Struvite precipitation from anaerobic sludge supernatant and mixed fresh/stale human urine

Fanzhe Zeng; Qingliang Zhao; Wenbiao Jin; Yuxi Liu; Kun Wang; Duu Jong Lee

doi:10.1016/j.cej.2018.03.088

Struvite precipitation from anaerobic sludge supernatant and mixed fresh/stale human urine

Fanzhe Zeng
, Qingliang Zhao^*
, Wenbiao Jin
, Yuxi Liu
, Kun Wang
, Duu Jong Lee

^*Corresponding author for this work

School of Environment

School of Environment, Harbin Institute of Technology
Harbin Institute of Technology Shenzhen
Harbin Institute of Technology
National Taiwan University of Science and Technology
National Taiwan University

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

Phosphorus recovery attracts increasing attentions because phosphorus is a non-renewable and exhausted resource. This study for the first time remarkably improves the efficiency of phosphorus recovery in the form of struvite using the mixture of two kinds of phosphorus-rich wastewater (i.e., anaerobic sludge supernatant and human urine). An optimal volumetric ratio (VR_s/f) of 1:9 of fresh and 10-d stale human urine could yield phosphorus recovery of 90.8% at [Mg²⁺]:[NH₄⁺-N]:[PO₄³⁻-P] = 1.2:1.05:1, pH 10, and reacting time 15 min. The SEM and XRD analyses confirmed the precipitates were struvite. Struvite precipitation was determined by relative supersaturation in both nucleation and crystal growth phases, with homogenous nucleation predominated in the latter phase. One liter of mixed urine could recover the PO₄³⁻-P content in 41.9 L of anaerobic sludge supernatant to form 182.3 g of struvite.

Original language	English
Pages (from-to)	254-261
Number of pages	8
Journal	Chemical Engineering Journal
Volume	344
DOIs	https://doi.org/10.1016/j.cej.2018.03.088
State	Published - 15 Jul 2018

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Anaerobic sludge supernatant
Human urine
Magnesium ammonium phosphate (MAP)
Phosphorus recovery
Struvite precipitation

Access to Document

10.1016/j.cej.2018.03.088

Cite this

@article{b14c50cf85734b97a123bd769440fea6,

title = "Struvite precipitation from anaerobic sludge supernatant and mixed fresh/stale human urine",

abstract = "Phosphorus recovery attracts increasing attentions because phosphorus is a non-renewable and exhausted resource. This study for the first time remarkably improves the efficiency of phosphorus recovery in the form of struvite using the mixture of two kinds of phosphorus-rich wastewater (i.e., anaerobic sludge supernatant and human urine). An optimal volumetric ratio (VRs/f) of 1:9 of fresh and 10-d stale human urine could yield phosphorus recovery of 90.8\% at [Mg2+]:[NH4+-N]:[PO43−-P] = 1.2:1.05:1, pH 10, and reacting time 15 min. The SEM and XRD analyses confirmed the precipitates were struvite. Struvite precipitation was determined by relative supersaturation in both nucleation and crystal growth phases, with homogenous nucleation predominated in the latter phase. One liter of mixed urine could recover the PO43−-P content in 41.9 L of anaerobic sludge supernatant to form 182.3 g of struvite.",

keywords = "Anaerobic sludge supernatant, Human urine, Magnesium ammonium phosphate (MAP), Phosphorus recovery, Struvite precipitation",

author = "Fanzhe Zeng and Qingliang Zhao and Wenbiao Jin and Yuxi Liu and Kun Wang and Lee, \{Duu Jong\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = jul,

day = "15",

doi = "10.1016/j.cej.2018.03.088",

language = "英语",

volume = "344",

pages = "254--261",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Struvite precipitation from anaerobic sludge supernatant and mixed fresh/stale human urine

AU - Zeng, Fanzhe

AU - Zhao, Qingliang

AU - Jin, Wenbiao

AU - Liu, Yuxi

AU - Wang, Kun

AU - Lee, Duu Jong

PY - 2018/7/15

Y1 - 2018/7/15

N2 - Phosphorus recovery attracts increasing attentions because phosphorus is a non-renewable and exhausted resource. This study for the first time remarkably improves the efficiency of phosphorus recovery in the form of struvite using the mixture of two kinds of phosphorus-rich wastewater (i.e., anaerobic sludge supernatant and human urine). An optimal volumetric ratio (VRs/f) of 1:9 of fresh and 10-d stale human urine could yield phosphorus recovery of 90.8% at [Mg2+]:[NH4+-N]:[PO43−-P] = 1.2:1.05:1, pH 10, and reacting time 15 min. The SEM and XRD analyses confirmed the precipitates were struvite. Struvite precipitation was determined by relative supersaturation in both nucleation and crystal growth phases, with homogenous nucleation predominated in the latter phase. One liter of mixed urine could recover the PO43−-P content in 41.9 L of anaerobic sludge supernatant to form 182.3 g of struvite.

AB - Phosphorus recovery attracts increasing attentions because phosphorus is a non-renewable and exhausted resource. This study for the first time remarkably improves the efficiency of phosphorus recovery in the form of struvite using the mixture of two kinds of phosphorus-rich wastewater (i.e., anaerobic sludge supernatant and human urine). An optimal volumetric ratio (VRs/f) of 1:9 of fresh and 10-d stale human urine could yield phosphorus recovery of 90.8% at [Mg2+]:[NH4+-N]:[PO43−-P] = 1.2:1.05:1, pH 10, and reacting time 15 min. The SEM and XRD analyses confirmed the precipitates were struvite. Struvite precipitation was determined by relative supersaturation in both nucleation and crystal growth phases, with homogenous nucleation predominated in the latter phase. One liter of mixed urine could recover the PO43−-P content in 41.9 L of anaerobic sludge supernatant to form 182.3 g of struvite.

KW - Anaerobic sludge supernatant

KW - Human urine

KW - Magnesium ammonium phosphate (MAP)

KW - Phosphorus recovery

KW - Struvite precipitation

UR - https://www.scopus.com/pages/publications/85044123886

U2 - 10.1016/j.cej.2018.03.088

DO - 10.1016/j.cej.2018.03.088

M3 - 文章

AN - SCOPUS:85044123886

SN - 1385-8947

VL - 344

SP - 254

EP - 261

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

Struvite precipitation from anaerobic sludge supernatant and mixed fresh/stale human urine

Abstract

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Cite this