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All Journal Hydrogen: Jurnal Kependidikan Kimia Lumbung Inovasi: Journal of Community Service
Dahlia Rosma Indah, Dahlia Rosma
Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Gadjah Mada, Sekip Utara Yogyakarta 55281 Indonesia
Humanities Chemistry Education Environmental Science Social Sciences

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Pemanfaatan Karbon Baggase Teraktivasi Untuk Menurunkan Kadar Logam Tembaga Pada Limbah Kerajinan Perak Di Lombok Tengah Indah, Dahlia Rosma; Safnowandi, Safnowandi
Hydrogen: Jurnal Kependidikan Kimia Vol 6, No 1 (2018): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (460.682 KB)

Abstract

Copper metal levels in silver craft waste can cause health problems in humansand pollute the surrounding environment. One method of processing wastewateris the adsorption technique using activated carbon dioxide. The first step is tofirst determine the copper metal content in silver handicraft waste in UnggaVillage, Central Lombok. Furthermore, the waste water is contacted withactivated carbon. The production of activated bagasse carbon consists of threestages, namely first dehydration by burning bagasse until it turns into carbon,second carbonation which is heating temperature of 500ºC, carbon yields of 100-200 mesh and third, activation by immersing 50 grams of carbon in 500 mL 15%NaOH during 12 hours. After that the carbon is dried at 110ºC and finally heatedat 500ºC for 1 hour. The bagasse carbon that has been made is put into 25 mL ofwaste water sample with a mass of 2 grams of adsorbent. The sample is thenstirred at various contact times of 30, 60, 90, 120 and 150 minutes at a speed of180 rpm using a batch system. The optimum contact time and concentration areused to calculate the efficiency of decreasing copper metal content by calculatingthe difference in copper metal content before adsorption and after adsorptionusing activated carbon dioxide. The concentration of all Cu (II) metals wasanalyzed using Atomic Absorption Spectrophotometer (AAS). From the researchit was found that the copper metal content in the sample was 14.5710 ppm. Theoptimum contact time for copper metal adsorption is at 120 minutes contact timewhich results in optimum adsorption efficiency in ferrous metals, namely84.88%.
Upaya Menurunkan Kadar Ion Logam Besi Pada Air Sumur Dengan Memanfaatkan Arang Ampas Tebu Indah, Dahlia Rosma; Hendrawani, Hendrawani
Hydrogen: Jurnal Kependidikan Kimia Vol 5, No 2 (2017): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (555.516 KB) | DOI: 10.33394/hjkk.v5i2.1590

Abstract

The levels of iron metal ions in the well water can cause health problems,causing the yellow color on the walls of the bathroom tub and the yellowspots on the clothes. One way of water treatment is by adsorption techniqueusing charcoal from bagasse. The first step is to first determine the level ofiron metal ions in the well water in the village of Palempat, BatulayarDistrict, West Lombok. Furthermore, the well water is contacted with sugarcane bagasse. The manufacture of amphibians includes the samplepreparation process, wash with water, drying in the sun, and the refining at250ºC for 2.5 hours then sieved. The sugarcane bagasse that has been putinto 100mLsampelair well with a mass of 2 grams of adsorbent. Samples werethen stirred at contact time variations of 30, 60, 90, 120 and 150 minutes at180 rpm using a batch system. The best contact time used to calculate theefficiency of decreasing iron metal ion content is by calculating the differenceof iron metal ions before adsorption and after adsorption using charcoal ofbagasse. From the research, it was found that iron metal ion content in thesample was 0.1683 ppm. The optimum contact time on iron metal ionadsorption is at 120 minutes contact resulting in optimum adsorptionefficiency in iron metal that is 65.83%.
KARAKTERISASI KARBON BAGGASE TERAKTIVASI DAN APLIKASINYA UNTUK ADSORPSI LOGAM TEMBAGA Indah, Dahlia Rosma; Safnowandi, Safnowandi
Hydrogen: Jurnal Kependidikan Kimia Vol 7, No 2 (2019): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v7i2.1912

