$Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract$
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Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract

Background Treating latex rubber sheet wastewater often leads to the generation of a rotten-egg odor from toxic H2S. To increase the treatment efficiency and eliminate H2S, purple nonsulfur bacteria (PNSB), prepared by supplementing non-sterile rubber sheet wastewater (RAW) with fermented pineapple...

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Autores principales:	Kornochalert,Nastee, Kantachote,Duangporn, Chaiprapat,Sumate, Techkarnjanaruk,Somkiet
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2014
Materias:	Bioremediation Fermented plant extract Response surface methodology Rotten-egg odor Rubber wastewater
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000400006
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spelling	oai:scielo:S0717-345820140004000062014-09-02Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extractKornochalert,NasteeKantachote,DuangpornChaiprapat,SumateTechkarnjanaruk,Somkiet Bioremediation Fermented plant extract Response surface methodology Rotten-egg odor Rubber wastewater Background Treating latex rubber sheet wastewater often leads to the generation of a rotten-egg odor from toxic H2S. To increase the treatment efficiency and eliminate H2S, purple nonsulfur bacteria (PNSB), prepared by supplementing non-sterile rubber sheet wastewater (RAW) with fermented pineapple extract (FPE), were used to treat this wastewater under microaerobic light conditions. The following 3 independent variables: chemical oxygen demand (COD), initial pH and FPE dose were investigated using the Box-Behnken design to find optimal conditions for stimulating the growth of indigenous PNSB (PNSBsi). Results The addition of 2.0% FPE into RAW, which had a COD of 2000 mg L- 1 and an initial pH of 7.0, significantly decreased oxidation reduction potential (ORP) value and stimulated PNSBsi to reach a maximum of 7.8 log cfu mL- 1 within 2 d. Consequently, these PNSBsi, used as inoculants, were investigated for their ability to treat the wastewater under microaerobic light conditions. A central composite design was used to determine the optimal conditions for the wastewater treatment. These proved to be 7% PNSBsi, 0.8% FPE and 4 d retention time and this combination resulted in a reduction of 91% for COD, 75% for suspended solids, 61% for total sulfide while H2S was not detected. Results of abiotic control and treatment sets indicated that H2S was produced by heterotrophic bacteria and it was then effectively deactivated by PNSBsi. Conclusions The stimulation of PNSB growth by FPE under light condition was to lower ORP, and PNSBsi proved to be effective for treating the wastewater.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.17 n.4 20142014-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000400006en10.1016/j.ejbt.2014.06.003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Bioremediation Fermented plant extract Response surface methodology Rotten-egg odor Rubber wastewater
spellingShingle	Bioremediation Fermented plant extract Response surface methodology Rotten-egg odor Rubber wastewater Kornochalert,Nastee Kantachote,Duangporn Chaiprapat,Sumate Techkarnjanaruk,Somkiet Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract
description	Background Treating latex rubber sheet wastewater often leads to the generation of a rotten-egg odor from toxic H2S. To increase the treatment efficiency and eliminate H2S, purple nonsulfur bacteria (PNSB), prepared by supplementing non-sterile rubber sheet wastewater (RAW) with fermented pineapple extract (FPE), were used to treat this wastewater under microaerobic light conditions. The following 3 independent variables: chemical oxygen demand (COD), initial pH and FPE dose were investigated using the Box-Behnken design to find optimal conditions for stimulating the growth of indigenous PNSB (PNSBsi). Results The addition of 2.0% FPE into RAW, which had a COD of 2000 mg L- 1 and an initial pH of 7.0, significantly decreased oxidation reduction potential (ORP) value and stimulated PNSBsi to reach a maximum of 7.8 log cfu mL- 1 within 2 d. Consequently, these PNSBsi, used as inoculants, were investigated for their ability to treat the wastewater under microaerobic light conditions. A central composite design was used to determine the optimal conditions for the wastewater treatment. These proved to be 7% PNSBsi, 0.8% FPE and 4 d retention time and this combination resulted in a reduction of 91% for COD, 75% for suspended solids, 61% for total sulfide while H2S was not detected. Results of abiotic control and treatment sets indicated that H2S was produced by heterotrophic bacteria and it was then effectively deactivated by PNSBsi. Conclusions The stimulation of PNSB growth by FPE under light condition was to lower ORP, and PNSBsi proved to be effective for treating the wastewater.
author	Kornochalert,Nastee Kantachote,Duangporn Chaiprapat,Sumate Techkarnjanaruk,Somkiet
author_facet	Kornochalert,Nastee Kantachote,Duangporn Chaiprapat,Sumate Techkarnjanaruk,Somkiet
author_sort	Kornochalert,Nastee
title	Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract
title_short	Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract
title_full	Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract
title_fullStr	Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract
title_full_unstemmed	Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract
title_sort	bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000400006
work_keys_str_mv	AT kornochalertnastee bioaugmentationoflatexrubbersheetwastewatertreatmentwithstimulatedindigenouspurplenonsulfurbacteriabyfermentedpineappleextract AT kantachoteduangporn bioaugmentationoflatexrubbersheetwastewatertreatmentwithstimulatedindigenouspurplenonsulfurbacteriabyfermentedpineappleextract AT chaiprapatsumate bioaugmentationoflatexrubbersheetwastewatertreatmentwithstimulatedindigenouspurplenonsulfurbacteriabyfermentedpineappleextract AT techkarnjanaruksomkiet bioaugmentationoflatexrubbersheetwastewatertreatmentwithstimulatedindigenouspurplenonsulfurbacteriabyfermentedpineappleextract
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Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract

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