ABSTRACT Utilization of grain as a natural coagulant has been widely used. This is an alternative to the use of synthetic coagulants. Mung bean seeds can be used as a natural coagulant because they contain protein. This study aims to determine the effect of coagulant dosage and slow stirring time on the efficiency of turbidity removal and TDS in river water using natural coagulants from mung be…
ABSTRACT Peat water is surface water that’s found in swampy and lowland areas that contain high organic substances, are acidic and dark brown to blackish in color, which in quality do not meet the criteria for clean water quality. The high content of organic substances and color in peat water is difficult to be treated conventional coagulation-flocculation processes due to lack of turbidity,…
ABSTRACT In terms of quantity, peat water has the potential to become a source of clean water. However, in terms of quality, peat water is not acceptable for utilize because of the high content of organic matter and color. The high organic matter and color of peat water make it difficult to treat peat water with the usual coagulation-flocculation process, so kaolin was added in this research. …
ABSTRACT Sail River is one of the tributaries of the Saik River that crosses Bukit Raya District, Tenayan Raya District, Sail District and Lima Puluh District, Pekanbaru City. The Sail Watershed (DAS) is in a densely populated and activity-dense area. The Sail River also acts as the main drainage in Pekanbaru City, community activities around the Sail River such as residential areas, plantatio…
ABSTRACT Peat water has a high content of organic matter and color, so it is not suitable for direct use for clean water without processing it first. Processing that can be done is the coagulation-flocculation method using natural coagulants. The natural coagulant used is made from corn seeds (Zea mays L.). This study aims to analyze the ability of coagulant corn seeds (Zea mays L.) in the…
ABSTRACT Indonesia uses an average of 9.8 billion plastic bags annually, and 95% of the plastic bags used become waste. One of the methods to utilize plastic bag waste is as a material for paving block production. This research sought to explore the potential of High-Density Polyethylene plastic bag waste as material for paving block production. The paving block that will be made is a mixture …
ABSTRACT Domestic demand for calcium chloride continues to increase every year. Calcium chloride is a chemical substances needed by industries such as the pulp, cement and food preservative industries. Calcium carbonate can be processed into calcium chloride through the acidification process. The main raw materials used in the manufacture of calcium chloride by acidification process are calciu…
ABSTRACT Dimethyl phthalate is a type of plasticizer that is widely used for the manufacture of nitrocellulose and cellulose acetate rubber. Dimethyl phosphate as a plasticizer is also used as an additive to make plastic products. The need for imports of dimethyl phthalate in Indonesia has tended to increase in the last five years. Dimethyl phthalate production plants are still minimally e…
ABSTRACT Potassium phosphate (KH2PO4) is one of the inorganic fertilizers whose production locally is still small. This fertilizer consists of the main components of potassium and phosphate where these elements are macronutrients needed by plants. The need for imports of potassium phosphate in Indonesia has tended to increase in the last five years. Potassium phosphate production plants ar…
ABSTRACT Potassium phosphate (KH2PO4) is one of the inorganic fertilizers whose production locally is still small. This fertilizer consists of the main components of potassium and phosphate where these elements are macronutrients needed by plants. The need for imports of potassium phosphate in Indonesia has tended to increase in the last five years. Potassium phosphate production plants ar…
ABSTRACT One of the chemical industry which has important uses and has good prospects is the butanediol industry. Butanediol with the molecular formula C4H10O2 are hygroscopic liquid that is colorless and almost odorless. Butanediol (BDO) is an important element in a long production chain consisting of various intermediates and their derivatives, which are used in a wide range of industries an…
ABSTRACT Acetone (CH3COCH3) also known as 2-propanone or dimethyl ketone is a very important ketone derivative. This chemical is widely used as a solvent, because acetone is a good solvent for various gums, waxes, resins, fats, oils, dyes, and cellulose. Until now, no company has produced acetone in Indonesia either as a side product or as a main product. At this plant, acetone is made thr…
ABSTRACT Cellulose (C6H10O5)n is one of the long-chain polymers of polysaccharides prepared from saw-monomer β -glucose. Cellulose is the principal carbohydrate synthesized by plants dan occupies almost 60% of the components of plant structure. The purpose of this study is to extract cellulose from the pineapple wastes semi-mechanical and obtain cellulose powder by the methods of delignificat…
ABSTRACT Cadmium (Cd) is a heavy metal that is commonly found in aquatic environments and has a high level of toxicity. Adsorption is the adsorption process of a substance on the surface of another substance due to the molecular attraction that occurs between the adsorbate and the adsorbent. One of the adsorbents that can be used to remove Cd metal is POFA-based zeolite. This study aims to ana…
ABSTRACT Garbage is the residue of human daily activities or natural processes in solid form which is often encountered, especially dry leaf waste, to reduce this waste, dry leaf waste is used to manufacture solid organic fertilizer. Organic fertilizers are the result of the decomposition of parts or remains of plants and animals. The purpose of this research is to make organic solid fertilize…
ABSTRACT Garbage is the residue of human daily activities or natural processes in solid form which is often encountered, especially dry leaf waste, to reduce this waste, dry leaf waste is used to manufacture solid organic fertilizer. Organic fertilizers are the result of the decomposition of parts or remains of plants and animals. The purpose of this research is to make organic solid fertilize…
ABSTRACT Used cooking oil is frying oil that contains carcinogenic compounds such as free fatty acids, peroxides and others. To reduce the risk due to the impact of used cooking oil, a clarification process is carried out using noni fruit as an adsorbent. This study aims to determine the effect of noni weight and length of purification with cassava peel on the characteristics of the purified u…
ABSTRACT Solid organic fertilizer is the result of composting from the remaining agricultural and livestock waste, which contains macro and micro nutrients so that it can improve soil structure. This study aims to study the effect of composting time and EM4 concentration on the organic fertilizer produced and to analyze the N, P, K content of the solid organic fertilizer produced. Fertilizer i…
ABSTRACT Water is a basic need for life. River water is a source of raw water that needs to be processed so that the quality meets standards for use as sanitation or as drinking water. One alternative for water purification can be done using natural coagulants made from moringa seed powder. This study aims to study the effect of adding Moringa seed powder and the length of settling time in the…