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COMMUNITY EMPOWERMENT THROUGH THE SMALL SCALE BIO-DEGISTER TO ACCOMPLISH CATTLES WASTE IN THE KIDANG VILLAGE Pangga, Dwi; Harisanti, Baiq Muli; Habiburahman, Lalu; Ahmadi, Ahmadi
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol 2, No 1: October 2017
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v2i1.411

The purpose of this KKN-PPM program is to accomplish a problem from cattles waste that has not been managed properly. Further management is directed towards making small-scale biodegesters into energy-independent villages. This devotion is implemented in Kidang Village of East Praya in Central Lombok Regency. The availability of an abundant source of cattle dung is spread in each private cowshed (there is no collective cowshed) because of the distribution pattern of Kidang Village residents in small groups, supporting the implementation of this program. The soil texture of cracked clay in the dry season, as well as the limitations of the water source cause the degister model are suitable for the condition. Degister applied is a small-scale biodegister, designated for 1 family with the number of cattle at least 2 cattles (cow). Biodigester is installed in 6 different location as a pilot program to Kidang Village community. Digester uses a 1200 liter plastic tank, with in let, out let, and out putt gas using a piping system. The digester is filled with Â¾ part of the cattle dung, and Â¼ of the part as the gas reservoir. The gas produced from the digester model shows a mixture of water : cattle dung with a 2: 1 ratio is faster than the 1: 1 mixture. In the mixture with a ratio of 2: 1, the gas has begun formed on day 11 with increasing pressures day by day, with the pressures of 73.26 Pa, 106.36 Pa, and 112.00 Pa.

Pelatihan Pembuatan Bata Ringan dari Pengolahan Limbah Emas Tradisional pada Siswa MA Intishor Tanjung Karang Ahzan, Sukainil; Pangga, Dwi; Prasetya, Dwi Sabda Budi; Gummah, Syifaul; Herayanti, Lovy
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol 3, No 1: May 2018
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v3i1.435

Tujuan dari pengabdian ini adalah untuk pelatihan, transfer teknologi, dan penyuluhan tentang pembuatan batako ringan dari limbah pengolahan emas kepada mitra. Pengabdian ini dilaksanakan di MA Al-Intishor Tanjung Karang, Mataram. Dalam pengabdian ini siswa dan guru akan: 1) dijelaskan tentang bahaya limbah pengolahan emas serta bagaimana proses penanganannya sehingga menjadi ramah lingkungan; 2) dilatih/praktik bagaimana proses pembuatan batako ringan dari limbah pengolahan emas, sehingga menghasilkan batako ringan; 3) dilatih memvariasikan filler/penguat pada batako ringan dengan menggunakan bahan/material yang selama ini kurang dimanfaatkan sehingga batoko menjadi semakin kuat dan ringan. Luaran dari pengabdian ini yaitu bertambahnya ilmu siswa dan guru tentang pengelolaan limbah dan batako ringan hasil buatan sisw adan guru.Training of Making Lightweight Brick from Traditional Gold Processing Waste in Students of MA Intishor Tanjung KarangAbstractThe purpose of this service is to training, transfer technology, and knowledge about making lightweight brick from gold processing waste to partners. This devotion was carried out at MA Al-Intishor Tanjung Karang, Mataram. In this service students and teachers will: 1) learn about the dangers of gold processing and how the handling process becomes a friendly environment; 2) lightweight concrete building / processing process from gold processing waste, producing light brick; 3) Frying varies the filler / reinforcement on lightweight brick by using materials that have been underutilized so the brick becomes stronger and lighter. The output of this service is the increasing knowledge of students and teachers about the management of waste and light brick made by students and teachers.

