Radiological impact assessment of radioactive minerals of amang …
A radiological impact assessment (RIA) onto environment from radioactive minerals of amang and ilmenite was carried out in an amang processing plant at Dengkil, Selangor, Malaysia.
Review of occupational exposure and radioactivity …
Continuous depletion in tin productions has led to a newly emerging industry that is a tin by-product (amang) processing industry to harness mega tons of tin by-products produced in the past.
GAMMA HAZARDS AND RISK ASSOCIATED WITH NORM IN SEDIMENT FROM AMANG
Workers in the industry are the most affected group of radiation exposures. Few conducted investigations by Hu and Koo (1983), Hu and Kandaiya (1985a), Choong and Hong (1985), AELB, 1991;Bahari et ...
Radiological hazard associated with amang processing …
Measurements of total airborne alpha activity, equilibrium equivalent concentration (EEC) of 222 Rn and 220 Rn progenies in amang processing plants in Malaysia.
A New Water Quality Index for Environmental Contamination Contributed
Thirty three water samples were taken from seven amang (tin tailing) processing plants located in the state of Selangor and Perak, Malaysia. The amang plants comprise of three employing the open and close (natural and man made) management systems.
Radiation dose assessment at amang processing plants in Malaysia …
Measurements of external radiation level, radon/thoron daughters concentrations in air and uranium/thorium concentrations in airborne mineral dust at 16 amang plants in Malaysia were carried out for three consecutive months to assess radiation dose to workers. Estimated occupational dose was within the range of 1.710.9 mSv y1. The mean total dose at …
Radiation dose assessment at amang processing plants in …
The amang plants studied were of different processing capacities. Radiation dose assessments from external and internal (radon/thoron daughters and radionuclides in airborne …
Radiological hazard associated with amang processing …
With poorly established safety and health practices in operating plant, amang poses extremely high radioactivity problem associated with high occupational ionizing …
About KILANG AMANG ONN SDN BHD ONN MINERAL COMPANY [OMC], KAMPAR, MALAYSIA
KILANG AMANG ONN SDN BHD ONN MINERAL COMPANY [OMC], Kampar, Malaysia is an established mineral processing industry in existence for four [04] decades, licensed for purchasing, smelting or treating the mineral ores like Garnet, Tin, Rutile, Zircon, Ilmenite, etc., ... was a pioneer in setting up the first mineral separation plant in private ...
Radiological hazard associated with amang processing …
Continuous depletion in tin productions has led to a newly emerging industry that is a tin by-product (amang) processing industry to harness mega tons of tin by-products produced in the …
Radiological impact assessment of radioactive minerals of amang …
An amang (tin tailing) processing plant located in Dengkil, Selangor, Malaysia has been in operation for more than 16 years. This plant, with an area of 40,000 m 2, consists of a processing plant building, open area used to heap unprocessed and semi-processed amang and a large pond providing water for use in the amang processing.Amang is process for its …
Occupational radiation exposure due to norm in a rare-earth …
External gamma exposure rates and airborne thorium levels in plants processing such minerals are studied. ... in airborne mineral dust at 16 amang plants in Malaysia were carried out for three ...
Radiological Impact Assessment of Natural …
for tin tailings processing in Peninsular Malaysia. Seven amang processing plants in Perak were selected as the study area, as depicted in Figure 1. These plants were chosen based on their processing productivity, with some plants like PP5 and PP7 having ceased processing activity but still storing tin tailings when required. The
Radioactivity and radiological risk associated with effluent …
A study was carried out to assess the radiological risk associated with amang processing and the accumulated effluent in the recycling ponds. Twenty-six sediment samples from the recycling ponds of two amang plants in the states of Selangor and Perak, Malaysia, were collected and analyzed.
(PDF) Radiological monitoring: terrestrial …
Sample locations were distant from any 'amang' processing plants. The external gamma dose rates ranged from 39 to 1039 nGy h 1. The mean external gamma dose rate was 222 191 nGy h 1. Small areas of relatively enhanced …
Radiological Environmental Risk Associated with Different …
Three types of water management systems are used by amang plants, i.e. Open Water System (OWS), Close Water System Man-made (CWS mm) and Close Water System Natural (CWSn). A study was carried out to determine the radiological environmental risk associated with these different water management systems in amang processing in Malaysia. The ...
