Sewage Treatment through Constructed Wetland System Tailed by Nanocomposite Clay Filter: A Clean Green Initiative

IF 0.3

International Letters of Natural Sciences Pub Date : 2021-07-27 DOI:10.18052/www.scipress.com/ilns.83.32

B. Usharani, N. Vasudevan

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引用次数: 1

Abstract

Sewage treatment through constructed wetland is an ecofriendly and sustainable approach proven effective worldwide. Constructed wetland with appropriate species is capable of eliminating all pollutants in sewage, except pathogen removal. An additional polishing treatment is required to eliminate pathogen. Optimization of HLR in CWS was executed by applying first order kinetics. Nanocomposite clay filter with economically viable materials was synthesized and disinfection ability was evaluated. A novel approach integrating constructed wetland system tailed by nanocomposite clay filter was designed. Control was setup with constructed wetland system devoid of plants integrated with clay filter devoid of nanoparticles. The constructed wetland system devoid of plants was used as plants play a vital role in the removal of pollutants. The quality of the influent for (n=20) BOD, COD, TKN, TP, TSS, TDS, SO4, Cl, lead and iron were 248, 345, 26, 4.8, 350, 450, 50, 48, 0.2, 5 mg/L respectively. The quality of effluent in the control was 145, 225, 18, 3.8, 185, 345, 31, 30, 0.6, 2 mg/L for BOD,COD, TKN, TP, TSS, TDS, SO4, Cl, lead and iron respectively. While in the test, 10, 30, 2, 1, 30, 128, 13, 12, BDL, BDL mg/L for BOD, COD, TKN, TP,TSS, TDS, SO4, Cl, lead and iron respectively. The inlet concentration of T.C, F.C and E.coli were 42.1x106-6.3x108, 4.9x105-14.4x106 and 7.8x103-3.8x105 respectively. The pathogen reduction in log removal for test and control units were 5.4 and 1.1 for T.C, 4.4 and 1.2 for F.C and 3 and 1 for E.coli. Thus it is a clean green initiative combating the limitations of disinfection surpassing the existing barriers.

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纳米复合粘土过滤器尾流人工湿地系统处理污水：一项清洁绿色倡议

通过人工湿地处理污水是一种环保和可持续的方法，在世界范围内被证明是有效的。适宜菌种的人工湿地能够去除污水中除病原体外的所有污染物。需要进行额外的抛光处理以消除病原体。采用一级动力学方法对水煤浆中HLR进行了优化。合成了经济可行材料的纳米复合粘土过滤器，并对其消毒能力进行了评价。设计了一种基于纳米复合粘土过滤器的人工湿地系统集成方法。采用不含植物的人工湿地系统和不含纳米颗粒的粘土过滤器作为对照。由于植物在去除污染物中起着至关重要的作用，因此采用了没有植物的人工湿地系统。进水水质(n=20) BOD、COD、TKN、TP、TSS、TDS、SO4、Cl、铅、铁分别为248、345、26、4.8、350、450、50、48、0.2、5 mg/L。对照组出水BOD、COD、TKN、TP、TSS、TDS、SO4、Cl、铅、铁的水质分别为145、225、18、3.8、185、345、31、30、0.6、2 mg/L。试验中，BOD、COD、TKN、TP、TSS、TDS、SO4、Cl、铅、铁分别为10、30、2、1、30、128、13、12、BDL mg/L。T.C、F.C和e.c coli的进口浓度分别为42.1x106 ~ 6.3x108、4.9x105 ~ 14.4x106和7.8x103 ~ 3.8x105。试验单元和对照单元的原木去除率分别为:tc减少5.4和1.1,fc减少4.4和1.2，大肠杆菌减少3和1。因此，这是一个清洁的绿色倡议，克服了消毒的局限性，超越了现有的障碍。

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International Letters of Natural Sciences MULTIDISCIPLINARY SCIENCES-

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