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All Journal CHEMICA Jurnal Teknik Kimia Jurnal Dampak R.E.M (Rekyasa Energi Manufaktur) Jurnal Pro Food Jurnal Agrotek UMMat Jurnal Teknologi Pertanian Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Energi & Kelistrikan Diseminasi : Jurnal Pengabdian kepada Masyarakat Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Jurnal Teknologi Pertanian Gorontalo Jurnal Agro Dedikasi Masyarakat (JADM) Journal of Agritechnology and Food Processing Journal Of Human And Education (JAHE) Safari : Jurnal Pengabdian Masyarakat Indonesia Teknologi dan Industri Pertanian Indonesia Jurnal Teknologi Pangan dan Ilmu Pertanian Food and Agro-industry (FAGI) Journal Protech Biosystems Journal Food and Agro-industry (FAGI) Journal
Amrullah, Shafwan
Universitas Teknologi Sumbawa
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The Effect of Variations in Absorbents from Coconut Shell (Cocos Nucifera), Candlenut Shell (Aleurites Moluccanus), and Bidara Wood (Ziziphus Mauritiana) on the Characteristics of Mercury-Contaminated Wastewater Munawir, Arif; Amrullah, Shafwan
Protech Biosystems Journal Vol 5, No 1 (2025): Protech Biosystem Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v5i1.30016

Abstract

Illegal Gold Mining in several areas of West Nusa Tenggara, particularly in Sumbawa, has had negative impacts on the environment, such as natural damage and environmental pollution, including water contamination with mercury. This study aims to determine the effect of variations in absorbents from coconut shell, candlenut shell, and bidara wood on the physical and chemical characteristics of mining wastewater. The method used in this research is experimental, involving testing with filtration equipment. This study employs three treatments (absorbent variations) and three repetitions for each treatment. The results indicate that the use of activated carbon from coconut shell, candlenut shell, and bidara wood can affect the color, TDS, pH, and mercury content in mining wastewater. Among the three variations of activated carbon, the treatment with bidara wood activated carbon proved to be the most effective in clarifying water color with a score of 1.4 (very clear), reducing TDS by 3570 ppm, improving pH to 7.63, and decreasing mercury content in the water to 1.39 µg/L.
Kinetics of Urea Desorption off Sulfuric Acid Treated Carbon as Slow Release Fertilizer Rahayu, Theresia Evila Purwanti Sri; Amrullah, Shafwan
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 1 No. 01 (2019): JPPL, September 2019
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M), Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v1i01.44

Abstract

Urea is an important nitrogen source for plant but the price of urea fertilizer is relatively high. Urea uptake from urea manufacture waste water and its application as fertilizer is of high interest. The purpose of this study is to find out desorption ability of urea adsorbed porous carbon to be applied as fertilizer. Theoritically, urea released from porous carbon to environment has slower rate of mass transfer compare to conventional urea fertilizer because urea molecules in porous carbon has to pass through pores of carbon during its movement out of carbon. The porous carbon as adsorbent was made from coconut shell by pyrolysis, followed by sulfuric acid oxidation treatment Oxidation treatment carried out to extent adsorption capacity as well as to give additional sulfur nutrient when applied as fertilizer. Oxidation of carbon surface was performed using sulfuric acid (50%w) to soak porous carbon followed by heating at 90oC temperature for 2 hours. Desorption was conducted by placing porous carbon into beaker contain water and the raising of urea concentration in water recorded after 3,5,10, 30, and 60 minutes. Results reveal that the value of mass transfer coefficient (kc) and effective diffusivity (De) of urea desorption from porous carbon are 0,0293 – 0,0743 cm/s and 8 x 10-10 – 5 x 10-9 cm2/s with initial concentration of urea 1000, 2000, and 4000 mg/L. Release rate of urea from porous carbon and urea prill are 0,07 ppm/s and 1,23 ppm/s. Slower release rate of urea off porous carbon than urea prill shows the promising of urea recovery using porous carbon as slow release fertilizer.
Penjerapan Urea dengan Karbon Aktif dari Kayu Bakar Rahayu, Theresia Evila Purwanti Sri; Amrullah, Shafwan
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 2 No. 2 (2020): JPPL, September 2020
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M), Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v2i2.344

