Combined pretreatment of electrolysis and ultra-sonication towards enhancing solubilization and methane production from mixed microalgae biomass

Gopalakrishnan Kumar; Periyasamy Sivagurunathan; Guangyin Zhen; Takuro Kobayashi; Sang Hyoun Kim; Kaiqin Xu

doi:10.1016/j.biortech.2017.08.154

Combined pretreatment of electrolysis and ultra-sonication towards enhancing solubilization and methane production from mixed microalgae biomass

Gopalakrishnan Kumar, Periyasamy Sivagurunathan, Guangyin Zhen, Takuro Kobayashi, Sang Hyoun Kim, Kaiqin Xu

Department of Civil and Environmental Engineering

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

18 Citations (Scopus)

Abstract

This study investigated the effect of combination of pretreatment methods such as ultra-sonication and electrolysis for the minimum energy input to recover the maximal carbohydrate and solubilization (in terms of sCOD) from mixed microalgae biomass. The composition of the soluble chemical oxygen demand (COD), protein, carbohydrate revealed that the hydrolysis method had showed positive impact on the increasing quantity and thus enhanced methane yields. As a result, the combination of these 2 pretreatments showed the greatest yield of soluble protein and carbohydrate as 279 and 309 mg/L, which is the recovery of nearly 85 and 90% in terms of total content of them. BMP tests showed peak methane production yield of 257 mL/g VS_added, for the hydrolysate of combined pretreatment as compared to the control experiment of 138 mL/g VS added.

Original language	English
Pages (from-to)	196-200
Number of pages	5
Journal	Bioresource technology
Volume	245
DOIs	https://doi.org/10.1016/j.biortech.2017.08.154
Publication status	Published - 2017

Bibliographical note

Funding Information:
The authors wish to thank the Japan Society for Promotion of Science (JSPS, ID No. P14209 ; JSPS, ID No. PU 14016 ; JSPS, ID No. P15370 ). This work was supported by the Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (Grant No: 2016H1D3A1908953 ).

All Science Journal Classification (ASJC) codes

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

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title = "Combined pretreatment of electrolysis and ultra-sonication towards enhancing solubilization and methane production from mixed microalgae biomass",

abstract = "This study investigated the effect of combination of pretreatment methods such as ultra-sonication and electrolysis for the minimum energy input to recover the maximal carbohydrate and solubilization (in terms of sCOD) from mixed microalgae biomass. The composition of the soluble chemical oxygen demand (COD), protein, carbohydrate revealed that the hydrolysis method had showed positive impact on the increasing quantity and thus enhanced methane yields. As a result, the combination of these 2 pretreatments showed the greatest yield of soluble protein and carbohydrate as 279 and 309 mg/L, which is the recovery of nearly 85 and 90% in terms of total content of them. BMP tests showed peak methane production yield of 257 mL/g VSadded, for the hydrolysate of combined pretreatment as compared to the control experiment of 138 mL/g VS added.",

author = "Gopalakrishnan Kumar and Periyasamy Sivagurunathan and Guangyin Zhen and Takuro Kobayashi and Kim, {Sang Hyoun} and Kaiqin Xu",

note = "Funding Information: The authors wish to thank the Japan Society for Promotion of Science (JSPS, ID No. P14209 ; JSPS, ID No. PU 14016 ; JSPS, ID No. P15370 ). This work was supported by the Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (Grant No: 2016H1D3A1908953 ).",

year = "2017",

doi = "10.1016/j.biortech.2017.08.154",

language = "English",

volume = "245",

pages = "196--200",

journal = "Bioresource Technology",

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Combined pretreatment of electrolysis and ultra-sonication towards enhancing solubilization and methane production from mixed microalgae biomass. / Kumar, Gopalakrishnan; Sivagurunathan, Periyasamy; Zhen, Guangyin; Kobayashi, Takuro; Kim, Sang Hyoun; Xu, Kaiqin.

In: Bioresource technology, Vol. 245, 2017, p. 196-200.

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

TY - JOUR

T1 - Combined pretreatment of electrolysis and ultra-sonication towards enhancing solubilization and methane production from mixed microalgae biomass

AU - Kumar, Gopalakrishnan

AU - Sivagurunathan, Periyasamy

AU - Zhen, Guangyin

AU - Kobayashi, Takuro

AU - Kim, Sang Hyoun

AU - Xu, Kaiqin

N1 - Funding Information: The authors wish to thank the Japan Society for Promotion of Science (JSPS, ID No. P14209 ; JSPS, ID No. PU 14016 ; JSPS, ID No. P15370 ). This work was supported by the Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (Grant No: 2016H1D3A1908953 ).

PY - 2017

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