Use of water treatment residuals for colour removal from real textile dye wastewater

Abstract The use of readily available water treatment residuals (WTR) as a low-cost material for removal of colour from real textile wastewater was investigated. WTR was used in three forms, namely in raw wet form as a coagulant, in the dried form as an adsorbent and as a filtration media in column...

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Main Authors: Mahesh R. Gadekar, M. Mansoor Ahammed
Format: Article
Language:English
Published: SpringerOpen 2020-06-01
Series:Applied Water Science
Subjects:
Online Access:http://link.springer.com/article/10.1007/s13201-020-01245-9
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author Mahesh R. Gadekar
M. Mansoor Ahammed
author_facet Mahesh R. Gadekar
M. Mansoor Ahammed
author_sort Mahesh R. Gadekar
collection DOAJ
description Abstract The use of readily available water treatment residuals (WTR) as a low-cost material for removal of colour from real textile wastewater was investigated. WTR was used in three forms, namely in raw wet form as a coagulant, in the dried form as an adsorbent and as a filtration media in column tests. The results showed a maximum colour removal of 55 and 36% by coagulation and adsorption, respectively, and the corresponding COD removals were 35 and 37%. Coagulation and batch sorption tests showed the effect of initial pH on the colour removal, and maximum colour removal was obtained at an initial pH of 3.0. Long-duration continuous-flow column test using WTR as a filtration/sorption media showed that a maximum colour removal of 60% can be achieved. In column studies, complete exhaustion of the media occurred at 180 and 120 bed volumes, respectively, for initial pHs of 3.0 and 6.2. The study thus shows the potential of WTR for primary treatment of real textile dye wastewater.
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spelling doaj.art-d51f692a4e554a1cb3ec75a9815670292022-12-21T17:58:39ZengSpringerOpenApplied Water Science2190-54872190-54952020-06-011071810.1007/s13201-020-01245-9Use of water treatment residuals for colour removal from real textile dye wastewaterMahesh R. Gadekar0M. Mansoor Ahammed1Civil Engineering Department, SV National Institute of TechnologyCivil Engineering Department, SV National Institute of TechnologyAbstract The use of readily available water treatment residuals (WTR) as a low-cost material for removal of colour from real textile wastewater was investigated. WTR was used in three forms, namely in raw wet form as a coagulant, in the dried form as an adsorbent and as a filtration media in column tests. The results showed a maximum colour removal of 55 and 36% by coagulation and adsorption, respectively, and the corresponding COD removals were 35 and 37%. Coagulation and batch sorption tests showed the effect of initial pH on the colour removal, and maximum colour removal was obtained at an initial pH of 3.0. Long-duration continuous-flow column test using WTR as a filtration/sorption media showed that a maximum colour removal of 60% can be achieved. In column studies, complete exhaustion of the media occurred at 180 and 120 bed volumes, respectively, for initial pHs of 3.0 and 6.2. The study thus shows the potential of WTR for primary treatment of real textile dye wastewater.http://link.springer.com/article/10.1007/s13201-020-01245-9Textile dye wastewaterWater treatment residualsCoagulationAdsorptionFixed-bed column test
spellingShingle Mahesh R. Gadekar
M. Mansoor Ahammed
Use of water treatment residuals for colour removal from real textile dye wastewater
Applied Water Science
Textile dye wastewater
Water treatment residuals
Coagulation
Adsorption
Fixed-bed column test
title Use of water treatment residuals for colour removal from real textile dye wastewater
title_full Use of water treatment residuals for colour removal from real textile dye wastewater
title_fullStr Use of water treatment residuals for colour removal from real textile dye wastewater
title_full_unstemmed Use of water treatment residuals for colour removal from real textile dye wastewater
title_short Use of water treatment residuals for colour removal from real textile dye wastewater
title_sort use of water treatment residuals for colour removal from real textile dye wastewater
topic Textile dye wastewater
Water treatment residuals
Coagulation
Adsorption
Fixed-bed column test
url http://link.springer.com/article/10.1007/s13201-020-01245-9
work_keys_str_mv AT maheshrgadekar useofwatertreatmentresidualsforcolourremovalfromrealtextiledyewastewater
AT mmansoorahammed useofwatertreatmentresidualsforcolourremovalfromrealtextiledyewastewater