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All Journal Seminar Nasional Teknik Kimia Kejuangan Jurnal Ilmiah Pangabdhi Jurnal Sains & Teknologi Lingkungan
Setiyadi Setiyadi
Jurusan Teknik Kimia Fakultas Teknik Universitas Katolik Widya Mandala Surabaya
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Engineering Environmental Science Social Sciences Other

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PENGARUH GARAM TERHADAP PARAMETER VAN’T HOFF PADA PERSAMAAN KENAIKAN TITIK DIDIH Setiyadi Setiyadi
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

In the equation to determine the boiling point rise , Van't Hoff  parameter is used. However  the parameters can only be used for dilute solutions. For this reason, it is necessary to do experiment to determine but for concentrated dilution. A mathematical : k = a.exp (b.m) is used to find the parameter. One hundred mililiter distilled water is added into beaker, then NaCl is also added to form NaCl solution of 0,25 molal. was added to water to form a 0.25 molal Na Solution is heated until boil and the boiling temperature n recorded. The experiment are conducted for different molality and type pf salt. The experimen shows that boiling point are  influenced by strong/weak acid and strong/weak base. Each type of salt produce parameter different. The value of constante a is 0,853 to 3,707 and constante b is -0.16 to -0.42 with  errata average above 10%.
Prospek Bisnis Briket Daun Kering dalam Kegiatan Pendampingan dan Pemberdayaan Masyarakat Surabaya Menuju Ekonomi Sirkular Yuliati Yuliati; Hadi Santosa; Setiyadi Setiyadi; Suratno Lourentius
Jurnal Ilmiah Pangabdhi Vol 7, No 2: Oktober 2021
Publisher : LPPM Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/pangabdhi.v7i2.11604

Abstract

Waste processing activities through the 3R program (reduce, reuse and recycle) must be accompanied by reducing the volume/amount of waste itself. One way is to process waste starting from the source, among others, from dry leaf waste around our home environment. Community assistance activities in the use of dry leaves in the manufacture of charcoal briquettes as an alternative energy for environmental facilitators and Surabaya residents have been successfully carried out. The response of the residents was very positive and very enthusiastic in participating in this activity. The stages of implementing activities through workshops, training and mentoring are carried out in the form of lectures, questions and answers and direct practice in making briquettes. The results obtained in this community service are the formation of three superior briquette villages, namely Babat Jerawat, Tembok Gede and Ondomohen. The residents independently have succeeded in designing and making their own briquette printing equipment by utilizing used goods around them and making charcoal briquettes from dry leaves or burnt coconut shell charcoal and even has succeeded in marketing it even though it is still within the scope of the closest neighbors. Education about business prospects and marketing strategies was also given during training in empowering urban communities and responding to existing business opportunities and prospects so that they had a circular economy impact for community members to improve family welfare.
Model Persamaan Faktor Koreksi pada Proses Sedimentasi dalam Keadaan Free Settling Roessiana D L; Setiyadi Setiyadi; Sandy BH
Jurnal Sains & Teknologi Lingkungan Vol. 6 No. 2 (2014): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol6.iss2.art3

Abstract

Sedimentasi adalah proses pengendapan padatan yang terkandung dalam cairan oleh gaya gravitasi. Pada umumnya proses sedimentasi dilakukan setelah proses koagulasi dan flokulasi, tujuannya adalah untuk memperbesar partikel padatan agar menjadi lebih berat dan dapat tenggelam dalam waktu lebih singkat. Ukuran dan bentuk partikel mempengaruhi rasio permukaan terhadap volume partikel sedangkan konsentrasi partikel mempengaruhi pemilihan tipe bak sedimentasi. Semua factor ini mempengaruhi kecepatan mengendap partikel pada sedimentasi, karena itu membutuhkan kecepatan turunnya partikel untuk mendesain bak sedimentasi yang efektif dan efisien.Tujuan dari penelitian ini adalah untuk memperkirakan bentuk bentuk persamaan empiric yang merupakan faktor koreksi sebagai fungsi konsentrasi slurry mula-mula serta diameter partikel. Persamaan faktor koreksi dibuat berdasarkan data hasil perhitungan dari persamaan Stokes-Newton, Farag, Fergusson-Church serta persamaan Gibbs-Mathew-Link ternadap data percobaan. Percobaan yang dilakukan adalah mula-mula gaplek dihancurkan kemudian dicampur air lalu dimasukkan ke dalam tabung kaca setinggi 100 cm. Tinggi lapisan padatan yang turun ke bawah dicatat tingginya tiap 3 menit, pencatatan dihentikan setelah beda tinggi lapisan padatan yang diukur tiap 3 menit sudah mulai menurun. Percobaan dilakukan dengan menvariasikan konsentrasi tepung tapioka dalam umpan dari 0,5% sampai 5%, serta diameter partikel antara 0,057 mm sampai 0,1245 mm.Dari hasil penelitian dapat ditarik kesimpulan bahwa persamaan F yang paling cocok adalah bila dikalikan dengan Farag Law dengan persamaan F = 480.941. X 1(0,0751) .X 2(1,7777). . Jadi persamaan kecepatan sedimentasi yang paling baik adalah : gd p 2  s   f  f 2 V = . F 18  f b  
Co-Authors Hadi Santosa Roessiana D L Sandy BH Suratno Lourentius Yuliati Yuliati