水力停留时间对ABR反应器处理印染废水的影响  

Influences of Hydraulic Retention Time on Treating of Printing and Dyeing Wastewater in an Anoxic Baffled Reactor

作　　者：孔火良[1] 吴慧芳[2] 

机构地区：[1]南京农业大学资源与环境学院,南京210095 [2]南京工业大学环境学院,南京210009

出　　处：《中国沼气》2008年第3期15-18,共4页China Biogas

摘　　要：应用折流式水解反应器（ABR）对印染废水进行了处理研究。结果表明,在不同水力停留时间（HRT）下,ABR格室中pH值的变化总体趋势为上升,且HRT越长,pH值的变化越大;而氧化还原电位（ORP）总体随格室依次下降;ABR处理印染废水色度去除效果显著,当HRT大于8 h时,达到《纺织染整工业水污染物排放标准》（GB4287-92）的一级排放标准（色度≤40倍）;而从提高出水的可生化性及有效利用反应器容积考虑,处理该废水的适宜停留时间为6-8 h。A study on printing and dyeing wastewater treatment was carried out using an anoxic baffled reactor （ABR）. The results indicated the whole trend of pH variation of every compartment in ABR was ascending at five different HRTs, and the pH variation was larger with the increse of HRT. The ORP of every compartment in ABR dropped gradually along with the compartment. ABR had obvious effect on decolorizing the wastewater. When the HRT was more than 8 h, the effluent chroma could meet the discharge standard （GB4287-92, grade-1, color≤40 times） for textile and dyeing industry. In considering of raising the biodegradability of ABR effluent and effectively using ABR reactor volume, HRT 6 - 8 h was recommended in this study.

关 键 词：厌氧折流式反应器(ABR) 印染废水 水力停留时间(HRT) 可生化性 

分 类 号：X703[环境科学与工程—环境工程]