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Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media

Numerous researchers have expressed concern over the emerging water scarcity issues around the globe. Economic water scarcity is severe in the developing countries; thus, the use of inexpensive wastewater treatment strategies can help minimize this issue. An abundant amount of laundry wastewater (LW...

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Autores principales: Yaseen, Zaher Mundher, Zigale, Tibebu Tsegaye, Tiyasha, D., Ravi Kumar, Salih, Sinan Q., Awasthi, Suyash, Tung, Tran Minh, Al-Ansari, Nadhir, Bhagat, Suraj Kumar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6904576/
https://www.ncbi.nlm.nih.gov/pubmed/31822700
http://dx.doi.org/10.1038/s41598-019-54888-3
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author Yaseen, Zaher Mundher
Zigale, Tibebu Tsegaye
Tiyasha
D., Ravi Kumar
Salih, Sinan Q.
Awasthi, Suyash
Tung, Tran Minh
Al-Ansari, Nadhir
Bhagat, Suraj Kumar
author_facet Yaseen, Zaher Mundher
Zigale, Tibebu Tsegaye
Tiyasha
D., Ravi Kumar
Salih, Sinan Q.
Awasthi, Suyash
Tung, Tran Minh
Al-Ansari, Nadhir
Bhagat, Suraj Kumar
author_sort Yaseen, Zaher Mundher
collection PubMed
description Numerous researchers have expressed concern over the emerging water scarcity issues around the globe. Economic water scarcity is severe in the developing countries; thus, the use of inexpensive wastewater treatment strategies can help minimize this issue. An abundant amount of laundry wastewater (LWW) is generated daily and various wastewater treatment researches have been performed to achieve suitable techniques. This study addressed this issue by considering the economic perspective of the treatment technique through the selection of easily available materials. The proposed technique is a combination of locally available absorbent materials such as sand, biochar, and teff straw in a media. Biochar was prepared from eucalyptus wood, teff straw was derived from teff stem, and sand was obtained from indigenous crushed stones. In this study, the range of laundry wastewater flow rate was calculated as 6.23–17.58 m(3)/day; also studied were the efficiency of the media in terms of the removal percentage of contamination and the flux rate. The performances of biochar and teff straw were assessed based on the operation parameters and the percentage removal efficiency at different flux rates; the assessment showed 0.4 L/min flux rate to exhibit the maximum removal efficiency. Chemical oxygen demand, biological oxygen demand, and total alkalinity removal rate varied from 79% to ≥83%; total solids and total suspended solids showed 92% to ≥99% removal efficiency, while dissolved oxygen, total dissolved solids, pH, and electrical conductivity showed 22% to ≥62% removal efficiency. The optimum range of pH was evaluated between 5.8–7.1. The statistical analysis for finding the correlated matrix of laundry wastewater parameters showed the following correlations: COD (r = −0.84), TS (r = −0.83), and BOD (r = −0.81), while DO exhibited highest negative correlation. This study demonstrated the prospective of LWW treatment using inexpensive materials. The proposed treatment process involved low-cost materials and exhibited efficiency in the removal of contaminants; its operation is simple and can be reproduced in different scenarios.
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spelling pubmed-69045762019-12-13 Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media Yaseen, Zaher Mundher Zigale, Tibebu Tsegaye Tiyasha D., Ravi Kumar Salih, Sinan Q. Awasthi, Suyash Tung, Tran Minh Al-Ansari, Nadhir Bhagat, Suraj Kumar Sci Rep Article Numerous researchers have expressed concern over the emerging water scarcity issues around the globe. Economic water scarcity is severe in the developing countries; thus, the use of inexpensive wastewater treatment strategies can help minimize this issue. An abundant amount of laundry wastewater (LWW) is generated daily and various wastewater treatment researches have been performed to achieve suitable techniques. This study addressed this issue by considering the economic perspective of the treatment technique through the selection of easily available materials. The proposed technique is a combination of locally available absorbent materials such as sand, biochar, and teff straw in a media. Biochar was prepared from eucalyptus wood, teff straw was derived from teff stem, and sand was obtained from indigenous crushed stones. In this study, the range of laundry wastewater flow rate was calculated as 6.23–17.58 m(3)/day; also studied were the efficiency of the media in terms of the removal percentage of contamination and the flux rate. The performances of biochar and teff straw were assessed based on the operation parameters and the percentage removal efficiency at different flux rates; the assessment showed 0.4 L/min flux rate to exhibit the maximum removal efficiency. Chemical oxygen demand, biological oxygen demand, and total alkalinity removal rate varied from 79% to ≥83%; total solids and total suspended solids showed 92% to ≥99% removal efficiency, while dissolved oxygen, total dissolved solids, pH, and electrical conductivity showed 22% to ≥62% removal efficiency. The optimum range of pH was evaluated between 5.8–7.1. The statistical analysis for finding the correlated matrix of laundry wastewater parameters showed the following correlations: COD (r = −0.84), TS (r = −0.83), and BOD (r = −0.81), while DO exhibited highest negative correlation. This study demonstrated the prospective of LWW treatment using inexpensive materials. The proposed treatment process involved low-cost materials and exhibited efficiency in the removal of contaminants; its operation is simple and can be reproduced in different scenarios. Nature Publishing Group UK 2019-12-10 /pmc/articles/PMC6904576/ /pubmed/31822700 http://dx.doi.org/10.1038/s41598-019-54888-3 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Yaseen, Zaher Mundher
Zigale, Tibebu Tsegaye
Tiyasha
D., Ravi Kumar
Salih, Sinan Q.
Awasthi, Suyash
Tung, Tran Minh
Al-Ansari, Nadhir
Bhagat, Suraj Kumar
Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media
title Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media
title_full Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media
title_fullStr Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media
title_full_unstemmed Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media
title_short Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media
title_sort laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6904576/
https://www.ncbi.nlm.nih.gov/pubmed/31822700
http://dx.doi.org/10.1038/s41598-019-54888-3
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