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All Journal APLIKA Jurnal Ilmu Pengetahuan dan Teknologi Reaktor Agrointek Journal of Degraded and Mining Lands Management Jurnal Sains & Teknologi Lingkungan Info-Teknik Jukung (Jurnal Teknik Lingkungan) Jurnal Chemurgy Martabe : Jurnal Pengabdian Kepada Masyarakat Gorontalo Journal of Forestry Research Progressive Physics Journal Jurnal Teknologi Lingkungan Jurnal Teknologi Lingkungan UNMUL
Edhi Sarwono
Prodi Teknik Lingkungan, Fakultas Teknik, Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Physics Social Sciences Other

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PEMANFAATAN JANJANG KOSONG SEBAGAI SUBSTITUSI PUPUK TANAMAN KELAPA SAWIT Sarwono, Edhi
APLIKA Jurnal Ilmu Pengetahuan dan Teknologi Vol 8, No 1 (2008): Februari 2008
Publisher : APLIKA Jurnal Ilmu Pengetahuan dan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1716.708 KB)

Abstract

Kemajuan teknologi dan industri dimanfaatkan manusia untuk meningkatkan kualitas hidupnya. Sudah terbukti kemajuan teknologi dan industri identik dengan kemajuan kualitas hidup manusia. Jadi kemajuan tersebut berdampak positif terhadap kualitas hidup manusia. Namun disisi lain manusia ketakutan akan pencemaran lingkungan yang ditimbulkannya. Hal ini dapat dipahami karena apabila lingkungan tercemar makan daya dukung alam bagi kehidupan manusia menjadi terganggu. Limbah yang dihasilkan dari suatu proses sedapat mungkin dikendalikan dari sumberdaya dengan cara mengurangi limbah yang dihasilkan, memanfaatkan kembali limbah dan mendaur ulang limbah. Limbah Tandan/janjang kosong merupakan limbah dengan volume yang paling banyak dari proses pengolahan Tandan Buah Segar (TBS) pada pabrik Kelapa Sawit, mencapai 21% dari TBS yang diolah. Limbah tersebut akan semakin meningkat seiring dengan peningkatan kapasitas produksi TBS yang diolah. Peningkatan volume limbah menimbulkan masalah baru terhadap lingkungan terutama munculnya pencemaran ke lingkungan dan pengolahan limbah yang cukup banyak menimbulkan biaya. Limbah tandan/janjang kosong yang bersifat organic mempunyai kandungan unsure Nitrogen 1.5%, phosfat 0.5%, Kalium7.3% dan magnesium 0.9% mempunyai potensi cukup besar untuk dapat dimanfaatkan sebagai substitusi pupuk dengan mengaplikasikan limbah di atas tanah sekitar gawangan tanaman kepala sawit. Pemanfaatan limbah tandan/janjang kosong kelapa sawit dapat mereduksi biaya pembelian pupuk organic sampai dengan 60% dengan hasil produksi Tandan Buah Segar (TBS) yang optimum. Dari pemanfaatan tersebut biaya produksi Tandan Buah Segar dapat dikurangi secara signifikan dan permasalahan lingkungan yang timbul pada pabrik kelapa sawit dapat diatasi tanpa mengeluarkan biaya bahkan dapat mendapatkan keuntungan dari segi biaya. Selain keuntungan biaya pengendalian limbah yang dihasilkan dari industry dapat ditanggulangi tanpa menimbulkan pencemaran bagi lingkungan karena limbah sudah dapat ditangani dari sumbernya.
EFFECT OF VARIATION OF MIXTURE LEACHATE WITH FLUID IN CATTLE RUMEN FORMATION OF BIOGAS Edhi Sarwono; Rika Endata; Budi Nining Widarti
Reaktor Volume 18 No. 3 September 2018
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (735.589 KB) | DOI: 10.14710/reaktor.18.03.171-175