Synthesis Nanofiber PVA/Chitosan Using Electrospinning Method and Application for Gold Recovery Prasetya, Dwi Sabda Budi; Ahmadi, Ahmadi; Pangga, Dwi; Nugraheni, Ari Dwi; Harsojo, Harsojo; Supriyanto, Edy; Habibi, Habibi
Indonesian Review of Physics (IRiP) Vol 4, No 1 (2021)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v4i1.3601

This paper introduces a new process of gold recovery using nanofiber PVA/Chitosan from a gold-cyanide solution. Gold recovery in cyanide solution is made using nanofiber PVA/Chitosan produced with electrospinning technique. This research was conducted through several stages, 1) The designing of electrospinning tool, 2) Synthesis of nanofiber PVA/Chitosan with electrospinning technique, and 3) Gold recovery experiment using nanofiber PVA/Chitosan biosorption with the variations of initial concentration and time. The results showed that nanofiber PVA/Chitosan could be used as a gold ion absorber. The occuration of the isotherm process follows the Freundlich isotherm model, which is advantageous and occurs on a heterogeneous surface. From the results, it was agreed that nanofiber PVA/Chitosan is potential for gold recovery.

UJI LAJU PEMBAKARAN DAN NILAI KALOR BRIKET WAFER SEKAM PADI DENGAN VARIASI TEKANAN Muh. Arafatir Aljarwi; Dwi Pangga; Sukainil Ahzan
ORBITA: Jurnal Kajian, Inovasi dan Aplikasi Pendidikan Fisika Vol 6, No 2 (2020): November
Publisher : Universitas Muhammadiyah Mataram

ABSTRAKPenelitian ini bertujuan untuk mengetahui laju pembakaran dan nilai kalor briket wafer sekam padi dengan variasi tekanan. Proses pembuatannya dengan menggunakan alat tekan briket, bahan yang digunanakan yaitu sekam padi dan tepung kanji. Hasil densitas briket wafer sekam padi dengan variasi tekanan secara berurut 20 PSI yaitu sebesar 0,453 g/cm3, 30 PSI yaitu sebesar 0,467 g/cm3, dan 40 PSI yaitu sebesar 0,500 g/cm3. Nilai kalor briket wafer sekam padi dengan variasi tekanan secara berurut 20 PSI yaitu sebesar 4.793,94 kalori, 30 PSI yaitu sebesar 5.137,64 kalori, 40 PSI yaitu sebesar 5.266,52 kalori. Kadar air yang dihasilkan dengan variasi tekana secara berurut 20 PSI yaitu sebesar 6,45 %, 30 PSI yaitu sebesar 6,40 %, 40 PSI yaitu sebesar 5,65 %. Nilai laju pembakaran briket wafer sekam padi secara berurut 20 PSI yaitu sebesar 2,2212 gram/menit, 30 PSI yaitu sebesar 2,2878 gram/menit, 40 PSI yaitu sesar 2,4363 gram/menit. Dapat disimpulkan bahwa semakin besar tekanan maka nilai kalor dan laju pembakaran dari briket wafer sekam padi akan semakin meningkat. Kata kunci: sekam padi, briket, nilai kalor, laju pembakaran. ABSTRACTThis study aims to determine the combustion rate and heating value of rice husk wafer briquettes with variations in pressure. The manufacturing process uses briquette press, the ingredients used are rice husk and starch. The results of the density of rice husk wafer briquettes with a sequence of 20 PSI pressure variations in the amount of 0.453 g/cm3, 30 PSI in the amount of 0.467 g/cm3, and 40 PSI in the amount of 0.500 g/cm3. The calorie value of rice husk wafer briquettes with a variety of sequential pressure variations of 20 PSI is 4,793.94 calories, 30 PSI is 5,137.64 calories, 40 PSI is 5,266.52 calories. The resulting water content with a variety of pressures in sequence 20 PSI is 6.45%, 30 PSI is 6.40 %, 40 PSI is 5.65%. The value of the rate of burning of rice husk wafer briquettes in sequence of 20 PSI is 2.22212 grams / minute, 30 PSI is 2.22878 grams / minute, 40 PSI is 2.4363 grams / minute fault. It can be concluded that the greater the pressure, the calorific value and the rate of combustion of rice husk wafer briquettes will increase. Keywords: rice husk, briquettes, heating value, rate of increase.

