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Rofiq Sunaryanto
Universitas Satya Negara Indonesia - USNI
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PEMANFAATAN LARVA LALAT BLACK SOLDIER FLY (Hermetia illucens) UNTUK PEMBUATAN PUPUK KOMPOS PADAT DAN PUPUK KOMPOS CAIR Prisilia Eka Kusumawati; Yusriani Sapta Dewi; Rofiq Sunaryanto
JURNAL TECHLINK Vol. 4 No. 1 (2020)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (402.684 KB) | DOI: 10.59134/jtnk.v4i1.60

Abstract

Composting is a form of decomposing organic matter with the help of organisms for bioconversion. The composting process requires several requirements to produce good quality compost, namely water content, pH and nutrient availability which is reflected in the C / N ratio. One type of insect larvae that can be used as an element of organism is the Black Soldier Fly (BSF) insect. The effort to recycle organic waste involving Black Soldier Fly (BSF) insect larvae is a new paradigm in the management of organic waste as decomposers or decomposers of organic waste. The result of the conversion of organic waste into solid compost fertilizer has a moisture content value that exceeds quality standards, C-organic value and C / N ratio which is below the quality standard, has a basic pH, and macro nutrients (N + P2O5 + K2O) located in the Permentan quality standard No. 261 / KPTS / SR.30 / M /4/2019, while for liquid compost fertilizer the value of C-organic and macro nutrients (N + P2O5 + K2O) is in Permentan quality standard No.261 / KPTS / SR.30 / M / 4/2019.
PENGEMBANGAN METODE ANALISIS BENZENA, TOLUENA, DAN XYLENA DALAM UDARA LINGKUNGAN KERJA MENGGUNAKAN IN HOUSE METODE DI PT UNILAB PERDANA Rendi Maulana; Rofiq Sunaryanto; Charles Situmorang
JURNAL TECHLINK Vol. 4 No. 1 (2020)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (190.789 KB) | DOI: 10.59134/jtnk.v4i1.61

Abstract

Benzene, Toluene and Xylene (BTX) compounds are compounds that have colorless and flammable characteristics, have a sweet odor with a low toxicity level, and are not soluble in water. This compound is often used as a solvent, extractor and as a chemical intermediary. The testing of BTX parameters in the working environment refers to the National Institute of Occupational Safety and Health (NIOSH) method number 1501. The method must be modified or developed in terms of equipment and instruments, due to looking at the condition of the materials and equipment in PT UP, i.e. using different columns, capillary columns, fused silica, 30m x 0.32-mm ID; 1-μm film 100% PEG becomes a Rtx-5MS column, and measurements using a FID detector become a Mass Spectrometer detector. And the solvent used is Carbon Disulfiida (CS2) to Methanol for gas chromatography. CS2 solvents are carcinogenic in the body so that they are harmful to human health. Besides being harmful to health, the waste produced by CS2 causes damage to the ozone layer on the earth's surface so that it can trigger global warming which will make the earth feel hot. In addition, CS2 solvents in Indonesia have begun to be reduced in production and will be illegal inthe future. Therefore, this method needs to be validated before doing a routine analysis so that the data obtained is valid.
EFEKTIVITAS CANGKANG BUAH PALA (Myristica fragrans) SEBAGAI KARBON AKTIF DALAM PENGOLAHAN AIR LIMBAH DOMESTIK Calvin Ronaldo Lekatompessy; Rofiq Sunaryanto; Nurhayati
JURNAL TECHLINK Vol. 6 No. 02 (2022)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (534.132 KB) | DOI: 10.59134/jtnk.v6i02.173

Abstract

Activated carbon is a material that contains high carbon elements and has a porous solid. The material used in this research is a nutmeg shell. The purpose of this study was to determine the effectiveness of activated charcoal from the shell of nutmeg (Myristica fragrans) as activated carbon in treating domestic wastewater. The variables studied to compare the effect of the wastewater absorption process are the concentration of the chemical NaOH 15% with temperature variations of 400ºC, 450ºC, and 500ºC. The best activation results were obtained at a temperature of 450ºC with a water content of 4.22%, an ash content of 10.24%, and iodinecontent of 577,395 mg/g. Activated charcoal parameters refer to SNI 06-3730-1995 regarding the quality standard requirements for activated charcoal. Wastewater management by activated charcoal from the shell of nutmeg (Myristica fragrans) with a concentration of 10, 15, 20 grams of activated charcoal. The best results were obtained by the concentration of activated charcoal 20 grams with a pH value of 9.0, TSS 0.663 mg/L, BOD 7.3 mg/L. For pH parameters, the effectiveness of activated charcoal is less than the maximum, and it does not meet quality standards.
BIOREMEDIASI HIDROKARBON MINYAK BUMI MENGGUNAKAN ISOLAT INDIGENOUS Rofiq Sunaryanto
PROSIDING SNITek Vol. 1 No. 01 (2017): SEMINAR NASIONAL INOVASI TEKHNOLOGI (SNITek)
Publisher : FT-TEKNIK USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/prosidng.v1i01.88

Abstract

Penentuan pengaruh konsentrasi minyak bumi dan jumlah sel Bacillus sp dalam proses bioremediasiminyak bumi telah dilakukan. Bioremediasi minyak bumi dilakukan dengan menggunakan kulturcair Bacillus sp secara batch dengan menggunakan flask 500mL. Konsentrasi hidrokarbon minyakbumi sebagai media sumber karbon digunakan sebagai variable perlakuan dengan perlakuankonsentrasi media awal 1000ppm, 3000ppm, dan 5000ppm. Pengaruh jumlah sel Bacillus sp dilakukan dengan menambahkan isolate Bacillus sp dengan kerapatan sel 5 x 104. Perlakuan penambahan volume kultur isolat Bacillus sp dilakukan pada volume 1 mL, 2mL, 4 mL, 6mL, dan 8 mL. Hasil penelitian menunjukkan bahwa Bacillus sp mampu mendegradasi minyak bumi dalam beberapa konsentrasi minyak bumi dan beberapa penambahan volume sel isolat. Kecepatan degradasi minyak bumi dipengaruhi oleh konsentrasi awal minyak bumi dan jumlah sel Bacillus sp yang ditambahkan. Semakin tinggi konsentrasi awal minyak bumi semakin lama proses degradasinya, dan semakin tinggi jumlah sel yang ditambahkan semakin cepat proses degradasinya.
Co-Authors Calvin Ronaldo Lekatompessy Charles Situmorang Nurhayati Nurhayati Prisilia Eka Kusumawati Rendi Maulana Yusriani Sapta Dewi