Abstract

Abstract Composting in addition to producing fertilizers also produce leachate containing organic material, the leachate can pollute the environment if not managed properly. This study uses leachate as the main substance of biogas, mixed with cattle rumen fluid as the biostarter. This study aims to determine the optimal composition of biogas and to determine the effect of variations in the raw material mixture to the volume of biogas, volatile solid, temperature, pH, and flame. The study was conducted over 43 days using three types of batch digester with a capacity of 27 L. Comparison of a mixture consisting of leachate composting organic waste with cattle rumen fluid in each digester with variations in material composition of the mixture of 70%: 30%, 50%: 50%, 100%: 0%. During the study was observed it the volume of biogas daily, daily pH, temperature daily, weekly flame test and volatile solid test every 10 days. The volume of biogas using the principle of cylinder volume and volatile solid test using USEPA 1684 method. The results show the variation of 70%:30%, which resulted in a final volume of 2.78 L of gas, as well as a decrease in the volatile solid 23.29%, 12.82% increase in the pH. In a variation of 50%:50% produces a final volume of gas that is 0.537 L, as well as a decrease in volatile solid 42.35%, 12.82% increase in the pH. Variations 100%:0% produces a final volume of gas that is 1,247 L, a decrease in volatile solid 21.83%, 5.19% increase in the pH. All three digesters are at mesophilic temperatures and produce blue flame. Based on the results of this study concluded that the composition of the mixture that are in the most optimal is composition of 70%:30%. Keywords : biogas, rumen fluid beef, lindi organic waste composting
PEMANFAATAN ALUMINIUM DARI LIMBAH KALENG BEKAS SEBAGAI BAHAN BAKU KOAGULAN UNTUK PENGOLAHAN AIR ASAM TAMBANG Muhammad Busyairi; Edhi Sarwono; Arum Priharyati
Jurnal Sains & Teknologi Lingkungan Vol. 10 No. 1 (2018): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol10.iss1.art2

Abstract

Kaleng bekas merupakan salah satu sampah anorganik yang perlu daur ulang. Pemanfaatan kandungan aluminium pada kaleng menjadi koagulan merupakan alternatif pengelolaan sampah anorganik kaleng bekas. Air asam tambang atau Acid Mine Drainage merupakan air yang terbentuk di lokasi penambangan batubara dengan nilai pH yang rendah (pH<4). Koagulan yang berasal dari kaleng bekas dapat digunakan untuk pengolahan air asam tambang dengan parameter TSS, Fe, Mn, serta pH. Tujuan penelitian untuk mengetahui dosis optimum dan efisiensi dari koagulan KAl(SO4)2.12H2O pada pengolahan air asam tambang dengan parameter TSS, Fe, Mn dan pH. Metode penelitian yang digunakan pada penelitian ini adalah metode eksperimental deskriptif. Variabel bebas dalam penelitian ini adalah dosis koagulan yaitu 1 gr, 1,5 gr dan 2 gr, masing-masing dari koagulan dari kaleng bekas dan koagulan Aluminium Sulfat (koagulan komersial) sebagai pembanding. Variabel terikat adalah air asam tambang dengan parameter TSS, logam berat Besi (Fe) dan Mangan (Mn), serta pH. Variabel Kontrol Kaleng bekas yang digunakan dalam 1 kali pembuatan seberat 2 gr, pelarut KOH 10% sebanyak 20 ml, pereaksi H2SO4 7M sebanyak 12 ml, alkohol 50% sebanyak 20 ml. Pembuatan koagulan dengan pelarut KOH 10%, penambahan pereaksi H2SO4 7M terhadap jumlah K[Al(OH)4] dan percobaan dengan Jar Test secara Batch dengan pengadukan cepat 100 rpm selama 1 menit, dilanjutkan pengadukan lambat 50 rpm selama 20 menit dan proses sedimentasi selama 15 menit di kerucut imphof hingga flok-flok yang terbentuk mengendap. Kemudian pisahkan air limbah dengan dari flok-flok yang terbentuk untuk selanjutnya dianalisis pada laboratorium sesuai dengan parameter yang diamati. Konsentrasi awal limbah air asam tambang yaitu TSS=632 mg/l, Fe=22,04 mg/l dan Mn=19,10 mg/l serta pH=2,54. Hasil penelitian diperoleh hasil dosis optimum sebanyak 1,5 gram koagulan (KAl(SO4)2.12H2O) yang dari kaleng bekas dapat menurunkan TSS=237,2 mg/l (62,47%), logam Fe=19,15 mg/l (13,13%) dan Mn=12,32 mg/l (35,49%) serta perubahan nilai pH menjadi= 2,62 (3,06%).
PEMANFAATAN SERBUK KAYU MERANTI MENJADI KARBON AKTIF UNTUK PENURUNAN KADAR BESI (Fe), MANGAN (Mn) DAN KONDISI pH PADA AIR ASAM TAMBANG Muhammad Busyairi; Firlina Firlina; Edhi Sarwono; Saryadi Saryadi
Jurnal Sains & Teknologi Lingkungan Vol. 11 No. 2 (2019): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol11.iss2.art1

