Biochar seeding promotes struvite formation, but accelerates heavy metal accumulation

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Biochar seeding promotes struvite formation, but accelerates heavy metal accumulation. / Muhmood, Atif; Lu, Jiaxin; Kadam, Rahul; Dong, Renjie; Guo, Jianbin; Wu, Shubiao.

I: Science of the Total Environment, Bind 652, 20.02.2019, s. 623-632.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Muhmood, A, Lu, J, Kadam, R, Dong, R, Guo, J & Wu, S 2019, 'Biochar seeding promotes struvite formation, but accelerates heavy metal accumulation', Science of the Total Environment, bind 652, s. 623-632. https://doi.org/10.1016/j.scitotenv.2018.10.302

APA

Muhmood, A., Lu, J., Kadam, R., Dong, R., Guo, J., & Wu, S. (2019). Biochar seeding promotes struvite formation, but accelerates heavy metal accumulation. Science of the Total Environment, 652, 623-632. https://doi.org/10.1016/j.scitotenv.2018.10.302

CBE

Muhmood A, Lu J, Kadam R, Dong R, Guo J, Wu S. 2019. Biochar seeding promotes struvite formation, but accelerates heavy metal accumulation. Science of the Total Environment. 652:623-632. https://doi.org/10.1016/j.scitotenv.2018.10.302

MLA

Vancouver

Muhmood A, Lu J, Kadam R, Dong R, Guo J, Wu S. Biochar seeding promotes struvite formation, but accelerates heavy metal accumulation. Science of the Total Environment. 2019 feb 20;652:623-632. https://doi.org/10.1016/j.scitotenv.2018.10.302

Author

Muhmood, Atif ; Lu, Jiaxin ; Kadam, Rahul ; Dong, Renjie ; Guo, Jianbin ; Wu, Shubiao. / Biochar seeding promotes struvite formation, but accelerates heavy metal accumulation. I: Science of the Total Environment. 2019 ; Bind 652. s. 623-632.

Bibtex

@article{9860a8cf0f54493683612b9f2a90405a,
title = "Biochar seeding promotes struvite formation, but accelerates heavy metal accumulation",
abstract = "This study investigated the effects of biochar seeding (wheat straw biochar and rice husk biochar) on nutrient recovery via struvite formation, and improvements in the particle size of precipitated struvite from anaerobic digestate supernatant. Simultaneously, the influence of biochar seeding on heavy metal accumulation and elimination of pathogens (total coliforms and Escherichia coli) was evaluated under various operational factors, e.g., pH, supersaturation, reaction time, and seeding rates. Compared to the non-seeding process (maximum recovery efficiency of phosphate and ammonium 91% and 83%, respectively, with a particle size of 70 mu m) and the struvite-seeding process (maximum recovery efficiency of phosphate and ammonium 97% and 94%, respectively, with a particle size of 100 mu m), the process of biochar seeding improved nutrient recovery up to 7% and 11% for phosphate and ammonium, respectively, and increased struvite particle size by 43%, regardless of biochar type. XRD diffraction and FTIR analysis confirmed the prevalence of orthorhombic characteristics and an inner crystalline structure of the struvite formed by biochar seeding. About 75% of total coliforms and 70% of Escherichia coli were removed from the digestate supernatant through seeded struvite precipitation, regardless of the seeding materials. However, the biochar seeding process led to an accumulation of heavy metals in the acquired struvite product than that with non-seeded precipitation process. The concentrations of these metals were still well below permissible limits for application on agricultural land. It can be concluded that the inclusion of biochar as a seeding material might be a sustainable strategy to enhance struvite formation, intensify nutrient recovery, and yield high-quality struvite fertilizer with increased particle sizes. (C) 2018 Elsevier B.V. All rights reserved.",
keywords = "Struvite, Biochar seeding, Particle size, Recovery efficiency, Heavy metals, WASTE-WATER, PHOSPHORUS RECOVERY, AMMONIUM-NITROGEN, TREATMENT SYSTEMS, SWINE MANURE, CRYSTALLIZATION, CRYSTAL, GROWTH, FERTILIZER, PHOSPHATE",
author = "Atif Muhmood and Jiaxin Lu and Rahul Kadam and Renjie Dong and Jianbin Guo and Shubiao Wu",
year = "2019",
month = feb,
day = "20",
doi = "10.1016/j.scitotenv.2018.10.302",
language = "English",
volume = "652",
pages = "623--632",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Biochar seeding promotes struvite formation, but accelerates heavy metal accumulation

