Heavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of Cu2+

In order to understand the behaviour of wastewater treatment plants with heavy metal presence, this study evaluates the treatment process in the presence of heavy metals (Cu2+ as a case study) and compares it with the absence of heavy metals. An activated sludge model is improved by means of incorpo...

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Autores principales:	Magdi Buaisha, Saziye Balku, Şeniz Özalp-Yaman
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	alternating systems asm3 autotrophs copper inhibition heterotrophs Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/11c36bf2945f45418cb33b3e8ae6b472
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id	oai:doaj.org-article:11c36bf2945f45418cb33b3e8ae6b472
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spelling	oai:doaj.org-article:11c36bf2945f45418cb33b3e8ae6b4722021-11-06T11:18:18ZHeavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of Cu2+0273-12231996-973210.2166/wst.2021.276https://doaj.org/article/11c36bf2945f45418cb33b3e8ae6b4722021-08-01T00:00:00Zhttp://wst.iwaponline.com/content/84/4/892https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732In order to understand the behaviour of wastewater treatment plants with heavy metal presence, this study evaluates the treatment process in the presence of heavy metals (Cu2+ as a case study) and compares it with the absence of heavy metals. An activated sludge model is improved by means of incorporating other novel inhibitory kinetic and settler models for this evaluation. To achieve this goal, a simulation algorithm is developed using the MATLAB code to detect any heavy metal influence on the aerobic and anoxic growth of heterotrophic and autotrophic biomass. The code also allows for a comparison of treatment plant performance with and without Cu2+ in both conventional and alternating systems. The results reveal that the presence of heavy metals, in this study for Cu2+ at 0.5 mg/L, in a biological treatment system, has an inhibitory effect on the heterotrophic bacteria but more so on the autotrophic bacteria growth and it prevents nitrification and denitrification, thus having a negative effect on the nitrogen removal in the alternating systems. HIGHLIGHTS A simulation algorithm is developed using the MATLAB code.; The wasterwater treatment plants process is evaluated in the presence of Cu2+.; An ASM is improved by incorporation of inhibitory kinetic and settler models.; Heavy metal influence on heterotrophic and autotrophic biomass is assessed.; WWTP performance in conventional and alternating systems is determined.;Magdi BuaishaSaziye BalkuŞeniz Özalp-YamanIWA Publishingarticlealternating systemsasm3autotrophscopper inhibitionheterotrophsEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 4, Pp 892-905 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	alternating systems asm3 autotrophs copper inhibition heterotrophs Environmental technology. Sanitary engineering TD1-1066
spellingShingle	alternating systems asm3 autotrophs copper inhibition heterotrophs Environmental technology. Sanitary engineering TD1-1066 Magdi Buaisha Saziye Balku Şeniz Özalp-Yaman Heavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of Cu2+
description	In order to understand the behaviour of wastewater treatment plants with heavy metal presence, this study evaluates the treatment process in the presence of heavy metals (Cu2+ as a case study) and compares it with the absence of heavy metals. An activated sludge model is improved by means of incorporating other novel inhibitory kinetic and settler models for this evaluation. To achieve this goal, a simulation algorithm is developed using the MATLAB code to detect any heavy metal influence on the aerobic and anoxic growth of heterotrophic and autotrophic biomass. The code also allows for a comparison of treatment plant performance with and without Cu2+ in both conventional and alternating systems. The results reveal that the presence of heavy metals, in this study for Cu2+ at 0.5 mg/L, in a biological treatment system, has an inhibitory effect on the heterotrophic bacteria but more so on the autotrophic bacteria growth and it prevents nitrification and denitrification, thus having a negative effect on the nitrogen removal in the alternating systems. HIGHLIGHTS A simulation algorithm is developed using the MATLAB code.; The wasterwater treatment plants process is evaluated in the presence of Cu2+.; An ASM is improved by incorporation of inhibitory kinetic and settler models.; Heavy metal influence on heterotrophic and autotrophic biomass is assessed.; WWTP performance in conventional and alternating systems is determined.;
format	article
author	Magdi Buaisha Saziye Balku Şeniz Özalp-Yaman
author_facet	Magdi Buaisha Saziye Balku Şeniz Özalp-Yaman
author_sort	Magdi Buaisha
title	Heavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of Cu2+
title_short	Heavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of Cu2+
title_full	Heavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of Cu2+
title_fullStr	Heavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of Cu2+
title_full_unstemmed	Heavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of Cu2+
title_sort	heavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of cu2+
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/11c36bf2945f45418cb33b3e8ae6b472
work_keys_str_mv	AT magdibuaisha heavymetalinhibitiononanalternatingactivatedsludgesystemanditscomparisontoconventionalmethodscasestudyofcu2 AT saziyebalku heavymetalinhibitiononanalternatingactivatedsludgesystemanditscomparisontoconventionalmethodscasestudyofcu2 AT senizozalpyaman heavymetalinhibitiononanalternatingactivatedsludgesystemanditscomparisontoconventionalmethodscasestudyofcu2
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Heavy metal inhibition on an alternating activated sludge system and its comparison to conventional methods: case study of Cu2+

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