DOI: 10.1016/j.watres.2017.11.048
Scopus记录号: 2-s2.0-85036508187
论文题名: Primary sewage sludge filtration using biomass filter aids and subsequent hydrothermal co-liquefaction
作者: Biller P. ; Johannsen I. ; dos Passos J.S. ; Ottosen L.D.M.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 130 起始页码: 58
结束页码: 68
语种: 英语
英文关键词: Biomass
; Filter aid
; Filtration
; Hydrothermal liquefaction
; Primary sludge
; Wastewater
Scopus关键词: Bandpass filters
; Biomass
; Energy efficiency
; Liquefaction
; Organic carbon
; Sewage sludge
; Wastewater
; Wastewater treatment
; Biofuel production
; Filter aids
; Hydrothermal liquefactions
; Lignocellulosic biomass
; Mechanical pre-treatment
; Primary sludge
; Wastewater sludge
; Wastewater treatment plants
; Filtration
; lignocellulose
; nitrogen
; organic carbon
; biofuel
; biofiltration
; biofuel
; biomass
; catalyst
; cellulose
; energy efficiency
; filter
; filtration
; hydrothermal system
; liquefaction
; organic carbon
; sludge
; wastewater
; wastewater treatment
; wastewater treatment plant
; Article
; biomass
; energy recovery
; filtration
; hydrothermal liquefaction
; liquefaction
; mineral balance
; priority journal
; sample
; sludge
; waste water management
; biomass
; chemistry
; procedures
; sewage
; waste water
; water management
; Biofuels
; Biomass
; Filtration
; Sewage
; Waste Water
; Water Purification
英文摘要: Hydrothermal liquefaction (HTL) is a promising technology for biofuel production and treatment of wastewater sludge. The current study investigates a novel utilization of biomass-assisted filtration of primary sludge to obtain high dry matter (DM) content sludge. Drastic improvements in filtration speed are achieved using different types of lignocellulosic biomass filter aids prepared via mechanical pre-treatment. The combined sludge-biomass filter cake is subsequently used as a feedstock for HTL and shows superior bio-crude yields and properties compared to their individual counterparts. The chemical energy recovery to bio-crude is increased to 75% compared to 46% for biomass and 67% for sludge on its own. The increased DM content of filter cakes (∼25%) compared to primary sludge (5%) increases the energy efficiency of HTL of primary sludge by a factor of 4.5. Introducing a biomass filteraid-HTL combination to a wastewater treatment plant would reduce the organic carbon load to treat by 62%. By combining sludge with lignocellulosic biomass the use of alkali catalyst can be avoided entirely which represents a major cost factor in HTL of lignocellulosics. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113037
Appears in Collections: 气候减缓与适应
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作者单位: Biological and Chemical Engineering, Aarhus University, Hangøvej 2, Aarhus N, DK-8200, Denmark; Aarhus Institute of Advanced Studies, Aarhus University, Denmark
Recommended Citation:
Biller P.,Johannsen I.,dos Passos J.S.,et al. Primary sewage sludge filtration using biomass filter aids and subsequent hydrothermal co-liquefaction[J]. Water Research,2018-01-01,130