scholarly journals Peningkatan Kualitas Biogas Melalui Proses Pemurnian Dengan Purifier Bertingkat Seri Menggunakan Adsorben Arang Aktif Dan Zeolit

2021 ◽  
Vol 14 (1) ◽  
pp. 1-14
Author(s):  
Abdul Mukhlis Ritonga ◽  
Masrukhi Masrukhi ◽  
Ahmad Mafrukhi
Keyword(s):  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Activated Charcoal ◽  
Oxygen Demand ◽  
Total Solid ◽  
Gas Production ◽  
Gas Content ◽  
Volatile Solid ◽  
Methane Gas

Abstrak. Biogas merupakan gas yang dihasilkan dari bahan organik melalui proses fermentasi. Energi yang terkandung dalam biogas tergantung dari konsentrasi metana (CH4). Semakin tinggi kandungan metana maka semakin besar kandungan energi pada biogas. Salah satu cara untuk meningkatkan kandungan gas metana pada biogas serta dapat menurunkan gas-gas pengotor seperti CO2, dan gas-gas lain yang tidak terpakai dengan pemurnian menggunakan purifier yang telah di isi adsorben, pada penelitian ini adsorben yang digunakan yaitu arang aktif dan zeolit. Variabel yang diukur dalam penelitian ini yaitu C/N rasio, pH, suhu, total solid (TS), volatile solid (VS), Biochemical Oxygen Demand (BOD) dan Chemical Oxygen Demand (COD) yang berpengaruh dalam produksi gas metan. Kadar  CH4 dan CO2 setelah dimurnikan, dan waktu optimal untuk proses pemurnian biogas, perlakuan yang diberikan menggunakan 3 waktu pengujian, yaitu 30, 60, dan 90 menit. Percobaan dilakukan pengulangan sebanyak tiga kali. Hasil penelitian menunjukkan bahwa rasio C/N sebesar 20,36 dengan suhu rata-rata 25,1oC dan pH rata-rata 6. Nilai BOD awal dan akhir masing-masing sejumlah 77800,86 mg/l dan 53002,42 mg/l dan COD awal dan akhir masing-masing sejumlah 59800 mg/l dan 36000 mg/l. TS dan VS masing masing mengalami penurunan sebesar 20,99% dan 17,93%. Penggunaan adsorben arang aktif dan zeolit dapat meningkatkan kandungan gas CH4 sebesar 136,5% dan menurunkan kandungan gas CO2 sebesar 64% pada biogas. Lama waktu pengujian mampu meningkatkan konsentrasi CH4 dan menurunkan kandungan gas CO2 dengan waktu paling optimal yaitu 30 menit.Increasing Quality Of Biogas With Purification Proses On Double Arranged Series Purifier Using Activated Charcoal And Zeolit AdsorbentAbstract. The quality of biogas is determined by the methane (CH4) content in the biogas. A good biogas is indicated by its high methane content. One way to increase the methane gas content in biogas is by purification using a series-level purifier that has been filled with adsorbents. In this study, the adsorbents used were activated charcoal and zeolite. The variables measured include CN ratio, pH, temperature, total solid (TS), volatile solid (VS), Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) which influential in methane gas production. CH4 and CO2 levels, before and after purification. Biogas was purified for a duration of 30, 60, 90 minutes and was repeated three times. The results showed that the C/N ratio was 20.36 with an average temperature of 25.1 °C and an average pH of 6. The initial and final BOD values were 77800.86 mg/l and 53002.42 mg/l and the initial and final COD values were 59800 mg/l and 36000 mg/l. TS and VS experienced a decrease of 20.99% and 17.93%. The use of activated charcoal and zeolite adsorbents was able to increase the CH4 gas content by 136.5% and reduce the CO2 gas content by 64%. The optimal purification time is 30 minutes.

scholarly journals Karakterisasi Biogas Hasil Pemurnian dengan Down-Up Purifier Termodifikasi

2021 ◽  
Vol 12 (1) ◽  
pp. 171
Author(s):  
Abdul Mukhlis Ritonga ◽  
Masrukhi Masrukhi ◽  
Azis Imam Safi’i
Keyword(s):  
Activated Charcoal ◽  
Anaerobic Bacteria ◽  
Oxygen Demand ◽  
Total Solid ◽  
Gas Content ◽  
Combustible Gas ◽  
Purification Time ◽  
Biogas Purification ◽  
Purification Plant

