35 results.
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Tri Kurnia Dewi
Research has been conducted to convert waste lubrication oil into fuel oil. This work is the second part of a bigger work entittled “Conversion of Waste Oil into Fuel Oil”. The first part dealing with...
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Siti Sailah
One of the factors that generate acid mine drainage (AMD) is the presence of sulphide minerals in rocks because sulphide minerals will have oxidation with oxigen and water to generate AMD. Learning su...
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Fahma Riyanti
In this study, magnetite-chitin composite has been synthesized and their apllication for removal Ni(II) from aqueous solution. Chitin synthesized from shrimp shell waste. Magnetite-chitin composite we...
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Muhammad Faizal
As we know that, urea fertilizer Industry is one of important industries for supporting food consumption. But, in manufacturing process, this industry produces a wastewater containing ammonia. Before ...
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Erwana Dewi
Asphalt is the important component in the making of infrastructure and rehabilitation of road in particular on the surface layer. The use of asphalt as a road surface coating materials is increasingly...
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Muhammad Hatta Dahlan
High quantity of vehicle use have been triggered to increase the use of oil and caused the increase of used oil in environment. Used oil might contained the metallic elements such as aluminum (Al), ir...
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Gustini Lukman
Hot isostatic pressing is one of the method applied in powder technology to produce high density material. This research aims to investigate physical and mechanical properties of aluminium-fly ash com...
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Falentina Fransiska
Biodiesel is produced from transesterification process with vegetable oil or animal fats and methanol as reactans. However insolubility of methanol in oil resulted in long reaction time. To improve th...
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Wendi Wendi
Biodiesel is an alternative fuel for diesel engines consisting of the alkyl monoesters from vegetable oils or animal fats. Beef tallow is the non-edible raw material with low cost production and the a...
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Felicia Felicia
Biodiesel can be produced from either vegetable oil or animal fats through transesterfication process. Problem that usually appears in transesterification process is long reaction time because oil and...
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Abdul Razak Ismail
The significant of exploring deep wells is increasing rapidly to fulfill the global oil and gas demand. Deepwater drilling in offshore operations found negative impact on the drilling fluids rheologic...
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Valentinoh Cuaca
Biodiesel is defined as renewable fuel for diesel engines, derived from vegetable oil or animal fats. Beef tallow is one residual material from slaughterhouses which main destination is the soap indus...
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Renita Manurung
Enzymatic biodiesel production process was done by using palm oil as CPO (Crude Palm Oil) as the main raw material in which the first step was screened the enzym that will be used at the next process....
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Tania Surya Utami
Demand for electricity has become a crucial requirement of Indonesian society. Resources, which generate electrical energy such as fossil fuel, is predicted to run out within the next dozen years. Mic...
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Rangga Septian
Biodiesel is one of the alternative fuels. Biodiesel can be made from palm oil and the other raw materials. This research studies the optimum condition of palm oil (RPO) production by methanolysis rea...
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Fitri Hadiah
Crude fatty oils contain a large number of impurities, including gum, free fatty acids, and coloring substances that must be removed in order to create an acceptables refined oil. This paper describes...
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Fitri Hadiah
Polyunsaturated fatty acids are the main cause of the poor thermal and oxidative stabilities of fatty oils as well as biodiesels. The conversion of polyunsaturated to monounsaturated fatty acid moieti...
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Syaifullah Muhammad
Nano size particles such as nanocrystalline zeolites have unique properties relative to conventional micrometer sized zeolite crystals. The reduction of particle size to the nanometer scale leads to s...
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Leily Nurul Komariah
A various tests of biodiesel use in any combustion facility were conducted in order to comply the government mandatory regarding stages of biodiesel utilization, especially in industrial and commercia...
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Sri Haryati
Hydrogen is viewed as one of the most potential energy source in the future. One of methods to produce hydrogen is by electrolysis of water. Variables that was applied in this work were electrical cur...
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Dijan Supramono
Biodiesel may be produced by trans-esterification reaction of vegetable oil, which transforms triglycerides into alkyl esters as biodiesel and glycerol as a byproduct, in the presence of an alcohol re...
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Bambang Heru Susanto
Biofuels have great potential to fulfill the energy needs of Indonesia. The process used is hydrodeoxygenation reaction (HDO) whose products are known as renewable diesel. This study focuses on prepar...
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Abdul Razak Ismail
The oil and gas industries need to use oil based drilling fluids to drill troublesome rock layers such as sensitive shale formation or to drill very deep oil and gas wells. However, using oil based dr...
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Muhammad Said
A research about hydrocracking of Crude Palm Oil (CPO) has been conducted using the catalyst Cr/active natural zeolite. Hydrocracking of CPO was conducted at the temperature variations of 300 oC, 400 ...
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Dewi Anggraini
One of the most valuable products in chemical industry is 1,3-Propanediol (1,3-PD) because it has numerous applications for the production of polymers, cosmetics, foods, medicines, and lubricants. 1,3...
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Aida Syarif
Acid mine drainage (AMD is a term generally used to describe infiltration of acid surface water in the mining areas. The study of the processs for formation acidmine drainage can be approached by two ...
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Eko Ariyanto
Activated carbon prepared from rubber (Havea Brasiliensis) seeds was used to remove methylene blue and methyl red from aqueous solutions. Adsorption studies were conducted to evaluate the effect of co...
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Neny Rochyani
The experimental results obtained in laboratory conditions where the pH optimum was 7.3 at the best ratio of lime dose of 0.8 g / l to 50 minutes operating time. With the optimum conditions, subsequen...
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Tuty Emilia Agustina
The number of laundry industry has been increasing rapidly which influences the amount of detergent USAge in the washing process. Generally the laundry industries dump their wastewater directly to env...
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Abdullah Saleh
Biogas is the one of renewable energies that is the result of fermentation of methanogenic bacteria of biomass or organic substance . The low methane content in biogas is affected by the amount of imp...
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Didiek Hari Nugroho
Jet bubble column is one of the methods that can be applied to reduce levels of ammonia solutions from a fertilizer industry wastewater. This study intends to evaluate the entrainment of gas volumetri...
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Muhammad Yerizam
Biobriquette can be used to anticipate the high fossil fuel needed as alternative fuel, cheap and easily obtained. Biobriquette is solid fuel and derived from organic residues. Generally, coal biobriq...
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Ahmad Romsan
The integration of environmental rights into human rights in Indonesian Environmental Management Acts (EMAs) has taken 37 years after the 1972 Stockholm Declaration on Human Environment and 27 years a...
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Jekky Bahagia
One of the oldest products of glycerol fermentation is 1,3-Propanediol. As a glycol, 1,3-propanediol can principally be utilized as a monomer for the synthesis of polyesters and polyurethanes. In this...
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Rusdianasari Bow
The location of mining is away from the coastline, so the coal stockpiles is needed. Stockpile serves as a temporary dump before the coal is transported through waterways to be marketed locally or abr...