厌氧膨胀颗粒污泥床反应器应用进展

A Review of Application of Expanded Granular Sludge Bed Reactor

在介绍厌氧膨胀颗粒污泥床(EGSB)的特点的基础上,分析EGSB反应器的应用进展。EGSB采用出水回流技术,反应器内的液体具有较高的上升流速,且出水回流可稀释硫酸盐及其它有毒有害物质的浓度,污水与微生物之间可充分接触,能承受较大的有机负荷,有效避免反应器内死角和短流的产生。应用EGSB反应器处理低温低浓度污水和高浓度或有毒、难降解工业废水,COD去除率较高,具有其它厌氧反应器不可比拟的优势,可广泛应用于多种污水处理工程。

The characteristics and applications of Expanded Granular Sludge Bed （EGSB） are introduced. With application of effluent circulation in EGSB reactor,the upflow liquid can move at a pretty high speed in the reactor. The circulating liquid can dilute sulfate and other toxic and harmful substances,and strengthen the contact between wastewater and microorganisms. At that point,the chamber of the reactor can be used in a great extent,and has a high organic load. The EGSB reactor can be employed in the treatment of the low temperature low concentration wastewater and high concentration or toxic and hard decomposition industrial wastewater, and obtain a high percentage removal of COD.