Advanced oxidation of water soluble organics (WSO) from near- and supercritical hydrothermal liquefaction (HTL) of biomass

Publikation: Konferencebidrag uden forlag/tidsskriftKonferenceabstrakt til konferenceForskningpeer review

Resumé

The challenges involving procuring the necessary water and energy resources for the future generations are partially entwined. An example of the close water-energy dependency is the production of drop-in biofuels by hydrothermal liquefaction (HTL) of biomass in near- and supercritical water. Numerous applications of HTL for conversion of wastes with high water contents (sewage, manure, or lipid-rich algae cultivated on wastewater nutrients) to high-value drop-in biofuels have been studied. The main bulk of the research focuses on the optimization of the biocrude production, while management of the water phase, which contains a large part of the converted biomass (approx. 40 wt.%), is considered a secondary issue. This approach is short-sighted, as an efficient water management, either extraction of the valuables or wastewater treatment, will have to be an integral part of a sustainable HTL in the future biorefineries. In this study, selected advanced oxidation processes (electrochemical oxidation - EO, Fenton oxidation - FO, and supercritical water oxidation - SCWO) were screened to determine their suitability for purification of the aqueous phase produced on a continuous bench scale HTL pilot plant at Aalborg University, Denmark. The effectiveness of each process was evaluated concerning the organic content (TOC and COD) as well as the detailed composition of the samples (GCMS). Chosen process parameters were varied in the experiments (electric current - EO, concentration of H2O2 - FO, and reaction time - SCWO). The results have shown that both WSO and its degradation products, including furans, dioxins, and phenols, are highly toxic. FO was the most efficient method of treatment, but it required significant amounts of chemicals. In EO, no reactants were necessary, but the process depended on a notable energy input. SCWO efficiency was medium, but the process is the most sustainable and thus worth further optimizing.
OriginalsprogEngelsk
Publikationsdato11 sep. 2016
Antal sider1
StatusUdgivet - 11 sep. 2016
Begivenhed1st International Conference on Sustainable Water Processing - Hotel and Conference Center Melia Sitges, Sitges, Spanien
Varighed: 11 sep. 201614 sep. 2016
https://www.elsevier.com/events/conferences/international-conference-on-sustainable-water-processing

Konference

Konference1st International Conference on Sustainable Water Processing
LokationHotel and Conference Center Melia Sitges
LandSpanien
BySitges
Periode11/09/201614/09/2016
Internetadresse

Citer dette

@conference{e81d4fd365514292b89013fbf5f9fc65,
title = "Advanced oxidation of water soluble organics (WSO) from near- and supercritical hydrothermal liquefaction (HTL) of biomass",
abstract = "The challenges involving procuring the necessary water and energy resources for the future generations are partially entwined. An example of the close water-energy dependency is the production of drop-in biofuels by hydrothermal liquefaction (HTL) of biomass in near- and supercritical water. Numerous applications of HTL for conversion of wastes with high water contents (sewage, manure, or lipid-rich algae cultivated on wastewater nutrients) to high-value drop-in biofuels have been studied. The main bulk of the research focuses on the optimization of the biocrude production, while management of the water phase, which contains a large part of the converted biomass (approx. 40 wt.{\%}), is considered a secondary issue. This approach is short-sighted, as an efficient water management, either extraction of the valuables or wastewater treatment, will have to be an integral part of a sustainable HTL in the future biorefineries. In this study, selected advanced oxidation processes (electrochemical oxidation - EO, Fenton oxidation - FO, and supercritical water oxidation - SCWO) were screened to determine their suitability for purification of the aqueous phase produced on a continuous bench scale HTL pilot plant at Aalborg University, Denmark. The effectiveness of each process was evaluated concerning the organic content (TOC and COD) as well as the detailed composition of the samples (GCMS). Chosen process parameters were varied in the experiments (electric current - EO, concentration of H2O2 - FO, and reaction time - SCWO). The results have shown that both WSO and its degradation products, including furans, dioxins, and phenols, are highly toxic. FO was the most efficient method of treatment, but it required significant amounts of chemicals. In EO, no reactants were necessary, but the process depended on a notable energy input. SCWO efficiency was medium, but the process is the most sustainable and thus worth further optimizing.",
author = "Arturi, {Katarzyna Ratajczyk} and Nielsen, {Rudi Pankratz} and Jens Muff and Simonsen, {Morten Enggrob} and S{\o}gaard, {Erik Gydesen}",
year = "2016",
month = "9",
day = "11",
language = "English",
note = "null ; Conference date: 11-09-2016 Through 14-09-2016",
url = "https://www.elsevier.com/events/conferences/international-conference-on-sustainable-water-processing",

}

Arturi, KR, Nielsen, RP, Muff, J, Simonsen, ME & Søgaard, EG 2016, 'Advanced oxidation of water soluble organics (WSO) from near- and supercritical hydrothermal liquefaction (HTL) of biomass' 1st International Conference on Sustainable Water Processing, Sitges, Spanien, 11/09/2016 - 14/09/2016, .

