Evaluation of Physicochemical and Microbiological Parameters of Wastewater Submitted to Constructed Wetland Treatment System

Q4 Social Sciences

Fronteiras Pub Date : 2022-08-02 DOI:10.21664/2238-8869.2022v11i2.p131-140

Verônica Almeida Costa, Flávia Martins de Queiroz, Marilene Silva Oliveira, P. Naves

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引用次数: 0

Abstract

The use of natural systems such as wetlands constructed in the treatment of wastewater has become increasingly important due the ability of these systems to remove large amounts of macronutrients and microorganisms and to promote the degradation of organic matter. Given this background, the main objective of this study was to evaluate the efficiency of an experimental constructed wetland horizontal flow system subsurface cultivated with Zantedeschia aethiopica filled with sand and gravel substrates. The parameters were evaluated by the characterization of physicochemical and microbiological indicators of wastewater from the septic tank of the State University of Goiás in Anápolis city, Goiás, Brazil. The reductions of macronutrients ranged from 57.9 to 94.7%, and 87.0 to 91.0% for organic matter. In addition, a significant reduction in coliform levels in wastewater was observed after wetland treatment. It was concluded that the constructed wetland system could be proposed to treat wastewater from septic tanks at both secondary and tertiary levels, due to its high percentage efficiency in the removal of organic matter and macronutrients. The results obtained demonstrated the applicability of the studied system to be used as a versatile, sustainable, and economical treatment of effluents complementary to the septic tank treatment system.

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人工湿地处理废水的理化和微生物参数评价

利用湿地等自然系统处理废水已经变得越来越重要，因为这些系统能够去除大量的宏量营养素和微生物，并促进有机物的降解。在此背景下，本研究的主要目的是评估一个试验性人工湿地水平流系统的效率，该系统以沙和砾石基质填充的马蹄莲(Zantedeschia aethiopica)为基质。通过对巴西Anápolis市Goiás州立大学化粪池废水的理化和微生物指标进行表征，Goiás，巴西。宏量营养素减少57.9% ~ 94.7%，有机质减少87.0 ~ 91.0%。此外，经湿地处理后，废水中的大肠菌群水平显著降低。综上所述，人工湿地系统对化粪池废水的有机物和宏量营养素的去除率较高，可用于二级和三级化粪池废水处理。所获得的结果证明了所研究系统的适用性，可以作为化粪池处理系统的补充，作为一种通用、可持续和经济的污水处理系统。

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来源期刊

Fronteiras Social Sciences-Social Sciences (all)

CiteScore

0.40

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： FRONTEIRAS: JOURNAL OF SOCIAL, TECHNOLOGICAL AND ENVIRONMENTAL SCIENCE is an open-access, quarterly, peer-reviewed publication maintained by the Graduate Studies in Social, Technological and Environmental Science of the University Center of Anápolis (PPG STMA), with masters and doctoral degrees in Environmental Sciences. Fronteiras is an interdisciplinary journal that is driven by the belief that all types of knowledge must be available. It has as a target the researchers who dialogue in an interdisciplinary way with the theme "social and environmental science". The journal aims to publish original research, recognized rigorously for its theoretical-methodological, intellectual and scientific relevance. Fronteira has as the main theme of its publications the environmental science, aiming the scientific dissemination arising from the dialogues between the natural and human sciences and their connections with environmental science. Fronteiras: Journal of Social, Technological and Environmental Science has as its mission to publish and disseminate among the academic community, scientific manuscripts that are original and contribute to the promotion of multidisciplinary dialogues between the natural and human sciences and their connections with technological innovation, health as well as the environment.