Biogas is a combustible gas produced from the fermentation process of organic materials by anaerobic bacteria. Biogas can be made by using a digester. A digester is a place where the process of decomposing organic matter by bacteria. The result of biogas still contains impurity gases, so that the quality of biogas is not good. Therefore, efforts to filter the gas are necessary. The purifier is a device to filter a gas. The use of purifiers in a series of digester installations aims to filter out unnecessary gases. The purpose of this research is to design a down-up purifier type biogas purification plant, to determine the changes in substrate characteristics during fermentation and conduct a gas quality test after purification. The results showed that the biogas installation type down-up purifier was designed and assembled using 150 liter drums for gas digesters and reservoirs, 1/2 inch hoses for connecting, 2 purifiers for purification and activated charcoal adsorbents. The C/N ratio is 36.37, an average substrate temperature of 28.62<sup>o</sup>C and an average pH of 5.9. Initial and final Biological Oxygen Demand (BOD) values are 960.12 mg/l and 9.312.53 mg/l. The initial and final Chemical Oxygen Demand (COD) values are 313,500.00 mg/l and 29,100.00 mg/l. Then Total Solid (TS) decreased by 1.45% and Volatile Solid (VS) increased by 0.21%. The use of activated charcoal adsorbents in the two purifiers can reduce CO<sub>2</sub> gas content by 83.79% in biogas with the most optimal purification time of 60 minutes.

scholarly journals PENGARUH PENAMBAHAN ZEOLIT ALAM TERMODIFIKASI SEBAGAI MEDIA IMOBILISASI BAKTERI TERHADAP DEKOMPOSISI MATERIAL ORGANIK SECARA ANAEROB

2017 ◽  
Vol 11 (1) ◽  
pp. 36
Author(s):  
Melly Mellyanawaty ◽  
Chandra Wahyu Purnomo ◽  
Wiratni Budhijanto
Keyword(s):  
Anaerobic Digestion ◽  
Chemical Oxygen Demand ◽  
Oxygen Demand ◽  
Total Solid ◽  
Volatile Solid ◽  
Spent Wash ◽  
Distillery Spent Wash ◽  
Soluble Chemical Oxygen Demand

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan zeolit alam termodifikasi sebagai media imobilisasi terhadap dekomposisi material organik pada proses anaerobic digestion. Modifikasi yang dilakukan adalah dengan cara mengimpregnasi ion besi(Fe2+)ke dalam zeolit yang telah dibentuk menjadi cincin Raschig. Impregnasi yang dilakukan adalah impregnasi basah. Dalam penelitian ini digunakan 3 variasi konsentrasi larutan Fe2+ yaitu 10 mg/L; 100 mg/L dan 2000 mg/L. Dari hasil impregnasi zeolit menggunakan ketiga konsentrasi tersebut diperoleh kadar Fe2+ yang terdeposit ke dalam zeolit berturut-turut: 0,0016 mgFe2+/gZeo; 0,0156 mgFe2+/gZeo; 0,3125 mgFe2+/gZeo dan 0 mgFe2+/gZeo digunakan sebagai kontrol. Zeolit termodifikasi Fe2+ kemudian ditambahkan ke dalam reaktor anaerobik yang dijalankan secara batch. Perbandingan volume media zeolit dan cairan adalah 1:1. Substrat yang digunakan berupa campuran limbah distillery spent wash dengan konsentrasi soluble Chemical Oxygen Demand (sCOD) 10.000 mg/L dan keluaran dari digester aktif kotoran sapi sebagai inokulum. Perbandingan volume distillery spent wash terhadap inokulum sebesar 2:1. Proses anaerobik dijalankan selama 28 hari.Jika dibandingkan dengan data Total Solid (TS) dan Volatile Solid (VS), hasil percobaan menunjukkan bahwa data analisis sCOD memberikan data yang lebih akurat dan konklusif untuk mengukur perubahan material organik dalam proses peruraian anaerobik menggunakan media imobilisasi. Dari keempat variasi kadar Fe2+ yang digunakan dalam penelitian ini, Fe2+ dengan kadar 0,0156 mgFe/gZeo memberikan efisiensi penurunan material organik (sCOD) tertinggi yaitu 66,73%. Sedangkan Fe2+ dengan kadar 0,3125 mgFe/gZeo mampu meningkatkan produksi biogas sebesar 43%. Namun secara keseluruhan proses peruraian anaerobik yang menggunakan zeolit termodifikasi Fe2+ menghasilkan biogas lebih banyak daripada kontrol (zeolit tanpa Fe2+).

