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323701

Low-Cost Mbr For Sewage Treatment As Non-Conventional Water Resource

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Environmental chemistry

Abstract

Egypt suffers from water scarcity, therefore non-conventional water resources are needed to secure increasing water demand in the various development processes especially agriculture sector which consumes 85% of the water budget. Well- treated sewage water represents a good source for land irrigation that is an alternate solution for environmental disposal of the treated sewage. In this study, a cloth-media membrane bioreactor (MBR) was designed, manufactured and evaluated for sewage treatment at different operating conditions. Cloth-media filter with 0.553 m2 effective filtration area was submerged in an aeration tank with 50 L theoretical working volume and 44.5 L effective working volume. The system was operated for three different Hydraulic Retention Time (HRT) and two different dissolved oxygen (DO) concentration. The HRTs are 4, 6 and 8 hours while dissolved oxygen concentrations were 4.5 mg/l and 2.3 mg/l. Sludge residence time (SRT) was maintained at 29.7 days by removing 1.5 L from the mixed liquor suspended solids (MLSS) on daily basis. The system operation showed significant impact of the DO concentration and HRT on the treatment performance with higher efficiency at higher DO concentration and longest HRT. At high DO concentration, the range of residual concentrations was 10.4-20.3 mgCOD/L and 4.2-10.1 mgBOD/L while at low DO concentration the ranges were 17.5-30.1 mg COD/L and 7.6-14.8 mg BOD/L. Both DO concentration and HRT have significant impact, directly or indirectly, on the membrane fouling. Economically, the system operation at low DO concentration (2 ppm) and medium HRT (6 hrs) was found cost-effective, sustainable and provided treated effluent complying physico-chemically with reuse standards.

DOI

10.21608/ejchem.2023.230512.8458

Keywords

Cloth-media, MBR, Sewage, non-conventional water resource, effluent reuse, membrane fouling

Authors

First Name

Abdullah S.

Last Name

Abdelfadil

MiddleName

-

Affiliation

Department of Water Pollution Research, National Research Centre, Cairo, Egypt

Email

abdo_chem2010@yahoo.com

City

-

Orcid

-

First Name

M.M,

Last Name

Abo-Aly

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Saber A.

Last Name

El-Shafai

MiddleName

-

Affiliation

Department of Water Pollution Research, National Research Centre, Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Fayza A.

Last Name

Nasr

MiddleName

-

Affiliation

Department of Water Pollution Research, National Research Centre, Cairo, Egypt

Email

-

City

-

Orcid

-

Volume

67

Article Issue

5

Related Issue

46682

Issue Date

2024-05-01

Receive Date

2023-08-20

Publish Date

2024-05-01

Page Start

347

Page End

360

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_323701.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=323701

Order

323,701

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Low-Cost Mbr For Sewage Treatment As Non-Conventional Water Resource

Details

Type

Article

Created At

30 Dec 2024