TY - JOUR
T1 - Biogas production by two-stage thermophilic anaerobic co-digestion of food waste and paper waste
T2 - Effect of paper waste ratio
AU - Xiao, Benyi
AU - Zhang, Wenzhe
AU - Yi, Hao
AU - Qin, Yu
AU - Wu, Jing
AU - Liu, Junxin
AU - Li, Yu You
N1 - Funding Information:
We gratefully acknowledge the financial support from the Japan Science and Technology (JST) (Japanese–Chinese Research Cooperative Program on Research and Development to Find Solutions to Environmental and Energy Issues in Urban Areas, 16769220A ) and the Major Science and Technology Program for Water Pollution Control and Treatment of China (No. 2017ZX07106003 ).
Funding Information:
We gratefully acknowledge the financial support from the Japan Science and Technology (JST) (Japanese–Chinese Research Cooperative Program on Research and Development to Find Solutions to Environmental and Energy Issues in Urban Areas, 16769220A) and the Major Science and Technology Program for Water Pollution Control and Treatment of China (No. 2017ZX07106003).
Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2019/3
Y1 - 2019/3
N2 - The effects of paper waste (PW) ratio on biogas production by two-stage thermophilic anaerobic co-digestion (coAD) of food waste (FW) and PW, two main components of organic fraction of municipal solid waste, were evaluated in lab-scale continuously stirred tank systems with semi-continuous feeding. Four PW ratios (0, 20, 40, and 50%) were studied in the test. The experimental results showed the two-stage thermophilic coAD could operate stably after an adjustment period at all PW ratios. Although the increase of PW ratio decreased methane content, production and yield, reaction rates of four AD steps, it could increase the methane production of substrate when the FW was fixed. The pH, total volatile fatty acids, total alkalinity, and total ammonium of the sludge in the second stage of AD, also decreased with the increase of PW ratio in the test. The change of the substrate's organic composition, increase of carbohydrate and decrease of protein and lipid, were the main reason for the decrease of methane content, production and yield and changes of the second stage sludge characteristics. An apposite PW ratio (PW-20%) could enhance the degradation of matters (TS, VS and TCOD).
AB - The effects of paper waste (PW) ratio on biogas production by two-stage thermophilic anaerobic co-digestion (coAD) of food waste (FW) and PW, two main components of organic fraction of municipal solid waste, were evaluated in lab-scale continuously stirred tank systems with semi-continuous feeding. Four PW ratios (0, 20, 40, and 50%) were studied in the test. The experimental results showed the two-stage thermophilic coAD could operate stably after an adjustment period at all PW ratios. Although the increase of PW ratio decreased methane content, production and yield, reaction rates of four AD steps, it could increase the methane production of substrate when the FW was fixed. The pH, total volatile fatty acids, total alkalinity, and total ammonium of the sludge in the second stage of AD, also decreased with the increase of PW ratio in the test. The change of the substrate's organic composition, increase of carbohydrate and decrease of protein and lipid, were the main reason for the decrease of methane content, production and yield and changes of the second stage sludge characteristics. An apposite PW ratio (PW-20%) could enhance the degradation of matters (TS, VS and TCOD).
KW - Biogas production
KW - Effect
KW - Food waste
KW - Paper waste
KW - Paper waste ratio
KW - Two-stage thermophilic anaerobic co-digestion
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U2 - 10.1016/j.renene.2018.09.030
DO - 10.1016/j.renene.2018.09.030
M3 - Article
AN - SCOPUS:85054646474
VL - 132
SP - 1301
EP - 1309
JO - Renewable Energy
JF - Renewable Energy
SN - 0960-1481
ER -
