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All Journal Jurnal Kimia Riset Jurnal Inovasi Teknik Kimia Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa
Srie Muljani
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Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Mathematics

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THE EFFECT OF VARIATION IN THE NUMBER OF SPRAYS AND DISCHARGE ON THE TECHNOLOGY SPRAY FOR EVAPORATION Cahyo, Mei Syella Kurnia Putri; Moch Iqbal Darmawan; Srie Muljani
Jurnal Kimia Riset Vol. 9 No. 1 (2024): June
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v9i1.56390

Abstract

Spray technology is an innovative salt production process technology that is able to increase seawater salinity and accelerate the salt production process. This study aims to determine the effect of variations in the amount of spray and discharge in spray technology on increasing seawater salinity. The experimental method was carried out by varying the spray and water discharge amount in spray technology according to the variables. This research has been successfully carried out to increase the salinity of synthetic seawater where to increase from the initial seawater salinity of 2.5 °Be to 24 °Be. It takes 16 hours taken in 3 days using the number of sprays as much as 5 sprays with a seawater flow rate of 0.2424 m³/hour in an evaporation pond of 15í—7 m. The use of the spray method proved effective in accelerating the rate of increase in salinity of synthetic seawater, which was tested to increase the salinity of synthetic seawater from 2.5 °Be to 12 °Be with an evaporation time in traditional methods of 15 days to only 11 hours. This can also happen because the temperature, humidity and wind speed were relatively stable when the research took place.
MODEL MATEMATIK LAJU PENGUAPAN AIR LAUT DENGAN PROSES EVAPORASI MENGGUNAKAN METODE POLYNOMIA Indah Dwi Wahyuningsih; Silviya Nur Ridha; Srie Muljani
Jurnal Inovasi Teknik Kimia Vol 9, No 3 (2024)
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v9i3.9985

Abstract

Rendahnya produksi garam yang diperoleh dapat disebabkan kemarau basah yang membuat panen produksi garam tidak maksimal dan pemanfaatan teknologi garam yang belum merata. Banyaknya masyarakat memproduksi garam menggunakan cara tradisional yang hanyamemaanfaatkan panas matahari dan kincir angin. Dalam penelitian ini, peneliti memanfaatkan matahari dengan bantuan teknologi spray untuk mempercepat proses evaporasi air laut untuk mengasilkan garam. Kemudian menyusun model matematik laju penguapan air laut menggunakan metode polynomial dengan variasi jumlah spray dan aliran debit yang nantinya dapat mengetahui kecepatan angka evaporasinya. Hasil optimasi variasi jumlah spray dan aliran debit mendapatkan bahwa penguapan air laut yang optimal pada debit 1403763,4955 cm3/jam dengan variasi jumlah spray 3;5;7 dan debit 1615348,1843 cm3/jam dengan variasispray 3 dan 7 karena hasil yang di dapat menunjukkan persen kesalahan tidak melebihi 10 %.
KAJIAN ADSORPSI LOGAM CU DENGAN ADSORBEN SILIKA GEL Wisnu Adi Prasojo; Srie Muljani
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 5 (2024): Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/algoritma.v2i5.163

Abstract

Adsorption is a separation process on a particular substance based on the affinity of a compound to a solid. The adsorption process requires an adsorbent as an absorbent material and an adsorbate as an absorbed component. The adsorbent that is often used to absorb Cu2+ ions is silica gel. Silica gel is a rigid gel that is amorphous. In silica gel there are two main bonding groups, namely siloxane and silanol groups which cause silica gel to easily absorb polar molecules, especially water. The purpose of this research is to get the best mass of silica and the effect of the initial concentration of Cu ions on the final concentration of Cu metal. In this study, two operating conditions were varied, namely the mass of silica gel adsorbent 0.4 grams; 0.6 grams; 0.8 grams; 1 gram; 1.2 grams and the initial concentration of Cu metal 3 ppm; 4 ppm; 5 ppm; 6 ppm; 7 ppm. The results of this study showed that the silica content of bagasse ash was 70.97% with a surface area of 283.802 m2/g. The best result of this study reduced the content of copper metal (Cu) by 88% in the condition of silica gel mass of 1.2 grams. The adsorption isotherm shows that the data is more in line with the Freundlich equation. The resulting equation is y = 0.4268x + 0.4969 with an R2 value of 0.9837.
Co-Authors Cahyo, Mei Syella Kurnia Putri Indah Dwi Wahyuningsih Moch Iqbal Darmawan Silviya Nur Ridha Wisnu Adi Prasojo