scholarly journals Domestic wastewater treatment with household-scale constructed wetland system using water fern plant (Azolla pinnata)

2021 ◽  
Vol 894 (1) ◽  
pp. 012032
Author(s):  
A Magfhira ◽  
P Kinasih ◽  
D Salsabila ◽  
E Marchella ◽  
M F Fachrul
Keyword(s):  
Wastewater Treatment ◽  
Plant Growth ◽  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Aquatic Environment ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Azolla Pinnata ◽  
Domestic Wastewater Treatment

Abstract The purpose of writing this scientific paper is to analyze more deeply the management of the quality of the aquatic environment, especially regarding the treatment of domestic wastewater on a household scale. Domestic wastewater treatment with a constructed land system using Air Fern (Azolla pinnata) is expected to reduce concentration parameters such as BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), and Ammonia. The growth rate of Air Fern (Azolla pinnata) after acclimatization is quite good so that it can reduce BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand) and Ammonia, which are a source of nutrients for plant growth so that it can be used as a promising material for plant growth. It can be used as a promising material for plant growth domestic wastewater treatment. The analysis was carried out using the blended concept, a combination of virtual, online, and laboratory/field activities (offline/outside the network) while still paying attention to health protocols. The priority of this literature study research is to provide input for the government in the form of alternative solutions for managing the quality of the aquatic environment, especially regarding domestic wastewater treatment on a household scale. In addition, this research also supports the international Sustainable Development Goals (SDGs) program: Goal 6: Access to Clean Water and Sanitation” in point 3, namely “Improving water quality by reducing pollution, eliminating waste disposal, and minimizing the disposal of chemicals and hazardous materials, halving the proportion of untreated wastewater and substantially increasing recycling and safe reuse globally”. This research can contribute to appropriate technology in environmental biotechnology, namely wastewater treatment with a system that has simple technology, low cost, energy-saving and is environmentally friendly, which can create a level of hygiene and comfort for the community and maintain environmental sustainability future.

scholarly journals Pengolahan limbah cair industri pembekuan ikan kaca piring (Sillago sihama) menggunakan kombinasi bakteri Acinetobacter baumannii, Bacillus megaterium, Nitrococcus sp. dan Pseudomonas putida secara aerob

2021 ◽  
Vol 3 (1) ◽  
pp. 49
Author(s):  
Maghfirotin Marta Banin ◽  
Yahya Yahya ◽  
Happy Nursyam
Keyword(s):  
Chemical Oxygen Demand ◽  
Pseudomonas Putida ◽  
Acinetobacter Baumannii ◽  
Cold Storage ◽  
Bacillus Megaterium ◽  
Biochemical Oxygen Demand ◽  
Oxygen Demand ◽  
Total Solid ◽  
Sillago Sihama

Industri pembekuan ikan (cold storage) sangat besar mengkonsumsi air untuk proses pencucian bahan baku dan peralatan sehingga banyak menghasilkan limbah cair. Salah satu pengolahan limbah yaitu secara biologi dengan memanfaatkan aktivitas mikroorganisme untuk menurunkan substrat tertentu pada limbah. Bakteri yang digunakan dalam penelitian ini adalah Acinetobacter baumannii, Bacillus megaterium, Nitrococcus sp. dan Pseudomonas putida. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan kombinasi bakteri terhadap limbah cair industri pembekuan ikan kaca piring (Sillago sihama), dengan melihat perubahan nilai pH, TSS (Total Solid Suspended), amonia, minyak dan lemak, BOD (Biochemical Oxygen Demand) dan COD (Chemical Oxygen Demand). Penelitian ini menggunakan Rancangan Acak Kelompok dengan membandingkan kelompok perlakuan dengan kontrol. Dalam penelitian ini dilakukan pengamatan yaitu hari ke-0, hari ke-5 dan hari ke-10. Limbah cair yang berasal dari pabrik pembekuan ikan kaca piring (Sillago sihama) dari PT. Inti Luhur Fuja Abadi, kabupaten Pasuruan. Hasil dari penelitian ini perlakuan kombinasi bakteri Acinetobacter baumannii (A), Bacillus megaterium (B),, Nitrococcus sp. (N), dan Pseudomonas putida (P) memberikan pengaruh yang nyata pada semua parameter. Nilai yang dihasilkan telah memenuhi syarat baku mutu limbah cair pembekuan ikan pada peraturan Menteri Lingkungan Hidup nomor 5 tahun 2014. Nilai pH mengalami kenaikan dari kontrol, hari ke 5 sampai hari ke 10. Untuk kombinasi bakteri terbaik adalah A+P dengan nilai TSS sebesar 63,85 mg/L, kadar amoniak sebesar 1,02 mg/L, minyak dan lemak sebesar 1,95 mg/L, BOD sebesar 20,05 mg/L, dan COD sebesar 79,95 mg/L.

