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

Prasetya, Dwi Sabda Budi

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Author-ID : 1243971

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

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UJI POROSITAS DAN KUAT TEKAN BATAKO RINGAN BERBAHAN DASAR LIMBAH PENGOLAHAN EMAS (LPE) DENGAN FILLER POHON PISANG (FPP) Sumbawaty, Nola; Ahzan, Sukainil; Prasetya, Dwi Sabda Budi
Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Vol 1, No 2: June 2018
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

[Title: Porosity Test and Compressive Strength of Lightweight Brick Based on Gold Processing Waste (LPE) with Banana Tree Filler (FPP)]. Lightweight concrete bricks are made from gold processing waste (LPE) and banana tree filler (FPP) with cement, foam, and clear water. The purpose of making light brick to know the value of porosity and value of compressive strength. Lightweight brick is made with gold processing waste (LPE) and banana tree filler (FPP) consecutively is 250 ml of LPE + 1 layer of FPP, 250 ml of LPE + 2 layers of FPP, 250 ml of LPE + 3 layers of FPP, 250 ml of LPE + 4 layers of FPP . Hardening time is carried out for 22 days in sunlight unspoiled. Tests performed include: density test, porosity test, and compressive strength test. From the test results showed that the porosity value and compressive strength of lightweight concrete bricks with gold processing waste plus the filler of banana trees with the amount of cement in the fixed condition and drying time for 22 consecutive days, the density value 1349, 09 kg / m3, 1290 kg / m3, 1121.6 kg / m3, 1168.3 kg / m3, 1254 kg / m3 and compressive strength value of 2.43 MPa, 1.25 MPa, 1.68 MPa, 2.13 MPa, 1.32 MPa. The high value of porosity and compressive strength value is influenced by the amount of mixture of foam, banana tree filler (FPP) and stirring method

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.

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.

PENGARUH PENGGUNAAN MEDIA LABORATORIUM VIRTUAL FISIKA TERHADAP KEMAMPUAN PEMECAHAN MASALAH SISWA Darti, Enti Yuyun; Fuaddunazmi, Muhammad; Prasetya, Dwi Sabda Budi
Lensa : Jurnal Kependidikan Fisika Vol 3, No 2: December 2015
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (373.125 KB)

Physics is one of the subjects taunght in SMPN 4 Praya Tengah. The Instructional media which used is still relatively conventional with teaching materials such as text books. This study used a learning media of animation software in a virtual learning environment to enhance the problem solving ability of students. This study was a quasi-eksperimental study. The study also included into the study of population, because the entrie student population used in the study. The data analysis technigue which used was the t-test. The results obtained are tcaculate = 2,87 and ttable = 1,72. because tcaculate its count greater than ttable it can be concluded that there are impact of using the virtual media laboratory of physics to student’s problem-solving abilites.

PEMBUATAN BATA RINGAN BERBAHAN DASAR LIMBAH PENGOLAHAN EMAS TRADISIONAL DI PROPINSI NTB Prasetya, Dwi Sabda Budi; Priyambodo, Seto; Ahzan, Sukainil
Lensa : Jurnal Kependidikan Fisika Vol 4, No 2: December 2016
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (128.388 KB)

Research on the manufacture of lightweight brick with basic material waste processing of goldin the province of West Nusa Tenggara has been done. This research is very important because most of the people in NTB separate gold by amalgamation and cyanidation methods. Processes that do this will result in hazardous waste on the environment so that the need for countermeasures. The purpose of this research is to create a lightweight bricks made of waste processing of gold which has a strong press that meets national standards. This research was conducted through two stages, namely 1) Stage of light brick making, 2) Phase compressive strength test light brick production. The results showed that lightweight bricks made with waste raw gold processing and cement with a ratio of 3: 1 has a compressive strength of 7.80 kg / cm2. These results demonstrate compliance with national standards, namely 7.83 kg / cm2 so that the product of this research can be said to be feasible.

Analisis Kandungan Mineral Tembaga (Cu) yang Terdapat pada Struktur Batu Tambang Dengan Metode Atomic Absorption Spectrofotometer (AAS) Bukhari, Imam; Hayati, Susru Hiyatun; Humayroh, Nisa; Ahzan, Sukainil; Prasetya, Dwi Sabda Budi
Lensa : Jurnal Kependidikan Fisika Vol 6, No 2: December 2018
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.215 KB)

[Title: Analysis of Copper (Cu) Mineral Content in the Mining Rock Structure using the Atomic Absorption Spectrophotometer (AAS) Method]. This research was conducted with the aim of: 1) Making chitosan based on local crab shells NTB, 2) Test the absorption of Au ions using chitosan with AAS. This research was carried out using the AAS method, namely by making chitosan from crab shells, Au stock solution which was prepared in the first stage was given chitosan powder and carried out absorption with varying times. Analysis of gold content in Au stocks that have been treated with AAS to determine the remaining Au content and Au absorbed.

Uji Mekanik Membran Kitosan Berbahan Dasar Cangkang Kepiting Lestari, Indah; Prasetya, Dwi Sabda Budi; Pangga, Dewi
Lensa : Jurnal Kependidikan Fisika Vol 6, No 1: June 2018
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (777.612 KB)

[Title: The Effect of Thinking Aloud Pair Problem Solving Learning Model Toward Student Physics Science Learning Outcomes]. This study aims to test mechanical on membrane composite membrane based crab shell and poly vinly Acetat (PVA). A mechanical test was performed to test the young modulus of the membrane in maintaining pore size using the "Tensilon" machine. The results show that chitosan / Poly Vinly Acetate composite membrane with preparation of comparison 25% -75%, 50% -50% and 75% -25%. For sample 25% -75% experience drying process faster than other sample. On the mechanical test of chitosan membrane / Poly Vinly Acetat showed the biggest value that is equal to 9.84 Mpa on comparison preparation 50% -50%. 25% -75% and 75% -25% preparations decreased by 4.68 MPa and 1.37Mpa.

