Analytical methods for soluble microbial products (SMP) and extracellular polymers (ECP) in wastewater treatment systems : a review

Effluents from biological processes contain a wide range of complex organic compounds, including soluble microbial products (SMP) and extracellular polymers (ECP), released during bacteria metabolism in mixed culture in bioreactors. It is important to clearly identify the primary components of SMPs...

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Main Authors: Kunacheva, Chinagarn, Stuckey, David C.
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2014
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Online Access:https://hdl.handle.net/10356/79516
http://hdl.handle.net/10220/24229
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-795162020-03-07T11:43:29Z Analytical methods for soluble microbial products (SMP) and extracellular polymers (ECP) in wastewater treatment systems : a review Kunacheva, Chinagarn Stuckey, David C. School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute DRNTU::Engineering::Environmental engineering::Water treatment Effluents from biological processes contain a wide range of complex organic compounds, including soluble microbial products (SMP) and extracellular polymers (ECP), released during bacteria metabolism in mixed culture in bioreactors. It is important to clearly identify the primary components of SMPs and ECPs in order to understand the fundamental mechanisms of biological activity that create these compounds, and how to reduce these compounds in the effluent. In addition, these compounds constitute the main foulants in membrane bioreactors which are being used more widely around the world. A review on the extraction of ECP, characterization, and identification of SMPs and ECPs is presented, and we summarize up-to-date pretreatments and analytical methods for SMPs. Most researchers have focused more on the overall properties of SMPs and ECPs such as their concentrations, molecular weight distribution, aromaticity, hydrophobic and hydrophilic properties, biodegradability, and toxicity characteristics. Many studies on the identification of effluent SMPs show that most of these compounds were not present in the influent, such as humic acids, polysaccharides, proteins, nucleic acids, organic acids, amino acids, exocellular enzymes, structural components of cells and products of energy metabolism. A few groups of researchers have been working on the identification of compounds in SMPs using advanced analytical techniques such as GC–MS, LC-IT-TOF-MS and MALDI-TOF-MS. However, there is still considerably more work needed to be done analytically to fully understand the chemical characteristics of SMPs and ECPs. Accepted version 2014-11-17T00:43:17Z 2019-12-06T13:27:14Z 2014-11-17T00:43:17Z 2019-12-06T13:27:14Z 2014 2014 Journal Article Kunacheva, C., & Stuckey, D. C. (2014). Analytical methods for soluble microbial products (SMP) and extracellular polymers (ECP) in wastewater treatment systems : a review. Water research, 61, 1-18. 0043-1354 https://hdl.handle.net/10356/79516 http://hdl.handle.net/10220/24229 10.1016/j.watres.2014.04.044 en Water research © 2014 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Water Research, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.watres.2014.04.044]. 36 p. + 6 p. tables application/pdf application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Environmental engineering::Water treatment
spellingShingle DRNTU::Engineering::Environmental engineering::Water treatment
Kunacheva, Chinagarn
Stuckey, David C.
Analytical methods for soluble microbial products (SMP) and extracellular polymers (ECP) in wastewater treatment systems : a review
description Effluents from biological processes contain a wide range of complex organic compounds, including soluble microbial products (SMP) and extracellular polymers (ECP), released during bacteria metabolism in mixed culture in bioreactors. It is important to clearly identify the primary components of SMPs and ECPs in order to understand the fundamental mechanisms of biological activity that create these compounds, and how to reduce these compounds in the effluent. In addition, these compounds constitute the main foulants in membrane bioreactors which are being used more widely around the world. A review on the extraction of ECP, characterization, and identification of SMPs and ECPs is presented, and we summarize up-to-date pretreatments and analytical methods for SMPs. Most researchers have focused more on the overall properties of SMPs and ECPs such as their concentrations, molecular weight distribution, aromaticity, hydrophobic and hydrophilic properties, biodegradability, and toxicity characteristics. Many studies on the identification of effluent SMPs show that most of these compounds were not present in the influent, such as humic acids, polysaccharides, proteins, nucleic acids, organic acids, amino acids, exocellular enzymes, structural components of cells and products of energy metabolism. A few groups of researchers have been working on the identification of compounds in SMPs using advanced analytical techniques such as GC–MS, LC-IT-TOF-MS and MALDI-TOF-MS. However, there is still considerably more work needed to be done analytically to fully understand the chemical characteristics of SMPs and ECPs.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Kunacheva, Chinagarn
Stuckey, David C.
format Article
author Kunacheva, Chinagarn
Stuckey, David C.
author_sort Kunacheva, Chinagarn
title Analytical methods for soluble microbial products (SMP) and extracellular polymers (ECP) in wastewater treatment systems : a review
title_short Analytical methods for soluble microbial products (SMP) and extracellular polymers (ECP) in wastewater treatment systems : a review
title_full Analytical methods for soluble microbial products (SMP) and extracellular polymers (ECP) in wastewater treatment systems : a review
title_fullStr Analytical methods for soluble microbial products (SMP) and extracellular polymers (ECP) in wastewater treatment systems : a review
title_full_unstemmed Analytical methods for soluble microbial products (SMP) and extracellular polymers (ECP) in wastewater treatment systems : a review
title_sort analytical methods for soluble microbial products (smp) and extracellular polymers (ecp) in wastewater treatment systems : a review
publishDate 2014
url https://hdl.handle.net/10356/79516
http://hdl.handle.net/10220/24229
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