微氧曝气对ABR处理含硫酸盐废水SRB和MPB去除底物协同作用的研究  

SYNERGISTIC EFFECT OF MICRO-AERATION ON SULFATE ORGANIC WASTEWATER TREATMENT WITH SRB AND MPB IN ANAEROBIC BAFFLED REACTOR

作　　者：李宽峰[1,2] 沈耀良[1,2] 吴鹏[3] 

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 [3]江南大学环境与土木工程学院,江苏无锡214122

出　　处：《水处理技术》2013年第10期108-111,117,共5页Technology of Water Treatment

基　　金：江苏省高校自然科学研究重大项目(12KJA610002);江苏省普通高校研究生科研创新计划项目(SKCX11S_014)

摘　　要：以厌氧折流板反应器（ABR）为工艺，考察其处理低C／S比废水时，微氧曝气对削弱硫酸盐还原菌（SRB）对产甲烷菌（MPB）去除底物的抑制作用的影响和效能研究。通过分析曝气位置对反应过程中各隔室中的硫酸根、COD、硫离子、pH等变化的影响。结果表明，硫酸盐还原相和产甲烷相在ABR中呈现明显的相分离特征，在质量浓度0．4~0．6mg／L的DO能将硫化物质量浓度从45mg／L左右降到5mg／L左右；在硫酸盐还原相和产甲烷相前端曝气能促进SRB与MPB的协同作用，COD去除率从80％提升到95％左右，硫酸盐去除率也从80％提升至90％以上。The anaerobic baffled reactor （ABR） was adopted to treat the wastewater with low C/S ratio. The influence and efficiency of micro-aerobic aeration on weakening the inhibition of sulfate-reducing bacteria （SRB） on the removal of substrate by methane-producing bacteria （MPB） was investigated, and the effects of aeration positions on the concentrations of sulfate, COD, sulfur ions, pH, etc. were also investigated. The results show that there were obvious characteristics of phase separation between the sulfate reduction phase and methane production phase in ABR, and the DO between 0.4 mg/L and 0.6 mg/L can reduce the concentration from 45 mg/L to 5 mg/L, the synergistic removal of organics of SRB and MPB was promoted, the COD removal rate was increased from 80% to 95%, and sulfate removal rate was increased from 80% to 90% when aerate before the sulfate reduction phase and methane production phase.

关 键 词：溶解氧 硫酸盐还原菌 产甲烷菌 协同作用 

分 类 号：X703.1[环境科学与工程—环境工程]