Pengembangan Bata Ringan Berbahan Dasar Limbah Pengolahan Emas Tradisional dengan Penguat Eceng Gondok Pangga, Dwi; Prasetya, Dwi Sabda Budi; Ahzan, Sukainil
Lensa : Jurnal Kependidikan Fisika Vol 6, No 2: December 2018
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (422.456 KB)

[Title: Development of Lightweight Brick Based on Traditional Gold Processing Waste with Water Hyacinth Booster]. Research has been carried out on the manufacture of light brick made from gold processing waste with water hyacinth filler. The study was carried out by varying the direction of water hyacinth fiber as filler in light brick making. The direction of the filler is arranged in a horizontal, orthogonal and random direction. In each filler direction, the percentage variation of water hyacinth is arranged with the volume fraction 0%, 15%, 30%, 45%, 60%, from the total volume of the amount of light brick. The test results show that in the horizontal fiber direction the compressive strength is (2.43; 0.25; 0.54; 0.24; 0.50) MPa with a density (1.62; 1.34; 1.58; 1.42; 1.25) gr /cm3. In orthogonal direction the compressive strength was (2.43; 0.26; 0.80; 0.63; 0.77) MPa with density (1.62; 1.42; 1.49; 1.53; 1.42) gr/cm3. While in the random direction the compressive strength was (2.43; 0.73; 0.69; 0.59; 0.65) MPa with a density (1.62; 1.20; 1.41; 1.13; 1, 20) gr/cm3. From these data by comparing with previous studies, the most stable compressive strength and density values are formed in orthogonal directions. While the density value is most formed in random direction. In all directions the compressive strength and stable density were formed in the 60% volume of filler. The test results show that the light brick that is formed into the category is very light (entered in 0.6 - 1.6 gr/cm3 range) and floating in water, with medium compressive compressive strength.

Pembuatan Kitosan dari Cangkang Udang sebagai Adsorben Emas (Au) Jaya, Indra; Syaputra, Joni; Prasetya, Dwi Sabda Budi; Pangga, Dwi
Lensa : Jurnal Kependidikan Fisika Vol 5, No 2: December 2017
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (553.627 KB)

[Title: Making Chitosan From Shrimp Cup As Gold (Au) Adsorben]. This study aims to make chitosan from shrimp shell as golden adsorbent. Stages of chitosan preparation include demineralization stage using 1,5M HCL, deproteination stage using 3.5% NaOH to obtain chitin powder, then followed by chitin deacetylation stage using 60% NaOH to produce an anime that is chitosan. Subsequently, the chitosan obtained was characterized, analyzed functional group with FTIR and determined its adsorption capacity against Au metal ion, Au content in the sample before and after adsorption was measured using AAS. The results showed chitosan characterization as follows: rendeman 45.83%, have powder texture, white colour, odourless, have moisture content 1.55%, perfectly soluble in glacial acetic acid 2% and purple positive with ninhydrin solution showed chitin has turned into chitosan. Based on calculations from the results of the resulting chitosan FTIR data has a degree of deacetylation 71.17%. From the result of analysis by using AAS that chitosan obtained able to adsorb Au metal from concentration 8.55 ppm decrease until 5,09 ppm with adsorption percentage equal to 40.46%.

Pembuatan Filter Penangkap Emas (Au) Menggunakan Kitin dan Kitosan dari Cangkang Kepiting Anas, Ajwar; Ahzan, Sukainil; Prasetya, Dwi Sabda Budi
Lensa : Jurnal Kependidikan Fisika Vol 5, No 2: December 2017
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (649.358 KB)

[Title: Manufacture of Gold (Au) Capture Filters Using Chitin and Chitosan from Crab Shells]. This study aims to analyze the ratio of absorption capacity between chitin, chitosan and chitin-chitosan mixture from crab shells as a Gold catcher filter (Au). The preparation of chitin and chitosan from crab shells begins with demineralization using 1.5 M HCl, deproteination using 3.5% NaOH and deacetylation using 60% HCl. Chitosan that formed characterized and analyz ed its ability to absorb gold using AAS (Atomic Absorbsion Spectroscopy). The result of analysis using AAS showed that chitin was able to absorb 67.76%, chitin-chitosan mixture 83.57% and chitosan 87.82%. The result showed that chitosan had better absorption percentage to Gold (Au).

Co-Authors Agus Muliadi Ahmadi Ahmadi Ahzan, Sukainil Ahzan, Sukainil Anas, Ajwar Darti, Enti Yuyun Dharmawibawa, Iwan Dody Edy Supriyanto Fatwadi, Agus Firdaus, Laras Fitriani, Herdiyana Fuaddunazmi, Muhammad Gummah, Syifaul Habibi Habibi Harsojo Harsojo Hayati, Susru Hiyatun Humayroh, Nisa Hunaepi, Hunaepi I Wayan Karmana, I Wayan Imam Bukhari Indira Puteri Kinasih Indra Jaya Lovy Herayanti Mirawati, Baiq Muhammad Asy’ari Nugraheni, Ari Dwi Pangga, Dewi Pangga, Dwi Pangga, Dwi Prayogi, Saiful Priyambodo, Seto Restiani, Pete Era Safitri, Baiq Rina Amalia Sugianto, Iin Sukarma, I Ketut Sukroyanti, Baiq Azmi Sumbawaty, Nola Syaputra, Joni Taufik Samsuri Wathoni, Muhammad Munawir Wirawan Putrayadi, Wirawan

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