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124399

DEWATERING THE SLUDGE GENERATED FROM WATER TREATMENT PLANTS WITH TWO HYDROCYLONES IN SERIES

Article

Last updated: 26 Dec 2024

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Subjects

-

Tags

Mining and Metallurgical Engineering.

Abstract

A large quantity of sludge is generated each year from the water treatment plants in Egypt. Some plants dispose the generated sludge into the Nile river, the others which far from the Nile river banks dispose the sludge in the nearest site beside the plant. The pumped sludge contains at least 96 % water, which causes certain environmental problems and health hazards in the future. The future trend of sludge management, are to convert the produced sludge into useful materials. One of the industrial centrifugal separators is the hydrocyclone. It has been used widely in industry for dewatering suspensions, such as liquid clarification, slurry thickening (or both simultaneously), and solid washing. The present work focused on the use of one stage or two stage hydrocyclone as dewatering tool for thickening, the sludge generated from water treatment plant of New Assiut City (Assiut, Egypt). The effect of feed concentration on dewatering performance of the hydrocyclone was studied using two identical hydrocyclones each of 50 mm diameter. The obtained results show that, using one stage hydrocylone is not effective in thickening the sludge. To improve overall recoveries of thicker sludge and clearer overflow simultaneously, two stages hydrocyclone connected in series are used. The overall recovery of the whole system is better than the recovery of any of the individual cyclones used within 20—24 % when diluted feed solid concentration less than 2 % was used. It is hoped that this work will lead to an improvement in the utilization of the hydrocyclones in dewatering the sludge generated from fresh water treatment plants.

DOI

10.21608/jesaun.2010.124399

Keywords

Water treatment sludge, Hydrocyclone, Dewatering

Authors

First Name

Sh.A.

Last Name

Rizk

MiddleName

-

Affiliation

Demonstrator in Mining & Metall. Eng. Dept, faculty of Eng. , Assiut Univ., Assiut, Egypt

Email

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City

-

Orcid

-

First Name

A.A.

Last Name

Mageed

MiddleName

-

Affiliation

Prof's of mineral processing in Mining & Metall. Eng. Dept, faculty of Eng., Assiut Univ., Assiut, Egypt

Email

-

City

-

Orcid

-

First Name

M.H.

Last Name

Abu-Ali

MiddleName

-

Affiliation

Prof's of mineral processing in Mining & Metall. Eng. Dept, faculty of Eng., Assiut Univ., Assiut, Egypt

Email

-

City

-

Orcid

-

Volume

38

Article Issue

No 3

Related Issue

16848

Issue Date

2010-05-01

Receive Date

2010-02-24

Publish Date

2010-05-01

Page Start

797

Page End

806

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 38_Issue No 3_Pages 797-806.pdf

PDF . 466.4kB

Link

https://jesaun.journals.ekb.eg/article_124399.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=124399

Order

13

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

DEWATERING THE SLUDGE GENERATED FROM WATER TREATMENT PLANTS WITH TWO HYDROCYLONES IN SERIES

Details

Type

Article

Created At

23 Jan 2023