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High-rate anaerobic treatment of purified terephthalic acid wastewater
被引:31
|作者:
Kleerebezem, R
[1
]
Lettinga, G
[1
]
机构:
[1] Univ Wageningen & Res Ctr, Subdept Environm Technol, Dept Agr Environm & Syst Technol, NL-6703 HD Wageningen, Netherlands
关键词:
acetic acid;
anaerobic;
benzoic acid;
pH-control;
terephthalic acid;
two-stage reactor;
D O I:
10.2166/wst.2000.0522
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
During production of purified terephthalic acid (PTA) a concentrated waste stream is generated, containing both readily (acetate and benzoate) and slowly (terephthalate and para-toluate) degradable organic substrates. Based on our experimental experiences with the anaerobic treatment of this waste stream, this paper presents an optimized concept for start-up and operation of a two-stage anaerobic bioreactor system. Based on considerations concerning the optimal conditions for cultivation of the specific types of biomass degrading the different substrates, and considerations concerning sodium-hydroxide requirements for pH control, a gradual transition between initial operation in parallel to operation in series is suggested.
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页码:259 / 268
页数:10
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