ABR处理含硫酸盐废水过程中硫转化的研究  

Sulfur Transformation during Treatment of Sulfate-containing Wastewater in Anaerobic Baffled Reactor

作　　者：黄慰祖[1,2] 沈耀良[1,2] 

机构地区：[1]苏州科技学院江苏省环境科学与工程重点实验室,江苏苏州215011 [2]苏州科技学院环境科学与工程学院,江苏苏州215011

出　　处：《中国给水排水》2010年第13期86-89,共4页China Water & Wastewater

基　　金：江苏省高校自然科学基础研究重点项目(06KJA61020)

摘　　要：采用厌氧折流板反应器(ABR)处理含硫酸盐废水,考察了硫在反应器中的转化规律,以及HRT和进水COD/SO24-值对硫转化的影响。结果表明,ABR中发生了硫酸盐在第1隔室被大量还原而生成的硫化物,并在之后的各隔室被逐步氧化的现象;HRT越小,硫酸盐的还原率越高;对于低浓度废水,当进水COD/SO24-值>2.5时,硫酸盐还原率基本可稳定在90%左右,而当进水COD/SO42-值为1.7～2.5时,硫酸盐还原率可能会大幅下降。Anaerobic baffled reactor （ABR） was adopted to treat sulfate-containing wastewater. The regularity of sulfur transformation in the reactor and the effect of HRT and COD/SO42- ratio on the sulfur transformation were investigated. The results show that a great deal of sulfate is reduced in the first compartment, but the sulfide produced is oxidized step by step in the following compartments. When HRT is decreased, the sulfate reduction rate is increased. For low-strength wastewater, when the influent COD/SO4 2- ratio is more than 2.5, the sulfate reduction rate reaches about 90% and can be sharply de- creased when COD/SO2- ratio is in the range from 1.7 to 2.5.

关 键 词：ABR 硫酸盐 HRT 进水COD/SO42-值 

分 类 号：X703[环境科学与工程—环境工程]