Abstract

Serbuk kayu merupakan limbah dari hasil furnitur yang dapat dimanfaatkan menjadi bahan baku pembuatan adsorben karbon aktif. Air asam tambang atau Acid Mine Drainage merupakan air yang terbentuk di lokasi penambangan batubara dengan nilai pH yang rendah (pH
PENGARUH UKURAN BAHAN TERHADAP KOMPOS PADA PEMANFAATAN TANDAN KOSONG KELAPA SAWIT Budi Nining Widarti; Rifky Fitriadi Kasran; Edhi Sarwono
Jukung (Jurnal Teknik Lingkungan) Vol 1, No 1 (2015): September 2015
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jukung.v1i1.1034

Abstract

Tandan kosong kelapa sawit merupakan hasil sampingan dari pengolahan minyak  kelapa sawit. Sekam padi hasil samping dari  proses penggilingan beras yang akan menjadi limbah penggilingan. Tandan kosong kelapa sawit dan sekam padi merupakan limbah pemanfaatannya masih belum digunakan secara optimal. Tujuan penelitian ini untuk mengetahui pengaruh variasi ukuran tandan kosong terhadap nilai N, P, K, dan  C/N Rasio  kompos. Pada proses pengomposan ini, panambahan bahan dilakukan dengan variasi ukuran tandan kosong yaitu 5 dan 7,5 cm. Bahan penelitian berupa tandan kosong kelapa sawit, sekam padi dan kotoran sapi. Penelitian dilakukan selama 40 hari. Hasil penelitian menunjukkan bahwa kandungan unsur hara kompos, untuk kadar N sebesar 0,74% pada A1. Kadar P sebesar 0,17% pada B1. Kadar K sebesar 0,18% pada A2. Kadar C/N Rasio sebesar 17-20 pada semua komposter. Variasi ukuran TKKS sebesar 5 dan 7,5 cm pada pengomposan ini tidak berpengaruh terhadap kandungan unsur hara kompos, karena TKKS yang tidak mudah didegradasi oleh mikroorganisme.Kata kunci : Kompos, tandan kosong kelapa sawit, sekam padi.
PENGEMBANGAN BIOGAS SAMPAH PASAR Budi Nining Widarti; Gadis Dilasari; Edhi Sarwono
INFO-TEKNIK Vol 23, No 1 (2022): INFOTEKNIK VOL. 23 NO. 1 JULI 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v23i1.14136