scholarly journals ‘Solar septic tank’: evaluation of innovative decentralized treatment of blackwater in developing countries

2020 ◽  
Vol 10 (4) ◽  
pp. 828-840
Author(s):  
Thammarat Koottatep ◽  
Stephanie Connelly ◽  
Tatchai Pussayanavin ◽  
Sopida Khamyai ◽  
Wattanapong Sangchun ◽  
...  
Keyword(s):  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Oxygen Demand ◽  
Total Solid ◽  
Septic Tank ◽  
Log Reduction ◽  
Removal Efficiencies ◽  
Decentralized Wastewater Treatment System ◽  
Long Term Performance ◽  
Term Performance

Abstract An innovative decentralized wastewater treatment system, namely the ‘Solar Septic Tank (SST)’, was constructed and tested at the household scale in a community in central Thailand. This study aimed to investigate the long-term performance of the SST in treating blackwater subject to year-round variation. Results of the 3-year continuous operation and monitoring showed significant improvement in the SST effluent quality with the potential to minimize environmental problems and public health risks. The SST achieved significantly higher total chemical oxygen demand, soluble chemical oxygen demand, total biochemical oxygen demand (TBOD), soluble biochemical oxygen demand, total kjeldahl nitrogen, total solid and total volatile solid removal efficiencies than a conventional septic tank (CST). The average TBOD concentration of the SST effluent was 150 ± 75 mg/L, meeting the Thai discharge standard (less than 200 mg/L of TBOD), while the average TBOD concentration of the CST was 240 ± 140 mg/L, higher than the Thai discharge standard. The Escherichia coli inactivation in the SST was 1–2 log reduction more than that in the CST. The removal efficiencies of TBOD and pathogens exhibited positive correlation with the ratios of the SST temperature.

scholarly journals Kajian Proses Fermentasi Limbah Sayur dan Buah Dari Pasar Tradisional Kintamani

2021 ◽  
Vol 9 (2) ◽  
pp. 268
Author(s):  
I Wayan Edy Wirawan ◽  
Yohanes Setiyo ◽  
Ida Ayu Gede Bintang Madrini
Keyword(s):  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Fermentation Process ◽  
Organic Fertilizer ◽  
Oxygen Demand ◽  
Liquid Fertilizer ◽  
Color Degree ◽  
Fruit Waste ◽  
Traditional Market

ABSTRAK Tujuan dari penelitian ini yakni sebagai berikut: (1) mengetahui pengaruh kombinasi antara limbah sayur dan limbah buah untuk dibuat pupuk organik cair, dan (2) mengetahui perlakuan yang terbaik pada proses fermentasi limbah sayur dan buah dari pasar tradisional  Penelitian ini menggunakan 4 perlakuan sebagai berikut : perlakuan A0 = sayur 100 %, A1 = sayur 90 % dan buah 10 %, perlakuan A2 = sayur 80 % dan buah 20 %, perlakuan A3 = sayur 70 dan buah 30 %. Campuran sayur dan buah dari setiap perlakuan adalah 10 kg dan dihancurkan dengan blender, hasil pengecilan ukuran kemudian di ditambahkan  dengan air 20 liter dan molase masing masing 1 kg . Sayur adalah sawi putih, kobis, sayur hijau,sedangkan buah : Tomat.Parameter yang diamati yaitu : perubahan warna, derajat keasaman (pH) dan Daya hantar listrik (EC), (TDS), BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), C-organik dan N-total. Secara umum, kualitas pupuk cair  yang dihasilkan dari keempat perlakukan sesuai dengan Standar SNI No.70/Permentan/SR.140/10/2011. ABSTRACT The objectives of this study were to: (1) determine the effect of a combination of waste vegetables and fruit waste to make liquid organic fertilizer, and (2) find out the best treatment in the fermentation process of vegetable and fruit waste from the traditional market of Kintamani. This study uses 4 treatments as follows: A0 treatment = 100% vegetables, A1 = 90% vegetables and 10% fruit, A2 treatment = 80% vegetables and 20% fruit, A3 treatment = 70 vegetables and 30% fruit. The mixture of vegetables and fruit from each treatment is 10 kg and crushed with a blender, the size reduction results are then added with 20 liters of water and molasses 1 kg each. Vegetables are chicory, cabbage, green vegetables, whole fruit: Tomatoes. The observed parameters are changes in color, degree of acidity (pH) and electrical conductivity (DHL), (TDS), BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), C-organic, and N-total. In general, the quality of liquid fertilizer produced from the four treatments is in accordance with SNI Standard No.70 / Permentan / SR.140 / 10/2011

