A novel approach for simultaneous improvement of dewaterability, post-digestion liquor properties and toluene removal from anaerobically digested sludge

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F16%3A00003277" target="_blank" >RIV/46747885:24220/16:00003277 - isvavai.cz</a>

Alternative codes found

RIV/46747885:24620/16:00003277

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S1385894716300717" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1385894716300717</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2016.01.103" target="_blank" >10.1016/j.cej.2016.01.103</a>

Result language

angličtina

Original language name

A novel approach for simultaneous improvement of dewaterability, post-digestion liquor properties and toluene removal from anaerobically digested sludge

Original language description

Anaerobically digested sludge (ADS) is a major product of anaerobic digestion a widely used and economically viable microbial process used in wastewater treatment plants (WWTP) to break down biodegradable material in the absence of oxygen. Although anaerobic digestion is considered environmentally safe, the sludge often possesses undesirable properties including resistance to dewatering and high concentrations of harmful or deleterious compounds. Toluene is one of the hazardous products of anaerobic digestion that can be harmful to humans and the environment. In previous studies, it was demonstrated that persulfates: peroxydisulfate (PDS, S2O82−) and peroxymonosulfate (PMS, HSO5−) could be successfully used in the sludge treatment process. In this study, it was demonstrated that elevated temperatures from meso- or thermophilic digestion could activate persulfate creating highly reactive sulfate and hydroxyl radicals. These radicals can oxidize toluene and other organic matter in ADS thereby improving its dewaterability. Furthermore, supernatant obtained after oxidation treatment was conditioned by struvite precipitation in order to remove ammonium nitrogen and phosphates. The results of this study indicate large improvements in ADS properties after PDS treatment in comparison to PMS or temperature conditioning alone.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DJ - Pollution and water control

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

—

Volume of the periodical

291

Issue of the periodical within the volume

May

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

7

Pages from-to

192-198

UT code for WoS article

000372693100020

EID of the result in the Scopus database

2-s2.0-84957928554