PENGEMBANGAN BRIKET BERBAHAN DASAR ECENG GONDOK DAN ABU SEKAM PADI SEBAGAI ALTERNATIF BAHAN BAKAR OVEN TEMBAKAU Sukainil Ahzan; Dwi Pangga; Dwi Sabda Budi Prasetya; A’an Hardiyansyah Putra Wijaya
ORBITA: Jurnal Kajian, Inovasi dan Aplikasi Pendidikan Fisika Vol 7, No 1 (2021): Mei
Publisher : Universitas Muhammadiyah Mataram

ABSTRAKTujuan dari penelitian ini yaitu untuk menghasilkan briket sebagai bahan bakar alternatif oven tembakau. Briket yang dihasilkan ada dua yaitu briket berbahan Dasar Eceng Gondok dan Briket berbahan dasar abu sekam padi. Kedua briket dibuat dengan variasi komposisi bahan perekat tepung tapioka 10% dan bahan dasar 90% untuk mendapatkan hasil briket terbaik untuk diterapakan sebagai alternatif bahan bakar pada proses pengovenan tembakau masyarakat.Selain variasi bahan dasar dilakukan juga variasi pada geometri pelet yang meliputi kotak pejal, kotak berongga, tabung pejal, dan tabung berongga. Masing-masing geometri dicetak dengan variasi tekanan 10 PSI, 20 PSI, dan 30 PSI. Hasil penelitian menunjukkan bahwa briket dengan bahan dasar abu sekam padi menghasilkan kalor yang lebih tinggi dibandingkan dengan briket berbahan dasar eceng gondok. Geometri pelet briket berongga menghasilkan kalor yang lebih tinggi dibandingkan dengan briket pejal. Geometri kotak berongga mengasilkan kalor terbaik dibandingan dengan geometri tabung pejal. Tekanan optimum dalam pembuatan pelet briket dihasilkan pada tekanan 20 PSI. Kata kunci: briket; eceng gondok; abu sekam padi; oven tembakau. ABSTRACTThe purpose of this research is to produce briquettes as an alternative fuel for tobacco ovens. There are two briquettes produced, namely briquettes made from water hyacinth and briquettes made from rice husk ash. The two briquettes were made with a variation of the composition of 10% tapioca starch adhesive and 90% base material to get the best briquette results to be applied as an alternative material in the community tobacco oven process. In addition to variations in the basic material, variations in pellet geometry were also carried out, which included solid boxes, hollow boxes, solid tubes, and hollow tubes. Each geometry is printed with a pressure variation of 10 PSI, 20 PSI, and 30 PSI. The results showed that briquettes made from rice husk ash produced higher heat than water hyacinth briquettes. Hollow briquette pellet geometry produces higher heat compared to solid briquettes. Hollow box geometry produces the best heat compared to solid tube geometry. The optimum pressure in the manufacture of briquette pellets is produced at a pressure of 20 PSI. Keywords: briquettes; water hyacinth; rice husk ash; tobacco oven.

ANALISIS NILAI KALOR DAN LAJU PEMBAKARAN BRIKET TONGKOL JAGUNG SEBAGAI SUMBER ENERGI ALTERNATIF Dwi Pangga; Sukainil Ahzan; Habibi Habibi; A’an Hardiyansyah Putra Wijaya; Linda Sekar Utami
ORBITA: Jurnal Kajian, Inovasi dan Aplikasi Pendidikan Fisika Vol 7, No 2 (2021): November
Publisher : Universitas Muhammadiyah Mataram

