CAJ | 학술논문

以船舶含油废水重力除油罐出水为研究对象,采用混凝沉淀/好氧生物处理组合工艺对其进行处理,重点考察了高浓度的Cl一对好氧生物系统处理效果的影响,以及由高浓度Cl~-引起的活性污泥生物相演替规律.结果表明,该组合工艺能在Cl~-浓度高达9 256 mg/L的条件下稳定运行,系统出水COD、TOC和石油类可分别降至(80～85)、(25～30)和(1.0～1.5)mg/L,达到了<污水综合排放标准(GB 8978-1996)的一级标准.高浓度的Cl~-对生物处理系统的影响较大,Cl~-为4 000 mg/L是对未驯化活性污泥产生抑制作用的转折点;在高Cl~-浓度下,降低Cl~-浓度比增加Cl~-浓度对生物处理系统的影响更大,良好的驯化过程和稳定的进水水质是高浓度Cl~-废水实现有效生物处理的重要保证.
이선박함유폐수중력제유관출수위연구대상,채용혼응침정/호양생물처리조합공예대기진행처리,중점고찰료고농도적Cl일대호양생물계통처리효과적영향,이급유고농도Cl~-인기적활성오니생물상연체규률.결과표명,해조합공예능재Cl~-농도고체9 256 mg/L적조건하은정운행,계통출수COD、TOC화석유류가분별강지(80～85)、(25～30)화(1.0～1.5)mg/L,체도료<오수종합배방표준(GB 8978-1996)적일급표준.고농도적Cl~-대생물처리계통적영향교대,Cl~-위4 000 mg/L시대미순화활성오니산생억제작용적전절점;재고Cl~-농도하,강저Cl~-농도비증가Cl~-농도대생물처리계통적영향경대,량호적순화과정화은정적진수수질시고농도Cl~-폐수실현유효생물처리적중요보증.
After being treated by gravity oil-water separator, the marine oily wastewater was trea-ted by the combined process of coagulation sedimentation and aerobic biological treatment.The effect of high Cl~- on the treatment efficiency of aerobic biological system and the Cl~- induced succession regulari-ty of activated carbon biofacies were investigated.The results show that the stable operation of the com-bined process can be obtained at high Cl~- of 9 256 mg/L, the effluent COD, TOC and oil are reduced to 80 to 85 mg/L, 25 to 30 mg/L and 1.0 to 1.5 mg/L respectively, which reaches the first class discharge standard of Integrated Wastewater Discharge Standard (GB 8978 -1996).The aerobic biological system is greatly affected by high Cl~-.Cl~- of 4 000 mg/L is a turning point for inhibiting unacclimated activated sludge.Cl~- decrease has a greater effect on the aerobic biological system than Cl~- increase under high Cl~-.Both well acclimation and stable influent quality are vital for effective aerobic treatment of high Cl~- wastewater.