文章基本信息

标题：Optimizing Treatment of Cesspool Wastewater at an Activated Sludge Plant
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作者：Piotr Bugajski ; Agnieszka Operacz ; Dariusz Młyński 等
期刊名称：Sustainability
印刷版ISSN：2071-1050
出版年度：2020
卷号：12
期号：23
页码：10196
DOI：10.3390/su122310196
语种：English
出版社：MDPI, Open Access Journal
摘要：The purpose of this work was to determine the optimal percentage of wastewater from cesspool in the mixture of wastes subjected to treatment processes, which will not have a negative impact on the functioning of the collective treatment plant. The study was carried out over a period of two years, with 48 samples of wastewater flowing in from the sewage network and delivered with the slurry tanker collected and subjected to physical and chemical analysis. The analysis included: Biochemical Oxygen Demand (BODsub5/sub), Chemical Oxygen Demand (COD), and Total Nitrogen (TN). In addition, the study defined the daily balance of the amount of inflowing and transported wastewater. Based on the analysis carried out, it was found that the unit loads of BODsub5/sub, COD and TN in the mixture of wastewater subjected to the treatment process will be at the level of loads assumed in the project, when the share of supplied wastewater, i.e., from cesspool, will be at the level of 5% of the total amount of wastewater. Considering that in the analysed period the total average daily amount of wastewater subjected to the treatment process was 253.5 msup3/sup·dsup−1/sup, the optimal amount of wastewater delivered should be 12.7 msup3/sup in each day of the week.