ABSTRAKTujuan dari penelitian ini yaitu untuk menghasilkan briket tongkol jagung sebagai alternative sumber energi yang memiliki nilai kalor yang tinggi. Briket tongkol jagung dibuat dari tongkol jagung yang sudah dikeringkan dan dihaluskan sebelumnya dengan ukuran 20 mesh. Masing-masing perlakuan dicetak dengan variasi persentase perekat tepung tapioka yaitu 5%, 10%, dan 15%. Selain variasi perekat dilakukan juga variasi tekanan pembentukannya untuk melihat komposisi terbaik yang menghasilkan nilai kalor yang tinggi dan laju pembakaran yang sesuai. Briket selanjutnya diuji nilai kalor dan laju pembakarannya dengan menggunakan alat bom calorimeter. Hasil penelitian menunjukkan bahwa secara berturut-turut nilai kalor dan laju pembakaran briket dengan persentase komposisi perekat 5%, 10%, 15% yaitu 21,00 kJ, 22,68 kJ, 31,08 kJ, dan 12,00 gram/menit, 13,33 gram/menit, 13,50 gram/menit. Hasil terbaik dihasilkan pada komposisi persentase perekat 15% dengan nilai kalor mencapai 31,08 kJ, dan laju pembakaran 13,50 gram/menit yang tidak terlalu jauh meningkat dibandingkan dengan komposisi persentase perekat lainnya. Kata kunci: briket; tongkol jagung; nilai kalor; laju pembakaran ABSTRACTThe purpose of this research is to produce corn cobs briquettes as an alternative energy source that has a high calorific value. Corn cobs briquettes are made from corn cobs that have been dried and previously mashed with a size of 20 mesh. Each treatment was printed with variations in the percentage of tapioca starch adhesive, namely 5%, 10%, and 15%. In addition to variations of the adhesive, variations in the formation pressure were also carried out to see the best composition that produced a high heating value and an appropriate combustion rate. The briquettes were then tested for calorific value and rate of combustion using a bomb calorimeter. The results showed that the calorific value and burning rate of briquettes with the percentage of adhesive composition 5%, 10%, 15%, were 21.00 kJ, 22.68 kJ, 31.08 kJ, and 12.00 gram/minute, respectively. 13.33 grams/minute, 13.50 grams/minute. The best results were obtained at 15% adhesive percentage composition with a calorific value of 31.08 kJ, and a burning rate of 13.50 gram/minute which was not significantly increased compared to other adhesive percentage compositions. Keywords: briquettes; corn cobs; calorific value; combustion rate

PENGARUH VARIASI BAHAN PEREKAT BIOBRIKET BERBAHAN DASAR TONGKOL JAGUNG TERHADAP NILAI KALOR DAN LAJU PEMBAKARAN Dwi Pangga; Baiq Rina Amalia Safitri; Azhul Azmil Sani; Saiful Prayogi
ORBITA: Jurnal Kajian, Inovasi dan Aplikasi Pendidikan Fisika Vol 8, No 1 (2022): Mei
Publisher : Universitas Muhammadiyah Mataram

ABSTRAKTerdapat limbah tongkol jagung tepatnya di desa Pringgabaya kabupaten Lombok Timur. Terjadi kelangkaan dan kenaikan harga bahan bakar mineral efeknya hampir dirasakan semua kalangan masyarakat, baik dari industri maupun masyarakat sipil. Jenis penelitian ini adalah penelitian eksperimental di laboratorium. Dalam penelitian digunakan komposisi dengan 95 ATJ +5% perekat, 90% ATJ+ 10% perekat dan 85%+15%. Hasil penelitian yang didapat adalah briket yang memiliki nilai kalor tertinggi yaitu briket berbentuk kotak dengan campuran prekat 5% nilai kalor yang dihasilkan sebesar 25,200 (J) atau 6,800 (kal). Sedangkan nilai kalor terendah yaitu briket berbentuk tabung dengan campuran perekat 5% nilai kalor yang dihasilkan sebesar 9,576(J) tau 2,280 (kal). Sedangkan nilai laju pembakaran masing-masing briket dimana laju pembakaran tertinggi sebesar 17,925 gram/menit geometri kotak dengan komposisi 15% prekat, sedangkan nilai laju pembakaran terendah sebesar 3,33 gram/menit geometri tabung dengan komposisi 5%prekat. Kata kunci: limbah; tongkol jagung; kalor dan pembakaran. ABSTRACTThere is corncob waste, precisely in Pringgabaya village, East Lombok district. There is a scarcity and an increase in the price of mineral fuel, the effect is almost felt by all circles of society, both from industry and civil society. This type of research is experimental research in the laboratory. In this study used a composition with 95 ATJ +5% adhesive, 90% ATJ + 10% adhesive and 85%+15%. The resultsobtained are briquettes that have the highest heating value, namely box-shaped briquettes with a mixture of 5% adhesive, the resulting calorific value is 25,200 (J) or 6,800 (cal). While the lowest calorific value is tube-shaped briquettes with 5% adhesive mixture, the resulting calorific value is 9,576(J) or 2,280 (kal). While the value of the combustion rate of each briquette where the highest combustion rate is 17,925 grams/minute box geometry with a composition of 15% adhesive, while the lowest combustion rate is 3,33 grams/minute tube geometry with a 5% adhesive composition.Keywords: waste; corncob; heat and combustion.