scholarly journals Application of Ozone and Oxygen to Reduce Chemical Oxygen Demand and Hydrogen Sulfide from a Recovered Paper Processing Plant

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Patricia A. Terry
Keyword(s):  
Hydrogen Sulfide ◽  
Chemical Oxygen Demand ◽  
Contact Time ◽  
Oxygen Demand ◽  
Gas Production ◽  
Injection System ◽  
Processing Plant ◽  
Short Contact Time ◽  
Production Of Hydrogen ◽  
Fox River

A pilot study was performed at the Fox River Fiber recovered paper processing company in DePere, Wisconsin, to determine the extent to which injection of oxygen and ozone could reduce the high chemical oxygen demand, COD, in the effluent and the effectiveness of the ozone/oxygen stream in suppressing production of hydrogen sulfide gas in downstream sewage lines. Adaptive Ozone Solutions, LLC, supplied the oxygen/ozone generation and injection system. Samples were analyzed both before and after oxygen/ozone injection. Hydrogen sulfide gas was continuously monitored at sewer stations downstream of Fox River Fiber. Results showed that with a very short contact time, effluent COD was reduced by over 15%. A simple kinetic model predicts that a contact time of fewer than 30 minutes could reduce COD by as much as 60%. In addition, downstream hydrogen sulfide gas production in the sewage mains was also better controlled, such that costly Bioxide applications could be reduced.

scholarly journals BOD Pressure in the sustainability of the Citarum River

2018 ◽  
Vol 52 ◽  
pp. 00037
Author(s):  
Resha Ayu Putri Belinawati ◽  
Tri Edhi Budhi Soesilo ◽  
Herdis Herdiansyah ◽  
Intan Nurul Aini
Keyword(s):  
Local Government ◽  
Biochemical Oxygen Demand ◽  
Quantitative Method ◽  
Oxygen Demand ◽  
River Pollution ◽  
Measuring Instrument ◽  
The World ◽  
Polluted Rivers ◽  
The Impact

As one of the 10 most polluted rivers in the world, Citarum river pollution has become the world’s spotlight. The pollution that occurred along the Citarum River in West Java has been the concern of the local government. Pollution not only comes from a plant and household, but also from industries. In this study the authors use descriptive quantitative method, where researchers will describe and compare the existing variables to see the possibilities that arise. Variable used is the number of industries that exist and how the impact against BOD. Biochemical Oxygen Demand (BOD) is a measuring instrument that is widely used to see the quality of oxygen levels in the water. In this paper shows that there is a possibility if BOD increases if the number of industries increases.

scholarly journals PEMANFAATAN POTENSI GAS METANA DI PABRIK KELAPA SAWIT SEI SILAU, PTPN3, SUMATERA UTARA

2016 ◽  
Vol 11 (3) ◽  
pp. 459
Author(s):  
Irhan Febijanto
Keyword(s):  
Waste Water ◽  
Chemical Oxygen Demand ◽  
Palm Oil ◽  
Water Discharge ◽  
Oxygen Demand ◽  
Ghg Emission ◽  
Global Warming Impact ◽  
Methane Gas ◽  
Palm Oil Mill ◽  
Water Waste

Water waste in Palm Oil Mill (POM) is not effectively utilized yet. Before waste water discharge from POM, the waste water is processed by an aerobic treatment in several ponds to decrease the influence of organic matter. Methane gas generated in the anaerobic ponds is a Green Gas House giving a contribution to global warming impact. In Palm Oil Mill of Sei Silau located in North Sumatera, the potential generated methane gas in two anaerobic ponds has been investigated using measurement of Chemical Oxygen Demand (COD) of waste water in the sites. Based on the potential generated methane gas, the reduction of GHG emission is calculated, and the feasibility of the project as CDM project was evaluated.Keywords : Pabrik Kelapa Sawit, gas metana, gas rumah kaca, proyek CDM (CleanDevelopment Mechanism),, COD (Chemical Oxygen Demand)

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