Recycling of food waste for fuel precursors using an integrated bio-refinery approach

Obulisamy Parthiba Karthikeyan; H. T. Nguyen Hao; Ali Razaghi; Kirsten Ruth Heimann

doi:10.1016/j.biortech.2017.06.122

Recycling of food waste for fuel precursors using an integrated bio-refinery approach

Obulisamy Parthiba Karthikeyan, H. T. Nguyen Hao, Ali Razaghi, Kirsten Ruth Heimann

Flinders University

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

14 Citations (Scopus)

Abstract

The main aim was to integrate FW-recycling with cultivation of Rhodotorula glutinis and anaerobic digestion (AD) for bio-energy and -fuel recovery. Mixed FW was mechanically macerated (Pcon) and hydrolysed (at 250 g L⁻¹ water) via chemical (Ch), thermal (Th) and TCh (combined Ch and Th) treatments. Cleared hydrolysates from individual pre-treatment processes were used as culture medium for cultivation of R. glutinis, while the residual solids (RS) were subjected to AD. Pcon cultivation yielded maximal R. glutinis dry weight biomass (5.18 g L⁻¹) and total fatty acid contents (1.03 g g⁻¹ DW_biomass). Dominant fatty acid methyl esters (FAME) were Palmitic – (C_16:0–26%); Stearic – (C_18:0–17%) and Oleic acids (C_18:1–38%), ideal for bio-diesel production. Highest methane yields (actual ∼0.139 m³ kg⁻¹ volatile solids) were measured from AD of Th-derived RS. Thus integrated FW recycling approaches will be more feasible for generating energy and economic incentives.

Original language	English
Pages (from-to)	194-198
Number of pages	5
Journal	Bioresource Technology
Volume	248
DOIs	https://doi.org/10.1016/j.biortech.2017.06.122
Publication status	Published - Jan 2018

Keywords

Anaerobic digestion
Biorefinery
Fatty acid methyl esters
Food waste
Methane
Rhodotorula glutinis

UN SDGs

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

Access to Document

10.1016/j.biortech.2017.06.122

Cite this

@article{b52a3260f9a7491ab3d10d9353a78e8d,

title = "Recycling of food waste for fuel precursors using an integrated bio-refinery approach",

abstract = "The main aim was to integrate FW-recycling with cultivation of Rhodotorula glutinis and anaerobic digestion (AD) for bio-energy and -fuel recovery. Mixed FW was mechanically macerated (Pcon) and hydrolysed (at 250 g L−1 water) via chemical (Ch), thermal (Th) and TCh (combined Ch and Th) treatments. Cleared hydrolysates from individual pre-treatment processes were used as culture medium for cultivation of R. glutinis, while the residual solids (RS) were subjected to AD. Pcon cultivation yielded maximal R. glutinis dry weight biomass (5.18 g L−1) and total fatty acid contents (1.03 g g−1 DWbiomass). Dominant fatty acid methyl esters (FAME) were Palmitic – (C16:0–26%); Stearic – (C18:0–17%) and Oleic acids (C18:1–38%), ideal for bio-diesel production. Highest methane yields (actual ∼0.139 m3 kg−1 volatile solids) were measured from AD of Th-derived RS. Thus integrated FW recycling approaches will be more feasible for generating energy and economic incentives.",

keywords = "Anaerobic digestion, Biorefinery, Fatty acid methyl esters, Food waste, Methane, Rhodotorula glutinis",

author = "Karthikeyan, {Obulisamy Parthiba} and {Nguyen Hao}, {H. T.} and Ali Razaghi and Heimann, {Kirsten Ruth}",

year = "2018",

month = jan,

doi = "10.1016/j.biortech.2017.06.122",

language = "English",

volume = "248",

pages = "194--198",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Recycling of food waste for fuel precursors using an integrated bio-refinery approach

AU - Karthikeyan, Obulisamy Parthiba

AU - Nguyen Hao, H. T.

AU - Razaghi, Ali

AU - Heimann, Kirsten Ruth

PY - 2018/1

Y1 - 2018/1

N2 - The main aim was to integrate FW-recycling with cultivation of Rhodotorula glutinis and anaerobic digestion (AD) for bio-energy and -fuel recovery. Mixed FW was mechanically macerated (Pcon) and hydrolysed (at 250 g L−1 water) via chemical (Ch), thermal (Th) and TCh (combined Ch and Th) treatments. Cleared hydrolysates from individual pre-treatment processes were used as culture medium for cultivation of R. glutinis, while the residual solids (RS) were subjected to AD. Pcon cultivation yielded maximal R. glutinis dry weight biomass (5.18 g L−1) and total fatty acid contents (1.03 g g−1 DWbiomass). Dominant fatty acid methyl esters (FAME) were Palmitic – (C16:0–26%); Stearic – (C18:0–17%) and Oleic acids (C18:1–38%), ideal for bio-diesel production. Highest methane yields (actual ∼0.139 m3 kg−1 volatile solids) were measured from AD of Th-derived RS. Thus integrated FW recycling approaches will be more feasible for generating energy and economic incentives.

AB - The main aim was to integrate FW-recycling with cultivation of Rhodotorula glutinis and anaerobic digestion (AD) for bio-energy and -fuel recovery. Mixed FW was mechanically macerated (Pcon) and hydrolysed (at 250 g L−1 water) via chemical (Ch), thermal (Th) and TCh (combined Ch and Th) treatments. Cleared hydrolysates from individual pre-treatment processes were used as culture medium for cultivation of R. glutinis, while the residual solids (RS) were subjected to AD. Pcon cultivation yielded maximal R. glutinis dry weight biomass (5.18 g L−1) and total fatty acid contents (1.03 g g−1 DWbiomass). Dominant fatty acid methyl esters (FAME) were Palmitic – (C16:0–26%); Stearic – (C18:0–17%) and Oleic acids (C18:1–38%), ideal for bio-diesel production. Highest methane yields (actual ∼0.139 m3 kg−1 volatile solids) were measured from AD of Th-derived RS. Thus integrated FW recycling approaches will be more feasible for generating energy and economic incentives.

KW - Anaerobic digestion

KW - Biorefinery

KW - Fatty acid methyl esters

KW - Food waste

KW - Methane

KW - Rhodotorula glutinis

UR - http://www.scopus.com/inward/record.url?scp=85024111594&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2017.06.122

DO - 10.1016/j.biortech.2017.06.122

M3 - Article

SN - 0960-8524

VL - 248

SP - 194

EP - 198

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Recycling of food waste for fuel precursors using an integrated bio-refinery approach

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this