Anaerobic treatment of p-acetamidobenzene sulfonyl chloride (p-ASC)-containing wastewater in the presence or absence of ethanol in a UASB reactor

Wei cheng Li, Chunyan Wang, Zhe Tian, Hong Zhang, Yingxin Gao, Yu Zhang, Min Yang, Yu You Li, Osamu Nishimura

研究成果: Article査読

7 被引用数 (Scopus)

抄録

A lab-scale UASB reactor was operated for the treatment of p-acetamidobenzene sulfonyl chloride (p-ASC)-containing wastewater with and without ethanol for 210 days. The influence of the organic loading rate on the performance of reactor by step-decreasing HRT reduction/step-increasing the concentration of p-ASC was evaluated. Almost complete degradation of 50mg/l p-ASC and COD removal efficiency (79.5%) was noticed with a COD removal of 79.5% at HRT of 0.5 day or longer and an applied p-ASC loading rate below 120mg/l/day. No inhibition to the performance of this reactor was observed even at a p-ASC concentration up to 1000mg/l. Of interest that despite the absence of sulfate in the feed, a certain quantity of sulfate and sulfide was simultaneously generated in the effluent. The trial result in the absence of ethanol demonstrated that p-ASC could be used as the sole source of carbon and energy. Clone libraries for the archaeal and bacterial communities were constructed for a biomass sample taken on day 190. The majority of bacterial clones were represented by Proteobacteria, followed by Thermotogae, Bacteroidetes and Firmicutes. Bacterial groups within the phyla Clostridia might be responsible for the desulfonation of p-ASC.

本文言語English
ページ(範囲)81-88
ページ数8
ジャーナルInternational Biodeterioration and Biodegradation
98
DOI
出版ステータスPublished - 2015 3 1

ASJC Scopus subject areas

  • Microbiology
  • Biomaterials
  • Waste Management and Disposal

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