摘要
本文研究了ＡＦＢ反应器在中温下处理高浓度有机废水的运行、操作影响因素和基质降解动力学。研究表明：在３５±２°Ｃ下，３０ｄ完成反应器启动；反应器运行１００天后，ＨＲＴ缩短为２．２ｈ，ＣＯＤ容积负荷５３．０ｋｇＣＯＤ／ｍ３．ｄ时，ＣＯＤ去除率可达８０．８％；用Ｍｏｎｏｄ方程近似描述反应器内基质降解特性，其动力学参数ｑｍ、Ｋｓ分别为５．６１ｋｇＣＯＤ／ｋｇＶＳＳ．ｄ，８１６．０ｋｇＣＯＤ／ｍ３。
The anaerobic fluidized bed reactor treating high concentration wastewater is very attractive with the porous polymer supports enveloping immobilized microbes. The operation characteristics and substrate degradation of the AFB reactor to treat wastewater are studied at mesophilic temperature (35±2°C) .The results demonstrate that the start-up is completed within 30 days. When operating after 100 days, the hydraulic retention time (HRT), volumetric organic loading rate and COD removal rate had reached 2.2h, 53.0 kgCOD/m3.d and 80.8% respectively.Monod model can approximately describe the kinetics of substrate degradation in an AFB reactor at steady states. The kinetics constants of qm and ks are 5.61 kgCOD/kgVSS.d, 816.0kgCOD/m3 respectively.
基金
国家自然科学基金
关键词
聚合物
流化床
废水处理
厌氧流化床
载体
porous polymer supports
fluidized bed reactor
wastewater treatment
