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337559

Monitoring of the Groundwater Contamination at a Sludge Disposal Facility, Alexandria

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Last updated: 03 Jan 2025

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Abstract

Sludge production in Alexandria is currently about 46,000 ton dry solids [tdsl/y. This will increase to 180,000 tds/y by 2025. The study aims at monitoring the contamination of the underground and surface water at a site used for treating and disposing of the delivered sludge, ep scum, and screenings. Before 1999, 90% of the sludge was spread over the site surface and 10% was composted. In 1999, all the sludge is being composted. Eight shallow and 2 deep t wells, and 4 surface water points along the nearest canal have been selected to assist in monitoring the contamination. The change in salinity across the site is due to fresh water unfaltering from the Bahig Canal. The levels of potential contaminants detected in the groundwater underlying site 9N are at levels below the EPA and Egyptian drinking water standards except for in certain instances nitrate/nitrite, and total chromium, total lead, total arsenic, and total beryllium. The results indicate that spreading may be considered the reason of increasing the levels of some heavy metals from the leaching of retained metals in the soils from the previous spreading method. No soil analysis was done to identify the concentration e levels of the different metals. Consequently, this increase may be due the leaching of metals present in the soil and/ or from the spread sludge. The high salinity and the increased amount e of nitrate in the water can cause increased solubility of metals from the soils into the groundwater. The results showed that there is no contamination from the activity of the site on the Canal. Continued monitoring of the site is required to determine if the long-term use of the site is adversely affecting the groundwater and canal water.

DOI

10.21608/jhiph.1999.337559

Keywords

Monitoring, Groundwater, Contamination, Sludge Disposal Facility, alexandria

Authors

First Name

Mohamed

Last Name

Ramadan

MiddleName

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Affiliation

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

Email

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City

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Orcid

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First Name

Helaly

Last Name

Helaly

MiddleName

-

Affiliation

Site 9N, Alexandria General Organization for Sanitary Drainage, Egypt

Email

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City

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Orcid

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First Name

Mamdouh

Last Name

EL-Messery

MiddleName

-

Affiliation

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

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City

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Orcid

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Volume

29

Article Issue

4

Related Issue

43989

Issue Date

1999-10-01

Receive Date

2024-01-21

Publish Date

1999-10-01

Page Start

791

Page End

802

Print ISSN

2357-0601

Online ISSN

2357-061X

Link

https://jhiphalexu.journals.ekb.eg/article_337559.html

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https://jhiphalexu.journals.ekb.eg/service?article_code=337559

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14

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

Monitoring of the Groundwater Contamination at a Sludge Disposal Facility, Alexandria

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Article

Created At

23 Dec 2024