膜生物反应器处理微污染水源水的试验研究

【作者】 糜洵；

【导师】 王连军； 顾志明；

【作者基本信息】 南京理工大学 ， 环境工程， 2004， 硕士

【摘要】 本文对膜生物反应器处理微污染水源水的工艺特性进行了研究。其长期运行结果表明，COD_Mn平均去除率47.45％，氨氮平均去除率79.29％，浊度去除率几乎达100％，但对UV254去除率不佳。考察了悬浮型粉末活性炭-膜生物反应器工艺和膜生物反应器-颗粒活性炭柱工艺的运行特性，结果表明，UV254的去除率分别为35.86％、50.94％，出水达地面水体环境质量标准中Ⅱ类水体的规定。本文还对膜污染进行了研究，针对可逆污染形成特点，采用污泥沉积层在线去除装置和间歇操作进行控制，有效的解决了膜可逆污染问题。动态吸附对膜不可逆污染的形成影响较大。膜表面改性可以减轻膜不可逆污染。更多还原

【Abstract】 The .effect of the treatment of micro-polluted raw water by using membrane bioreactor Was investigated .Long-term operation has showed that the membrane bioreactor(MBR) had a good effect on the removal of the chemical oxygen demand(CODMn),ammonia nitrogen(NH3-N), solid suspended substance(SS) and UV254. The result are CODMn 47.45%, NH3-N 79.29% and SS nearly 100%.However,the removal of UV254 was not so good .PACT-MBR and MBR-GACC were investigated. As a result, The removal of UV254 are 35.86%m 50.94%,and the quality of the effluent had good staility. The characteristic of the membrane fouling is investigated when the membrane bioreactor is used to treat micro-polluted source water. The sludge layer removal device and non-continuous suction operation are introduced as fouling alleviating alternatives. The irreversible membrane fouling occurred when the suction operated. The irreversible membrane fouling also could be released by modifying membrane surface with surfacetant.更多还原