Assessment of natural radioactivity in water and sediment from amang
The end product of tin tailing processing, specifically heavy minerals, has paved the way for waste utilization contributed by the tin mining and extraction industry in Malaysia.
Processing Plant – Charoen Pokphand Malaysia
CP Malaysia, shrimp processing plant in Port Klang started operations in mid-year 2004. We are an HACCP certified shrimp processing plant and currently our main export market is to the USA, E.U. and Japan. Our processing plant covers a total production area of 2,100 m2 comprising the conventional (raw) products and cooked products section.
Radiological hazard associated with amang processing …
Continuous depletion in tin productions has led to a newly emerging industry that is a tin by-product (amang) processing industry to harness mega tons of tin by-products produced in the past.
Determination of the elemental concentration of uranium …
Besides that, the tailings from these ores may have a significant potential source of radiation exposure to amang plants' workers. This study was conducted to determine the elemental concentration of uranium and thorium in mineral samples collected from five amang tailing factories. ... Rare earth processing in Malaysia: Case study of are and ...
Exploring Strategies Post- Revocation of Licensing …
(Meneroka Strategi Selepas Pembatalan Pengecualian Pelesenan untuk Industri Pemprosesan Amang Malaysia) MUHAMMAD ABDULLAH RAHMAT1, AZNAN FAZLI ISMAIL1,2,*, ... material accumulated over the years of active processing, Malaysia began to divert attention to the reprocessing ... of the sample collected from each processing plant are stated in Table 1.
Chemical and Mineralogical Characterization of Malaysian Monazite
A major portion of monazite was produced with xenotime as by-products of tin mine processing (Amang plant) in Malaysia [23, 24]. With an estimated reserve of 30,000 tons of rare earth mineral reserves, Malaysian monazite is composed of 6.5–7.5% of ThO 2 and 55.5–75.5% of REOs [26, 27].
Radiation shielding of ultra-high-performance concrete with silica sand
The fine aggregates used were amang (Minerals and Geoscience Department Malaysia), silica sand (Dura Technology Sdn. Bhd) and lead glass (Nippon Glass (M) Berhad). ... [51], amang-processing plants seem to show radiological effect to their workers and the environment surrounding them. Although A-UHPC has the best radiation absorption rate, it ...
Malaysia gives nod for Australian miner Lynas to …
Malaysia's Minister of Science, Technology and Innovation Chang Lin Kang speaks during a press conference in Kuala Lumpur, Malaysia, Tuesday, Oct. 24, 2023. Australian miner Lynas Rare Earth has won a reprieve until …
Radiological impacts of the amang processing industry on …
In Malaysia, the amang industry is composed of both small and relatively large-scale plants. ... Amang processing plants have been shown to have radiological impact to its workers and the immediate environment. It is less clear whether there is radiological impact to nearby houses. The study showed that inhalation of radon and its daughters is ...
Gross alpha and gross beta activity in the products and by …
Gross alpha and gross beta activities were determined for mineral samples collected from five amang tailing factories. The measured activity of alpha ranged from 31 to 220,000 Bq kg−1 with an ...
Radiological Environmental Risk Associated with Different …
Currently amang processing plants in Malaysia employ three systems of water management in the wet gravity separation process. These systems may be classified as open water system, recycle water system (natural) and recycle water system (man-made). In the open water system, water is drawn from nearby river or stream, used in wet gravity ...
Radiological impacts of the amang processing industry on …
In Malaysia, the amang industry is composed of both small and relatively large-scale plants. The industry employs about 1000 workers, with 50% of the 60 plants employing …
Radiological hazard associated with amang processing …
Radiological hazard associated with amang processing industry in Peninsular Malaysia and its environmental impacts. M. S.M. Sanusi *, A. T ... With poorly established safety and health practices in operating plant, amang poses extremely high radioactivity problem associated with high occupational ionizing radiation exposures to workers and ...
Muhamad YASIR | Universiti Kebangsaan Malaysia | ukm
Three sampling locations were selected for this study i.e the amang effluent discharge point (P1), amang processing pond (P2) and Sg. Kampar (P3) which is located beside the amang processing pond ...