PENGARUH VARIASI BAHAN PEREKAT BIOBRIKET BERBAHAN DASAR TONGKOL JAGUNG TERHADAP NILAI KALOR DAN LAJU PEMBAKARAN Dwi Pangga; Baiq Rina Amalia Safitri; Azhul Azmil Sani; Saiful Prayogi
ORBITA: Jurnal Kajian, Inovasi dan Aplikasi Pendidikan Fisika Vol 8, No 1 (2022): Mei
Publisher : Universitas Muhammadiyah Mataram

ABSTRAKTerdapat limbah tongkol jagung tepatnya di desa Pringgabaya kabupaten Lombok Timur. Terjadi kelangkaan dan kenaikan harga bahan bakar mineral efeknya hampir dirasakan semua kalangan masyarakat, baik dari industri maupun masyarakat sipil. Jenis penelitian ini adalah penelitian eksperimental di laboratorium. Dalam penelitian digunakan komposisi dengan 95 ATJ +5% perekat, 90% ATJ+ 10% perekat dan 85%+15%. Hasil penelitian yang didapat adalah briket yang memiliki nilai kalor tertinggi yaitu briket berbentuk kotak dengan campuran prekat 5% nilai kalor yang dihasilkan sebesar 25,200 (J) atau 6,800 (kal). Sedangkan nilai kalor terendah yaitu briket berbentuk tabung dengan campuran perekat 5% nilai kalor yang dihasilkan sebesar 9,576(J) tau 2,280 (kal). Sedangkan nilai laju pembakaran masing-masing briket dimana laju pembakaran tertinggi sebesar 17,925 gram/menit geometri kotak dengan komposisi 15% prekat, sedangkan nilai laju pembakaran terendah sebesar 3,33 gram/menit geometri tabung dengan komposisi 5%prekat. Kata kunci: limbah; tongkol jagung; kalor dan pembakaran. ABSTRACTThere is corncob waste, precisely in Pringgabaya village, East Lombok district. There is a scarcity and an increase in the price of mineral fuel, the effect is almost felt by all circles of society, both from industry and civil society. This type of research is experimental research in the laboratory. In this study used a composition with 95 ATJ +5% adhesive, 90% ATJ + 10% adhesive and 85%+15%. The resultsobtained are briquettes that have the highest heating value, namely box-shaped briquettes with a mixture of 5% adhesive, the resulting calorific value is 25,200 (J) or 6,800 (cal). While the lowest calorific value is tube-shaped briquettes with 5% adhesive mixture, the resulting calorific value is 9,576(J) or 2,280 (kal). While the value of the combustion rate of each briquette where the highest combustion rate is 17,925 grams/minute box geometry with a composition of 15% adhesive, while the lowest combustion rate is 3,33 grams/minute tube geometry with a 5% adhesive composition.Keywords: waste; corncob; heat and combustion.

EFEKTIFITAS PENERAPAN VIDEO PEMBELAJARAN TERHADAP HASIL BELAJAR DAN PEMAHAMAN KONSEP FISIKA SISWA Dwi Pangga; Sukainil Ahzan; Lintang Pratama
ORBITA: Jurnal Kajian, Inovasi dan Aplikasi Pendidikan Fisika Vol 6, No 1 (2020): Mei
Publisher : Universitas Muhammadiyah Mataram

