印度瓦拉纳西恒河沙层污水处理潜力评价

IF 2.1 4区 环境科学与生态学 Q2 ENGINEERING, CIVIL
Anoop Narain Singh, Ankur Mudgal, R. P. Tripathi, P. J. Omar
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引用次数: 0

摘要

污水处理厂(STP)能力不足,电力供应有限,以及部分处理和未经处理的污水排放造成了印度瓦拉纳西市严重的卫生问题。在河流淡水期(即从2月/ 3月到6月/ 7月),这个问题变得更加严重。为了减轻污水处理厂的负担,污水可以在河流凸岸一侧的天然砂床上进行处理和过滤。在目前的研究中,选择了恒河在瓦拉纳西的一段7公里长的沙床。这片区域分为三个区域:入口、中间和出口区域。本研究的目的是评估各自区域中选定部分的过滤潜力,并从三个区域中找出最适合废水过滤的区域。通过恒河三带砂床,测定了过滤前后的溶解氧、生物需氧量、电导率、总溶解固形物、盐度、pH、温度等7个基本参数。在三个选择的河湾带中,过滤长度和有效沙量在中间带最大。实验和调查结果表明,河湾中部的砂床最适合污水的处理和过滤。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessment of wastewater treatment potential of sand beds of River Ganga at Varanasi, India
Inadequate sewage treatment plant (STP) capacity, limited power supply, and discharge of partially treated and raw sewage create a significant sanitation problem in Varanasi city, India. This problem becomes severe during the lean period of the river (i.e. from February/March to June/July). To reduce the burden on STPs, sewage can be treated and filtered in a naturally occurring sand bed at the convex bank side of the river. In the present study, a 7-km stretch of the sand bed of River Ganga at Varanasi has been selected. This stretch is divided into three zones: entrance, middle, and exit zones. The objective of this research is to assess the filtration potential of selected sections in respective zones and to find out the most suitable zone, out of the three, for wastewater filtration. Seven basic parameters such as dissolved oxygen, biological oxygen demand, electrical conductivity, total dissolved solids, salinity, pH, and temperature were measured before and after filtration, through the sand bed of the three zones of River Ganga. Of the three selected zones of the river bend, filtration length and the amount of available sand were found to be maximum in the middle zone. Experimental results and survey work show that the sand bed in the middle zone of the river bend is best suited for wastewater disposal and filtration.
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来源期刊
CiteScore
4.10
自引率
21.10%
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审稿时长
20 weeks
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