Abatement of Polluting Effects of Waste Dump Leachates using Different Coagulants

1
Oso, S
Oso, S
2
Oso
Oso
4
Taiwo
Taiwo
5
A.M
A.M
6
Bamgbose
Bamgbose
7
Olayinka
Olayinka
9
Terebo
Terebo
10
O. Soyingbe
O. Soyingbe
11
A.A.
A.A.
1 Federal University of Agriculture

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This study assessed the effectiveness of different coagulants for treating leachates before their release into the environment. Three inorganic coagulants (ferric chloride, ferrous sulphate and alum) and one organic coagulant [Moringer Oleifera seed (MOS)] were used in a jar test to determine the optimum pH and dosage for the coagulants. Raw and treated leachates were analysed for physiochemical parameters such as pH, chemical oxygen demand, Total solids, Pb and Cr. The optimum pH for ferric chloride, ferrous sulphate, alum and MOS was 7, 7,6 and 10 respectively. While the optimum dosage for each coagulant was 3g/L, 3g/L, 5g/L and 5g/L respectively. The analysis of the raw leachate sample showed that it was highly polluted (Dry season: COD -3000mg/L, TSS -2369mg/L, Cr -0.075mg/L, Pb -0.25mg/L and Mn -0.29mg/L; Wet season: COD -3000mg/L, TSS -2369mg/L, Cr -0.075mg/L, Pb -0.25mg/L and Mn -0.29mg/L). Coagulants removal efficiency (RE) for COD ranges from 12% to 41% with ferric chloride having the highest removal efficiency.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

Oso, S. 2026. \u201cAbatement of Polluting Effects of Waste Dump Leachates using Different Coagulants\u201d. Global Journal of Human-Social Science - B: Geography, Environmental Science & Disaster Management GJHSS-B Volume 22 (GJHSS Volume 22 Issue B3): .

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Alt: Image showing groundwater pollution effects from waste dump leaks affecting soil quality.
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GJHSS Volume 22 Issue B3
Pg. 55- 65
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Crossref Journal DOI 10.17406/GJHSS

Print ISSN 0975-587X

e-ISSN 2249-460X

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GJHSS-B Classification: DDC Code: 616.157 LCC Code: RC647.C55
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September 13, 2022

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This study assessed the effectiveness of different coagulants for treating leachates before their release into the environment. Three inorganic coagulants (ferric chloride, ferrous sulphate and alum) and one organic coagulant [Moringer Oleifera seed (MOS)] were used in a jar test to determine the optimum pH and dosage for the coagulants. Raw and treated leachates were analysed for physiochemical parameters such as pH, chemical oxygen demand, Total solids, Pb and Cr. The optimum pH for ferric chloride, ferrous sulphate, alum and MOS was 7, 7,6 and 10 respectively. While the optimum dosage for each coagulant was 3g/L, 3g/L, 5g/L and 5g/L respectively. The analysis of the raw leachate sample showed that it was highly polluted (Dry season: COD -3000mg/L, TSS -2369mg/L, Cr -0.075mg/L, Pb -0.25mg/L and Mn -0.29mg/L; Wet season: COD -3000mg/L, TSS -2369mg/L, Cr -0.075mg/L, Pb -0.25mg/L and Mn -0.29mg/L). Coagulants removal efficiency (RE) for COD ranges from 12% to 41% with ferric chloride having the highest removal efficiency.

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Abatement of Polluting Effects of Waste Dump Leachates using Different Coagulants

Oso
Oso
S
S
Taiwo
Taiwo
A.M
A.M
Bamgbose
Bamgbose
Olayinka
Olayinka
O
O
Olayinka
Olayinka
O
O
Terebo
Terebo
O. Soyingbe
O. Soyingbe
A.A.
A.A.

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