Iswanto Iswanto
Jurusan Kesehatan Lingkungan Poltekkes Kemenkes Yogyakarta

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Pemanfaatan Limbah Magnet sebagai Sumber Energi Listrik pada Lampu LED dan Charger Handphone Yusia Edvin Anjasmara; Iswanto Iswanto; Bambang Suwerda
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 12 No. 2 (2020): Agustus 2020
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

Because of its characteristics, magnet has important role in supporting the functioning of electronicdevices. However, abandoned magnet or magnet waste has potential harm for environmentand human. The purpose of this study was to reduce the accumulation of magnet waste and utilizeit as a source of electrical energy, by means of rotating the pedal of in the created tools, andthen the energy is then delivered to anchor component and then to capacitor. The study was apre-experiment with post test only design, where the electrical energy was used to LED lampand to charge mobile phone. The results showed that the power plant can turn on LED lights for15 minutes, and can charge mo-bile phone, i.e. in 5 minutes obtained 2% battery increase, in 10minutes 4% increase, and in 15 minutes 6% increase. It can be concluded that the created powergeneration equipment can be a solution to reduce magnet waste accumulation, and as thesource of electrical energy.
Pemanfaatan Sampah Sekam Padi dan Bungkus Rokok Sebagai Bahan Daur Ulang Kertas Tika Mahardhika Putri; Iswanto Iswanto; Adib Suyanto
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 12 No. 2 (2020): Agustus 2020
Publisher : Poltekkes Kemenkes Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.406 KB)

Abstract

Waste problem is a social phenomenon which must be in concern from all parties. GadingsariVillage in Sanden, Bantul Regency produces waste such as rice husk and cigarette packs. Bothtypes of waste contain cellulose which can be utilised in recycled paper production. The aim ofthis study was to utilize waste into a recycled paper and identify the tensile strength and absorptionof water on recycled paper. The study was an experiment with post test only design. Themeasurement consisted of water absorbency and pull srength of the recycled papers. The productionof recycled paper was yielded from three variations of comparison, i.e. 1:1, 1:2 and 0:1(control). The average results of the water absorption test were 56,2 mm, 67,4 mm and 95,6 mm,meanwhile the average of tensile strength test were 1,64 N/mm, 1,80 N/mm and 3,80 N/mm.Based on the testing of paper water absorption, it is known that all variations of paper conformsthe standards according to SNI 0499 in 2008, which are 50-100 mm. While testing the tensilestrength of paper in accordance with the SNI 14-6419 standard in 2001 is a variation of controlwhich is a minimum of 1,96 N/mm with a result of 3,80 N/mm. Therefore, the community is advisedto apply the production of recycled paper from rice husk and cigarette packs.