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Nutrient recovery and fractionation of anaerobic digester effluents employing pilot scale membrane technology / Myrto-Panagiota Zacharof, Stephen J. Mandale, Darren Oatley-Radcliffe, Robert Lovitt

Journal of Water Process Engineering, Volume: 31, Start page: 100846

Swansea University Authors: Darren Oatley-Radcliffe, Robert Lovitt

Abstract

Anaerobic Digester (AD) waste, known as digestate (spent anaerobically digested effluents) of agricultural origin, was collected for a feasibility study on the use of membrane filtration to fractionate phosphate and ammonia from digestate into nutrient streams. The digestate was pre-treated to remov...

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Published in: Journal of Water Process Engineering
ISSN: 2214-7144
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa50288
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spelling 2019-07-12T09:01:34.7799007 v2 50288 2019-05-09 Nutrient recovery and fractionation of anaerobic digester effluents employing pilot scale membrane technology 6dfb5ec2932455c778a5aa168c18cffd 0000-0003-4116-723X Darren Oatley-Radcliffe Darren Oatley-Radcliffe true false 130c3c35f45826bb0f4836305e8e51c7 Robert Lovitt Robert Lovitt true false 2019-05-09 CHEG Anaerobic Digester (AD) waste, known as digestate (spent anaerobically digested effluents) of agricultural origin, was collected for a feasibility study on the use of membrane filtration to fractionate phosphate and ammonia from digestate into nutrient streams. The digestate was pre-treated to remove bulk solids and then filtered using diafiltration (DF) with ultrafiltration (UF) (5.65 psi TMP) and then nanofiltration (NF) (operating pressure 253.82 psi). Having set the pre-treated effluents at pH 4.0, retention of phosphate reached 6.78 mmols L−1 during UF with lower values being achieved with repeated DF steps. In contrast, nitrogen retention was lower at 8.21 mmols L-1 and was continuously dropping at each DF step. During NF phosphorus was shown to be strongly retained by the membrane at 31.8 mmols L−1, while retention of ammonium was low at 13.4 mmols L-1 demonstrating the potential for this combination of membrane types for fractionating high value components from AD waste. Journal Article Journal of Water Process Engineering 31 100846 2214-7144 Sludge, NF, UF, Phosphate, Nitrogen, AD 31 12 2019 2019-12-31 10.1016/j.jwpe.2019.100846 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University 2019-07-12T09:01:34.7799007 2019-05-09T10:00:40.6461874 College of Engineering Engineering Myrto-Panagiota Zacharof 1 Stephen J. Mandale 2 Darren Oatley-Radcliffe 0000-0003-4116-723X 3 Robert Lovitt 4 0050288-12072019090048.pdf zacharof2019.pdf 2019-07-12T09:00:48.3430000 Output 1766957 application/pdf Accepted Manuscript true 2020-05-07T00:00:00.0000000 false eng
title Nutrient recovery and fractionation of anaerobic digester effluents employing pilot scale membrane technology
spellingShingle Nutrient recovery and fractionation of anaerobic digester effluents employing pilot scale membrane technology
Darren, Oatley-Radcliffe
Robert, Lovitt
title_short Nutrient recovery and fractionation of anaerobic digester effluents employing pilot scale membrane technology
title_full Nutrient recovery and fractionation of anaerobic digester effluents employing pilot scale membrane technology
title_fullStr Nutrient recovery and fractionation of anaerobic digester effluents employing pilot scale membrane technology
title_full_unstemmed Nutrient recovery and fractionation of anaerobic digester effluents employing pilot scale membrane technology
title_sort Nutrient recovery and fractionation of anaerobic digester effluents employing pilot scale membrane technology
author_id_str_mv 6dfb5ec2932455c778a5aa168c18cffd
130c3c35f45826bb0f4836305e8e51c7
author_id_fullname_str_mv 6dfb5ec2932455c778a5aa168c18cffd_***_Darren, Oatley-Radcliffe
130c3c35f45826bb0f4836305e8e51c7_***_Robert, Lovitt
author Darren, Oatley-Radcliffe
Robert, Lovitt
author2 Myrto-Panagiota Zacharof
Stephen J. Mandale
Darren Oatley-Radcliffe
Robert Lovitt
format Journal article
container_title Journal of Water Process Engineering
container_volume 31
container_start_page 100846
publishDate 2019
institution Swansea University
issn 2214-7144
doi_str_mv 10.1016/j.jwpe.2019.100846
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description Anaerobic Digester (AD) waste, known as digestate (spent anaerobically digested effluents) of agricultural origin, was collected for a feasibility study on the use of membrane filtration to fractionate phosphate and ammonia from digestate into nutrient streams. The digestate was pre-treated to remove bulk solids and then filtered using diafiltration (DF) with ultrafiltration (UF) (5.65 psi TMP) and then nanofiltration (NF) (operating pressure 253.82 psi). Having set the pre-treated effluents at pH 4.0, retention of phosphate reached 6.78 mmols L−1 during UF with lower values being achieved with repeated DF steps. In contrast, nitrogen retention was lower at 8.21 mmols L-1 and was continuously dropping at each DF step. During NF phosphorus was shown to be strongly retained by the membrane at 31.8 mmols L−1, while retention of ammonium was low at 13.4 mmols L-1 demonstrating the potential for this combination of membrane types for fractionating high value components from AD waste.
published_date 2019-12-31T04:11:00Z
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