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All Journal Seminar Nasional Teknik Kimia Kejuangan CHEMPUBLISH JOURNAL JOURNAL OF EARTH ENERGY ENGINEERING
Idral Amri
Jurusan Teknik Kimia Fakultas Teknik, Universitas Riau
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology

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Journal : CHEMPUBLISH JOURNAL

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Studi karakteristik sintesis bioplastik menggunakan bahan dasar ubi kayu dengan variasi penambahan selulosa nanas dan pengadukan Idral Amri; khairani; Irdoni
CHEMPUBLISH JOURNAL Vol. 4 No. 2 (2019): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v4i2.7649

Abstract

Bioplastic or biodegradable plastics are polymers that are composed of organic monomers found in starch and cellulose. The purpose of this research is to make bioplastics with use of raw material starch cassava and cellulose filler pineapple leaves, by varying the speed of stirring and the number of fillers, as well as knowing the nature of the bioplastic mechanics (Modulus Young, Elogenasi , Strong tensile), biodegradability, morphology and site. The methods on this research started from the preparation of raw materials, the manufacture of cellulose pineapple, the manufacture of cassava starch and the manufacture of bioplastics. The concentration of fillers used in the study was 0.3 grams, 0.6 grams, 0.9 grams, 1.2 grams and 1.5 grams in every 10 grams of starch, stirring variations of 200 rpm and 300 rpm. And obtained the best results in this study is bioplastic which has a strong tensile 13.24 Mpa, elongation 5.16%, modulus young 1072.83 Mpa, biodegrability of the land for 7 days, site 33.33%, obtained at a concentration of 1.5 grams cellulose and pineapple Stirring 300 rpm.
Pengolahan limbah cair industri pelapisan logam dengan proses elektrokoagulasi secara kontinyu Idral Amri; Febri Awalsya; Irdoni
CHEMPUBLISH JOURNAL Vol. 5 No. 1 (2020): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v5i1.7650

Abstract

Limbah cair industri pelapisan logam berasal dari hasil pembilasan pada proses pelapisan dengan Chrome, masih banyak terkandung zat berbahaya apabila langsung dibuang kelingkungan. Untuk itu perlu dilakukan pengolahan lebih lanjut dengan menggunakan elektrokoagulasi. Metode ini memiliki potensi penjernihan limbah cair pelapisan logam dan penurunan kandungan logam yang terkandung tanpa adanya penambahan koagulan. Tujuan dari penelitian ini untuk mengetahui penerapan metoda elektrokoagulasi untuk menetralkan pH, serta menurunkan kadar TSS dan Cr pada limbah dan untuk mengetahui pengaruh perubahan laju alir dan kuat arus untuk menetralkan pH, serta menurunkan kadar TSS dan Cr pada limbah. Parameter yang diuji meliputi pH, TSS (Total Suspended Solid), dan Cr. Proses elektrokoagulasi menggunakan listrik searah melalui elektroda. Reaktor elektrokoagulasi yang dipasangkan kabel ke power suplay kemudian disambungkan ke arus listrik dengan variasi kuat arus (1,2 ; 1,6 ; dan 2 A) dan variasi laju alir (0,78 ; 1,32 ; 2,7 L/menit). Hasil penelitian didapat kondisi optimum pada kuat arus 2 A dan laju alir 0,78 L/menit dengan kenaikan pH dari 4,5 menjadi 6,6, penurunan TSS dari 3,2 menjadi 1,2 mg/L, penurunan Cr sebesar 82,4 % dari 1,5 mg/L menjadi 0,263 mg/L.
Pengolahan limbah cair tahu menjadi air bersih dengan metode elektrokoagulasi secara kontinyu Idral Amri; Pratiwi Destinefa; Zultiniar
CHEMPUBLISH JOURNAL Vol. 5 No. 1 (2020): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v5i1.7651

Abstract

The liquid waste of the tofu industry contains high organic contaminants, such as proteins and amino acids. These organic compounds causes liquid waste of tofu industry to contain high BOD, COD, and TSS so that it can pollute the environment. Therefore, tofu liquid should be removed first by electrocoagulation method. This method has the potential to purify tofu liquid waste and decrease the content of COD, BOD, TSS, and pH contained without the addition of coagulants. The purpose of this study was to determine the effect of voltage and flow rate to neutralize pH, and reduce levels of COD, BOD, and TSS in tofu liquid waste. The parameters tested included COD, BOD, TSS, and pH. The electrocoagulation process uses electrical power that flows in the direction of the electrode. The electrocoagulation reactor was paired with a cable connected to the power supply then connected to an electric current with voltage and flow rate variations. The results of this study found that optimum conditions were obtained at current of 12 V and flow rate of 0.087 L/min with increasing pH from pH from 3.5 to 6.7, percent removal of COD 72.17%, percent removal BOD 71.53% , and percent removal TSS 90.90%.
Co-Authors Adrianto Ahmad Bahruddin Febri Awalsya Gunawan Gunawan Irdoni Irdoni Khairani Pratiwi Destinefa Rahmah Nabilah Wida Sri Wani Zultiniar