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All Journal Jurnal Redoks AL-ULUM: JURNAL SAINS DAN TEKNOLOGI Joong-Ki
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Politeknik Negeri Sriwijaya
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PENGARUH PENAMBAHAN EKSTRAK ASAM JAWA (TAMARINDUS INDICA L) TERHADAP KUALITAS & KUANTITAS PIEZOELECTRIC CRYSTAL SEBAGAI TRANSDUSER ENERGI LISTRIK Muhammad Iskandar Al Hakim; Idha Silviyati; Endang Supraptiah
Jurnal Redoks Vol. 8 No. 1 (2023): REDOKS JANUARI-JUNI
Publisher : Universitass PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/redoks.v8i1.9090

Abstract

Energi listrik merupakan salah satu energi primer yang tidak dapat dilepaskan penggunaannya dalam kehidupan sehari-hari. Namun, sumber energi pembangkit listrik di Indonesia sebagian besar bergantung pada sumber daya alam yang tidak dapat diperbarui sehingga diperlukan suatu inovasi mengenai sumber energi pembangkit listrik alternatif. Salah satu contoh dari sumber energi listrik adalah kristal. Piezoelektrik adalah suatu kemampuan yang dimiliki sebagian kristal maupun bahan-bahan tertentu lainnya yang dapat menghasilkan tegangan listrik jika mendapatkan perlakuan tekanan, regangan dan vibrasi. Bahan utama pembuat kristal piezoelektrik sendiri adalah natrium karbonat dan kalium bitartrat yang salah satunya terkandung pada buah asam jawa (Tamarindus  Indica L.) sebesar 5,27% kalium bitartart yang digunakan sebagai bahan baku tambahan. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan ekstrak asam jawa terhadap kualitas dan kuantitas Piezoelektric Crystal. Hasil penelitian menunjukkan bahwa produk Piezoelectric Crystal (PC) terbukti dapat dihasilkan melalui reaksi antara reaktan natrium karbonat dan kalium bitartarat untuk perbandingan %w/w dengan rasio (0,8:1) sebanyak (47,5:60 gram) dan variasi penambahan ekstrak asam jawa 5, 10, 15, 20 dan 25 mL berkonsentrasi 1,0189 M kalium bitartarat dalam ekstrak asam jawa mempengaruhi bertambahnya nilai %yield, voltase dan densitas produk dengan kondisi optimum penambahan ekstrak asam jawa yaitu pada 25 mL menghasilkan %yield, densitas dan voltase produk tertinggi sebesar 99,91%, 1,6608 gr/cm3 & 163 mV tanpa perlakuan variasi tekanan. Kata kunci : Piezoelectric Crystal, Asam Jawa (Tamarindus Indica L.), Energi Listrik.
WASTEWATER TREATMENT DESIGN OF KAMPAR STATE POLYTECHNIC CPO PURIFICATION LABORATORY sri Murda Niati; Idha Silvi; Endang Supraptiah; Gemala Cahya
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 10, No 1 (2024)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v10i1.14004

Abstract

Kampar Polytechnic has a miniplan laboratory for processing CPO into cooking oil, biodiesel, and soap. During its operation, this processing produces liquid waste and solid waste. The waste released must be treated before being discharged into the environment, provided that the amount of COD reduction efficiency is good enough (63,41%). The COD content in wastewater is still above environmental quality standards. To reduce COD according to permissible standards, recycling is carried out with effluent from the sedimentation process returned to the equalization unit. The design of equalization, coagulation, and flocculation tubs has been successfully carried out. The results obtained are the dimensions of the equalization bath at 2m length, 2m width, and 1.2m height. The dimensions of the coagulation bath are 1.5m long, 1.0m wide, and 1.2m high. The dimensions of the flocculation bath are 2.5m long, 1.5m wide, and 1.2m high, with the provision that consideration meets the volume of liquid waste treated.
Bahan Kimia Pencemar Berbahaya Disekitar Kita Sri Murda Niati; Idha Silviyati; Endang Supraptiah; Gemala Cahaya
Joong-Ki : Jurnal Pengabdian Masyarakat Vol. 4 No. 1: November 2024
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/joongki.v4i1.6139

Abstract

Tujuan kegiatan pengabdian ini adalah memberikan edukasi kepada ibu ibu pengurus dan anggota Dharma Wanita Persatuan (DWP) Dinas Kesehatan Kab. Siak terhadap apa itu bahan pencemar kimia, jenis jenis pencemar, contoh yang sering ditemukan dilingkungan dan digunakan dalam kehidupan sehari-hari dan bagaimana mengetahui tercemar dan memberikan solusi. Dimateri yang disajikan diangkat tiga topik sebagai sampel yang sangat sering kita temui di lingkungan yakni peptisida yang digunakan di sayur sayuran, ikan dan mi basah yang berformalin dan penggunaan wadah staeroform.
WASTEWATER TREATMENT DESIGN OF KAMPAR STATE POLYTECHNIC CPO PURIFICATION LABORATORY sri Murda Niati; Idha Silvi; Endang Supraptiah; Gemala Cahya
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 10, No 1 (2024)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v10i1.14004

Abstract

Kampar Polytechnic has a miniplan laboratory for processing CPO into cooking oil, biodiesel, and soap. During its operation, this processing produces liquid waste and solid waste. The waste released must be treated before being discharged into the environment, provided that the amount of COD reduction efficiency is good enough (63,41%). The COD content in wastewater is still above environmental quality standards. To reduce COD according to permissible standards, recycling is carried out with effluent from the sedimentation process returned to the equalization unit. The design of equalization, coagulation, and flocculation tubs has been successfully carried out. The results obtained are the dimensions of the equalization bath at 2m length, 2m width, and 1.2m height. The dimensions of the coagulation bath are 1.5m long, 1.0m wide, and 1.2m high. The dimensions of the flocculation bath are 2.5m long, 1.5m wide, and 1.2m high, with the provision that consideration meets the volume of liquid waste treated.
Co-Authors Gemala Cahaya Gemala Cahya Idha Silvi Idha Silviyati Muhammad Iskandar Al Hakim sri Murda Niati