Hydrogeochemical impacts of the Gaborone landfill on its surrounding subsurface environments

Yvonne Bogatsu, Eliot Atekwana, Georges-Ivo Ekosse, Estella Atekwana, Otlogetswe Totolo

Research output: Contribution to journalArticle

Abstract

A hyrogeochemical study is currently being undertaken to assess the impact of the Gaborone landfill on its surrounding surface and subsurface water resources. Soil and granitic saprolite were analysed for their minerals content. Surface and subsurface water samples were analysed for water quality indicators, dissolved inorganic carbon (DIC) concentration and δ¹³ CDIC . Geophysical investigations employing electromagnetic and electrical resistivity techniques were conducted in order to delineate the presence of any leachate emanating from the landfill. There are observed changes in water chemistry in the environment, which could be accounted for by the weathering of aquifer minerals being enhanced by carbonic and organic acids presumably from the landfill and sewage ponds. Moreover, two major contaminant plumes were identified as well as several smaller ones. Further research is needed to fully characterise the plumes in order to assess the landfill's full impact on the environment.
Original languageEnglish
Number of pages6
JournalBotswana Notes and Records
Volume32
DOIs
Publication statusPublished - Jan 1 2000

Fingerprint

landfill
plume
saprolite
dissolved inorganic carbon
mineral
organic acid
water chemistry
leachate
electrical resistivity
sewage
weathering
pond
water resource
aquifer
water quality
pollutant
soil
water

Cite this

Bogatsu, Yvonne ; Atekwana, Eliot ; Ekosse, Georges-Ivo ; Atekwana, Estella ; Totolo, Otlogetswe. / Hydrogeochemical impacts of the Gaborone landfill on its surrounding subsurface environments. In: Botswana Notes and Records. 2000 ; Vol. 32.
@article{659361b47fb14443b07fa42805210cd2,
title = "Hydrogeochemical impacts of the Gaborone landfill on its surrounding subsurface environments",
abstract = "A hyrogeochemical study is currently being undertaken to assess the impact of the Gaborone landfill on its surrounding surface and subsurface water resources. Soil and granitic saprolite were analysed for their minerals content. Surface and subsurface water samples were analysed for water quality indicators, dissolved inorganic carbon (DIC) concentration and δ¹³ CDIC . Geophysical investigations employing electromagnetic and electrical resistivity techniques were conducted in order to delineate the presence of any leachate emanating from the landfill. There are observed changes in water chemistry in the environment, which could be accounted for by the weathering of aquifer minerals being enhanced by carbonic and organic acids presumably from the landfill and sewage ponds. Moreover, two major contaminant plumes were identified as well as several smaller ones. Further research is needed to fully characterise the plumes in order to assess the landfill's full impact on the environment.",
author = "Yvonne Bogatsu and Eliot Atekwana and Georges-Ivo Ekosse and Estella Atekwana and Otlogetswe Totolo",
year = "2000",
month = "1",
day = "1",
doi = "10.2307/40980274",
language = "English",
volume = "32",
journal = "Botswana Notes and Records",

}

Hydrogeochemical impacts of the Gaborone landfill on its surrounding subsurface environments. / Bogatsu, Yvonne; Atekwana, Eliot; Ekosse, Georges-Ivo; Atekwana, Estella; Totolo, Otlogetswe.

In: Botswana Notes and Records, Vol. 32, 01.01.2000.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Hydrogeochemical impacts of the Gaborone landfill on its surrounding subsurface environments

AU - Bogatsu, Yvonne

AU - Atekwana, Eliot

AU - Ekosse, Georges-Ivo

AU - Atekwana, Estella

AU - Totolo, Otlogetswe

PY - 2000/1/1

Y1 - 2000/1/1

N2 - A hyrogeochemical study is currently being undertaken to assess the impact of the Gaborone landfill on its surrounding surface and subsurface water resources. Soil and granitic saprolite were analysed for their minerals content. Surface and subsurface water samples were analysed for water quality indicators, dissolved inorganic carbon (DIC) concentration and δ¹³ CDIC . Geophysical investigations employing electromagnetic and electrical resistivity techniques were conducted in order to delineate the presence of any leachate emanating from the landfill. There are observed changes in water chemistry in the environment, which could be accounted for by the weathering of aquifer minerals being enhanced by carbonic and organic acids presumably from the landfill and sewage ponds. Moreover, two major contaminant plumes were identified as well as several smaller ones. Further research is needed to fully characterise the plumes in order to assess the landfill's full impact on the environment.

AB - A hyrogeochemical study is currently being undertaken to assess the impact of the Gaborone landfill on its surrounding surface and subsurface water resources. Soil and granitic saprolite were analysed for their minerals content. Surface and subsurface water samples were analysed for water quality indicators, dissolved inorganic carbon (DIC) concentration and δ¹³ CDIC . Geophysical investigations employing electromagnetic and electrical resistivity techniques were conducted in order to delineate the presence of any leachate emanating from the landfill. There are observed changes in water chemistry in the environment, which could be accounted for by the weathering of aquifer minerals being enhanced by carbonic and organic acids presumably from the landfill and sewage ponds. Moreover, two major contaminant plumes were identified as well as several smaller ones. Further research is needed to fully characterise the plumes in order to assess the landfill's full impact on the environment.

U2 - 10.2307/40980274

DO - 10.2307/40980274

M3 - Article

VL - 32

JO - Botswana Notes and Records

JF - Botswana Notes and Records

ER -