Natural rubber is a polymeric material composed of hydrocarbon chains possessing high flexibility and green strength making them suitable for various applications including automotives tires, construction materials, and as floor protective materials etc. Special properties of rubber are obtained from compounding with various ingredients one of which is inorganic fillers including carbon black, silica, and clay minerals. The concept of processing
Acidminedrainage(AMD)isamajorenvironmentaldistributedpollutantduetotheexposureofairandwaterfrom tailing and overburden produced from metals mining activity. AMD might degrade water to strong acidity, sulfide, iron (Fe), and other heavy metals contents due to the chemical consumption during the mineral extraction process. Thus, this study aimed to investigate the effectiveness of neutralization acid mine drainage caused by artisanal and small-scal
Lithofacies and petrological studies of sandstones from outcrops at the Kulen area were carried out to understand the diagenetic processes, depositional process, and mineral composition of sandstones. Measurement of stratigraphic section and sandstone samples were conducted at three zones of Kulen area, Phnom Takhok (TK), Peah Ang Chub (PAC), and Phnom Mrech (PM) for this study. The sedimentological study provides the information of large -and sm
The aim of this study is to investigate the organic petrology of shale in Phnom Mreach, Angkor Chum District, Siem Reap province, onshore Cambodia. Thin-section is carried out to analyze mineral compositions, sedimentary texture, and shale classification. Polish-section is used to identify the types of organic matter under reflected light. Scanning electron microscope (SEM) is analyzed for further detailed study on types and morphology of organic
The presence of high arsenic content in groundwaters in Kandal, Cambodia has threatened about 1 million people and several people have already been exposed to arsenic. This study aims to investigate the removal of arsenic from Kandal groundwater by utilizing naturally available laterite from Kampong Cham in order to obtain safe drinking water for the people. The laterites were characterized with XRD, XRF, zeta potential analyzer, and surface area
Concentration of arsenic in groundwater was investigated at three villages (Chong Prek, Prek Tameng and Prek Thom) in the Kandal Province of Cambodia, which ranged from 80.9 μg/L (in Prek Tameng village) to 1420 μg/L (in Prek Thom village), with average and median concentrations of 463.16 and 217 μg/L, respectively. Iron concentration was also determined. Nearly all the twenty-five samples contained arsenic and iron concentrations exceeding the W
Due to human activities such as batik home industries, abattoirs, and tanneries, the existence of heavy metals in dug-well water has been known as the cause of groundwater pollution in Yogyakarta City. To treat this dug-well water, a batch adsorption experiment by utilizing the activated zeolite and bentonite was carried out. Prior to the treatment, the zeolite and bentonite were characterized by means of XRD, SEM, XRF, and various ICP and modifi
The Sidomulyo zeolitic and Kedungbedah bentonitic tuffs are respectively located in the Gunungkidul and the Boyolali regencies, Indonesia. The study of their mineralogical characteristics was primarily done. The petrographical analysis indicates that the Sidomulyo zeolitic or Kedungbedah bentonitic tuffs is composed of volcanic glass, quartz, plagioclase, and altered minerals. The XRD investigation reveals that the zeolite tuff contains clinoptil
Groundwater quality in Yogyakarta city has become the major concern due to the presence of heavy metals originated from batik home industries, slaughterhouses, and leather factories, especially in shallow groundwater. In response to the above problems, the naturally abundant zeolite and bentonite in Sidomulyo and Bandung areas were respectively sampled along with the metal-containing groundwater in Yogyakarta urban area for batch adsorption exper
Situated in Kandal province of Cambodia with lower Bassac river as a border with Vietnam, a village of Koh Thom district called Prek Chrey Khnong with a population of several hundred families faces lack of drinking water sources especially during dry season due to the existence of elevated arsenic level (3–53 times higher than CDWQS) in pipe well water and the presence of bacteria in surface water. To solve this problem, a sustainable arsenic rem