AU - Muhmood, Atif

AU - Lu, Jiaxin

AU - Kadam, Rahul

AU - Dong, Renjie

AU - Guo, Jianbin

AU - Wu, Shubiao

PY - 2019/2/20

Y1 - 2019/2/20

N2 - This study investigated the effects of biochar seeding (wheat straw biochar and rice husk biochar) on nutrient recovery via struvite formation, and improvements in the particle size of precipitated struvite from anaerobic digestate supernatant. Simultaneously, the influence of biochar seeding on heavy metal accumulation and elimination of pathogens (total coliforms and Escherichia coli) was evaluated under various operational factors, e.g., pH, supersaturation, reaction time, and seeding rates. Compared to the non-seeding process (maximum recovery efficiency of phosphate and ammonium 91% and 83%, respectively, with a particle size of 70 mu m) and the struvite-seeding process (maximum recovery efficiency of phosphate and ammonium 97% and 94%, respectively, with a particle size of 100 mu m), the process of biochar seeding improved nutrient recovery up to 7% and 11% for phosphate and ammonium, respectively, and increased struvite particle size by 43%, regardless of biochar type. XRD diffraction and FTIR analysis confirmed the prevalence of orthorhombic characteristics and an inner crystalline structure of the struvite formed by biochar seeding. About 75% of total coliforms and 70% of Escherichia coli were removed from the digestate supernatant through seeded struvite precipitation, regardless of the seeding materials. However, the biochar seeding process led to an accumulation of heavy metals in the acquired struvite product than that with non-seeded precipitation process. The concentrations of these metals were still well below permissible limits for application on agricultural land. It can be concluded that the inclusion of biochar as a seeding material might be a sustainable strategy to enhance struvite formation, intensify nutrient recovery, and yield high-quality struvite fertilizer with increased particle sizes. (C) 2018 Elsevier B.V. All rights reserved.

AB - This study investigated the effects of biochar seeding (wheat straw biochar and rice husk biochar) on nutrient recovery via struvite formation, and improvements in the particle size of precipitated struvite from anaerobic digestate supernatant. Simultaneously, the influence of biochar seeding on heavy metal accumulation and elimination of pathogens (total coliforms and Escherichia coli) was evaluated under various operational factors, e.g., pH, supersaturation, reaction time, and seeding rates. Compared to the non-seeding process (maximum recovery efficiency of phosphate and ammonium 91% and 83%, respectively, with a particle size of 70 mu m) and the struvite-seeding process (maximum recovery efficiency of phosphate and ammonium 97% and 94%, respectively, with a particle size of 100 mu m), the process of biochar seeding improved nutrient recovery up to 7% and 11% for phosphate and ammonium, respectively, and increased struvite particle size by 43%, regardless of biochar type. XRD diffraction and FTIR analysis confirmed the prevalence of orthorhombic characteristics and an inner crystalline structure of the struvite formed by biochar seeding. About 75% of total coliforms and 70% of Escherichia coli were removed from the digestate supernatant through seeded struvite precipitation, regardless of the seeding materials. However, the biochar seeding process led to an accumulation of heavy metals in the acquired struvite product than that with non-seeded precipitation process. The concentrations of these metals were still well below permissible limits for application on agricultural land. It can be concluded that the inclusion of biochar as a seeding material might be a sustainable strategy to enhance struvite formation, intensify nutrient recovery, and yield high-quality struvite fertilizer with increased particle sizes. (C) 2018 Elsevier B.V. All rights reserved.

KW - Struvite

KW - Biochar seeding

KW - Particle size

KW - Recovery efficiency

KW - Heavy metals

KW - WASTE-WATER

KW - PHOSPHORUS RECOVERY

KW - AMMONIUM-NITROGEN

KW - TREATMENT SYSTEMS

KW - SWINE MANURE

KW - CRYSTALLIZATION

KW - CRYSTAL

KW - GROWTH

KW - FERTILIZER

KW - PHOSPHATE

U2 - 10.1016/j.scitotenv.2018.10.302

DO - 10.1016/j.scitotenv.2018.10.302

M3 - Journal article

C2 - 30368191

VL - 652

SP - 623

EP - 632

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -