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标题：Influence of Bioaugmentation Strategy of Activated Sludge on the Co-Treatment of Reject Water and Municipal Wastewater at a Decreasing Temperature
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作者：Aleksandra Szaja ; Joanna Szulżyk-Cieplak
期刊名称：Inżynieria Ekologiczna
印刷版ISSN：2081-139X
电子版ISSN：2392-0629
出版年度：2020
卷号：21
期号：5
页码：97-106
DOI：10.12911/22998993/122239
出版社：Polish Society of Ecological Engineering (PTIE)
摘要：In the present study, the influence of bioaugmentation strategy on co-treatment of 13% v/v reject water and municipal wastewater at decreasing temperature was evaluated.The experiment was performed in two equal laboratory sequencing batch reactors with the active volume of 8 L.Each one was operated using a 12-hour cycle at sludge retention time of 3 d.The SBR A was bioaugmented with a mixture of wild-living Bacteria and Archaea in a dose 0.25 ml.While the comparative reactor (SBR B) was non-bioaugmented, the Archaea product was replaced with an equal volume of dechlorinated tap water.The experiment was divided into 3 phases, each with a different temperature range (20, 15 and 10oC).The temperature reduction did not adversely affect the process performance in the bioaugmented and non-bioaugmented system.Significant removal efficiencies were achieved in both SBRs.The major differences were observed for the COD content in bioaugmented SBR at a temperature of 10oC.In this case, statistically lower concentrations in the effluent were observed in the bioaugmented system than in the non-bioaugmented one.Additionally, at a temperature of 10oC the improved process performance was observed in Archaea presence, but the differences were no of statistical significance.
关键词：SBR ; reject water ; archaea ; bioaugmentation ; decreasing temperature