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All Journal REACTOR : Journal of Research On Chemistry And Engineering SAINTI: Majalah Ilmiah Teknologi Industri
Merry Asria
Politeknik ATI Padang
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering

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Analisis Kandungan Logam Berat Cu dan Zn dalam Air Limbah Industri Merry Asria; Fadila Alhamid
REACTOR: Journal of Research on Chemistry and Engineering Vol 1, No 2 (2020): Published in December 2020
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v1i2.8

Abstract

Industrial wastewater is water from the processing of an industrial process. This type of water is classified as having poor quality because of the contaminants it contains. The contaminants contained in industrial water vary depending on the related processes that produced the water. This study aims to determine the concentrations of heavy metals Cu and Zn in industrial wastewater at three locations in Batam City. Wastewater testing was carried out using the ICP-AES. The results obtained indicate that the levels of Cu and Zn in the industrial wastewater samples at the three locations are still below the maximum concentration limit permitted by the Environmental Quality Standards and are in accordance with the Regulation of the Minister of Environment of the Republic of Indonesia No. 5 of 2014 Annex 47 About Wastewater Quality Standards.
ANALISIS KADAR UNSUR HARA MAKRO DAN MIKRO PADA DAUN KELAPA SAWIT DI DAERAH PERKEBUNAN KELAPA SAWIT RIAU Merry Asria; Ice Armaida Safitri
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 15, No 2 (2018): VOL 15 NO 2 DESEMBER 2018
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.731 KB)

Abstract

Nutrients are elements in the soil that are needed by plants to grow and develop. Macro nutrients are elements that are needed in large quantities, such as K, Mg and Ca. Micro nutrients are elements that are needed in small amounts, such as Fe and Cu. Nutrient content in palm oil leaves is used as one of the considerations in preparing fertilizer recommendations and knowing the fertility rate of oil palm plants. If nutrients are sufficient, it can increase the production of fresh fruit bunches in oil palm plants. Determination of K, Mg, Ca, Fe and Cu levels was carried out by the Atomic Absorption Spectrophotometry (AAS) method. From the research, the results of element K are deficient, the element Mg with nutrient content is 0.22 - 0.39%, the element Ca is 0.41 - 0.67%, the element Fe is 79 - 112 ppm, and the element Cu is 5 - 8 ppm.
PENGARUH REAKSI HIDROGENASI PADA REFINED KERNEL STEARIN (RKS) Merry Asria; Resi Wulandari
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 16, No 2 (2019): VOL 16 NO 2 DESEMBER 2019
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (330.897 KB)

Abstract

Hydrogenation reaction in oil is the process of eliminating double bonds in oil by reacting H2 gas with oil, so that unsaturated oil turns into more stable saturated oil. The hydrogenation process in Refined Kernel Stearin (RKS) will produce Hydrogenated Kernel Stearin (HKS). Tested the composition of fatty acids, iodine numbers, melting points and solid fat content in RKS and HKS to see the effect of the hydrogenation reaction on RKS. The results showed a reduced double bond, resulting in a decrease in iodine number and an increase in melting point.
Co-Authors Fadila Alhamid Ice Armaida Safitri Resi Wulandari