High solid mono-digestion and co-digestion performance of food waste and sewage sludge by a thermophilic anaerobic membrane bioreactor

Yemei Li; Hui Cheng; Guangze Guo; Tao Zhang; Yu Qin; Yu You Li

doi:10.1016/j.biortech.2020.123433

High solid mono-digestion and co-digestion performance of food waste and sewage sludge by a thermophilic anaerobic membrane bioreactor

Yemei Li, Hui Cheng, Guangze Guo, Tao Zhang, Yu Qin, Yu You Li

ENG - Civil and Environmental Engineering

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

23 Citations (Scopus)

Abstract

The performance of co-digestion of food waste (FW) and sewage sludge (sludge) by a thermophilic anaerobic membrane bioreactor (ThAnMBR) was firstly investigated. The long-term stable operation showed the feasibility of the utilization of ThAnMBR for mono- and co-digestion of FW and sludge at a high solid condition. Good permeate quality was obtained at all sludge ratios while the addition of sludge restricted the methane generation. For a sludge substitution with a 25% TS-based substrate, the biogas yield of 0.812 L/g-VS_fed was at 91% and 158% that of the mono-digestion of FW and sludge, respectively. Membrane performance indicated that the ThAnMBR operated stably at a high flux of 5 LMH under the high solid (~27 g/L) condition. Furthermore, membrane filtration with a 0.1 μm pore size of hollow fiber not only completely removed suspended solids but also rejected about 70% of soluble COD, 80% of soluble carbohydrates and 17% of soluble proteins.

Original language	English
Article number	123433
Journal	Bioresource Technology
Volume	310
DOIs	https://doi.org/10.1016/j.biortech.2020.123433
Publication status	Published - 2020 Aug

Keywords

AnMBR
Biogas
Co-digestion
Food waste
Sewage sludge

ASJC Scopus subject areas

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2020.123433

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title = "High solid mono-digestion and co-digestion performance of food waste and sewage sludge by a thermophilic anaerobic membrane bioreactor",

abstract = "The performance of co-digestion of food waste (FW) and sewage sludge (sludge) by a thermophilic anaerobic membrane bioreactor (ThAnMBR) was firstly investigated. The long-term stable operation showed the feasibility of the utilization of ThAnMBR for mono- and co-digestion of FW and sludge at a high solid condition. Good permeate quality was obtained at all sludge ratios while the addition of sludge restricted the methane generation. For a sludge substitution with a 25% TS-based substrate, the biogas yield of 0.812 L/g-VSfed was at 91% and 158% that of the mono-digestion of FW and sludge, respectively. Membrane performance indicated that the ThAnMBR operated stably at a high flux of 5 LMH under the high solid (~27 g/L) condition. Furthermore, membrane filtration with a 0.1 μm pore size of hollow fiber not only completely removed suspended solids but also rejected about 70% of soluble COD, 80% of soluble carbohydrates and 17% of soluble proteins.",

keywords = "AnMBR, Biogas, Co-digestion, Food waste, Sewage sludge",

author = "Yemei Li and Hui Cheng and Guangze Guo and Tao Zhang and Yu Qin and Li, {Yu You}",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Numbers 19J11913 & 19K23528 . The first author greatly acknowledges the Inter-Graduate School Doctoral Degree Program on Science for Global Safety for partially providing financial support to her study. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

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doi = "10.1016/j.biortech.2020.123433",

language = "English",

volume = "310",

journal = "Agricultural Wastes",

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TY - JOUR

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AU - Li, Yemei

AU - Cheng, Hui

AU - Guo, Guangze

AU - Zhang, Tao

AU - Qin, Yu

AU - Li, Yu You

N1 - Funding Information: This work was supported by JSPS KAKENHI Grant Numbers 19J11913 & 19K23528 . The first author greatly acknowledges the Inter-Graduate School Doctoral Degree Program on Science for Global Safety for partially providing financial support to her study. Publisher Copyright: © 2020 Elsevier Ltd

PY - 2020/8

Y1 - 2020/8

N2 - The performance of co-digestion of food waste (FW) and sewage sludge (sludge) by a thermophilic anaerobic membrane bioreactor (ThAnMBR) was firstly investigated. The long-term stable operation showed the feasibility of the utilization of ThAnMBR for mono- and co-digestion of FW and sludge at a high solid condition. Good permeate quality was obtained at all sludge ratios while the addition of sludge restricted the methane generation. For a sludge substitution with a 25% TS-based substrate, the biogas yield of 0.812 L/g-VSfed was at 91% and 158% that of the mono-digestion of FW and sludge, respectively. Membrane performance indicated that the ThAnMBR operated stably at a high flux of 5 LMH under the high solid (~27 g/L) condition. Furthermore, membrane filtration with a 0.1 μm pore size of hollow fiber not only completely removed suspended solids but also rejected about 70% of soluble COD, 80% of soluble carbohydrates and 17% of soluble proteins.

AB - The performance of co-digestion of food waste (FW) and sewage sludge (sludge) by a thermophilic anaerobic membrane bioreactor (ThAnMBR) was firstly investigated. The long-term stable operation showed the feasibility of the utilization of ThAnMBR for mono- and co-digestion of FW and sludge at a high solid condition. Good permeate quality was obtained at all sludge ratios while the addition of sludge restricted the methane generation. For a sludge substitution with a 25% TS-based substrate, the biogas yield of 0.812 L/g-VSfed was at 91% and 158% that of the mono-digestion of FW and sludge, respectively. Membrane performance indicated that the ThAnMBR operated stably at a high flux of 5 LMH under the high solid (~27 g/L) condition. Furthermore, membrane filtration with a 0.1 μm pore size of hollow fiber not only completely removed suspended solids but also rejected about 70% of soluble COD, 80% of soluble carbohydrates and 17% of soluble proteins.

KW - AnMBR

KW - Biogas

KW - Co-digestion

KW - Food waste

KW - Sewage sludge

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High solid mono-digestion and co-digestion performance of food waste and sewage sludge by a thermophilic anaerobic membrane bioreactor

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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