TY - JOUR
T1 - Co-digestion of food waste and sewage sludge for methane production
T2 - Current status and perspective
AU - Mehariya, Sanjeet
AU - Patel, Anil Kumar
AU - OBULISAMY, Parthiba Karthikeyan
AU - Punniyakotti, Elumalai
AU - WONG, Jonathan W C
N1 - Funding Information:
The authors would like to thank to the Research Grant Council, Hong Kong Special Administrative Region for the funding support provided under Collaborative Research Fund (CRF; Grant No: C6033-14G ).
PY - 2018/10
Y1 - 2018/10
N2 - Food waste (FW) is a valuable resource which requires sustainable management avenues to reduce the hazardous environmental impacts and add-value for better economy. Anaerobic digestion (AD) is still reliable, cost-effective technology for waste management. Conventional AD was originally designed for sewer sludge digestion, is not effective for FW due to mainly high organics and volatile fatty acid (VFA) accumulation, hence better technical aptitudes and biochemical inputs are required for optimal biogas production. Besides, to overcome these challenges, FW co-digestion with complementary organic waste e.g. sewage sludge (SS) mixed which complement each other for better process design. The main aim of this article is to summarize the recent updates and review different holistic approaches for efficient anaerobic co-digestion (AcoD) of FW and SS to provide a comprehensive review on the topic. Moreover, to demonstrate the status and perspectives of AcoD at present scenario for Hong Kong and rest of the world.
AB - Food waste (FW) is a valuable resource which requires sustainable management avenues to reduce the hazardous environmental impacts and add-value for better economy. Anaerobic digestion (AD) is still reliable, cost-effective technology for waste management. Conventional AD was originally designed for sewer sludge digestion, is not effective for FW due to mainly high organics and volatile fatty acid (VFA) accumulation, hence better technical aptitudes and biochemical inputs are required for optimal biogas production. Besides, to overcome these challenges, FW co-digestion with complementary organic waste e.g. sewage sludge (SS) mixed which complement each other for better process design. The main aim of this article is to summarize the recent updates and review different holistic approaches for efficient anaerobic co-digestion (AcoD) of FW and SS to provide a comprehensive review on the topic. Moreover, to demonstrate the status and perspectives of AcoD at present scenario for Hong Kong and rest of the world.
KW - Anaerobic co-digestion
KW - Bio-augmentation
KW - Electron transfer
KW - Food waste
KW - Organic loading rate
KW - Pre-treatment
KW - Sewage sludge
UR - http://www.scopus.com/inward/record.url?scp=85047727953&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2018.04.030
DO - 10.1016/j.biortech.2018.04.030
M3 - Review article
C2 - 29861300
AN - SCOPUS:85047727953
SN - 0960-8524
VL - 265
SP - 519
EP - 531
JO - Bioresource Technology
JF - Bioresource Technology
ER -
