MICROBIAL ATTACHMENT AND GROWTH IN FIXED-FILM REACTORS - PROCESS STARTUP CONSIDERATIONS

被引:38
作者
ANNACHHATRE, AP
BHAMIDIMARRI, SMR
机构
[1] Department of Biotechnology, Massey University, Palmerston North
关键词
BIOFILM; MICROBIAL ATTACHMENT; FIXED-FILM REACTOR; MICROBIAL FILM; SUPPORT MEDIA;
D O I
10.1016/0734-9750(92)91352-F
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Optimal steady-state performance of any biofilm reactor requires a fully developed and mature biofilm. During fixed-film reactor startup phase, biofilm is in process of development and accordingly, process performance is difficult to quantify. Environmental, cellular and surface factors greatly influence the process of biofilm formation during reactor startup. Improved knowledge of nutritional, toxicological and environmental requirements of wastewater degrading microorganisms has helped define optimal microbial growth conditions. In case of anaerobic fixed film reactors the startup is hindered by low microbial growth rates, strict environmental requirements and limited ability of methanogens to adhere and form fixed biofilms. These obstacles could be overcome by proper support media selection and formulation of appropriate inoculation procedures and startup strategies.
引用
收藏
页码:69 / 91
页数:23
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