Abstract

Activated carbon is a universal adsorbent possessing extensive function in human life. Adsorbent has been used in waste effluent treatment to adsorb variety substances mainly in the form of liquid and gas pollutants, odor adsorbent, food preservative, nutrient carrier for plant, and as fuel cell. Adsorbent is become an interest for its highly adsorption capacity due to its abundant pores on its surface resulting wide surface area, its simple manufacturing, its easy finding raw materials-even from waste material, and its relatively low cost of manufacturing. The purpose of this study is to investigate adsorption capacity and urea uptake percentage of activated carbon made from pyrolyzed firewood. The results obtained in this research are activated carbon from pyrolyzed firewood has urea adsorption capacity 0,026 mg urea/g adsorbent at urea concentration of 500 mg/L as high as 479 mg urea/g adsorbent at urea concentration of 50000 mg/L and urea uptake percentage 8,8 % v/v. This result shows that activated carbon from pyrolyzed firewood has capability to adsorb urea molecules form aqueous solution and therefore pyrolyzed firewood can be an alternative of low cost adsorbent for treating wastewater containing urea.
Karakterisasi Alat Filtrasi Air Portable Berdasarkan Variasi Jumlah Absorber Karbon Aktif Limbah Tongkol Jagung Amrullah, Shafwan; Yanti, Sahri; As'urin, B.
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 6 No. 1 (2024): JPPL, Maret 2024
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M), Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v6i1.2183

Abstract

Sumbawa Regency is an area with soil water content containing lime. There was even lime blockage in the pipe holes used. So this research aims to create a portable filtration device that is cheap and efficient. The aim of this research is to characterize a portable water filtration device with an innovative absorber from corncob waste. The way this research works is the process of carbonizing corn cob waste and then activating it using 0.5 M NaOH for 24 hours. The absorber is then filled into a portable filter with dimensions of 50 cm in length and 4 inches in diameter. Filtration is carried out by flowing the collected well water into the water reservoir through a filter. Tests are carried out on water that has not been passed through a filter. After that, characterization was also carried out on the water that had passed through the filter. This characterization consists of Total Dispended Solid (TDS), Temperature, pH, Ca levels, and turbidity. The TDS value obtained decreases with the increasing number of absorbers used, namely from 203, 163, to 123 ppm. In addition, the temperature of the test water has almost no change. The resulting results were temperatures of 32, 33, and 32oC. The resulting pH value shows a decrease with an increase in the number of absorbers used, namely from 8.3; 7.7; 7.3. For turbidity, there was a decrease in the turbidity rate with an increase in the number of absorbers used, namely from 0.29 NTU to 0.3 NTU, and 0.28 NTU. In addition, CaCO3 levels decreased with an increase in the number of absorbers used, namely from 330 mg/l, 290 mg/l, and 240 mg/l. This value has met the threshold set by PMK No. 32 of 2017.
Karakterisasi Biodiesel dari Minyak Jelantah Menggunakan Katalis CaO/SiO2 dari Ekstrak Cangkang Telur dan Sekam Padi Amrullah, Shafwan; Oktaviananda, Cyrilla
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 6 No. 2 (2024): JPPL, September 2024
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M), Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v6i2.2418

Abstract

Renewable energy currently has great attention to world energy security. This is because fossil-based oil reserves are depleting. One alternative renewable energy is biodiesel. The current price of biodiesel production is still relatively expensive. So this study aims to make cheap biodiesel from used cooking oil. The catalyst used is CaO/SiO2 from egg shell waste and rice husks with a ratio of 50:50 w/w. The study was conducted by making catalysts with certain calcinations and characterizing the catalyst using the Surface Area Analyzer (SAA). Furthermore, biodiesel was made through esterification and transesterification processes. The CaO/SiO2 catalyst produced has a total surface area of ​​31.958 m2/gram. This value has met the standard for the surface area of ​​heterogeneous catalysts. The yield of biodiesel produced from the amount of catalyst 5; 10; and 15 grams were respectively 80%, 81%, and 86%. The density of biodiesel decreases with increasing levels of catalyst used. The density of biodiesel with catalyst amounts of 5, 10, and 15 grams were 890, 860, and 870 kg/m3, respectively. These values ​​have met SNI 7162:2015. The resulting kinematic viscosity decreased slightly with increasing amounts of catalyst used. The kinematic viscosity produced from catalyst amounts of 5; 10; and 15 grams were 3.1; 3.1; and 3.0 mm2/s, respectively. The FFA content of biodiesel tended to decrease with increasing amounts of catalyst used. The results of this study have not met the standard for FFA content of biodiesel, which is a maximum of 0.5 mg-KOH/g. The resulting FFA content was 0.64%, 0.65%, and 0.64%, respectively. Increasing the amount of catalyst used caused an increase in methyl ester stearate. The yields of methyl ester stearate produced based on the amount of catalyst 5, 10, and 15 grams were 80.3%; 91.4%; and 95.8%, respectively.
Pelatihan dan Sosialisasi Pembuatan Briket Tanpa Perekat di Desa Batu Bulan Kabupaten Sumbawa Menggunakan Mesin Cetak Semi Otomatis Amrullah, Shafwan; Dzil Ikram, Fadhli; Mikhratunnisa
Journal Of Human And Education (JAHE) Vol. 4 No. 6 (2024): Journal of Human And Education (JAHE)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v4i6.2065

