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All Journal Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Indonesian Review of Physics (IRiP) Lumbung Inovasi: Journal of Community Service

Pangga, Dwi

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Author-ID : 1481975

Humanities Astronomy Earth & Planetary Sciences Education Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

Published : 6 Documents Claim Missing Document

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Articles

UJI MEKANIK BATA RINGAN BERBAHAN DASAR LIMBAH PENGOLAHAN EMAS DENGAN VARIASI LIMBAH BATU-BARA DAN SEMEN Pangga, Dwi; Prasetya, Dwi Sabda Budi; Wathoni, Muhammad Munawir
Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Vol 2, No 1: December 2018
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

[Title: The Mechanical Test of Lightweight Brick Made from Gold Processing Waste with Variations in Coal and Cement Waste]. The purposes of this research are to make lightweight concrete using waste processing of gold with variation fly ash and cement the better than conventional concrete. The value of this research has tested mechanics which comprises density, porosity and strength. The research has done with some stage are: 1) Make lightweight concrete using LPE with variation fly ash and cement. 2) Characterization of the samples which comprise density, porosity and the strength, 3) Analysis of tested mechanical lightweight concrete. The value of lightweight concrete to make with variation composition fly ash and cement in a series are: (0/100), (5/95), (10/90), (15/85), (20/80) who are in volume. To make lightweight concrete with composition foam and water controlled as much as 10 ml and 150 ml at all of the sample. So we get the density value of lightweight concrete without fly ash is 1.61. In lightweight concrete with fly ash, we get the minimum density of lightweight is 1.15. The porosity value of lightweight concrete without fly ash is 13.6%, and the porosity value of lightweight concrete with fly ash is 8.0%. The compressive strength of lightweight concrete without fly ash is 1.629 MPa and the compressive strength of lightweight concrete with fly ash is 1.772 MPa. The value shown to process waste processing of gold with variation fly ash and cement to be lightweight concrete can get mechanical in character of lightweight to be better than conventional concrete.

PENGEMBANGAN LEMBAR KERJA SISWA (LKS) FISIKA BERBASIS GAMBAR MATERI GETARAN DAN GELOMBANG Pangga, Dwi; Ahzan, Sukainil; Suci, Devi Lara
Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Vol 1, No 2: June 2018
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

[Title: Development of Physics Student Worksheets Based on Image on Vibration and Waves Material]. Has conducted development research of media instruction in the form of Physics student worksheet (PSW) based image. This study aims to determine the eligibility of PSW based image subject matter of vibration and wave material in the class of VIII SMPN 4 Batukliang. Subjects in this study were students of class VIII SMPN 4 Batukliang the school year 2015/2016 amounting to 21 students. Methods of data collection in this study is the questionnaire. Eligibility test carried out by the validation by expert lecturers Mataram Teachers' Training College physical education and assessment by a physics teacher and students in a limited group test conducted at SMPN 4 Batukliang. The results of this development study found that the results of eligibility by expert lecturer percentage of 86.5%, then from teachers of eligibility obtained the percentage of 94%. The results based on the results of validation expert lecturers and showed a very good physics teacher. The response of the students was also very good with a percentage of 96.71% eligibility. Based on this analysis showed that the student worksheet physic-based image very decent used in the learning process.

UJI TEKAN BATAKO RINGAN DARI LIMBAH PENGOLAHAN EMAS DENGAN VARIASI KOMPOSISI ABU SEKAM PADI Pangga, Dwi; Ahzan, Sukainil; Syahrun, Syahrun
Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Vol 2, No 2: June 2019
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

[Title: Test Press Concrete of Gold Processing Waste With Variation of Rice Husk Ash Composition]. Lightweight concrete has been made from waste raw materials processing of gold and ash husk of rice with cement as the supporting materials, foam, and ADT. The purposed light brick-making determined the density and compressive strength. Concrete light created by variations in waste processing of gold and ash husk of rice was respectively 10% LPE + 90% ASP, 25% + 75%, 50% + 50%, 75% + 25%, 100% + 0% (in% volume), hardening time for 11 days. Parameter test performed include density test and compressive strength test. Test results showed that the density and the compressive strength of lightweight concrete with a variation of plus gold processing waste and ash husk of rice, the amount of cement on the conditions remained and the drying time for 11 consecutive days, the density of 1.005 gr/cm3, 0.986 gr/cm3, 1.077 gr/cm3, 1.091 gr/cm3, 1.133 gr/cm3 and the compressive strength of 1.34 MPa, 1.16 MPa, 1.77 MPa, 1.03 MPa, 1.29 , The intensity of the density and the compressive strength was influenced by the amount of foam mix, rice husk ash and ADT.

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.

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.

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.

Co-Authors Ahmadi Ahmadi Ahzan, Sukainil Edy Supriyanto Gummah, Syifaul Habibi Habibi Habiburahman, Lalu Harisanti, Baiq Muli Harsojo Harsojo Lovy Herayanti Nugraheni, Ari Dwi Prasetya, Dwi Sabda Budi Suci, Devi Lara Syahrun, Syahrun Wathoni, Muhammad Munawir

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