Advanced oxidation of water soluble organics (WSO) from near- and supercritical hydrothermal liquefaction (HTL) of biomass. / Arturi, Katarzyna Ratajczyk; Nielsen, Rudi Pankratz; Muff, Jens; Simonsen, Morten Enggrob; Søgaard, Erik Gydesen.

2016. Abstract fra 1st International Conference on Sustainable Water Processing, Sitges, Spanien.

Publikation: Konferencebidrag uden forlag/tidsskriftKonferenceabstrakt til konferenceForskningpeer review

TY - ABST

T1 - Advanced oxidation of water soluble organics (WSO) from near- and supercritical hydrothermal liquefaction (HTL) of biomass

AU - Arturi, Katarzyna Ratajczyk

AU - Nielsen, Rudi Pankratz

AU - Muff, Jens

AU - Simonsen, Morten Enggrob

AU - Søgaard, Erik Gydesen

PY - 2016/9/11

Y1 - 2016/9/11

N2 - The challenges involving procuring the necessary water and energy resources for the future generations are partially entwined. An example of the close water-energy dependency is the production of drop-in biofuels by hydrothermal liquefaction (HTL) of biomass in near- and supercritical water. Numerous applications of HTL for conversion of wastes with high water contents (sewage, manure, or lipid-rich algae cultivated on wastewater nutrients) to high-value drop-in biofuels have been studied. The main bulk of the research focuses on the optimization of the biocrude production, while management of the water phase, which contains a large part of the converted biomass (approx. 40 wt.%), is considered a secondary issue. This approach is short-sighted, as an efficient water management, either extraction of the valuables or wastewater treatment, will have to be an integral part of a sustainable HTL in the future biorefineries. In this study, selected advanced oxidation processes (electrochemical oxidation - EO, Fenton oxidation - FO, and supercritical water oxidation - SCWO) were screened to determine their suitability for purification of the aqueous phase produced on a continuous bench scale HTL pilot plant at Aalborg University, Denmark. The effectiveness of each process was evaluated concerning the organic content (TOC and COD) as well as the detailed composition of the samples (GCMS). Chosen process parameters were varied in the experiments (electric current - EO, concentration of H2O2 - FO, and reaction time - SCWO). The results have shown that both WSO and its degradation products, including furans, dioxins, and phenols, are highly toxic. FO was the most efficient method of treatment, but it required significant amounts of chemicals. In EO, no reactants were necessary, but the process depended on a notable energy input. SCWO efficiency was medium, but the process is the most sustainable and thus worth further optimizing.

AB - The challenges involving procuring the necessary water and energy resources for the future generations are partially entwined. An example of the close water-energy dependency is the production of drop-in biofuels by hydrothermal liquefaction (HTL) of biomass in near- and supercritical water. Numerous applications of HTL for conversion of wastes with high water contents (sewage, manure, or lipid-rich algae cultivated on wastewater nutrients) to high-value drop-in biofuels have been studied. The main bulk of the research focuses on the optimization of the biocrude production, while management of the water phase, which contains a large part of the converted biomass (approx. 40 wt.%), is considered a secondary issue. This approach is short-sighted, as an efficient water management, either extraction of the valuables or wastewater treatment, will have to be an integral part of a sustainable HTL in the future biorefineries. In this study, selected advanced oxidation processes (electrochemical oxidation - EO, Fenton oxidation - FO, and supercritical water oxidation - SCWO) were screened to determine their suitability for purification of the aqueous phase produced on a continuous bench scale HTL pilot plant at Aalborg University, Denmark. The effectiveness of each process was evaluated concerning the organic content (TOC and COD) as well as the detailed composition of the samples (GCMS). Chosen process parameters were varied in the experiments (electric current - EO, concentration of H2O2 - FO, and reaction time - SCWO). The results have shown that both WSO and its degradation products, including furans, dioxins, and phenols, are highly toxic. FO was the most efficient method of treatment, but it required significant amounts of chemicals. In EO, no reactants were necessary, but the process depended on a notable energy input. SCWO efficiency was medium, but the process is the most sustainable and thus worth further optimizing.

UR - https://elsevier.conference-services.net/programme.asp?conferenceID=3971&action=prog_list&session=39745

M3 - Conference abstract for conference

ER -