可拆卸式矿化垃圾生物反应床处理电厂柠檬酸酸洗废水研究

在实验室和现场对电厂柠檬酸酸洗废水进行生石灰前处理和后续可拆卸式三级矿化垃圾生物反应床的生物处理，主要研究了以往采用矿化垃圾反应床处理废水未涉及的反应床级数对废水处理效果的影响，比较了现场试验和实验室试验中的废水处理效果，并探讨了其原因。试验结果表明，本研究中的矿化垃圾反应床的适宜级数为3，第一级反应床的贡献最大，无论是实验室试验还是现场试验，采用本法处理电厂柠檬酸酸洗废水，均可使废水COD达到一级排放标准。

Treatment of citric acid cleaning wastewater from power plant with an assembled mineralized refuse bio-reaction-bed

Citric acid cleaning wastewater from power plant was pretreated with calcium oxide and then treated with a three-layer mineralized refuse bio-reaction-bed which could be disassembled in laboratory and field test, the effect of the bio-reaction-bed layer number on the treatment efficiency was studied. The wastewater treatment efficiencies in laboratory and field tests were compared, and the reasons were discussed. It is shown that the optimal number of bio-reaction-bed layer is three, the contribution to wastewater treatment of the first layer is the largest, the effluent quality both in laboratory test and in field test could measure up to the wastewater COD discharge standard.