Abstract

The traditional market has degradable waste, especially from the types of vegetables and left over food, the waste is not managed properly will potentially cause disease and poor aesthetics. There are various kinds of recycling and waste utilization efforts to reduce the potential negative impacts and produce a product that is more economically valuable so that the volume of waste does not continue to increase. Based on this consideration, it is necessary to study the generation and composition of waste as well as the potential for biogas from waste in Pasar Pagi Samarinda. The organic material of Pasar Pagi waste which is used as energy through the anaerobic digestion process can be considered from the quality of the biogas and the volume of biogas produced. The determination of waste generation and volume of waste is calculated based on the number of traders in the Pasar Pagi. The biogas production in the digester uses organic waste raw materials from Pasar Pagi and rumen liquid in a ratio of 1:1. The Calculation of gas formed was carried out using a U manometer, temperature measurements using a thermometer, pH measurements using a pH meter were carried out every day and VS measurements were carried out every seven days. The mass of Pasar Pagi waste was 1.81 kg/trader/day and for the volume unit is 4.90 L/trader/day. The total composition of organic waste for vegetables, fruit, and food waste was 85.5%, organic waste in the form of cardboard or paper waste was 2.9%, the composition of plastic waste was 10.7% and metal was 0.9%. The pH of the digester during the formation of biogas shows an acidic condition, and the increase in pH that occurs is only able to reach pH 6 or close to neutral. The temperature in the digester at the beginning of the process tends to increase, then decreases and increases again at the end of the process, but does not affect the biogas production that is still ongoing. The addition of cow rumen contents was able to increase the volume of biogas formed in organic matter and the VS value decreased every week accompanied by the increase in biogas production. This shows that the organic waste in Pasar Pagi has the potential for biogas production.
DISPERSION OF SO2 AND NO2 EMITTED BY AUXILIARY BOILER OF PT KMI METHANOL INDUSTRIAL USING THE GAUSSIAN PLUM MODEL AERMOD IN BONTANG CITY EAST KALIMANTAN INDONESIA Edhi Sarwono; Eka Wijayanto; Hairul Huda; Reynaldi Ferdhani Harrits; Iqbal Fathur Zain
Jurnal Chemurgy Vol 6, No 2 (2022): Jurnal Chemurgy-Desember 2022
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v6i2.9560

Abstract

The petrochemical industry PT Kaltim Methanol Industri Bontang City, uses auxiliary boilers with natural gas fuel and is connected to the stack to emit pollutants into the atmosphere. The objectives of this study are SO2 modeling with a radius of 5 kilometers and modeling of NO2 with a radius of 10 kilometers from the emission source. Modeling using AERMOD software, AERMET Software, and Aermap ArcGIS Software.  The wind rose in the dominant research area from the southwest and northeast directions. Dispersion of SO2 and NO2 decreases according to the distance. The increase in concentration occurred in areas that experienced elevation increases, in Teluk Pandan District with a distance of about 10 kilometers northwest with an elevation of about 100 meters above sea level, and part of the West Bontang District with a distance of about 5 kilometers to the southwest with an elevation of about 90 meters above sea level. The maximum concentration of SO2 at the receptor was 6.2631 μg/m3 on hourly modeling, 0.58132 μg/m3 on modeling per 24 hours, and 0.0317 μg/m3 on annual modeling. The maximum NO2 concentration at the receptor was 1.96781 μg/m3 on hourly modeling, 0.18089 μg/m3 on hourly modeling, and 0.01002 μg/m3 on annual modeling. The distribution of pollutants based on hourly modeling per 24 hours is spreading in all directions and irregularly while for annual modeling it tends to spread towards the southwest and northeast according to the wind rose.Keywords: AERMOD, Emissions, Modeling, Air Dispersion, Auxiliary boiler 
Aplikasi Metode Spektrofotometri pada Klasifikasi Gas Karbon Monoksida (CO) dan Uap Bahan Bakar Petrodiesel (C14H30) Happy Nugroho; Edhi Sarwono; Aditya Rinaldi
Progressive Physics Journal Vol 1 No 1 (2020): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (753.713 KB) | DOI: 10.30872/ppj.v1i1.559

Abstract

Gas classification techniques are often found in several applied fields such as, detection of leak gas in gas cylinders, monitoring the threshold of harmful pollutant gases in the air, health diagnostics, early detection of fire hazards, and others. This requires measurement techniques that are adaptive and robust that can dynamically capture information on changes in vapor or gas compounds contained in free air. This research has been conducted to analyze and identify the types of gas compounds, namely CO and petrodiesel fuel vapor (C14H30). The design of this tool uses the principle of spectrophotometry and the calculation of Backprogation Neural Networks. The working principle is that light radiation in the Light Emitting Diode (LED) series, which has a wavelength range of 385nm to 1720nm, is absorbed to penetrate CO gas or petrodiesel fuel vapor (C14H30) that you want to identify. Light radiation that has passed through the gas / vapor compound was captured by the photodiode sensor. The emission of LED series light radiation produces different wavelength absorption patterns that will be processed by the Backprogation Neural network as an input signal in the identification and learning process. The results of this experiment show the success rate of the Backpropagation neural network in identifying the type of CO gas and petrodiesel fuel vapor (C14H30) is 80%.
PROSES PENGOMPOSAN TANDAN KOSONG KELAPA SAWIT (TKKS): ANALISIS FISIK DAN KENAMPAKAN ORGANISME Edhi Sarwono; Dwi Ermawati Rahayu; Weldy Dziya Millati; Sariyadi Sariyadi
AGROINTEK Vol 17, No 2 (2023)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v17i2.13935

