投加壳聚糖对DMBR处理造纸废水效能及膜污染影响研究  

Experimental study on the effect of dosing chitosan on the papermaking wastewater treatment and membrane fouling in DMBR

作　　者：凌琪[1] 孔莹莹 伍昌年[1] 鲍立宁[1] 王晏平 陈晨 王宗圣 程关健 

机构地区：[1]安徽建筑大学水污染控制与废水资源化安徽省重点实验室,安徽合肥230601 [2]安徽建筑大学环境与能源工程学院,安徽合肥230601

出　　处：《应用化工》2017年第12期2310-2313,共4页Applied Chemical Industry

基　　金：国家水体污染控制与治理科技重大专项课题(2014ZX07405003)

摘　　要：通过两组实验,研究了投加壳聚糖对动态膜生物反应器(DMBR)处理造纸废水的效果以及膜污染的影响。结果表明,投加壳聚糖后,由于壳聚糖的吸附和絮凝作用,可以明显提高污染物的去除率,对色度、浊度、COD、NH_3-N的平均去除率分别提高了8.8%,7.3%,5.7%,7.1%,红外光谱分析表明,膜表面污染物的主要成分为蛋白质和多糖。Effect of dosing chitosan as flocculant on the papermaking wastewater treatment and membrane fouling in dynamic membrane bioreactor were investigated by parallel experiments. The results showed that after dosing chitosan,could raise the removal efficiency,due to adsorption and flocculation of chitosan,the average removal rates of chroma,turbidity,COD,NH_3-N by 8. 8%,7. 3%,5. 7% and 7. 1% respectively.And it can be concluded that the protein and polysaccharide are the main components of membrane fouling through the analysis of the Fourier Transform Infrared Spectrometer( FTIR).

关 键 词：壳聚糖 动态膜生物反应器 造纸废水 膜污染 

分 类 号：TQ085.4[化学工程] X703[环境科学与工程—环境工程]