摘要
本文针对造漆漂油废水COD高(>10000mg/l),含油量高(>4g/l)废水量小(1天数吨)的特点,提出了混凝—浮选—砂滤—活性性炭吸附的工艺流程。实验说明选择合适的混凝剂硫酸铝和优化投药量,混凝浮选后的出水COD可去除98％以上。经砂滤和活性炭吸附后,COD,含油量和悬浮物均可达到排放标准。本文还根据活性炭吸附穿透曲线,计算了Bohart-Adams关系式中的吸附容量No,流速常数K和活性炭柱临界厚度D。
A technological process contained coagulation--floation--sand filtration--activated carbon adsorption was presented in order to treat waste water (COD>1000mg/1), oil content (>4g/1) of rinsed oii in paint factory. The experiment showed that COD was removed 98％ and more after choosing the suitable coagulant aluminum sulfate and optimizing its dose, and COD, oil content, and suspended solid met State Discharge Standard through the sand filter and activated carbon adsorption column. Adsorptive capacity No, constant of speed of flow K and critical bed depth Do of activated carbon adsorption column in Bohart--Adams equation were calculated based on the break--through curve of activated carbon.
出处
《重庆环境科学》
1993年第1期12-15,共4页
Chongqing Environmental Science
