Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.wasman.2018.08.033
Title: Effects of disposable plastics and wooden chopsticks on the anaerobic digestion of food waste
Authors: Lim, Jun Wei 
Ting, Daphne Wan Qing
Loh, Kai-Chee
Ge, Tianshu
Tong, Yen Wah 
Keywords: Science & Technology
Technology
Life Sciences & Biomedicine
Engineering, Environmental
Environmental Sciences
Engineering
Environmental Sciences & Ecology
Anaerobic digestion
Food waste
Contamination by disposable plastics
Batch study
MICROBIAL COMMUNITY
WATER
DIVERSITY
Issue Date: 1-Sep-2018
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Citation: Lim, Jun Wei, Ting, Daphne Wan Qing, Loh, Kai-Chee, Ge, Tianshu, Tong, Yen Wah (2018-09-01). Effects of disposable plastics and wooden chopsticks on the anaerobic digestion of food waste. WASTE MANAGEMENT 79 : 607-614. ScholarBank@NUS Repository. https://doi.org/10.1016/j.wasman.2018.08.033
Abstract: © 2018 Elsevier Ltd A common challenge for the anaerobic digestion (AD) of food waste (FW) is the contamination by disposable plastic materials and utensils. The objective of this batch study was to investigate the effects of disposable plastic materials – polystyrene (PS), polypropylene (PP), high density polyethylene (HDPE) and wooden chopsticks (WC) on the AD of FW. Results showed that methane production from the AD of FW was inhibited to different extents when different materials were present in FW. PS and PP were found to reduce methane production from food waste more than HDPE and WC. The reduction in methane production was hypothesized to be due to the production of toxic plastic by-products or due to reduced contact between microbes and FW. Pyrosequencing and Field Emission Scanning Electron Microscope (FESEM) results indicated that the reduction in methane production was more likely due to the interference of good contact necessary between microbes and FW for biodegradation, and that the biological processes of AD were not affected by the contamination of plastics. Greater reductions in methane yields were also observed when the surface areas of the disposable materials were increased. Studying the effects of disposable materials on the AD of FW would provide plant operators with more information that could optimise the process of resource recovery from food waste.
Source Title: WASTE MANAGEMENT
URI: https://scholarbank.nus.edu.sg/handle/10635/155042
ISSN: 0956-053X
1879-2456
DOI: 10.1016/j.wasman.2018.08.033
Appears in Collections:Staff Publications
Elements

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Effects of disposable plastics and wooden chopsticks on the anaerobic digestion of food waste. Waste Manage, 79, 607-614.pdfPublished version1.83 MBAdobe PDF

CLOSED

None

Page view(s)

48
checked on Sep 19, 2019

Download(s)

2
checked on Sep 19, 2019

Google ScholarTM

Check

Altmetric


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