Abstract

Briket memiliki keunggulan pembakaran tanpa asap dan durasi pembakaran yang lama, namun masyarakat masih kurang mengenal potensinya meski bahan bakunya melimpah dan berkualitas, seperti tongkol jagung. Untuk itu, Program Pengabdian Masyarakat Pemula ini bertujuan meningkatkan pemanfaatan limbah tongkol jagung dan ekonomi warga melalui pelatihan inovasi pembuatan briket. Program ini didanai oleh Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi Republik Indonesia dan bermitra dengan Kelompok Tani Ternak Bulan Suar di Dusun Batu Bulan, Sumbawa. Kegiatan dimulai dengan sosialisasi dan pelatihan, diikuti penerapan teknologi pencetakan briket semi otomatis tanpa perekat. Tim dosen dan mahasiswa juga memberikan pelatihan packing yang baik serta membangun platform e-commerce seperti Shopee dan Tokopedia untuk pemasaran. Pendampingan berkelanjutan dilakukan untuk perbaikan produksi dan pemasaran. Evaluasi pelatihan menunjukkan hasil positif, dengan 89% peserta puas, 90% merasa keterampilannya meningkat, 85% menilai pelatihan bermanfaat, 78% merasa pelatihan cukup mengatasi masalah, dan 89% menganggapnya relevan bagi kebijakan desa. Program ini berhasil meningkatkan kesadaran dan keterampilan masyarakat dalam pengolahan limbah menjadi produk bernilai ekonomis.
Analisis Kualitas Air Hasil Filtrasi Pengolahan Air Sekal Rumahan Berdasarkan Variasi Jumlah Arang Aktif Tempurung Kelapa (Cocos nucifera) Baiq As'urin; Amrullah, Shafwan
The Journal of Teknologi Pangan Vol 4 No 2 (2023): Peluang dan Tantangan Bahan Pengawet Makanan Alami dalam Memperpanjang Umur Simpa
Publisher : Faculty of Agriculture Science & Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/fagi.v4i2.3535

Abstract

Water is a material that is very necessary for living creatures, including humans, for daily survival. Water quality has several parameters to meet the requirements in accordance with the Republic of Indonesia Minister of Health Regulation NO 32 of 2017 so that the water is suitable and safe to use. Therefore, this research aims to characterize water from filtration results from home-scale water treatment plants using a variety of activated charcoal. The method used was a completely randomized design (CRD) with 4 treatments and 3 replications for each treatment. Based on the results of this research, variations in coconut shell activated charcoal have significantly different effects on water pH values, TDS, temperature, color and taste. Meanwhile, variations of activated charcoal did not differ significantly in the smell of water. The more variations of activated charcoal used and the longer the contact time, the better the quality of the water produced. The 700 gr activated charcoal variation is the best treatment by producing good water quality, safe and suitable for daily use.
Karakterisasi Mesin Perajang Porang (Amorphophallus meullleri) Berdasarkan Variasi Kecepatan Putaran Mesin dan Karakteristik Fisik Chip Porang Amrullah, Shafwan; Oktaviananda, Cyrilla; Asruldin, Asruldin
Jurnal Teknologi dan Industri Pertanian Indonesia Vol 15, No 2 (2023): Vol. (15) No. 2, Oktober 2023
Publisher : Agriculture Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/jtipi.v15i2.28162

Abstract

Porang tubers or in Latin Amorphallus meulleri is a type of tuber plant that is currently getting special attention from the world. Indonesia is one of the largest suppliers. The benefits of porang tubers, apart from being a supplier of starch, are also a source of medicine. Porang tubers are currently an Indonesian export commodity, but in the form of chips. The existence of this condition certainly forces these exporters to innovate to develop porang products in the form of chips. Therefore, in this study, the design and manufacture of a porang chopper machine into chips was carried out. The research continued by testing the characteristics of the machine by testing variations in engine speed (600, 700, and 800 rpm) on engine performance (cutting capacity, average thickness, percentage of damage, percentage of material left behind, and energy, and cost), one of which was marked with the machine's success in creating perfect porang chips based on export standards. The results of this study show the best average cutting capacity at 700 rpm is 917,113 kg/hour. The best average thickness is also at 700 rpm which is 5,9991 mm. The best percentage of damaged material is 600 rpm, which is the smallest with a value of 15,53%. The smallest amount of material left behind is 600 rpm, which is 7.2%. The lowest energy use in this variation is at 800 rpm, which is 0.346 mL, so the smallest cost in terms of fuel consumption is at 800 rpm, which is Rp. 3,460.
The effect of fermentation time on bioethanol levels from sugar cane (saccharum officinarum) Rizaldi, Lalu Heri; -, Mikratunnisa; Rinjani, Fitrina Utari; Amrullah, Shafwan
Jurnal Agrotek Ummat Vol 9, No 3 (2022): July
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i3.8106

