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308246

Decolorization and detoxification of real textile dyes wastewater using free and immobilized indigenous bacterial consortium in semi-pilot scale

Article

Last updated: 01 Jan 2025

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Subjects

-

Tags

Environmental chemistry

Abstract

Most of the liquid and solid effluents from textile industries are treated by physical and chemical methods such as flocculation, adsorption, filtration and oxidation. Most of the physical methods, however, simply accumulate and concentrate dyes and create solid wastes, and this problem of disposal still exists. Therefore, the main aim of this study was to evaluate the recently developed semi-pilot system using combined biological and nanocomposites treatment for decolorizing and degrading dyes from real textile effluent. Moreover, biodegradation of synthetic and real wastewater using bacteria have been used on bench scale to optimizing the biodegradation conditions. After optimizing the condition, semi-pilot plant was operated by three mixed biocarriers, free and immobilized mixed consortium, and bio-sorption using composite nanoparticles. The obtained results showed that, a good biodegradation and decolorization process where, following all phases and semi-pilot system effluents, all measured parameters significantly decreased. Moreover, the removal percent of chemical oxygen demand (COD), biological oxygen demand (BOD) and color of the effluent of real textile wastewater in semi-pilot system under anaerobic condition reached to 67, 78.71 and 87.80%, respectively. While, the removal percent of COD, BOD and color reached to 72.35, 67.71 and 90.81% under aerobic condition, respectively. The toxicity results indicated that the treated effluent of real wastewater in the semi-pilot system was nontoxic (EC50≥100) under both aerobic and anaerobic condition.

DOI

10.21608/ejchem.2023.215695.8094

Keywords

Textile wastewater, Decolorization, Detoxification, biological treatment, nano-composite

Authors

First Name

Mohamed Azab

Last Name

El-Liethy

MiddleName

-

Affiliation

Water Pollution Research Department, National Research Centre, Dokki, 12622, Giza, Egypt

Email

mohamedazabr@yahoo.com

City

Cairo

Orcid

0000-0002-8392-2355

First Name

Bahaa

Last Name

Hemdan

MiddleName

-

Affiliation

Water Pollution Research Department, National Research Centre, Dokki, 12622, Giza, Egypt

Email

bahaa_nrc@yahoo.com

City

-

Orcid

-

First Name

Mohammed Saad

Last Name

Hellal

MiddleName

-

Affiliation

Water Pollution Research Department, National Research Centre, Dokki, 12622, Giza, Egypt

Email

mshellal86@gmail.com

City

-

Orcid

0000-0003-1887-6951

First Name

Kholod

Last Name

Kamal

MiddleName

H.

Affiliation

Water Pollution Research Department, National Research Centre, Dokki, 12622, Giza, Egypt

Email

kholod.hamdy@yahoo.com

City

-

Orcid

-

First Name

Ali

Last Name

abou hammad

MiddleName

Belal

Affiliation

Solid State Physics Department, Physics Research Institute, National Research Centre, Dokki, 12622, Giza, Egypt

Email

abohmad2@yahoo.com

City

Cairo

Orcid

0000-0003-4467-7059

First Name

Enas

Last Name

Aboutaleb

MiddleName

-

Affiliation

Water Pollution Research Department, National Research Centre, Dokki, 12622, Giza, Egypt

Email

enas_aboutaleb@hotmail.com

City

-

Orcid

0000-0002-5755-6275

First Name

Amany

Last Name

El Nahrawy

MiddleName

M.

Affiliation

Solid State Physics Department, Physics Research Institute, National Research Centre, Dokki, 12622, Giza, Egypt

Email

amany_physics_1980@yahoo.com

City

Giza, Egypt

Orcid

0000-0002-3501-2541

First Name

Gamila E.

Last Name

El-Taweel

MiddleName

-

Affiliation

Water Pollution Research Department, National Research Centre, Dokki, 12622, Giza, Egypt

Email

gamilaeltaweel@yhaoo.com

City

-

Orcid

-

Volume

67

Article Issue

1

Related Issue

44392

Issue Date

2024-01-01

Receive Date

2023-06-05

Publish Date

2024-01-01

Page Start

353

Page End

370

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 67_Issue 1_Pages 353-370.pdf

PDF . 963.3kB

Link

https://ejchem.journals.ekb.eg/article_308246.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=308246

Order

308,246

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

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

MainTitle

Decolorization and detoxification of real textile dyes wastewater using free and immobilized indigenous bacterial consortium in semi-pilot scale

Details

Type

Article

Created At

30 Dec 2024