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Characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission

Photosynthetic process compromises the most effective and natural way for carbon recycling, in which photosynthetic bacteria utilized carbon dioxide (CO2) during the wastewater treatment processes. The aim of this study was to characterize phototrophic microbial granule in order to minimize CO2. A 3...

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Main Authors: Salmiati, Salmiati, Dahalan, Farrah Aini, Mohamed Najib, Mohamed Zuhaili, Salim, Mohd. Razman, Ujang, Zaini
Format: Article
Published: Elsevier Ltd. 2015
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/58027/
http://dx.doi.org/10.1016/j.ibiod.2015.04.010
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spelling my.utm.580272022-04-07T06:21:03Z http://eprints.utm.my/id/eprint/58027/ Characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission Salmiati, Salmiati Dahalan, Farrah Aini Mohamed Najib, Mohamed Zuhaili Salim, Mohd. Razman Ujang, Zaini TA Engineering (General). Civil engineering (General) Photosynthetic process compromises the most effective and natural way for carbon recycling, in which photosynthetic bacteria utilized carbon dioxide (CO2) during the wastewater treatment processes. The aim of this study was to characterize phototrophic microbial granule in order to minimize CO2. A 3-L bioreactor phototrophic Sequencing Batch Reactor (SBRP) was applied to produce phototrophic aerobic granular sludge (AGSP) and the biomass concentration increased from 3 to 14 g L−1. Such growth has resulted in a maximum settling velocity of 40 mh−1 with granule average size of approximately 2.0 mm. The high settling velocity was found to be attributed by the smooth, compact, and regular characteristics of the aerobic granules. High magnification microscopic analysis revealed that AGSP was dominated by cocci-shaped bacteria embedded within the extracellular polymeric substances (EPS). Detailed observation on the structure of the AGSP showed the presence of 30 μm of cavity to allow nutrients and gas exchanges within the aerobic granule. Scanning Electron Microscope-Energy-Dispersive X-ray (SEM-EDX) examination showed AGSP composed of different types of inorganic and organic compounds. AGSP achieved 92% of CO2 reduction, indicating that CO2 biofixation can be performed facultatively by photosynthetic bacteria in an SBR based on the nomenclature of microbial species obtained. Elsevier Ltd. 2015 Article PeerReviewed Salmiati, Salmiati and Dahalan, Farrah Aini and Mohamed Najib, Mohamed Zuhaili and Salim, Mohd. Razman and Ujang, Zaini (2015) Characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission. Intertiol Biodeterioration & Biodegradation, 102 . pp. 15-23. ISSN 9648-305 http://dx.doi.org/10.1016/j.ibiod.2015.04.010 DOI: 10.1016/j.ibiod.2015.04.010
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Salmiati, Salmiati
Dahalan, Farrah Aini
Mohamed Najib, Mohamed Zuhaili
Salim, Mohd. Razman
Ujang, Zaini
Characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission
description Photosynthetic process compromises the most effective and natural way for carbon recycling, in which photosynthetic bacteria utilized carbon dioxide (CO2) during the wastewater treatment processes. The aim of this study was to characterize phototrophic microbial granule in order to minimize CO2. A 3-L bioreactor phototrophic Sequencing Batch Reactor (SBRP) was applied to produce phototrophic aerobic granular sludge (AGSP) and the biomass concentration increased from 3 to 14 g L−1. Such growth has resulted in a maximum settling velocity of 40 mh−1 with granule average size of approximately 2.0 mm. The high settling velocity was found to be attributed by the smooth, compact, and regular characteristics of the aerobic granules. High magnification microscopic analysis revealed that AGSP was dominated by cocci-shaped bacteria embedded within the extracellular polymeric substances (EPS). Detailed observation on the structure of the AGSP showed the presence of 30 μm of cavity to allow nutrients and gas exchanges within the aerobic granule. Scanning Electron Microscope-Energy-Dispersive X-ray (SEM-EDX) examination showed AGSP composed of different types of inorganic and organic compounds. AGSP achieved 92% of CO2 reduction, indicating that CO2 biofixation can be performed facultatively by photosynthetic bacteria in an SBR based on the nomenclature of microbial species obtained.
format Article
author Salmiati, Salmiati
Dahalan, Farrah Aini
Mohamed Najib, Mohamed Zuhaili
Salim, Mohd. Razman
Ujang, Zaini
author_facet Salmiati, Salmiati
Dahalan, Farrah Aini
Mohamed Najib, Mohamed Zuhaili
Salim, Mohd. Razman
Ujang, Zaini
author_sort Salmiati, Salmiati
title Characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission
title_short Characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission
title_full Characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission
title_fullStr Characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission
title_full_unstemmed Characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission
title_sort characteristics of developed granules containing phototrophic aerobic bacteria for minimizing carbon dioxide emission
publisher Elsevier Ltd.
publishDate 2015
url http://eprints.utm.my/id/eprint/58027/
http://dx.doi.org/10.1016/j.ibiod.2015.04.010
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score 13.211869

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