新型生物流化床组合工艺处理工业有机废水的工程应用分析

ENGINEERING USE ANALYSIS OF INDUSTRIAL ORGANIC WASTEWATER TREATMENT BY COMBINED TECHNOLOGY OF NEWLY BIOLOGICAL FLUIDIZED BED

尝试一种新型结构的生物三相流化床工程化应用于磁电器制品厂的洗涤废水和漂染厂高浓度印染废水的处理 ,处理规模分别为 2 40m3 d和 2 5 0 0m3 d。采用A O2 的流化床组合工艺 ,在总HRT低于 2 4h的操作条件下 ,当洗涤废水进水CODCr负荷为 2 3～ 2 6kg m3·d ,BOD5负荷为 0 72～ 0 95kg m3·d的情况下 ,出水CODCr、BOD5、SS及油分的平均浓度分别为 43 5 0mg L、18 90mg L、2 1 0mg L及 0 86mg L。当印染废水的进水CODCr、BOD5负荷为 3 8～5 8kg m3·d和 1 3～ 1 8kg m3·d时 ,出水CODCr、BOD5浓度分别低于 90mg L和 35mg L。其处理出水均达到了国家一级排放标准。选用的新工艺运行管理方便 ,出水稳定 ,处理费用为 0 6～ 0 8元 t,且基本无污泥产生 ,证明该技术符合清洁生产的环保新概念。实践证明 ,新型生物三相流化床具有体积负荷大 ,抗冲击能力强 。

Using a newly three phase fluidized bed to treat washing wastewater of a magnetoelectricity goods plant and dyeing wastewater of high concentration from a bleacing house,the scales are 240 m 3/d and 2 500 m 3/d .The project combined A/O 2 fluidized bed,when the COD Cr load of influent of washing wastewater is 2.3～2.6 kg/m 3·d,BOD 5 load is 0 75～0 95 kg/m 3·d,the COD Cr ,BOD 5,SS and oil of effluent will be 43.50 mg/L,18.90 mg/L,21.0 mg/L and 0.86 mg/L respectively.If COD Cr and BOD 5 load of influent of dyeing wastewater are 3.8～ 5.8 kg/m 3·d and 1.3～1.8 kg/m 3,COD Cr and BOD 5 of the effluent will be below 90 mg/L and 35 mg/L respectively.The new technology is very efficient and conveninet to manage,which does not produce sludge almost,the treatment fee is 0.6～0.8 yuan per ton of water.This technology can be widely used and match the new concept of environmental protection.