投加PAC对HDMBR处理印染废水效果的影响

Effect of PAC addition on performance of hybrid dynamic membrane bioreactor treating printing and dying wastewater

将动态膜技术与悬浮填料相结合构建HDMBR(复合式动态膜生物反应器),采用HDMBR工艺处理印染废水,比较了投加粉末活性炭(PAC)对印染废水处理效能的影响。结果表明,投加PAC的反应器复合式动态膜性能、对污染物去除效果更好。系统稳定运行时,投加和未投加PAC反应器分别标为反应器A和B。A反应器对COD、UV_(254)、色度和浊度的去除率分别为96.20%,88.92%,92.12%,94.81%,分别比B反应器高2.16%,4.66%,5.65%,3.04%。三维荧光光谱解析表明印染废水经HDMBR处理,废水中溶解性有机物(DOM)的荧光峰强度沿程逐渐减弱,投加PAC可强化对DOM的去除。

Hybrid dynamic membrane bioreactor（ HDMBR） was combined dynamic membrane technology with suspended filler. HDMBR craft was used to treat printing and dyeing wastewater and the effect on powdered activated carbon（ PAC） on the treatment efficiency was investigated. Result shown that the hybrid dynamic membrane performance and the pollutants removal efficiency were improved with the addition of PAC. Reactors（ with and without PAC） were named as reactor A and B. The removal rate of COD,UV_（254）,chromaticity and turbidity in reactor A were 96. 20%,88. 92%,92. 12%,94. 81%,respectively.The removal rate of COD,UV_（254）,chromaticity and turbidity in reactor A were higher than that in reactor B 2. 16%,4. 66%,5. 65%,3. 04%,respectively. Fluorescence peak intensity of dissolved organic matter（ DOM） of wastewater in HDMBR process was gradually decreased by three dimensional fluorescence spectrum analysis. The addition of PAC can enhance the DOM removal.