Combination of ultrasound and Fenton treatment for improving the hydrolysis and acidification of waste activated sludge

Hongxu Bao; Lei Jiang; Chunxiao Chen; Chunxue Yang; Zhangwei He; Yaodong Feng; Weiwei Cai; Wenzong Liu; Aijie Wang

doi:10.1039/c5ra05791d

Combination of ultrasound and Fenton treatment for improving the hydrolysis and acidification of waste activated sludge

Hongxu Bao^*
, Lei Jiang
, Chunxiao Chen
, Chunxue Yang
, Zhangwei He
, Yaodong Feng
, Weiwei Cai
, Wenzong Liu
, Aijie Wang

^*Corresponding author for this work

Liaoning University
Harbin Institute of Technology
CAS - Research Center for Eco-Environmental Sciences

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

28 Scopus citations

Abstract

The effects of ultrasound (US), Fenton treatment, and combined US/Fenton treatment as physicochemical pretreatment processes for waste activated sludge (WAS) hydrolysis and acidification were investigated in this study. The soluble carbohydrate concentrations after US/Fenton treatment were 2.36-fold, 2.17-fold and 17.11-fold more than that obtained by the Fenton treatment, US and control tests, respectively. The corresponding concentrations of soluble protein after US/Fenton treatment were 2.43-fold, 1.47-fold and 13.37-fold more than that obtained by the Fenton treatment, US and control tests, respectively. The degree of sludge disintegration (DD_COD) for the US/Fenton treatment was 15.4%, whereas it was only 9.97% and 3.18% for the US and Fenton tests. The maximum accumulation of volatile fatty acids (VFAs) was obtained by the US/Fenton pretreatment (4594 mg COD L^-1), which presented obvious advantages over US (3485 mg COD L^-1) and Fenton (2700 mg COD L^-1) treatments. The combination of the US and Fenton treatments had a synergetic effect on improving the hydrolysis and subsequent acidification of WAS.

Original language	English
Pages (from-to)	48468-48473
Number of pages	6
Journal	RSC Advances
Volume	5
Issue number	60
DOIs	https://doi.org/10.1039/c5ra05791d
State	Published - 2015

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@article{f82daf2388f241f6959f6e54a985363e,

title = "Combination of ultrasound and Fenton treatment for improving the hydrolysis and acidification of waste activated sludge",

abstract = "The effects of ultrasound (US), Fenton treatment, and combined US/Fenton treatment as physicochemical pretreatment processes for waste activated sludge (WAS) hydrolysis and acidification were investigated in this study. The soluble carbohydrate concentrations after US/Fenton treatment were 2.36-fold, 2.17-fold and 17.11-fold more than that obtained by the Fenton treatment, US and control tests, respectively. The corresponding concentrations of soluble protein after US/Fenton treatment were 2.43-fold, 1.47-fold and 13.37-fold more than that obtained by the Fenton treatment, US and control tests, respectively. The degree of sludge disintegration (DDCOD) for the US/Fenton treatment was 15.4\%, whereas it was only 9.97\% and 3.18\% for the US and Fenton tests. The maximum accumulation of volatile fatty acids (VFAs) was obtained by the US/Fenton pretreatment (4594 mg COD L-1), which presented obvious advantages over US (3485 mg COD L-1) and Fenton (2700 mg COD L-1) treatments. The combination of the US and Fenton treatments had a synergetic effect on improving the hydrolysis and subsequent acidification of WAS.",

author = "Hongxu Bao and Lei Jiang and Chunxiao Chen and Chunxue Yang and Zhangwei He and Yaodong Feng and Weiwei Cai and Wenzong Liu and Aijie Wang",

note = "Publisher Copyright: {\textcopyright} 2015 Royal Society of Chemistry.",

year = "2015",

doi = "10.1039/c5ra05791d",

language = "英语",

volume = "5",

pages = "48468--48473",

journal = "RSC Advances",

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TY - JOUR

T1 - Combination of ultrasound and Fenton treatment for improving the hydrolysis and acidification of waste activated sludge

AU - Bao, Hongxu

AU - Jiang, Lei

AU - Chen, Chunxiao

AU - Yang, Chunxue

AU - He, Zhangwei

AU - Feng, Yaodong

AU - Cai, Weiwei

AU - Liu, Wenzong

AU - Wang, Aijie

PY - 2015

Y1 - 2015

N2 - The effects of ultrasound (US), Fenton treatment, and combined US/Fenton treatment as physicochemical pretreatment processes for waste activated sludge (WAS) hydrolysis and acidification were investigated in this study. The soluble carbohydrate concentrations after US/Fenton treatment were 2.36-fold, 2.17-fold and 17.11-fold more than that obtained by the Fenton treatment, US and control tests, respectively. The corresponding concentrations of soluble protein after US/Fenton treatment were 2.43-fold, 1.47-fold and 13.37-fold more than that obtained by the Fenton treatment, US and control tests, respectively. The degree of sludge disintegration (DDCOD) for the US/Fenton treatment was 15.4%, whereas it was only 9.97% and 3.18% for the US and Fenton tests. The maximum accumulation of volatile fatty acids (VFAs) was obtained by the US/Fenton pretreatment (4594 mg COD L-1), which presented obvious advantages over US (3485 mg COD L-1) and Fenton (2700 mg COD L-1) treatments. The combination of the US and Fenton treatments had a synergetic effect on improving the hydrolysis and subsequent acidification of WAS.

AB - The effects of ultrasound (US), Fenton treatment, and combined US/Fenton treatment as physicochemical pretreatment processes for waste activated sludge (WAS) hydrolysis and acidification were investigated in this study. The soluble carbohydrate concentrations after US/Fenton treatment were 2.36-fold, 2.17-fold and 17.11-fold more than that obtained by the Fenton treatment, US and control tests, respectively. The corresponding concentrations of soluble protein after US/Fenton treatment were 2.43-fold, 1.47-fold and 13.37-fold more than that obtained by the Fenton treatment, US and control tests, respectively. The degree of sludge disintegration (DDCOD) for the US/Fenton treatment was 15.4%, whereas it was only 9.97% and 3.18% for the US and Fenton tests. The maximum accumulation of volatile fatty acids (VFAs) was obtained by the US/Fenton pretreatment (4594 mg COD L-1), which presented obvious advantages over US (3485 mg COD L-1) and Fenton (2700 mg COD L-1) treatments. The combination of the US and Fenton treatments had a synergetic effect on improving the hydrolysis and subsequent acidification of WAS.

UR - https://www.scopus.com/pages/publications/84930652970

U2 - 10.1039/c5ra05791d

DO - 10.1039/c5ra05791d

M3 - 文章

AN - SCOPUS:84930652970

SN - 2046-2069

VL - 5

SP - 48468

EP - 48473

JO - RSC Advances

JF - RSC Advances

IS - 60

ER -

Combination of ultrasound and Fenton treatment for improving the hydrolysis and acidification of waste activated sludge

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