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008 011298s1987 th r 0000|00eng d
035 _a.b10367342
099 9 _aAIT Thesis no. EV-87-26
100 0 _aKaruna Penpean
245 1 0 _aInter-relation among microbiological reactions in anaerobic condition
260 _aBangkok :
_bAsian Institute of Technology,
_c1987
300 _a78 p.
490 1 _aThesis ;
_vno. EV-87-26
500 _aA thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1987
520 _aAcidogenesis, acetogenesis, methanogenesis and sulfate reduction are the important reactions in anaerobic condition. Thus, to investigate the knowledge of mechanism of anaerobic condition, the characteristics of these reactions and their relationships were examined from the experiment in this study. In semi-continuous condition, the sludge was acclimated with three types of substrate to enhance three groups of bacteria and the incubation of various substrate with the bacteria in these sludge was done in batch experiments . During incubation period, various parameters such as COD, TOA, sulfate, methane production, etc. were analyzed. The results of acetate as substrate showed its degradation was the contrast between semi-continuous condition and batch experiments. For sulfate reduction, it took place together with acidogenesis, acetogenesis and acetate oxidation, however sulfate reduction with acidogenesis and acetogenesis were ·preferable. The results also indicated that acetogenic bacteria for degrading butyrate and for degrading propionate were different groups. Sulfate-reducing bacteria, as same as acetogenic bacteria, in butyrate degrading species were different from propionate degrading species that can not degrade butyrate.
650 0 _aSewage
_xPurification
_xBiological treatment
700 1 _aHanaki, K.,
_eChairperson
700 0 _aChongrak Polprasert,
_eExamination Committee
700 0 _aSamorn Muttamara,
_eExamination Committee
710 2 _aThe Government of Japan,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. EV-87-26
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B19249
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