Removal of organic pollutants from municipal wastewater by a horizontal pilot - scale constructed wetland utilizing Phragmites australis and Typha latifolia - Effectiveness monitoring per season

Merima Toromanović, J. Ibrahimpašić, L. Topalić-Trivunović, I. Šišić
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Abstract

Constructed wetlands, as an alternative to conventional methods, are systemsdesigned on the basis of the application of natural purification processes that take placein watery and swampy overgrown habitats, with certain microbiological groups. In thewastewater treatment process various types of constructed wetlands can be combinedto achieve a higher efficiency of the purification.In this study, the removal effectiveness of the organic substances from municipalwastewater was monitored, using a horizontal pilot - scale constructed wetlandutilizing Typha latifolia and Phragmites australis. In addition to the measurement oforganic substances content through COD, BOD and KMnO4 consumption, and totaldissolved substances (TDS) in influent and effluent, microbiological sample analysis wasperformed, monitored by total number of coliform bacteria.The aim of this study was to calculate the effectiveness of removing organicsubstances from municipal wastewater, depending on the season, as well as theeffectiveness of eliminating total coliform bacteria.The results of one-year research have shown that the removal effectiveness ofthe organic substances from municipal wastewater, expressed as the chemical oxygendemand (COD), was the highest in summer - 87.82% ± 2.83%, and the lowest in thewinter - 64.51% ± 5.89%. During the study, effectiveness of elimination of total coliformbacteria was 97.88 ± 0.80% and total dissolved substances 71.27% .
利用芦苇和风叶的水平中试人工湿地去除城市污水中的有机污染物——季效监测
人工湿地,作为传统方法的一种替代方案,是在应用自然净化过程的基础上设计的系统,这种净化过程发生在水和沼泽的杂草丛生的栖息地,有某些微生物群。在污水处理过程中,可将不同类型的人工湿地组合使用,以达到更高的净化效率。本研究采用卧式中试人工湿地,利用风叶和芦苇对城市污水中有机物的去除效果进行了监测。除了通过COD、BOD和KMnO4消耗测量有机物质含量,以及进水和出水的总溶解物质(TDS)外,还进行了微生物样品分析,通过大肠菌群总数进行监测。本研究的目的是根据季节计算从城市污水中去除有机物质的有效性,以及消除总大肠菌群的有效性。为期一年的研究结果表明,城市污水中有机物的去除率(COD)夏季最高,为87.82%±2.83%,冬季最低,为64.51%±5.89%。研究过程中,总大肠菌群的去除率为97.88±0.80%,总溶解物的去除率为71.27%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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