BROWSE

Related Researcher

Author's Photo

Kim, Jaai
School of Urban and Environmental Engineering
Research Interests

ITEM VIEW & DOWNLOAD

Mild-temperature thermochemical pretreatment of green macroalgal biomass: Effects on solubilization, methanation, and microbial community structure

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Mild-temperature thermochemical pretreatment of green macroalgal biomass: Effects on solubilization, methanation, and microbial community structure
Author
Jung, HeejungBaek, GahyunKim, JaaiShin, Seung GuLee, Changsoo
Issue Date
2016-01
Publisher
ELSEVIER SCI LTD
Citation
BIORESOURCE TECHNOLOGY, v.199, pp.326 - 335
Abstract
The effects of mild-temperature thermochemical pretreatments with HCl or NaOH on the solubilization and biomethanation of Ulva biomass were assessed. Within the explored region (0-0.2. M HCl/NaOH, 60-90. °C), both methods were effective for solubilization (about 2-fold increase in the proportion of soluble organics), particularly under high-temperature and high-chemical-dose conditions. However, increased solubilization was not translated into enhanced biogas production for both methods. Response surface analysis statistically revealed that HCl or NaOH addition enhances the solubilization degree while adversely affects the methanation. The thermal-only treatment at the upper-limit temperature (90. °C) was estimated to maximize the biogas production for both methods, suggesting limited potential of HCl/NaOH treatment for enhanced Ulva biomethanation. Compared to HCl, NaOH had much stronger positive and negative effects on the solubilization and methanation, respectively. Methanosaeta was likely the dominant methanogen group in all trials. Bacterial community structure varied among the trials according primarily to HCl/NaOH addition.
URI
https://scholarworks.unist.ac.kr/handle/201301/16796
URL
http://www.sciencedirect.com/science/article/pii/S0960852415011189
DOI
10.1016/j.biortech.2015.08.014
ISSN
0960-8524
Appears in Collections:
UEE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU