ABSTRACT Extraction is a process of separating a substance based on differences in its solubility in two different insoluble liquids, usually water and the other as an organic solvent. In this study, the basic ingredients used in the extraction process are areca nuts. The extraction process used is soxhletation extraction, which is the process of separating a component contained in a solid…
ABSTRACT Gas Oil 50 ppm is a new product issued by PT. Pertamina RU II Dumai which has a maximum sulphur figure of 50 ppm. This product is a byproduct of regular Diesel fuel but is superior in quality and low in sulphur figures obtained in this product. Gas Oil 50 ppm is made with several types of products, namely Light Gas Oil (LGO), Diesel, and Heavy Kerosene using the Blending method. T…
ABSTRACT Eucalyptus oil is one of the essential oils obtained from the extraction of eucalyptus leaves. The purpose of this study is to evaluate the effect of variations in sample and treatment Extraction time on the yield of eucalyptus essential oil and determine the characteristics of eucalyptus essential oil produced by themethod hydro distillation. Variations of sample treatment carrie…
ABSTRACT Pollution in water bodies at certain concentrations can change the function of being a source of poison for waters life. One of the substances contained in water is Fe2+. Irons (Fe2+) is one of the ions which causes pollution if the excess content is in water. Adsorption is a method can used for decreas consentration of metals ion in contaminated solution. Chicken egg shells conta…
ABSTRACT Polluting metals found in peatwater are usually free elements attached to soil and rocks that are then carried away by water or waste from an industry. For example, metal such as Fe,fe content that is too much in the water will have a bad impact on human health. One possible technique for setting aside the content of heavy metals is adsorption. Adsorption is an adorption of an ads…
ABSTRACT Pollution in water bodies at certain concentrations can change the function of being a source of poison for waters life. One of the substances contained in water is Fe2+. Irons (Fe2+) is one of the ions which causes pollution if the excess content is in water. Adsorption is a method can used for decreas consentration of metals ion in contaminated solution. Chicken egg shells conta…
ABSTRACT Polluting metals found in peatwater are usually free elements attached to soil and rocks that are then carried away by water or waste from an industry. For example, metal such as Fe,fe content that is too much in the water will have a bad impact on human health. One possible technique for setting aside the content of heavy metals is adsorption. Adsorption is an adorption of an ads…
ABSTRACT Heavy metals can be bad for the environment and health. Lead (Pb) is a very dangerous heavy metal with carcinogenic properties, which can cause health effects because it has toxic properties so that it blocks the work of enzymes in the body which can cause the body's metabolism to be cut off. Adsorption is a method that can be used to reduce the ion concentration in a polluted sol…
ABSTRACT Heavy metals can be bad for the environment and health. Lead (Pb) is a very dangerous heavy metal with carcinogenic properties, which can cause health effects because it has toxic properties so that it blocks the work of enzymes in the body which can cause the body's metabolism to be cut off. Adsorption is a method that can be used to reduce the ion concentration in a polluted sol…
Siak Regency prossess promising natural clay, for it hasn’t widely used. Maredan’s natural clay, which contains quite high amount of silica and alumina, could be used as the main ingredients of zeolite, minerals with high applicabality. Natural mineral materials have been used to synthesis zeolite. For instance, Maredan’s natural clay (Siak Regency, Riau Province). This research was aimed…
ABSTRACT Tofu liquid waste contains organic compounds which are generally high. One of the treatments to reduce pollutant level in tofu liquid waste is coagulation and flocculation. The aim of this study was to study the effect of variations dosage of Aloe vera and the speed of stirring on the removal of tofu liquid waste by coagulation and flocculation using the Aloe vera as biocoagulant.…
ABSTRACT The needs for industrial wastewater treatment for heavy metal have been a concern. Adsorption using hydroxyapatite (HAp) as adsorbent is one of the choice to remove heavy metal content economically and efficiently. The objective of this research is to study the effect of temperature and weight of adsorbent in adsorption as well as determine adsorption equilibrium model in the lead…
ABSTRACT The Kraft pulping process has become the most widely used pulping process in the papermaking industry since its discovery in 1879.This process has three main advantages over other pulping processes, namely the resulting fiber is stronger, can be applied to all wood species. Both softwood and hardwood, and lower operating costs due to the chemical can be reprocessed at a high effic…
ABSTRACT The forest product processing industry, one of which is the pulp and paper industry. The pulp and paper industry is a contributor of liquid waste which is quite dangerous for the environment. Increased production in the industry is followed by the presence of wastewater with high levels of pollutants. Wastewater in the pulp and paper industry is mainly generated from the process o…
ABSTRACT Bio-charcoal briquettes are one of the ingredients of fuel that derived from biomass. Biomass is one of the sources of energy that can be replaces. One of biomass that is used in this research is coffee skin and peanut skin. The research is aimed to utilize waste biomass as material fuel alternatives and determine the best comparison of coffee skin and peanut skin. This research i…
ABSTRACT The pulp and paper industry is a water-intensive industry, and number third in the world and also a significant contributor to pollutant discharge to the environment. It is know that the low BOD/COD ratio obtained from pulp industry wastewater is an average of 0.3 (1/3) while the ideal of biodegradability value is in the range above 0.5 (1/2). Thus, there are alternative treatment…
ABSTRACT Corrosion is defined as the result of damage from a chemical reaction between a metal and its environment. The use of inhibitors is one way to inhibit the corrosion rate. Bay leaf extract is an organic material that can be used as an inhibitor. The purpose of this study was to determine the effect of adding bay leaf extract on the corrosion rate of ASTM A36 carbon steel in 0.5 M HC…
ABSTRACT Adsorption is a process in which solute liquids accumulate on the adsorbent surface and form a thin layer of atoms or molecules. The adsorbent used was shrimp shell powder.Utilization of the adsorption process in the absorption of Cu metal is useful for determining the isotherm model and adsorption kinetics. In this study the adsorption process was carried out by varying the conce…
ABSTRACK Indonesia is one of the largest paper producing and exporting countries in the world. Along with the increase in paper production, solid waste is generated from the reject of stock preparation. These reject of stock preparation has the potential to produce bioethanol because it contains a high cellulose content of 85,53% and hemicellulose 3,88%which is able to support the provisio…
ABSTRACT Most of the shrimp shell waste consists of chitin compounds which can be converted into chitosan. The use of chitin and chitosan are mainly as chelating agents, emulsifiers and adsorbents. In this study, shrimp shell waste was used directly as an adsorbent on Cu metal, without changing the shrimp shells to chitin or chitosan. Shrimp shell waste at the initial stage was treated inc…