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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Dinamika Penelitian Industri Biopropal Industri
Marihati Marihati, Marihati
Kementerian Perindustrian
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Industrial & Manufacturing Engineering

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Purification and In situ Iodisation of Blotong Solid Waste into Consumption Salt in Iodized-Salt Industry Nilawati, Nilawati; Marihati, Marihati
Biopropal Industri Vol 6, No 2 (2015)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

The solid waste of iodized-salt industry are sapon (50-100 kilograms) and blotong (1-2 tons) per 10 tons per day. The objective of this research was for recycling blotong through purification, recrystallization and in situ iodisation to increase NaCl content and homogeneous KIO3. This research used two variables which were KIO3 concentration within 30,40, 50 & 60 ppm, and brine water of blotong that had soluted into 240Be (consist of salt water which purified with Na2CO3, NaOH and unpurified salt water). The composition of blotong were 12.318% water content, 46.409% Cl-, 82.685% pure NaCl, 0.784% Mg2+, 1.420% Ca2+ and 2.747% SO4.After purification and recrystallization, impurities was decreased, Mg2+ became 0.278% (64.54% reduction) and Ca2+ became 0.153% (89.23% reduction). NaCl content was increasing into 96.481% and fulfilled the NaCl standard of salt consumption based on SNI 3556-2010 (94.7%).
The Effect of Gradually Stirring On Halophilic Bacteria Growth with Artemia salina Nutrition for Salt Production Nilawati, Nilawati; Muryati, Muryati; Marihati, Marihati
Biopropal Industri Vol 5, No 1 (2014)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Halophilic bacteria are microorganisms whose habitat is at high salt content. Halophilic bacteria in the presence of salt crystallization can increase the purity of NaCl. Nutrients that contain carbon and oxygen must be available for the survival of bacteria, where Artemia salina contains 52% protein and 15.49% carbohydrate. The purpose of this study was to determine the development of the growth of halophilic bacteria using nutrient Artemia salina for salt production. Three variables were used in this reserach: the first variables includes aeration and stirrer, the second variable was stirring time (½, 1, 2, 3, 4, 5 and 6 hours) and the third variable was mixing period, there were consisted of 1st, 2nd, 3rd, 4th, 5th, 6th and 7th day. The best treatment for transmitance and microbial analysis were 6 hours and seven days of aeration, each point was 33% transmitance and 2,25 x 103 colony forming unit per mililiter for microbilogy analysis.
PEMISAHAN NaCl DARI LIMBAH PADAT IKM GARAM BERYODIUM UNTUK INDUSTRI PENYAMAKAAN KULIT DAN PENGOLAHAN AIR INDUSTRI Nilawati, Nilawati; Marihati, Marihati; Muyati, Muryati
Jurnal Dinamika Penelitian Industri Vol 27, No 2 (2016): JURNAL DINAMIKA PENELITIAN INDUSTRI
Publisher : Balai Riset dan Standardisasi Industri Palembang

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Penelitian ini bertujuan untuk memanfaatkan sludge kotor menjadi garam untuk industri penyamakan kulit dan pengolahan air industri dengan spesifikasi NaCl minimum 85%. Variabel yang digunakan yaitu variabel pertama adalah formulasi sludge, terdiri dari perbandingan sludge bersih dan sludge kotor yaitu 50%: 50%dan 0:100%). Variabel kedua adalah jumlah penambahan Na2CO3dalam proses pemurnian larutan garam terdiri dari 0, 3 ,4 dan 5 g/l larutan garam 240Be. Penambahan Na2CO3sebanyak 4 g/l larutan garam merupakan hasil yang terbaik dengan nilai prosentase penurunan Ca2+ minimum 91,67% dan zat pengotor Mg++mengalami penurunan minimum 14%. Pemisahan NaCl dari sludge melalui proses pelarutan dan pemurnian menaikkan NaCl formula 50%:50% dari 66,75% menjadi 95,77%, sedangkan NaCl dari formula 0:100% dari 48,5% menjadi 91,87%. Rendemen garam untuk formula 50% : 50% dan 0: 100% masing-masing 79,7% dan 77,4%.
Sel Elektrolisis 3–Kompartemen untuk Ekstraksi Magnesium dan Sulfat dari Sistem Larutan MgSO4–KCl–H2O Rahmanto, Wasino Hadi; Asy’ari, Mukhammad; Rame, Rame; Marihati, Marihati
Jurnal Kimia Sains dan Aplikasi Vol 9, No 1 (2006): Volume 9 Issue 1 Year 2006
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (497.724 KB) | DOI: 10.14710/jksa.9.1.14-21

Abstract

Extraction of magnesium and sulfate from MgSO4–KCl–H2O solution system of 0.1 M salt concentration has been conducted. The 3–compartment electrolytic cell model was designed to fulfill the purpose. The cell is constructed from aquarium plastic box of 417 mL capacity divided into three compartments. Each compartment is separated by fixed plastic wall. One of the compartment with no electrode (mid compartment) was connected either to anodic (left) and cathodic (right) compartment using double filter paper strip of 2 x 6 (in cm) dimension. Electrolysis was performed in atmospheric environment under the 6 volt external electric potential using 7A Montana power supply. Experimental results show that electrolysis systems provide good separation of magnesium and sulfate from solution. Magnesium in the form of Mg(OH)2 and sulfate as H2SO4 has been obtained in about 92 % yield. Clear solution in the mid compartment show the absence of salt residues; both of cationic and anionic species migrate totally toward cathodic and anodic compartment respectively.
Co-Authors Mukhammad Asy'ari Muryati Muryati Muryati Muyati, Muryati Nanik Indah Setianingsih, Nanik Indah Nilawati Nilawati Rame Rame, Rame Rizal Awaludin Malik, Rizal Awaludin Susdawanita Susdawanita, Susdawanita Wasino Hadi Rahmanto