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首页> 外文期刊>Journal of industrial and engineering chemistry >Biological treatment performance of hypersaline wastewaters with high phenols concentration from table olive packaging industry using sequencing batch reactors
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Biological treatment performance of hypersaline wastewaters with high phenols concentration from table olive packaging industry using sequencing batch reactors

机译：顺序分批反应器处理食用橄榄包装工业中高浓度酚类高盐废水的生物处理性能

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摘要

Biological treatment of hypersaline wastewaters such as fermentation brine from table olive processing (FTOP), was carried out using four sequential biological reactors (SBRs). These wastewaters were characterized by conductivities higher than 90 mS cm(-1) together with COD and total phenols concentration values of more than 15 g L-1 and 1000 mg L-1, respectively. In order to increase the organic removal efficiency and to reduce the hydraulic retention time (HRT), extra nutrients were added and pre-treatment by adsorption was performed. Results showed that the COD/N/P relationship, in the FTOP, of 250/5/1 was appropriate for the biological process reaching COD removal efficiencies of around 80%. The FTOP adsorption pre-treatment with powder activated carbon for the reduction of phenols concentration to 400 mg L-1 led to a HRT reduction from 40 to 15 days, maintaining the COD and total phenols removal percentages around 78% and 97%, respectively. On the other hand, gamma-Proteobacteria was the main bacterial class, representing around 74% of the microbial community in the reactors. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：使用四个顺序生物反应器（SBR）对高盐废水（如食用橄榄加工（FTOP）中的发酵盐水）进行了生物处理。这些废水的特点是电导率高于90 mS cm（-1）以及COD和总酚浓度分别超过15 g L-1和1000 mg L-1。为了提高有机物去除效率并减少水力停留时间（HRT），添加了额外的养分并进行了吸附预处理。结果显示，在FTOP中，COD / N / P关系为250/5/1适用于达到80％左右的COD去除效率的生物过程。用粉末活性炭进行的FTOP吸附预处理将苯酚的浓度降低至400 mg L-1，导致HRT从40天降低到15天，从而使COD和总苯酚的去除率分别保持在78％和97％左右。另一方面，γ-变形杆菌是主要的细菌类别，约占反应堆中微生物群落的74％。 （C）2016韩国工业和工程化学学会。由Elsevier B.V.发布。保留所有权利。

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