Beta
324840

Pollution Abatment at the Beamhouse of El-Nasr Tanning Company

Article

Last updated: 23 Dec 2024

Subjects

-

Tags

-

Abstract

El-Nasr Tanning Company processing the hides into finished leather. Treatment of the hides involves a series of batch operations involving application of a wide range of physical and chemical processes. The three principal tannery operations carried out are Beamhouse operations, Tanning operations and dyeing and fat liquoring and finishing operations. Wastewater discharged contains pollutants from the hides, products from their decomposition, chemicals and various spent solutions used for preparation and during the tanning process. Beamhouse waste contributes to 66% of the total waste and contains high chemical oxygen demand, inorganic products as chlorides, sulfides and ammonia which cause serious damage to the sewerage network. So, the aim of this study is to abate the pollution problems at the beamhouse. The abatement was done by applying mechanical desalting of the salted hides before soaking and the use of enzyme in soaking of liming and unhairing process. The mechanical desalting achieved reduction of total dissolved solids, chlorides, and chemical oxygen demand by 35%, 41% and 50% respectively. While, the quality of the leather is improved with respect to chemical properties. The use of enzyme in soaking of liming and unhairing process gave better quality of leather especially for African hides. On the other hand, it led to the reduction of hydrogen sulfide to 50%, chemical oxygen demand to 53% and conservation of water and energy consumption by 50%. So, this study recommended to apply mechanical desalting process before soaking and the salt separated can be reused in preservation of the hides or in chrome tanning process. Also, use of enzyme in soaking of liming and unhairing process to give long save hair removal which can be screened and reused in the binder manufacture. While, the spent solution can be recycled again in the liming process.

DOI

10.21608/jhiph.1999.324840

Keywords

Pollution Abatment, Beamhouse, El-Nasr Tanning Company

Authors

First Name

Manal

Last Name

Ahmed

MiddleName

-

Affiliation

Environmental Health Department, High Institute of Public Health, Alexandria University, Egypt

Email

manalhassan_44@hotmail.com

City

-

Orcid

-

First Name

Abd El-Aziz

Last Name

Kotb

MiddleName

-

Affiliation

General Manager of Research Department, El-Nasr Tanning Company, Egypt

Email

-

City

-

Orcid

-

Volume

29

Article Issue

4

Related Issue

43989

Issue Date

1999-10-01

Receive Date

2023-11-06

Publish Date

1999-10-01

Page Start

659

Page End

670

Print ISSN

2357-0601

Online ISSN

2357-061X

Link

https://jhiphalexu.journals.ekb.eg/article_324840.html

Detail API

https://jhiphalexu.journals.ekb.eg/service?article_code=324840

Order

3

Type

Original Article

Type Code

511

Publication Type

Journal

Publication Title

Journal of High Institute of Public Health

Publication Link

https://jhiphalexu.journals.ekb.eg/

MainTitle

Pollution Abatment at the Beamhouse of El-Nasr Tanning Company

Details

Type

Article

Created At

23 Dec 2024