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Shubiao Wu

Evaluation of slow pyrolyzed wood and rice husks biochar for adsorption of ammonium nitrogen from piggery manure anaerobic digestate slurry

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Evaluation of slow pyrolyzed wood and rice husks biochar for adsorption of ammonium nitrogen from piggery manure anaerobic digestate slurry. / Kizito, Simon; Wu, Shubiao; Kipkemoi Kirui, W.; Lei, Ming; Lu, Qimin; Bah, Hamidou; Dong, Renjie.

I: Science of the Total Environment, Bind 505, 01.02.2015, s. 102-112.

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

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Kizito, Simon ; Wu, Shubiao ; Kipkemoi Kirui, W. ; Lei, Ming ; Lu, Qimin ; Bah, Hamidou ; Dong, Renjie. / Evaluation of slow pyrolyzed wood and rice husks biochar for adsorption of ammonium nitrogen from piggery manure anaerobic digestate slurry. I: Science of the Total Environment. 2015 ; Bind 505. s. 102-112.

Bibtex

@article{c3479659b6c047f8bc012d0886bf2d68,
title = "Evaluation of slow pyrolyzed wood and rice husks biochar for adsorption of ammonium nitrogen from piggery manure anaerobic digestate slurry",
abstract = "Due to its high adsorption capacity, the use of biochar to capture excess nutrients from wastewater has become a central focus in environmental remediation studies. In this study, its potential use in adsorption and removal of ammonium in piggery manure anaerobic digestate slurry was investigated. The adsorbed amount of NH4 +-N (mg·g-1) and removal percentage as a function of adsorbent mass in solution, adsorbent particle size, NH4 +-N concentration in the effluent, contact time, pH and temperature were quantified in batch equilibrium and kinetics experiments. The maximum NH4 +-N adsorption from slurry at 1400mgN·L-1 was 44.64±0.602mg·g-1 and 39.8±0.54mg·g-1 for wood and rice husk biochar, respectively. For both biochars, adsorption increased with increase in contact time, temperature, pH and NH4 +-N concentration but it decreased with increase in biochar particle size. Furthermore, the sorption process was endothermic and followed Langmuir (R2=0.995 and 0.998) and Pseudo-second order kinetic models (R2=0.998 and 0.999). Based on the removal amounts, we concluded that rice husk and wood biochar have potential to adsorb NH4 +-N from piggery manure anaerobic digestate slurry, and thus can be used as nutrient filters prior to discharge into water streams.",
keywords = "Ammonium adsorption, Biochar, Kinetics, Piggery manure anaerobic digestate, Thermodynamics",
author = "Simon Kizito and Shubiao Wu and {Kipkemoi Kirui}, W. and Ming Lei and Qimin Lu and Hamidou Bah and Renjie Dong",
year = "2015",
month = feb,
day = "1",
doi = "10.1016/j.scitotenv.2014.09.096",
language = "English",
volume = "505",
pages = "102--112",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Evaluation of slow pyrolyzed wood and rice husks biochar for adsorption of ammonium nitrogen from piggery manure anaerobic digestate slurry

AU - Kizito, Simon

AU - Wu, Shubiao

AU - Kipkemoi Kirui, W.

AU - Lei, Ming

AU - Lu, Qimin

AU - Bah, Hamidou

AU - Dong, Renjie

PY - 2015/2/1

Y1 - 2015/2/1

N2 - Due to its high adsorption capacity, the use of biochar to capture excess nutrients from wastewater has become a central focus in environmental remediation studies. In this study, its potential use in adsorption and removal of ammonium in piggery manure anaerobic digestate slurry was investigated. The adsorbed amount of NH4 +-N (mg·g-1) and removal percentage as a function of adsorbent mass in solution, adsorbent particle size, NH4 +-N concentration in the effluent, contact time, pH and temperature were quantified in batch equilibrium and kinetics experiments. The maximum NH4 +-N adsorption from slurry at 1400mgN·L-1 was 44.64±0.602mg·g-1 and 39.8±0.54mg·g-1 for wood and rice husk biochar, respectively. For both biochars, adsorption increased with increase in contact time, temperature, pH and NH4 +-N concentration but it decreased with increase in biochar particle size. Furthermore, the sorption process was endothermic and followed Langmuir (R2=0.995 and 0.998) and Pseudo-second order kinetic models (R2=0.998 and 0.999). Based on the removal amounts, we concluded that rice husk and wood biochar have potential to adsorb NH4 +-N from piggery manure anaerobic digestate slurry, and thus can be used as nutrient filters prior to discharge into water streams.

AB - Due to its high adsorption capacity, the use of biochar to capture excess nutrients from wastewater has become a central focus in environmental remediation studies. In this study, its potential use in adsorption and removal of ammonium in piggery manure anaerobic digestate slurry was investigated. The adsorbed amount of NH4 +-N (mg·g-1) and removal percentage as a function of adsorbent mass in solution, adsorbent particle size, NH4 +-N concentration in the effluent, contact time, pH and temperature were quantified in batch equilibrium and kinetics experiments. The maximum NH4 +-N adsorption from slurry at 1400mgN·L-1 was 44.64±0.602mg·g-1 and 39.8±0.54mg·g-1 for wood and rice husk biochar, respectively. For both biochars, adsorption increased with increase in contact time, temperature, pH and NH4 +-N concentration but it decreased with increase in biochar particle size. Furthermore, the sorption process was endothermic and followed Langmuir (R2=0.995 and 0.998) and Pseudo-second order kinetic models (R2=0.998 and 0.999). Based on the removal amounts, we concluded that rice husk and wood biochar have potential to adsorb NH4 +-N from piggery manure anaerobic digestate slurry, and thus can be used as nutrient filters prior to discharge into water streams.

KW - Ammonium adsorption

KW - Biochar

KW - Kinetics

KW - Piggery manure anaerobic digestate

KW - Thermodynamics

UR - http://www.scopus.com/inward/record.url?scp=84908582576&partnerID=8YFLogxK

U2 - 10.1016/j.scitotenv.2014.09.096

DO - 10.1016/j.scitotenv.2014.09.096

M3 - Journal article

C2 - 25310885

AN - SCOPUS:84908582576

VL - 505

SP - 102

EP - 112

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -