投加零价铁对AnDMBR处理预浓缩污水的影响研究  

Effects of Zero-valent Iron Addition on Anaerobic Dynamic Membrane Bioreactor (AnDMBR)for Pre-concentrated Wastewater Treatment

作　　者：臧颖 胡以松[1] 杨媛[1] 张净钰 唐嘉陵 王晓昌[1] ZANG Ying;HU Yisong;YANG Yuan;ZHANG Jingyu;TANG Jialing;WANG Xiaochang(Shaanxi Key Laboratory of Environmental Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China;School of Architecture and Civil Engineering,Chengdu University,Chengdu 610106,China)

机构地区：[1]西安建筑科技大学陕西省环境工程重点实验室,陕西西安710055 [2]成都大学建筑与土木工程学院,四川成都610106

出　　处：《水处理技术》2021年第8期91-95,共5页Technology of Water Treatment

基　　金：国家自然科学基金青年项目(51508450);陕西省自然科学基础研究计划(2018JQ5054);陕西省科技创新团队(2019TD-025);四川省科技计划项目(2020YJ0196)。

摘　　要：应用厌氧动态膜生物反应器(AnDMBR)处理预浓缩的生活污水,考察了投加微米零价铁(ZVI)对工艺的过滤性能、污染物去除效果、产甲烷性能及污泥性质的影响。对比研究表明,投加ZVI后浊度的去除未受到影响,出水平均COD降低了6.8%,平均产甲烷率提高了50%。此外,溶解性胞外聚合物的含量减少了47.0%,污泥性质得到了改善。但是投加ZVI使跨膜压差(TMP)的增长率略有升高(0.04kPa/d),推测源于ZVI释放的铁离子引起的膜无机污染。Anaerobic dynamic membrane bioreactors(AnDMBRs)was used to treat pre-concentrated wastewater,the effects of zero-valent iron(ZVI)addition on filtration performance,pollutants removal,methane production and sludge characteristics were investigated.Comparative study indicated that,effluent turbidity removal efficiency of AnDMBR with ZVI addition did not be affected,while the average effluent COD was reduced by 6.8%,accompanying with the methane production rate increased by 50%.In addition,the content of soluble extracellular polymer was reduced by 47.0%,and the properties of sludge were improved.However,with ZVI addition,the growth rate of the trans-membrane pressure(TMP)was increased by 0.04 kPa/d,it was speculated that it was caused by the membrane inorganic fouling due to the iron ions released by ZVI.

关 键 词：厌氧动态膜生物反应器 零价铁 预浓缩污水 过滤性能 污泥性质 

分 类 号：TQ028.8[化学工程]