Abstract

Bagasse is waste produced from the process of milking or extracting sugarcane stems. Baggase can be optimized in terms of use value and its function as an alternative technology, namely as an active carbon manufacturing material that can be used as a copper (Cu) adsorbent. This study discusses the functional baggase activated carbon group of phosphoric acid and nitric acid using Fourier Transform Infra Red (FTIR) and its application as a copper metal adsorbent in silver craft waste in Ungga Village, Praya, Central Lombok. The production of activated bagasse carbon consists of three stages, namely first dehydration by burning bagasse until it turns into carbon, the second carbonation is heating at 500ºC, carbon results are 100-200 mesh and third, activation by soaking 50 grams of carbon in 500 mL of 20% phosphoric acid and 20% nitric acid for 12 hours. After that the carbon is dried at 110ºC and finally heated at 500ºC for 1 hour. The bagasse carbon that has been made is put into 25 mL of waste water sample with a mass of 2 grams of adsorbent. Samples were then stirred at 30, 60, 90, 120 and 150 minutes contact time variations at a speed of 180 rpm using a batch system. The optimum contact time that is used to calculate the efficiency of copper metal content reduction is by calculating the difference in the metal content of copper metal before it is adsorbed and after it is adsorbed using activated carbon baggase. Concentrations of all copper metals were analyzed using Atomic Absorption Spectrophotometer (AAS). Identification using FTIR spectrophotometer shows that carbon baggase in this study contains functional groups C = O, C = C, C-C, N = O, C = N, C-OH, CH2 and C-H. From the research it was found that the copper metal content in the sample was 14.5710 ppm. The optimum contact time on copper metal adsorption is at 120 minutes contact time which results in optimum adsorption efficiency on copper metal that is 84.88%. Activated carbon baggase is an effective adsorbent to reduce levels of copper metal in silver craft waste.
Pemberdayaan Masyarakat Tani Desa Pringgabaya Lombok Timur Melalui Budidaya Jamur Tiram Sebagai Upaya Menuju Desa Mandiri Pahriah, Pahriah; Indah, Dahlia Rosma
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol 3, No 2: November 2018
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v3i2.449

Abstract

Kegiatan pengabdian ini bertujuan untuk memberdayakan beberapa kelompok masyarakat yang tidak produktif menjadi masyarakat yang mandiri secara ekonomi.Hasil kegiatan yang telah dicapai meliputi: (1) telah dilaksanakan proses seleksi dan rekruitmen peserta program KKN-PPM; (2) kegiatan pembekalan telah dilaksanakan sebanyak tiga tahap dengan tema pembekalan umum kegiatan KKN yang diberikan oleh pimpinan institut dan LPPM, dilanjutkan dengan pembekalan khusus tentang topik KKN-PPM yaitu biografi daerah sasaran KKN-PPM, pembuatan kumbung jamur, dan cara membuat budidaya jamur tiram; selanjutnya pelatihan budidaya jamur tiram;  (3) terbitnya buku petunjuk budidaya jamur yang bisa digunakan masyarakat sebagai panduan dalam budidaya jamur; (4) terlaksananya pelatihan budidaya jamur tiram; (5) terbentuknya duakumbung budidaya jamur tiram; (6) pemasaran dilaksanakan melalui penjualan langsung dan melalui media sosial.Empowerment of Farmers in Pringgabaya Village, Lombok Timur through Cultivating Oyster Mushrooms as Efforts Towards Independent VillagesAbstractThis service activity aims to empower several unproductive groups of people to become economically independent communities. The results of activities that have been achieved include: (1) a selection and recruitment process for participants in the KKN-PPM program has been carried out; (2) debriefing activities have been carried out in three stages with the theme of general debriefing for KKN activities provided by the institute and LPPM leaders, followed by special briefing on the KKN-PPM topic, namely biography of KKN-PPM target areas, making kumbung mushrooms, and how to make mushroom cultivation. oyster; then training in oyster mushroom cultivation; (3) publication of a manual for mushroom cultivation that can be used by the community as a guide in mushroom cultivation; (4) implementation of oyster mushroom cultivation training; (5) formation of two oyster mushroom cultivation basins; (6) marketing is carried out through direct sales and through social media.
Co-Authors Agus Kuncaka Hendrawani, Hendrawani Pahriah, Pahriah Roto Roto Safnowandi, Safnowandi Safnowandi, Safnowandi