甜菜糖蜜酒精糟在中温和嗜热好氧批式生物降解过程中的甜菜堿去除：温度和 pH 值对工艺进展和效率的影响。
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.
机构信息
Department of Bioprocess Engineering, Wrocław University of Economics, Komandorska 118/120, 53-345 Wrocław, Poland.
出版信息
J Environ Manage. 2011 Jul;92(7):1733-9. doi: 10.1016/j.jenvman.2011.02.009. Epub 2011 Mar 1.
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°C (step 9°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°C and the pH of 8.0, as well as at 27-45°C and the pH of 6.5. The processes where betaine was assimilated produced a high BOD(5) removal, which exceeded 99.40% over the temperature range of 27-45°C at the pH of 8.0, as well as at 27°C and the pH of 6.5. Maximal COD removal (88.73%) was attained at 36°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.
实现甜菜糖蜜酒糟高度生物降解的关键问题是建立同化甜菜碱的条件，甜菜碱是这种高强度工业废水中的主要污染物。在本研究中，使用芽孢杆菌属细菌的混合培养物，在 27-63°C（步长 9°C）的温度范围内，在 pH 值为 6.5 和 8.0 的条件下，进行了好氧批量生物降解。在 27-54°C 和 pH 值为 8.0，以及在 27-45°C 和 pH 值为 6.5 的条件下可以同化甜菜碱。同化甜菜碱的过程产生了高 BOD(5)去除率，在 pH 值为 8.0 的 27-45°C 温度范围内，以及在 pH 值为 6.5 和 27°C 的条件下，BOD(5)去除率超过 99.40%。在 pH 值为 6.5 和 36°C 的条件下，COD 去除率达到最大值（88.73%）。结果表明，该工艺可作为甜菜糖蜜酒糟处理的第一步在工业规模上应用。
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