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Leaching characteristic of red gypsum under column and oedometric conditions

Red gypsum (RG) is a by-product produced during the extraction of titanium dioxide (TiO2) from ilmenite ores. Unregulated and rampant disposal activity of RG might be an issued due to waste gypsum arising from chemical industry or power plant annually without being utilize. The leachability of heavy...

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Main Author: Noor Hidayah, Mohd Hazari
Format: Undergraduates Project Papers
Language:English
Published: 2019
Subjects:
TD Environmental technology. Sanitary engineering
Online Access:http://umpir.ump.edu.my/id/eprint/28459/1/Leaching%20characteristic%20of%20red%20gypsum%20under%20column%20and%20oedometric.pdf
http://umpir.ump.edu.my/id/eprint/28459/
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spelling my.ump.umpir.284592020-06-16T01:52:55Z http://umpir.ump.edu.my/id/eprint/28459/ Leaching characteristic of red gypsum under column and oedometric conditions Noor Hidayah, Mohd Hazari TD Environmental technology. Sanitary engineering Red gypsum (RG) is a by-product produced during the extraction of titanium dioxide (TiO2) from ilmenite ores. Unregulated and rampant disposal activity of RG might be an issued due to waste gypsum arising from chemical industry or power plant annually without being utilize. The leachability of heavy metals of this waste will be leach into the soil groundwater. The main objective of this study is to determine the leaching characteristics of RG under Column and Oedometric conditions and comparing the concentration of elements with Toxicity Characteristic Leaching Procedure (TCLP), Total Threshold Limit Concentration (TTLC) and Drinking Water Quality Standards (NDWQS). The concentrations and types of heavy metals were analyzed using the Inductively Coupled Plasma Mass Spectrometry (ICP-MS) method. Experimental results demonstrated that only a few of the major elements that are traced from both leaching tests carried out by Column leaching test and Oedometer leaching test such as Mg, Ca, Na, Al and K. The highest concentration of major element is Mg (129.5 mg/L). In addition, some of heavy metals produced are Mn, Ni, Cu, Zn and Pb. The highest concentration of these five heavy metals is Zn (0.031 mg/L). However, the value of this concentration still does not exceed the limits provides in TTLC and NDWQS with the value of 5000 mg/L and 3 mg/L respectively. The results recorded element concentration under Column leaching test were higher than Oedometer leaching test. Overall, all element concentrations of RG were found to all relevant consideration standards of TCLP, TTLC and NDWQS as the elements that leach out were found to be less than allowable limits. 2019-01 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28459/1/Leaching%20characteristic%20of%20red%20gypsum%20under%20column%20and%20oedometric.pdf Noor Hidayah, Mohd Hazari (2019) Leaching characteristic of red gypsum under column and oedometric conditions. Faculty of Civil Engineering and Earth Resources, Universiti Malaysia Pahang.
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TD Environmental technology. Sanitary engineering
spellingShingle TD Environmental technology. Sanitary engineering
Noor Hidayah, Mohd Hazari
Leaching characteristic of red gypsum under column and oedometric conditions
description Red gypsum (RG) is a by-product produced during the extraction of titanium dioxide (TiO2) from ilmenite ores. Unregulated and rampant disposal activity of RG might be an issued due to waste gypsum arising from chemical industry or power plant annually without being utilize. The leachability of heavy metals of this waste will be leach into the soil groundwater. The main objective of this study is to determine the leaching characteristics of RG under Column and Oedometric conditions and comparing the concentration of elements with Toxicity Characteristic Leaching Procedure (TCLP), Total Threshold Limit Concentration (TTLC) and Drinking Water Quality Standards (NDWQS). The concentrations and types of heavy metals were analyzed using the Inductively Coupled Plasma Mass Spectrometry (ICP-MS) method. Experimental results demonstrated that only a few of the major elements that are traced from both leaching tests carried out by Column leaching test and Oedometer leaching test such as Mg, Ca, Na, Al and K. The highest concentration of major element is Mg (129.5 mg/L). In addition, some of heavy metals produced are Mn, Ni, Cu, Zn and Pb. The highest concentration of these five heavy metals is Zn (0.031 mg/L). However, the value of this concentration still does not exceed the limits provides in TTLC and NDWQS with the value of 5000 mg/L and 3 mg/L respectively. The results recorded element concentration under Column leaching test were higher than Oedometer leaching test. Overall, all element concentrations of RG were found to all relevant consideration standards of TCLP, TTLC and NDWQS as the elements that leach out were found to be less than allowable limits.
format Undergraduates Project Papers
author Noor Hidayah, Mohd Hazari
author_facet Noor Hidayah, Mohd Hazari
author_sort Noor Hidayah, Mohd Hazari
title Leaching characteristic of red gypsum under column and oedometric conditions
title_short Leaching characteristic of red gypsum under column and oedometric conditions
title_full Leaching characteristic of red gypsum under column and oedometric conditions
title_fullStr Leaching characteristic of red gypsum under column and oedometric conditions
title_full_unstemmed Leaching characteristic of red gypsum under column and oedometric conditions
title_sort leaching characteristic of red gypsum under column and oedometric conditions
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/28459/1/Leaching%20characteristic%20of%20red%20gypsum%20under%20column%20and%20oedometric.pdf
http://umpir.ump.edu.my/id/eprint/28459/
_version_ 1672610897639505920
score 13.211869

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