Real-time monitoring as an adaptive strategy towards green treatment of textile effluent using biosorbent from Acalypha indica

Performance of green treatment systems such as adsorption to treat textile effluents often suffers lack of longevity and efficiency due to the presence of complex compounds of varying reactivity. There is scope for improving the operational efficiency of such processes using real-time monitoring sys...

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Autores principales: C. Sivapragasam, V. Aruna Janani, A. Andappan, B. Archana, M. Vasudevan, N. Natarajan
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Publicado: IWA Publishing 2021
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spelling oai:doaj.org-article:6de6386711b54835a76cc81f60877f832021-11-06T07:18:19ZReal-time monitoring as an adaptive strategy towards green treatment of textile effluent using biosorbent from Acalypha indica1606-97491607-079810.2166/ws.2021.033https://doaj.org/article/6de6386711b54835a76cc81f60877f832021-08-01T00:00:00Zhttp://ws.iwaponline.com/content/21/5/2019https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798Performance of green treatment systems such as adsorption to treat textile effluents often suffers lack of longevity and efficiency due to the presence of complex compounds of varying reactivity. There is scope for improving the operational efficiency of such processes using real-time monitoring systems. The present study aimed to evaluate the performance of an activated biosorbent prepared from the leaves of Acalypha indica for treating textile industry effluent by simulating process control with real-time monitoring. Batch experiments were performed with synthetic and real-time dye effluents to identify the optimum conditions (pH = 3.0, dosage = 1.0 g/L; time = 1 h) for the highest adsorption capacity (6 mg g−1 and 2 mg g−1). The evaluation of physical parameters suggested best fit for Freundlich isotherm model and pseudo-second-order kinetic model. The LabVIEW-based simulation control system enabled close monitoring of pH and temperature during the process. Based on the inputs, an alteration of initial pH has resulted in substantial reduction in chemical oxygen demand (COD) (73.91%), turbidity (52.43%) and total dissolved solids (TDS) (19.43%). The average incremental increase was highest for COD (45.80 ± 0.06%) compared to TDS (10.13 ± 0.06%) and turbidity (−1.74 ± 0.03%) for varying dosage (3 g to 11 g). The proposed framework for incorporating a process-control-based monitoring system can help to achieve better performance. HIGHLIGHTS Activated carbon produced from the leaves of Acalypha indica as a biosorbent.; Adsorption isotherm provides best fit with Freundlich model.; Adsorption kinetics indicate that the textile effluent follows pseudo-second-order kinetics.; LabVIEW has been used for the measurement of pH and temperature of the effluent.; Adjustment of the initial pH led to substantial reduction in the COD, TDS and turbidity.;C. SivapragasamV. Aruna JananiA. AndappanB. ArchanaM. VasudevanN. NatarajanIWA Publishingarticleacalypha indicaadsorption modelsbiosorptionlabviewreal-time monitoringtextile effluentWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 5, Pp 2019-2034 (2021)
institution DOAJ
collection DOAJ
language EN
topic acalypha indica
adsorption models
biosorption
labview
real-time monitoring
textile effluent
Water supply for domestic and industrial purposes
TD201-500
River, lake, and water-supply engineering (General)
TC401-506
spellingShingle acalypha indica
adsorption models
biosorption
labview
real-time monitoring
textile effluent
Water supply for domestic and industrial purposes
TD201-500
River, lake, and water-supply engineering (General)
TC401-506
C. Sivapragasam
V. Aruna Janani
A. Andappan
B. Archana
M. Vasudevan
N. Natarajan
Real-time monitoring as an adaptive strategy towards green treatment of textile effluent using biosorbent from Acalypha indica
description Performance of green treatment systems such as adsorption to treat textile effluents often suffers lack of longevity and efficiency due to the presence of complex compounds of varying reactivity. There is scope for improving the operational efficiency of such processes using real-time monitoring systems. The present study aimed to evaluate the performance of an activated biosorbent prepared from the leaves of Acalypha indica for treating textile industry effluent by simulating process control with real-time monitoring. Batch experiments were performed with synthetic and real-time dye effluents to identify the optimum conditions (pH = 3.0, dosage = 1.0 g/L; time = 1 h) for the highest adsorption capacity (6 mg g−1 and 2 mg g−1). The evaluation of physical parameters suggested best fit for Freundlich isotherm model and pseudo-second-order kinetic model. The LabVIEW-based simulation control system enabled close monitoring of pH and temperature during the process. Based on the inputs, an alteration of initial pH has resulted in substantial reduction in chemical oxygen demand (COD) (73.91%), turbidity (52.43%) and total dissolved solids (TDS) (19.43%). The average incremental increase was highest for COD (45.80 ± 0.06%) compared to TDS (10.13 ± 0.06%) and turbidity (−1.74 ± 0.03%) for varying dosage (3 g to 11 g). The proposed framework for incorporating a process-control-based monitoring system can help to achieve better performance. HIGHLIGHTS Activated carbon produced from the leaves of Acalypha indica as a biosorbent.; Adsorption isotherm provides best fit with Freundlich model.; Adsorption kinetics indicate that the textile effluent follows pseudo-second-order kinetics.; LabVIEW has been used for the measurement of pH and temperature of the effluent.; Adjustment of the initial pH led to substantial reduction in the COD, TDS and turbidity.;
format article
author C. Sivapragasam
V. Aruna Janani
A. Andappan
B. Archana
M. Vasudevan
N. Natarajan
author_facet C. Sivapragasam
V. Aruna Janani
A. Andappan
B. Archana
M. Vasudevan
N. Natarajan
author_sort C. Sivapragasam
title Real-time monitoring as an adaptive strategy towards green treatment of textile effluent using biosorbent from Acalypha indica
title_short Real-time monitoring as an adaptive strategy towards green treatment of textile effluent using biosorbent from Acalypha indica
title_full Real-time monitoring as an adaptive strategy towards green treatment of textile effluent using biosorbent from Acalypha indica
title_fullStr Real-time monitoring as an adaptive strategy towards green treatment of textile effluent using biosorbent from Acalypha indica
title_full_unstemmed Real-time monitoring as an adaptive strategy towards green treatment of textile effluent using biosorbent from Acalypha indica
title_sort real-time monitoring as an adaptive strategy towards green treatment of textile effluent using biosorbent from acalypha indica
publisher IWA Publishing
publishDate 2021
url https://doaj.org/article/6de6386711b54835a76cc81f60877f83
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