皂脚废水的治理实践

TREATMENT PRACTICE OF SAPONIFICATION WASTEWATER

以湖南某日化厂皂脚废水为治理对象 ,通过试验研究 ,提出了“预处理 锅炉烟气脱硫除尘 混凝沉降 间歇式活性污泥法”的处理工艺 ,并由中试确定了相应的工艺参数。应用后表明 ,皂脚废水按相应工艺处理后 ,处理水可回用于烟气脱硫除尘 ,而回用外盈余水经生化处理后可实现达标排放。该方法处理成本适中 。

The saponification wastewater in the example engineering is treated with the technologic process which is the “pretreatment+flue gas desulfuration and dedusting+coagulation sedimentation+Sequencing Batch Reacter Activated Sludge Process(SBR)”.The related technologic parameters were determined by the pilot scale test.The example engineering's operation result shows that the saponification wastewater could be utilized for flue gas desulfuration and dedusting removal after the said treatment process,and the surplus wastewater could meet the discharge standard after the biological process.This method has better environmental and social benefits.