K 0-INAA measurement of levels of toxic elements in oil sludge and their leachability

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4 Citations (Scopus)

Abstract

Development of the petroleum industry has resulted in increasing production of oil sludge, the disposal of which risks introducing hazardous elements into the environment. In the frames of these studies the presence of the toxic metals arsenic, chromium and zinc in oil sludge and the leachability of those toxins. Samples were obtained from a refinery plant in Sg Udang, Melaka and from the Miri Crude Oil Terminal, Sarawak, both in Malaysia. k 0-Instrumental Neutron Activation Analysis was used to measure mass fractions of elements. The samples were packed and irradiated in a TRIGA Mark II reactor. Mass fraction of arsenic in the oil sludge samples were found to be higher than the EPA pollutant mass fraction limit; mass fractions of chromium and zinc were below of this limit. Samples were also tested for leachability, which was found to be contributed to by controlled diffusion. Slow leachability of arsenic was found to be higher than the EPA limit in these oil sludge samples, influenced by such factors as redox condition. It was found however, that the most leachable of these elements in all samples from both sites was zinc, followed by arsenic and chromium, indicating that zinc may present a more serious threat of environmental contamination than the other two.

Original languageEnglish
Pages (from-to)41-47
Number of pages7
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume287
Issue number1
DOIs
Publication statusPublished - Jan 2011

Fingerprint

Poisons
Arsenic
Sewage
Zinc
Oils
Chromium
Malaysia
Oil terminals
Neutron Activation Analysis
Neutron activation analysis
Petroleum industry
Petroleum
Oxidation-Reduction
Contamination
Crude oil
Metals

Keywords

  • Arsenic
  • Chromium
  • k -INAA
  • Oil sludge
  • Zinc

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Pollution
  • Health, Toxicology and Mutagenesis
  • Nuclear Energy and Engineering
  • Analytical Chemistry

Cite this

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title = "K 0-INAA measurement of levels of toxic elements in oil sludge and their leachability",
abstract = "Development of the petroleum industry has resulted in increasing production of oil sludge, the disposal of which risks introducing hazardous elements into the environment. In the frames of these studies the presence of the toxic metals arsenic, chromium and zinc in oil sludge and the leachability of those toxins. Samples were obtained from a refinery plant in Sg Udang, Melaka and from the Miri Crude Oil Terminal, Sarawak, both in Malaysia. k 0-Instrumental Neutron Activation Analysis was used to measure mass fractions of elements. The samples were packed and irradiated in a TRIGA Mark II reactor. Mass fraction of arsenic in the oil sludge samples were found to be higher than the EPA pollutant mass fraction limit; mass fractions of chromium and zinc were below of this limit. Samples were also tested for leachability, which was found to be contributed to by controlled diffusion. Slow leachability of arsenic was found to be higher than the EPA limit in these oil sludge samples, influenced by such factors as redox condition. It was found however, that the most leachable of these elements in all samples from both sites was zinc, followed by arsenic and chromium, indicating that zinc may present a more serious threat of environmental contamination than the other two.",
keywords = "Arsenic, Chromium, k -INAA, Oil sludge, Zinc",
author = "{Mohd Fadzil}, Syazwani and Sukiman Sarmani and {Ab. Majid}, Amran and {Kok Siong}, {Khoo Kok Siong} and Ainon Hamzah",
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AU - Mohd Fadzil, Syazwani

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AU - Kok Siong, Khoo Kok Siong

AU - Hamzah, Ainon

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