Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture

This study aimed to optimize conditions influencing the removal of chemical oxygen demand (COD) and ammonia-N in municipal wastewater by using acclimatized mixed culture (AMC). Two-level factorial analysis was used to investigate the factors affecting the degradation of COD and ammonia-N (%); ratio...

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Main Authors: Ya'acob, Amirah, Zainol, N., Aziz, Nor Hazwani
Format: Article
Language:English
Published: Elsevier Ltd 2022
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/35131/1/Application%20of%20response%20surface%20methodology%20for%20COD%20and%20ammonia%20removal.pdf
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author Ya'acob, Amirah
Zainol, N.
Aziz, Nor Hazwani
author_facet Ya'acob, Amirah
Zainol, N.
Aziz, Nor Hazwani
author_sort Ya'acob, Amirah
collection UMP
description This study aimed to optimize conditions influencing the removal of chemical oxygen demand (COD) and ammonia-N in municipal wastewater by using acclimatized mixed culture (AMC). Two-level factorial analysis was used to investigate the factors affecting the degradation of COD and ammonia-N (%); ratio of synthetic wastewater (SW) to acclimatized mixed culture (AMC) (1:1 and 3:1), presence and absence of support media (Yes and No), agitation (0 rpm and 100 rpm) and hydraulic retention time (HRT) (2 and 5 days). A central composite design (CCD) under response surface methodology (RSM) determined the optimum agitation (0 rpm and 100 rpm) and retention time (2 and 5 days). The best conditions were at 3:1 of SW: AMC ratio, 100 rpm agitation, without support media, and 5 days retention time. COD and ammonia-N removal achieved until 57.23% and 43.20%, respectively. Optimization study showed the optimum conditions for COD and ammonia-N removal were obtained at 150 rpm agitation speed and 5 days of retention time, at 70.41% and 64.29% respectively. This study discovers the conditions that affect the COD and ammonia-N removal in the municipal wastewater using acclimatized mixed culture.
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spelling UMPir351312022-10-07T08:19:11Z http://umpir.ump.edu.my/id/eprint/35131/ Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture Ya'acob, Amirah Zainol, N. Aziz, Nor Hazwani QD Chemistry TA Engineering (General). Civil engineering (General) TP Chemical technology This study aimed to optimize conditions influencing the removal of chemical oxygen demand (COD) and ammonia-N in municipal wastewater by using acclimatized mixed culture (AMC). Two-level factorial analysis was used to investigate the factors affecting the degradation of COD and ammonia-N (%); ratio of synthetic wastewater (SW) to acclimatized mixed culture (AMC) (1:1 and 3:1), presence and absence of support media (Yes and No), agitation (0 rpm and 100 rpm) and hydraulic retention time (HRT) (2 and 5 days). A central composite design (CCD) under response surface methodology (RSM) determined the optimum agitation (0 rpm and 100 rpm) and retention time (2 and 5 days). The best conditions were at 3:1 of SW: AMC ratio, 100 rpm agitation, without support media, and 5 days retention time. COD and ammonia-N removal achieved until 57.23% and 43.20%, respectively. Optimization study showed the optimum conditions for COD and ammonia-N removal were obtained at 150 rpm agitation speed and 5 days of retention time, at 70.41% and 64.29% respectively. This study discovers the conditions that affect the COD and ammonia-N removal in the municipal wastewater using acclimatized mixed culture. Elsevier Ltd 2022-06 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/35131/1/Application%20of%20response%20surface%20methodology%20for%20COD%20and%20ammonia%20removal.pdf Ya'acob, Amirah and Zainol, N. and Aziz, Nor Hazwani (2022) Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture. Heliyon, 8 (6). pp. 1-7. ISSN 2405-8440. (Published) https://doi.org/10.1016/j.heliyon.2022.e09685 https://doi.org/10.1016/j.heliyon.2022.e09685
spellingShingle QD Chemistry
TA Engineering (General). Civil engineering (General)
TP Chemical technology
Ya'acob, Amirah
Zainol, N.
Aziz, Nor Hazwani
Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture
title Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture
title_full Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture
title_fullStr Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture
title_full_unstemmed Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture
title_short Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture
title_sort application of response surface methodology for cod and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture
topic QD Chemistry
TA Engineering (General). Civil engineering (General)
TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/35131/1/Application%20of%20response%20surface%20methodology%20for%20COD%20and%20ammonia%20removal.pdf
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AT aziznorhazwani applicationofresponsesurfacemethodologyforcodandammoniaremovalfrommunicipalwastewatertreatmentplantusingacclimatizedmixedculture