Low-energy hydraulic fracturing wastewater treatment via AC powered electrocoagulation with biochar

Fernanda Leite Lobo; Heming Wang; Tyler Huggins; James Rosenblum; Karl G. Linden; Zhiyong Jason Ren

doi:10.1016/j.jhazmat.2016.02.020

Low-energy hydraulic fracturing wastewater treatment via AC powered electrocoagulation with biochar

Fernanda Leite Lobo, Heming Wang, Tyler Huggins, James Rosenblum, Karl G. Linden, Zhiyong Jason Ren

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

50 Scopus citations

Abstract

Produced and flowback waters are the largest byproducts associated with unconventional oil and gas exploration and production. Sustainable and low cost technologies are needed to treat and reuse this wastewater to avoid the environmental problems associated with current management practices (i.e., deep well injection). This study presents a new process to integrate AC-powered electrocoagulation (EC) with granular biochar to dramatically reduce energy use and electrode passivation while achieving high treatment efficiency. Results show achieving a 99% turbidity and TSS removal for the AC-EC-biochar system only used 0.079 kWh/m³ or 0.15 kWh/kg TSS, which is 70% lower than traditional DC-EC systems and orders of magnitude lower than previous studies. The amount of biochar added positively correlates with energy saving, and further studies are needed to improve organic carbon and salt removal through system integration.

Original language	English (US)
Pages (from-to)	180-184
Number of pages	5
Journal	Journal of Hazardous Materials
Volume	309
DOIs	https://doi.org/10.1016/j.jhazmat.2016.02.020
State	Published - May 15 2016
Externally published	Yes

All Science Journal Classification (ASJC) codes

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

Keywords

Biochar
Electrocoagulation
Hydraulic fracturing
Low energy wastewater treatment
Produced water

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10.1016/j.jhazmat.2016.02.020

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title = "Low-energy hydraulic fracturing wastewater treatment via AC powered electrocoagulation with biochar",

abstract = "Produced and flowback waters are the largest byproducts associated with unconventional oil and gas exploration and production. Sustainable and low cost technologies are needed to treat and reuse this wastewater to avoid the environmental problems associated with current management practices (i.e., deep well injection). This study presents a new process to integrate AC-powered electrocoagulation (EC) with granular biochar to dramatically reduce energy use and electrode passivation while achieving high treatment efficiency. Results show achieving a 99% turbidity and TSS removal for the AC-EC-biochar system only used 0.079 kWh/m3 or 0.15 kWh/kg TSS, which is 70% lower than traditional DC-EC systems and orders of magnitude lower than previous studies. The amount of biochar added positively correlates with energy saving, and further studies are needed to improve organic carbon and salt removal through system integration.",

keywords = "Biochar, Electrocoagulation, Hydraulic fracturing, Low energy wastewater treatment, Produced water",

author = "Lobo, {Fernanda Leite} and Heming Wang and Tyler Huggins and James Rosenblum and Linden, {Karl G.} and Ren, {Zhiyong Jason}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

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doi = "10.1016/j.jhazmat.2016.02.020",

language = "English (US)",

volume = "309",

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T1 - Low-energy hydraulic fracturing wastewater treatment via AC powered electrocoagulation with biochar

AU - Lobo, Fernanda Leite

AU - Wang, Heming

AU - Huggins, Tyler

AU - Rosenblum, James

AU - Linden, Karl G.

AU - Ren, Zhiyong Jason

PY - 2016/5/15

Y1 - 2016/5/15

N2 - Produced and flowback waters are the largest byproducts associated with unconventional oil and gas exploration and production. Sustainable and low cost technologies are needed to treat and reuse this wastewater to avoid the environmental problems associated with current management practices (i.e., deep well injection). This study presents a new process to integrate AC-powered electrocoagulation (EC) with granular biochar to dramatically reduce energy use and electrode passivation while achieving high treatment efficiency. Results show achieving a 99% turbidity and TSS removal for the AC-EC-biochar system only used 0.079 kWh/m3 or 0.15 kWh/kg TSS, which is 70% lower than traditional DC-EC systems and orders of magnitude lower than previous studies. The amount of biochar added positively correlates with energy saving, and further studies are needed to improve organic carbon and salt removal through system integration.

AB - Produced and flowback waters are the largest byproducts associated with unconventional oil and gas exploration and production. Sustainable and low cost technologies are needed to treat and reuse this wastewater to avoid the environmental problems associated with current management practices (i.e., deep well injection). This study presents a new process to integrate AC-powered electrocoagulation (EC) with granular biochar to dramatically reduce energy use and electrode passivation while achieving high treatment efficiency. Results show achieving a 99% turbidity and TSS removal for the AC-EC-biochar system only used 0.079 kWh/m3 or 0.15 kWh/kg TSS, which is 70% lower than traditional DC-EC systems and orders of magnitude lower than previous studies. The amount of biochar added positively correlates with energy saving, and further studies are needed to improve organic carbon and salt removal through system integration.

KW - Biochar

KW - Electrocoagulation

KW - Hydraulic fracturing

KW - Low energy wastewater treatment

KW - Produced water

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EP - 184

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

ER -

Low-energy hydraulic fracturing wastewater treatment via AC powered electrocoagulation with biochar

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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