摘要
为深入了解膜生物反应器(MBR)中微生物代谢产物(SMP)的生成降解以及利用情况,研究了以NH4Cl为惟一能源物质的硝化MBR反应器中SMP浓度以及分子量(MW)变化情况,并运用活性污泥模型3(ASM3)准确地计算出微生物利用底物相关的溶解性产物(UAP)和微生物死亡相关的溶解性产物(BAP)的量分别是多少,最终证明硝化系统中产生的SMP可作为能源物质被异养菌进一步利用,而且相较于BAP而言UAP更易于被生物降解,得出结论 BAP是SMP中的主要污染成分。
To better understand the generation, degration and the utilization of soluble microbial products （SMP） in a membrane bioreactor （MBR）,the concentration and molecular weight （MW） changes of SMP in a MBR system which was only fed with NH4Cl as energy source were observed,the quality of utilization-associated products （UAP） and biomass- associated products （BAP） were accurately calculated by using activated sludge model 3 （ASM3）. The results demonstrated that the SMP generated in a nitrification system could be used as substrate for heterotrophic growth, and UAP was more readily biodegradable than BAP, therefore, BAP was the main pollution comoonents of SMP
出处
《环境工程学报》
CAS
CSCD
北大核心
2014年第4期1350-1354,共5页
Chinese Journal of Environmental Engineering
基金
国家"水体污染控制与治理"科技重大专项(2013ZX-07201007)
城市水资源与水环境国家重点实验室项目(2014DX03)
高等学校博士学科点专项科研基金资助项目(20112302110060)
国家创新研究群体科学基金资助项目(51121062)
