Electrochemical phosphorus removal and recovery

Research output: Thesisinternal PhD, WU

Abstract

Phosphorus removal and recovery from waste streams is essential for closing the loop of phosphorus. In this thesis, we propose an innovative membrane-free electrochemical system, which can potentially achieve the removal and recovery of phosphorus from wastewaters in the form of recoverable calcium phosphate. We studied the fundamentals, efficiency, and energy consumption of electrochemical phosphorus removal and recovery in both synthetic solutions and real wastewaters. We showed electrochemically induced calcium phosphate precipitation depends on the local pH. We demonstrated the feasibility of electrochemical phosphorus recovery for both orthophosphate and no-orthophosphates. We concluded that a low current density and high phosphorus concentration enables energy-efficient phosphorus recovery. To our knowledge, this is the first systematic study focusing on electrochemical phosphorus removal and recovery. The insights we have gained from this thesis present therefore a significant step towards the potential application of this new technique.

Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • Wageningen University
Supervisors/Advisors
  • Buisman, Cees, Promotor
  • van der Weijden, Renata, Co-promotor
  • Saakes, M., Co-promotor, External person
Award date6 Dec 2019
Place of PublicationWageningen
Publisher
Print ISBNs9789463950473
DOIs
Publication statusPublished - 2019

Fingerprint

phosphorus
orthophosphate
calcium
phosphate
wastewater
removal
density current
membrane
energy
thesis

Cite this

Lei, Yang. / Electrochemical phosphorus removal and recovery. Wageningen : Wageningen University, 2019. 247 p.
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title = "Electrochemical phosphorus removal and recovery",
abstract = "Phosphorus removal and recovery from waste streams is essential for closing the loop of phosphorus. In this thesis, we propose an innovative membrane-free electrochemical system, which can potentially achieve the removal and recovery of phosphorus from wastewaters in the form of recoverable calcium phosphate. We studied the fundamentals, efficiency, and energy consumption of electrochemical phosphorus removal and recovery in both synthetic solutions and real wastewaters. We showed electrochemically induced calcium phosphate precipitation depends on the local pH. We demonstrated the feasibility of electrochemical phosphorus recovery for both orthophosphate and no-orthophosphates. We concluded that a low current density and high phosphorus concentration enables energy-efficient phosphorus recovery. To our knowledge, this is the first systematic study focusing on electrochemical phosphorus removal and recovery. The insights we have gained from this thesis present therefore a significant step towards the potential application of this new technique.",
author = "Yang Lei",
note = "WU thesis 7399 Includes bibliographical references. - With summary in English",
year = "2019",
doi = "10.18174/496730",
language = "English",
isbn = "9789463950473",
publisher = "Wageningen University",
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}

Lei, Y 2019, 'Electrochemical phosphorus removal and recovery', Doctor of Philosophy, Wageningen University, Wageningen. https://doi.org/10.18174/496730

Electrochemical phosphorus removal and recovery. / Lei, Yang.

Wageningen : Wageningen University, 2019. 247 p.

Research output: Thesisinternal PhD, WU

TY - THES

T1 - Electrochemical phosphorus removal and recovery

AU - Lei, Yang

N1 - WU thesis 7399 Includes bibliographical references. - With summary in English

PY - 2019

Y1 - 2019

N2 - Phosphorus removal and recovery from waste streams is essential for closing the loop of phosphorus. In this thesis, we propose an innovative membrane-free electrochemical system, which can potentially achieve the removal and recovery of phosphorus from wastewaters in the form of recoverable calcium phosphate. We studied the fundamentals, efficiency, and energy consumption of electrochemical phosphorus removal and recovery in both synthetic solutions and real wastewaters. We showed electrochemically induced calcium phosphate precipitation depends on the local pH. We demonstrated the feasibility of electrochemical phosphorus recovery for both orthophosphate and no-orthophosphates. We concluded that a low current density and high phosphorus concentration enables energy-efficient phosphorus recovery. To our knowledge, this is the first systematic study focusing on electrochemical phosphorus removal and recovery. The insights we have gained from this thesis present therefore a significant step towards the potential application of this new technique.

AB - Phosphorus removal and recovery from waste streams is essential for closing the loop of phosphorus. In this thesis, we propose an innovative membrane-free electrochemical system, which can potentially achieve the removal and recovery of phosphorus from wastewaters in the form of recoverable calcium phosphate. We studied the fundamentals, efficiency, and energy consumption of electrochemical phosphorus removal and recovery in both synthetic solutions and real wastewaters. We showed electrochemically induced calcium phosphate precipitation depends on the local pH. We demonstrated the feasibility of electrochemical phosphorus recovery for both orthophosphate and no-orthophosphates. We concluded that a low current density and high phosphorus concentration enables energy-efficient phosphorus recovery. To our knowledge, this is the first systematic study focusing on electrochemical phosphorus removal and recovery. The insights we have gained from this thesis present therefore a significant step towards the potential application of this new technique.

U2 - 10.18174/496730

DO - 10.18174/496730

M3 - internal PhD, WU

SN - 9789463950473

PB - Wageningen University

CY - Wageningen

ER -