SPAC厌氧反应器的动力学特性研究  

Kinetics analysis of spiral automatic circulation anaerobic reactor.

作　　者：汪彩华[1] 郑平[1] 陈建伟[1] 唐崇俭[1] 余燚[1] 

机构地区：[1]浙江大学环境与资源学院环境工程系,浙江杭州310029

出　　处：《浙江大学学报（农业与生命科学版）》2009年第2期222-227,共6页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：浙江省重大科技攻关资助项目(2005C13004);浙江省新苗人才计划资助项目(2007G60G2010051).

摘　　要：采用模拟废水,研究新型螺旋自循环(spiral automatic circulation,SPAC)厌氧反应器的动力学特性.通过物料衡算建立容积去除率与出水浓度间的关系,并用Monod模型拟合得到该反应器的最大比污泥活性qmax为1.010d-1,半速率常数KS为1.115g·L-1,理论最大容积去除率(LVR)max为47.3g·L-1·d-1,实测容积去除率为最大值的80%左右.容积甲烷产率与容积去除率以及污泥生长速率与容积甲烷产率之间均具有良好的相关性.以蔗糖为基质时,基质甲烷产率系数为0.396L·g-1 CODremoved,菌体与甲烷产率之比为0.1785g·L-1.通过测定甲烷产量,可方便地了解反应器效能.The kinetic characteristics of spiral automatic circulation （SPAC） anaerobic reactor were investigated. Base on material balance, the relationship between the volumetric removal rate and the effluent concentration was established and analyzed by the Monod model, where the parameters qmax, Ks and （LVR） were 1. 010 d^-1 , 1. 115 g· L^- 1 and 47. 3 g· L^-1 ·d^-1 , respectively. The measured maximum volumetric COD removal rate was 80% of the theoretical one. According to the study, both the volumetric methane production rate versus volumetric COD removal rate, and the sludge growth rate versus volumetric methane production rate showed good linear relationships. When sucrose was used as the substrate, the methane yield was 0. 396 L· g^-1 CODremoved, and the ratio of sludge yield to methane yield was 0. 1785 g· L^-1 . The reactor performances such as volumetric COD removal rate, volumetric methane production rate and sludge growth rate are easily monitored by measuring the methane production.

关 键 词：SPAC反应器 基质降解动力学 产甲烷动力学 菌体生长动力学 

分 类 号：X703.1[环境科学与工程—环境工程]