摘要
介绍了膜生物反应器的概念及其用于给水和废水处理的研究发展过程。膜生物反应器包括一体式系统、分离式系统和隔离式系统，并给出８例用于给水和废水处理的膜生物反应器的技术参数及水处理效果数据等。生物反应器其膜单元有超滤膜、微滤膜和苹取膜，用于脱氮、去除有机物及重点有毒物质的降解等。膜生物反应器的去除效率较高，有些ＣＯＤ去除效率达８０％一９０％，ＮＨ３－Ｎ去除效率达９８％，膜生物反应器的出水浊度低，处理出水宜于回用。
A review was made on the concept, categoriesand characteristics of membrane bioreactors andthe advances in their R & D for use in the treatment of water and wastewater. The bioreactors,including the immersed. hollow fiber mem.brapebioreactors, the crossflow filtration membranebioreactors and the extractive membrane bioreactors, were described by giving eight examples ofmembrane bioreactors for the treatment of- waterand wtstewater, and their respective techlhalparameters and treatment eHiciencies. All ofthese membrane bioreactors used an activatedsludge process in their bioreactors and wereequipped with an ultrafiltration membrape, a ndcrofihration membrane or an extractive meinbfsnein their membrane units. They have been developed for the purposes of nitrogen removal, organic pollutants removal, or degradation of prioritytoxic substances. The membrane bioreactors hadhigher removal efficiencies, for example, a CODremoval of up to 80%-90% and a NH3-N removal of over 98%. There was a lower turbidityin their efnuents which are thus suitable forreuse. It was pointed out that more and more attention hAs been paid in many countries to thethembrane bioreactor as technology for recyclingor reusing wastewater as a secondary resource.
出处
《环境科学》
CAS
CSSCI
CSCD
北大核心
1995年第5期79-81,共3页
Environmental Science
关键词
生物反应器
膜技术
水处理
废水处理
bioreactotl membrane technology,water treatment, Wastewater treatment
