Assessing the Ability to Treat industrial Wastewater by Constructed Wetland Model Using the Brachiaria mutica

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ORIGINAL PAPER

Assessing the Ability to Treat industrial Wastewater by Constructed Wetland Model Using the Brachiaria mutica Thi Van Thanh Ho1 · Minh Pham Dang1 · Thoa Lu Tu1 · Tai Huynh Thien1 · Long Giang Bach2 Received: 17 October 2019 / Accepted: 7 April 2020 © Springer Nature B.V. 2020

Abstract The speed of urbanization—industrialization in Vietnam is increasing, which helps to boost the economy and at the same time create great environmental pressure. Industrial wastewater from production processes is always abundant and discharged continuously every day with diverse pollution components. Wastewater treatment of by simple and low-cost methods has been concerned. In this study, constructed wetland (CW) model using the Brachiaria mutica has been researched to evaluate the performance of Horizontal subsurface flow (HSSF) CW in treating industrial effluents. The model built with dimensions is 1.2 m × 0.4 m × 0.6 m and operated under 4 research organic load rates respectively 40; 60; 80; 100 kgCOD/ha.day. Average treatment efficiency of pollution parameters through study is COD 93.86%, T–N 97.46%, T–P 91.12%, TSS 83.07%, B ­ OD5 97.72%. The output concentration values of the pollution parameters are smaller than the allowable values in column A QCVN 40: 2011/ BTNMT. The results of this study will be the premise to find solutions for industrial wastewater treatment with easy to operate and environmentally friendly. The process of industrial wastewater treatment using CW planning B. mutica is simple and efficient. The success of this work is possible to expand research on wastewater treatment capacity of CW planning B. mutica with different kinds of wastewater such as domestic wastewater, livestock wastewater, medical wastewater. Graphic Abstract

Keywords  Brachiaria mutica · HSSF · Environmentally friendly · Chemical oxygen demand · Industrial wastewater · Contructed wetland * Thi Van Thanh Ho [email protected] 1



Ho Chi Minh City University of Natural Resources and Environment (HCMUMRE), Ho Chi Minh City, Vietnam



Nguyen Tat Thanh University (NTT), Ho Chi Minh City, Vietnam

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Statement of Novelty In recent years, rapid urbanization has made the problem of industrial wastewater pollution more and more serious, especially in Vietnam. Currently, many methods of wastewater treatment have been studied and applied. However,

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traditional wastewater treatment systems have largely undergone extensive aerobic, anaerobic treatment and high investment costs. In addition, after the treatment process, these systems also generated many by-products such as waste sludge, waste gas, etc. These by-products will cause pollution and affect to the environment. This paper presents novel research on using CW for industrial wastewater treatment. Brachiaria Mutica is grown in the wetland system and it will has an important role in pollutants removal. B. mutica is capable of growing and developing very quickly in the condition of high nitrogen. So, Para grass is suitable for growing in the constructe