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首页> 外文期刊>Comptes Rendus Chimie >Relevance of a combined process coupling electro-Fenton and biological treatment for the remediation of sulfamethazine solutions - Application to an industrial pharmaceutical effluent
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Relevance of a combined process coupling electro-Fenton and biological treatment for the remediation of sulfamethazine solutions - Application to an industrial pharmaceutical effluent

机译：电-芬顿和生物处理相结合的组合工艺对磺胺二甲嘧啶溶液的修复的相关性-在工业制药废水中的应用

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摘要

A combined process coupling an electro-Fenton pretreatment and a biological degradation was implemented in order to mineralize synthetic and industrial pharmaceutical effluents, containing a veterinary antibiotic, sulfamethazine (SMT). The electro-Fenton pretreatment of an SMT synthetic solution was first examined and the obtained results showed total SMT degradation after 30 min of electrolysis at pH 3,18 degrees C, 500 mA and an initial SMT concentration of 0.2 mM, while the level of mineralization remained low (2.1 and 18.1% for electrolysis times of 30 and 60 min), ensuring significant residual organic content for a subsequent biological treatment. In a second part, biological treatments were performed to complete the mineralization of the electrolyzed solutions of SMT, showing a significant level of mineralization after about 18 days of culture, 61.4% for a 30-min pretreatment. The same electrolysis conditions were then applied to the pretreatment of an industrial pharmaceutical effluent, showing a total SMT removal in the effluent after 100 min of electrolysis, while the mineralization yield remained also low (7.5%), showing the formation of organic intermediate products. Fortunately, the mineralization yield during the subsequent biological treatment increased to almost 80%, namely an overall yield of 81.4%. Consequently, the integrated electro-Fenton biological treatment process proved to be an efficient technology to reprocess industrial pharmaceutical effluents. (C) 2014 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
机译：为了使含有兽用抗生素磺胺二甲嘧啶（SMT）的合成和工业制药废水矿化，实施了将电子Fenton预处理与生物降解相结合的组合过程。首先检查了SMT合成溶液的电芬顿预处理，获得的结果表明，在pH 3,18℃，500 mA和初始SMT浓度为0.2 mM的条件下电解30分钟后，SMT的总SMT降解程度为保持低水平（电解时间分别为30和60分钟，分别为2.1和18.1％），确保了后续生物处理过程中残留的大量有机物。在第二部分中，进行了生物处理以完成SMT电解溶液的矿化，在培养约18天后显示出显着的矿化水平，对于30分钟的预处理，其矿化率为61.4％。然后将相同的电解条件应用于工业制药废水的预处理，显示出在电解100分钟后废水中的SMT去除总量，而矿化产率也仍然很低（7.5％），表明形成了有机中间产物。幸运的是，在随后的生物处理过程中，矿化产率提高到几乎80％，即总产率为81.4％。因此，集成的电芬顿生物处理工艺被证明是一种对工业制药废水进行再处理的有效技术。 （C）2014年科学研究院。由Elsevier Masson SAS发布。版权所有。

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