术研究发展计划(863)项目(2007AA06A410)
国家潜在油气资源产学研用合作创新项目(201003)
关键词
环境工程学
废水处理
SBR法
油页岩废水
降解动力学
environmental engineering
wastewater treatment
SBR
oil shale wastewater
degradation kinetics
