Species and distribution of inorganic and organic phosphorus in enhanced phosphorus removal aerobic granular sludge

Wenli Huang; Weiwei Huang; Huifang Li; Zhongfang Lei; Zhenya Zhang; Joo Hwa Tay; Duu-Jong Lee

doi:10.1016/j.biortech.2015.06.120

Species and distribution of inorganic and organic phosphorus in enhanced phosphorus removal aerobic granular sludge

Wenli Huang, Weiwei Huang, Huifang Li, Zhongfang Lei, Zhenya Zhang^*, Joo Hwa Tay, Duu-Jong Lee

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

103 Citations (Scopus)

Abstract

The species and distribution of phosphorus (P) in an enhanced biological phosphorus removal (EBPR)–aerobic granular sludge (AGS) were fractionated and further analyzed. Results showed that microbial cells, extracellular polymeric substances (EPS) and mineral precipitates contributed about 73.7%, 17.6% and 5.3–6.4% to the total P (TP) of EBPR–AGS, respectively. Inorganic P (IP) species were orthophosphate, pyrophosphate and polyphosphate among which polyphosphate was the major P species in the AGS, cells and EPS. Monoester and diester phosphates were identified as the organic P (OP) species in the AGS and cells. Hydroxyapatite (Ca₅(PO₄)₃OH) and calcium phosphate (Ca₂(PO₄)₃) were the dominant P minerals accumulated in the core of the granules. Cells along with polyphosphate were mainly in the outer layer of AGS while EPS were distributed in the whole granules. Based on the above results, the distribution of IP and OP species in AGS has been conceived.

Original language	English
Pages (from-to)	549-552
Journal	Bioresource Technology
Volume	193
DOIs	https://doi.org/10.1016/j.biortech.2015.06.120
Publication status	Published - 1 Oct 2015
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Research Keywords

Aerobic granules
Enhanced biological phosphorus removal
P species
Phosphorus-31 nuclear magnetic resonance (31P NMR)

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10.1016/j.biortech.2015.06.120

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title = "Species and distribution of inorganic and organic phosphorus in enhanced phosphorus removal aerobic granular sludge",

abstract = "The species and distribution of phosphorus (P) in an enhanced biological phosphorus removal (EBPR)–aerobic granular sludge (AGS) were fractionated and further analyzed. Results showed that microbial cells, extracellular polymeric substances (EPS) and mineral precipitates contributed about 73.7%, 17.6% and 5.3–6.4% to the total P (TP) of EBPR–AGS, respectively. Inorganic P (IP) species were orthophosphate, pyrophosphate and polyphosphate among which polyphosphate was the major P species in the AGS, cells and EPS. Monoester and diester phosphates were identified as the organic P (OP) species in the AGS and cells. Hydroxyapatite (Ca5(PO4)3OH) and calcium phosphate (Ca2(PO4)3) were the dominant P minerals accumulated in the core of the granules. Cells along with polyphosphate were mainly in the outer layer of AGS while EPS were distributed in the whole granules. Based on the above results, the distribution of IP and OP species in AGS has been conceived.",

keywords = "Aerobic granules, Enhanced biological phosphorus removal, P species, Phosphorus-31 nuclear magnetic resonance (31P NMR)",

author = "Wenli Huang and Weiwei Huang and Huifang Li and Zhongfang Lei and Zhenya Zhang and Tay, {Joo Hwa} and Duu-Jong Lee",

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TY - JOUR

T1 - Species and distribution of inorganic and organic phosphorus in enhanced phosphorus removal aerobic granular sludge

AU - Huang, Wenli

AU - Huang, Weiwei

AU - Li, Huifang

AU - Lei, Zhongfang

AU - Zhang, Zhenya

AU - Tay, Joo Hwa

AU - Lee, Duu-Jong

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2015/10/1

Y1 - 2015/10/1

N2 - The species and distribution of phosphorus (P) in an enhanced biological phosphorus removal (EBPR)–aerobic granular sludge (AGS) were fractionated and further analyzed. Results showed that microbial cells, extracellular polymeric substances (EPS) and mineral precipitates contributed about 73.7%, 17.6% and 5.3–6.4% to the total P (TP) of EBPR–AGS, respectively. Inorganic P (IP) species were orthophosphate, pyrophosphate and polyphosphate among which polyphosphate was the major P species in the AGS, cells and EPS. Monoester and diester phosphates were identified as the organic P (OP) species in the AGS and cells. Hydroxyapatite (Ca5(PO4)3OH) and calcium phosphate (Ca2(PO4)3) were the dominant P minerals accumulated in the core of the granules. Cells along with polyphosphate were mainly in the outer layer of AGS while EPS were distributed in the whole granules. Based on the above results, the distribution of IP and OP species in AGS has been conceived.

AB - The species and distribution of phosphorus (P) in an enhanced biological phosphorus removal (EBPR)–aerobic granular sludge (AGS) were fractionated and further analyzed. Results showed that microbial cells, extracellular polymeric substances (EPS) and mineral precipitates contributed about 73.7%, 17.6% and 5.3–6.4% to the total P (TP) of EBPR–AGS, respectively. Inorganic P (IP) species were orthophosphate, pyrophosphate and polyphosphate among which polyphosphate was the major P species in the AGS, cells and EPS. Monoester and diester phosphates were identified as the organic P (OP) species in the AGS and cells. Hydroxyapatite (Ca5(PO4)3OH) and calcium phosphate (Ca2(PO4)3) were the dominant P minerals accumulated in the core of the granules. Cells along with polyphosphate were mainly in the outer layer of AGS while EPS were distributed in the whole granules. Based on the above results, the distribution of IP and OP species in AGS has been conceived.

KW - Aerobic granules

KW - Enhanced biological phosphorus removal

KW - P species

KW - Phosphorus-31 nuclear magnetic resonance (31P NMR)

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DO - 10.1016/j.biortech.2015.06.120

M3 - RGC 21 - Publication in refereed journal

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SN - 0960-8524

VL - 193

SP - 549

EP - 552

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Species and distribution of inorganic and organic phosphorus in enhanced phosphorus removal aerobic granular sludge

Abstract

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Research Keywords

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