Betaine removal during thermo- and mesophilic aerobic batch biodegradation of beet molasses vinasse: Influence of temperature and pH on the progress and efficiency of the process

被引：19

作者：

Cibis, Edmund ^{[1
]}

Ryznar-Luty, Agnieszka ^{[1
]}

Krzywonos, Malgorzata ^{[1
]}

Lutoslawski, Krzysztof ^{[1
]}

Miskiewicz, Tadeusz ^{[1
]}

机构：

[1] Wroclaw Univ Econ, Dept Bioproc Engn, PL-53345 Wroclaw, Poland

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2011年 / 92卷 / 07期

关键词：

Betaine; Vinasse; Aerobic biodegradation; Thermophilic; Mesophilic; Bacillus; DISTILLERY WASTE-WATER; ANAEROBIC TREATMENT; POTATO STILLAGE; POLLUTION LOAD; SWINE WASTE; ETHANOL; DEGRADATION; DIGESTION; SLOPS; FUEL;

D O I：

10.1016/j.jenvman.2011.02.009

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The key issue in achieving a high extent of biodegradation of beet molasses vinasse is to establish the conditions for the assimilation of betaine, which is the main pollutant in this high-strength industrial effluent. In the present study, aerobic batch biodegradation was conducted over the temperature range of 27-63 degrees C (step 9 degrees C), at a pH of 6.5 and 8.0, using a mixed culture of bacteria of the genus Bacillus. Betaine was assimilated at 27-54 degrees C and the pH of 8.0, as well as at 27-45 degrees C and the pH of 6.5. The processes where betaine was assimilated produced a high BOD5 removal, which exceeded 99.40% over the temperature range of 27-45 degrees C at the pH of 8.0, as well as at 27 degrees C and the pH of 6.5. Maximal COD removal (88.73%) was attained at 36 degrees C and the pH of 6.5. The results indicate that the process can be applied on an industrial scale as the first step in the treatment of beet molasses vinasse. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1733 / 1739

页数：7

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