Hydrothermal degradation of organic matter in municipal sludge using non-catalytic wet oxidation

Saeid Baroutian; Anne-Marie Smit; John Andrews; Brent Young; Daniel Gapes

doi:10.1016/j.cej.2014.09.063

Back

Hydrothermal degradation of organic matter in municipal sludge using non-catalytic wet oxidation

Journal article

Peer reviewed

Hydrothermal degradation of organic matter in municipal sludge using non-catalytic wet oxidation

Saeid Baroutian, Anne-Marie Smit, John Andrews, Brent Young and Daniel Gapes

Chemical Engineering Journal, Vol.260, pp.846-854

2015

DOI: https://doi.org/10.1016/j.cej.2014.09.063

Files and links (1)

url

https://doi.org/10.1016/j.cej.2014.09.063View

Published Version

Abstract

wet oxidation

hydrothermal processing

municipal sludge

wastewater

Of the treatment and conversion technologies used for municipal sludge, wet oxidation has become an important process owing to the characteristics of water as a reaction medium at elevated temperature and pressure. This study aimed to investigate the non-catalytic wet oxidation of municipal sludge and degradation of solids, organic matter and other compounds. A digested sludge consisting of primary and secondary sludges was subjected to 60. min wet oxidation at temperatures ranging between 220 and 240. °C and oxygen to biomass ratios of 1:1-2:1. Wet oxidation was effective at degrading the organic solids, with maximum degradation of 86% for total suspended solids and 96% for volatile suspended solids. The concentration of oxidisable organic matter was reduced by 98% of the untreated sludge. It was found that reaction temperature has the most significant impact on sludge oxidation.

Details

Title: Hydrothermal degradation of organic matter in municipal sludge using non-catalytic wet oxidation
Authors: Saeid Baroutian (Author) - University of Auckland, New Zealand
Anne-Marie Smit (Author) - Scion, New Zealand
John Andrews (Author) - Scion, New Zealand
Brent Young (Author) - University of Auckland, New Zealand
Daniel Gapes (Author) - Scion, New Zealand
Publication details: Chemical Engineering Journal, Vol.260, pp.846-854
Publisher: Elsevier BV
Date published: 2015
DOI: 10.1016/j.cej.2014.09.063
ISSN: 1385-8947; 1385-8947
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Industries Research Centre
Language: English
Record Identifier: 99451392002621
Output Type: Journal article

Metrics

226 Record Views

68 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration
Web Of Science research areas: Engineering, Chemical; Engineering, Environmental

UN Sustainable Development Goals (SDGs)

This output has contributed to the advancement of the following goals:

Source: InCites