Abstract

Oil Palm Empty Fruit Bunches (OPEFB) are among the processed palm oil's waste products. A tone of processed fresh oil palm fruit bunches produces 22-23% of OPEFB. Using OPEFB as mulch for the gate takes a long to decompose and triggers rhinoceros beetles as palm oil pests. Therefore, this study determined OPEFB composting process and the emerging organisms. The composting method involved open windrow with material mixture variation without leachate and EM4 (Effective microorganisms 4), with additional EM4, leachate, and leachate and EM4. OPEFB was chopped to 2-4cm, and the pieces were stacked with dimensions of (120cm x 80cm x 100cm). The results showed that adding activators in the composting process did not affect the organism’s appearance. Bioactivators visually affect the texture, smell, and material color. Furthermore, temperature, pH, and humidity had a similar trend in the composting process. The organisms that emerged from the composting process include maggots, ants, fungi, and millipedes
VARIASI OPTIMUM BIOGAS DARI LIMBAH CAIR KELAPA SAWIT Budi Nining Widarti; Ditha Dwijayanti; Edhi Sarwono
INFO-TEKNIK Vol 24, No 1 (2023): INFOTEKNIK VOL. 24 NO. 1 JULI 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v24i1.14960

Abstract

Biogas is one of the renewable energy sources produced from the process of methanogenesis. This research was conducted to determine the optimal composition of palm oil liquid waste (POME) and cow rumen fluid to produce biogas and to determine the effect of the composition of the mixture on the volatile solid value, pH, temperature, biogas production, and flame testing. This study used 3 trial batch type digesters with a capacity of 40 L and the raw material was a mixture of palm oil mill effluent (POME) and cow rumen fluid with a composition of 3 : 1 (R1), 1 : 1 (R2) and 4 : 1 ( R3). During the treatment, pH, temperature, VS and biogas were tested. This research was conducted for 49 days. The research was conducted for 49 days and it was found that the composition of the mixture of palm oil mill effluent (POME) with cow rumen fluid which was optimal for producing biogas was found in R1 with a mixture composition of POME: cow rumen fluid as 3:1. R1 produces a volume of biogas of 1.86 L, from the flame test it can ignite from the third to the seventh week. The composition of the different mixed ingredients for each digester has an influence on the value of VS, pH, temperature, biogas production, and flame tests. The effect was on the difference in VS values, pH, biogas production, and flame test results for each digester, but for the temperature parameter the effect was not too visible because the temperature ranges for the three digesters were both in the mesophilic temperature range, ranging from 27°C - 32°C.
Co-Authors Aditya Rinaldi Aipassa, Marlon Ivanhoe Apansyah, Apansyah Arum Priharyati Asghaf, Achmad Taufan Fatahillah Azis, Wahyu Arindra Budi Nining Widarti Budi Nining Widarti Buraka, Muhammad Iqbal Ditha Dwijayanti DUAKAJU, NELLA NAOMI Dwi Ermawati Rahayu Dyah Wahyu Wijayanti Eka Wijayanto Fahrizal Adnan Firlina Firlina Fitriadi Fitriadi Gadis Dilasari Hairul Huda Happy Nugroho Harjuni Hasan Ibrahim Ibrahim Iqbal Fathur Zain Jawatir Pardosi Kristiningrum, Rochadi Kristiningrum Lilantisa Angelina Simbolon Mellita Yessika, Al Muhammad Busyairi, Muhammad Muhammad Muadz Rafi Pratama, Muhammad Adhitiya Reynaldi Ferdhani Harrits Rika Endata Rizma Elvaryani Sariyadi Sariyadi Sariyadi, Sariyadi Saryadi Saryadi Weldy Dziya Millati Yunianto Setiawan, Yunianto Zain, Iqbal Fathur