ABSTRAKPenelitian ini bertujuan untuk meningkatkan hasil belajar dan pemahaman konsep siswa kelas XI MA Al-Istiqomah NW Bedus melalui penerapan video pembelajaran berbasis microsoft powerpoint. Data hasil belajar dan pemahaman konsep siswa diperoleh melalui data kuantitatif dan kualitatif. Jenis penelitian yang digunakan adalah penelitian quasi experimental dengan one group pretest posttest design. Data kuantitatif diperoleh melalui pretest dant posttest yang meliputi tes hasil belajar dan tes pemahaman konsep. Sedangkan data kualitatif diperoleh melalui lembar observasi dan angket kelayakan media video pembelajaran. Hasil penelitian menunjukkan bahwa hasil belajar siswa termasuk dalam katagori sangat baik dengan nilai N-gain 71%. Sementara hasil tes pemahaman konsep menunjukkan pemahaman siswa masih rendah dengan persentasi nilai rata-rata masih di bawah 50%. Kata kunci: efektifitas; hasil belajar; pemahaman konsep ABSTRACTThis study aims to improve learning outcomes and conceptual understanding of students of class XI MA Al-Istiqomah NW Bedus through the application of learning videos based on Microsoft PowerPoint. Data on learning outcomes and students' understanding of concepts are obtained through quantitative and qualitative data. This type of research is a quasi experimental study with one group pretest posttest design. Quantitative data were obtained through pretest and posttest which included learning achievement tests and concept understanding tests. While qualitative data were obtained through observation sheets and the feasibility questionnaire of instructional video media. The results showed that student learning outcomes included in the category are very good with an N-gain value of 71%. While the results of the concept understanding test show that students' understanding is still low with an average value percentage below 50%. Keywords: effectiveness; learning outcomes; concept understanding

PELATIHAN PEMBUATAN VIDEO PEMBELAJARAN UNTUK GURU MA AL-ISTIQOMAH NW BEDUS Dwi Pangga; Sukainil Ahzan; Syifaul Gummah; Saiful Prayogi
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 3, No 2 (2020): Mei
Publisher : Universitas Muhammadiyah Mataram

ABSTRAKTujuan umum kegiatan pengabdian masyarakat ini adalah menstranfer ilmu berupa cara pembuatan video pembelajaran pada guru MA Al-Istiqomah NW Bedus. Diharapkan hasil dari kegiatan ini sebagai langkah awal terjalinnya kerjasama antara kampus IKIP dengan pihak mitra secara berkelanjutan dan tidak terpisahkan. Pengabdian ini dilaksanakan di MA Al-Istiqomah NW Bedus, Desa Bangket Parak, Kecamatan Pujut, Lombok Tengah, dengan sasaran kegiatan adalah guru-guru sekolah sebanyak 20 orang. Pelaksanaan kegiatan dilaksanakan selama 6 (enam) bulan meliputi survei lokasi, diskusi penentuan jadwal kegiatan dengan pihak sekolah (mitra), sosialisasi kegiatan kepada calon target binaan, pelatihan pembuatan media, monitoring, dan evaluasi kegiatan. Indikator keberhasilan kegiatan terukur> 90% kehadiran peserta datang tepat waktu dan berada dalam ruangan hingga kegiatan berakhir. Respon kebermanfaatan kegiatan pelatihan meliputi sebesar 85,0 % (kategori sangat bagus) dan 15,0 % berkategori cukup bagus; dan tingkat motivasi menjadi guru modern sebesar 80,0 % tertarik dan 20,0% berkategori cukup. Kata Kunci: pelatihan; video; media pembelajaran. ABSTRACTThe general objective of this community service activity is to transfer knowledge in the form of making instructional video media for MA Al-Istiqomah Bedus teachers. It is expected that the results of this activity will be the first step towards establishing cooperation between the IKIP campus and partners in an ongoing and inseparable way. This dedication was carried out at MA Al-Istiqomah NW Bedus, Bangket Parak Village, Pujut District, Central Lombok, with the aim of the activity being 20 school teachers. The implementation of the activities carried out for 1 (one) month includes a location survey, discussion of determining the schedule of activities with the school (partners), socialization of activities to the target target, training in media development, monitoring, and evaluation of activities. Measured indicators of success of activities> 90% attendance of participants arrive on time and stay indoors until the activity ends. The response of the usefulness of the training activities covered 85.0% (very good category) and 15.0% was quite good; and the motivation level to become a modern teacher is 80.0% interested and 20.0% is in the sufficient category. Keywords: training; video; learning media.

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