Abstract

High energy consumption has an impact on the crisis caused by the decline in fossil energy reserves, so that Indonesia must have other energy alternatives in the form of biofuels, namely bioethanol. Knowing the effect of fermentation time on ethanol content, pH value, and brix content obtained from sugarcane juice is the purpose of this study. Using completely randomized design (CRD) with fermentation time factor. Research shows that fermentation time has an effect on ethanol content and acidity (pH), but has no effect on sugar content (brix). The best treatment was obtained at 6 days of fermentation with ethanol content of 7.67%, acidity (pH) 4.87%, and sugar content (brix) 6.33%. the ratio of high and low amount of ethanol produced is influenced by sugar consumption and yeast growth during the fermentation process.
The effect of sodium tripolyphosphate (STPP) concentration on the physical and chemical properties of modified yellow pumpkin starch (Modified cucurbita moschata starch) Faisal, Muhammad; Harianto, Andi; Hutasoit, Jenri Parlinggoman; Amrullah, Shafwan; Ardiansyah, Adi
Jurnal Agrotek Ummat Vol 10, No 3 (2023): Jurnal Agrotek Ummat
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v10i3.15817

Abstract

Yellow pumpkin is rich in vitamin A, carotene, and other essential nutrients, and has good durability. Apart from being a food and vegetable, pumpkin can be processed into semi-finished flour which becomes a processed product. This study aims to examine the effect of sodium tripolyphosphate (STPP) concentration on the physical and chemical properties of modified pumpkin starch (Modified cucurbita moschata starch). This study used an experimental method in the laboratory with a completely randomized design (CRD). The concentrations of STPP used in the treatments were 0.1%, 0.3%, 0.5%, 0.7%, and 0.9% of the weight of pumpkin starch. Each treatment was repeated 3 times, totaling 15 experimental units. Parameters observed included solubility, swelling power, moisture content, and starch content. Data were analyzed using analysis of variance (Anova) with a real level of 5% and Least Significance Different (LSD) further test. The results showed that STPP concentration had no significant effect on solubility and swelling power, but had a significant effect on the moisture content and starch content. The higher the STPP concentration, the higher the water content and the lower the starch content. The 0.9% STPP concentration had the highest moisture content (15.54%) and the 0.3% STPP concentration had the highest starch content (92.63%).  In order to be more complex, further research is carried out to test the parameters of phosphate content, ash content, amylose content, amylopectin content, color, PH, viscosity, anthocyanins, crude fiber, gelatinization, syneresis, antioxidants, polyphenols, reducing sugar, water holding capacity and oil holding capacity.
Co-Authors -, Mikratunnisa Abdurrahman Adi Ardiansyah Adi Ardiansyah, Adi Afgani, Chairul Anam Albar, Muhamad Anggita Dwi Puspita Ariskanopitasari Ariskanopitasari Ariskanopitasari, Ariskanopitasari As'urin, B. Asruldin, Asruldin Baiq As'urin Cyrilla Octaviananda Cyrilla Octaviananda Cyrilla Oktaviananda Deni Saputra Devi Tanggasari Dzil Ikram, Fadhli Evila Purwanti Sri Rahayu, Theresia Fadhli Dzil Ikram Fauzi Fakhriadi Fauzi Ghina Fadhilah Harianto, Andi Harits Fadhillah Immaduddin Harjito - Haryandi Haryandi Hutasoit, Jenri Parlinggoman Icha Ramadhani Kandoyo, Hendrafil Khusnul Khatimah Lukman Azis Manguntungi, Baso Maulana, Diana Rahayu Mega Trishuta Pathiassana Mikhratunnisa, Mikhratunnisa Muhamad Amin Muhammad Faisal Muliana Munawir, Arif Nadila, Nadila Nairfana, Ihlana Nurkholis Nurkholis Nurkholis - Nurkholis Nurkholis Oktaviananda, Cyrilla Radiansyah, Adi Rena Jayana Rinjani, Fitrina Utari Rizaldi, Lalu Heri Saputri, Dinar Suksmayu Sopyan Ali Rohman Sopyan Ali Rohman, Sopyan Ali Tanggasari, Devi Wahyuda Pratama Yanti, Sahri Yogi Wahyudi Zikri Aulia Zikri Aulia