含油含醇污泥脱水性能分析与应用

在气田开采、集输过程中产生的含油含醇污泥成分复杂,直接排放将导致周围环境污染.为减少有害污泥排放,改善处理工艺流程,以陕北某气田含油含醇污泥为样品,实验测定组分与粒度分布,分析分离效果差的原因;通过浓缩沉降实验研究含油含醇污泥脱水性能,筛选有效絮凝剂,确定最佳复配方案及投加剂量.实验结果表明:以质量浓度分别为500mg/L的PAC与40mg/L的SC-3为配方的复合絮凝剂具有良好的污泥脱水性能,浓缩沉降处理后含油含醇污泥体积缩小、含水率下降,且处理时间缩短.现场应用结果表明:文中配方可有效改善处理工艺流程,对保护气田环境起到良好作用.

Analysis and application of dewatering performance of sludge containing alcohol and oil

Gas field exploitation often produce some oil-alcohol-containing components of the sludge generated in the process of gathering and transportation complex,direct emissions will lead to the pollution of the surrounding environment.Experimental research concentrated on the settlement of oily alcoholcontaining sewage to reduce the emissions of harmful sludge to improve the treatment process,sludge samples,the experimental determination of the composition and particle size distribution analysis of the reasons for the poor separation,oil-containing alcohol to a gas field in northern Shaanxi;sludge dewatering performance,screening effective flocculant,to determine the best complex solutions and the dosage.Experimental results show that:mass concentration of 500mg/L of PAC and 30mg/L SC-3formula composite the flocculant sludge dewatering performance sedimentation treatment concentrated oilalcohol-containing sludge volume is reduced,the water content rate decreased,and the processing time is shortened.Field application test:formulation can effectively improve the treatment process and play a good role in the protection of the gas field environment.