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A tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to Polyaluminum chloride, and application in a pilot plant

Chemical composition and flocculation efficiency were investigated for a commercially produced tannin – based coagulant and flocculant (Tanfloc). The results of Fourier Transform Infrared Spectroscopy (FTIR) and Energy Dispersive Spectroscopy (EDX) confirmed what claimed about the chemical compositi...

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Main Authors: Hameed, Yasir Talib, Idris, Azni, Hussain, Siti Aslina, Abdullah, Norhafizah
Format: Article
Language:English
Published: Elsevier 2016
Online Access:http://psasir.upm.edu.my/id/eprint/54948/1/A%20tannin-based%20agent%20for%20coagulation%20and%20flocculation%20of%20municipal%20wastewater.pdf
http://psasir.upm.edu.my/id/eprint/54948/
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spelling my.upm.eprints.549482018-06-12T08:24:40Z http://psasir.upm.edu.my/id/eprint/54948/ A tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to Polyaluminum chloride, and application in a pilot plant Hameed, Yasir Talib Idris, Azni Hussain, Siti Aslina Abdullah, Norhafizah Chemical composition and flocculation efficiency were investigated for a commercially produced tannin – based coagulant and flocculant (Tanfloc). The results of Fourier Transform Infrared Spectroscopy (FTIR) and Energy Dispersive Spectroscopy (EDX) confirmed what claimed about the chemical composition of Tanfloc. For moderate polluted municipal wastewater investigated in both jar test and pilot plant, Tanfloc showed high turbidity removal efficiency of approximately 90%, while removal efficiencies of BOD5 and COD were around 60%. According to floc size distribution, Tanfloc was able to show distinct performance compared to Polyaluminum chloride (PAC). While 90% of flocs produced by Tanfloc were smaller than 144 micron, they were smaller than 96 micron for PAC. Practically, zeta potential measurement showed the cationic nature of Tanfloc and suggested coincidence of charge neutralization and another flocculation mechanism (bridging or patch flocculation). Sludge Volumetric Index (SVI) measurements were in agreement with the numbers found in the literature, and they were less than 160 mL/g. Calcium cation as flocculation aid showed significant improvement of flocculation efficiency compared to other cations. Finally Tanfloc showed competing performance compared to PAC in terms of turbidity, BOD5 and COD removal, floc size and sludge characteristics. Elsevier 2016 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54948/1/A%20tannin-based%20agent%20for%20coagulation%20and%20flocculation%20of%20municipal%20wastewater.pdf Hameed, Yasir Talib and Idris, Azni and Hussain, Siti Aslina and Abdullah, Norhafizah (2016) A tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to Polyaluminum chloride, and application in a pilot plant. Journal of Environmental Management, 184. pp. 494-503. ISSN 0301-4797; ESSN: 1095-8630 10.1016/j.jenvman.2016.10.033
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Chemical composition and flocculation efficiency were investigated for a commercially produced tannin – based coagulant and flocculant (Tanfloc). The results of Fourier Transform Infrared Spectroscopy (FTIR) and Energy Dispersive Spectroscopy (EDX) confirmed what claimed about the chemical composition of Tanfloc. For moderate polluted municipal wastewater investigated in both jar test and pilot plant, Tanfloc showed high turbidity removal efficiency of approximately 90%, while removal efficiencies of BOD5 and COD were around 60%. According to floc size distribution, Tanfloc was able to show distinct performance compared to Polyaluminum chloride (PAC). While 90% of flocs produced by Tanfloc were smaller than 144 micron, they were smaller than 96 micron for PAC. Practically, zeta potential measurement showed the cationic nature of Tanfloc and suggested coincidence of charge neutralization and another flocculation mechanism (bridging or patch flocculation). Sludge Volumetric Index (SVI) measurements were in agreement with the numbers found in the literature, and they were less than 160 mL/g. Calcium cation as flocculation aid showed significant improvement of flocculation efficiency compared to other cations. Finally Tanfloc showed competing performance compared to PAC in terms of turbidity, BOD5 and COD removal, floc size and sludge characteristics.
format Article
author Hameed, Yasir Talib
Idris, Azni
Hussain, Siti Aslina
Abdullah, Norhafizah
spellingShingle Hameed, Yasir Talib
Idris, Azni
Hussain, Siti Aslina
Abdullah, Norhafizah
A tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to Polyaluminum chloride, and application in a pilot plant
author_facet Hameed, Yasir Talib
Idris, Azni
Hussain, Siti Aslina
Abdullah, Norhafizah
author_sort Hameed, Yasir Talib
title A tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to Polyaluminum chloride, and application in a pilot plant
title_short A tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to Polyaluminum chloride, and application in a pilot plant
title_full A tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to Polyaluminum chloride, and application in a pilot plant
title_fullStr A tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to Polyaluminum chloride, and application in a pilot plant
title_full_unstemmed A tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to Polyaluminum chloride, and application in a pilot plant
title_sort tannin-based agent for coagulation and flocculation of municipal wastewater: chemical composition, performance assessment compared to polyaluminum chloride, and application in a pilot plant
publisher Elsevier
publishDate 2016
url http://psasir.upm.edu.my/id/eprint/54948/1/A%20tannin-based%20agent%20for%20coagulation%20and%20flocculation%20of%20municipal%20wastewater.pdf
http://psasir.upm.edu.my/id/eprint/54948/
_version_ 1643835754480140288
score 13.211869

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