Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
ABSTRAK
Lumpur biologis merupakan masalah yang timbul setelah proses pengolahan air, tetapi dapat menghasilkan energi jika diolah dengan proses AD. Potensi energi dari suatu substrat dapat diperkirakan dengan biochemical methane potential BMP . Pengukuran BMP dapat dilakukan dengan dua metode, yaitu gas chromatography GC dan GB-21. Tujuan penelitian ini adalah menganalisis potensi produksi gas metana dari substrat lumpur biologis 100 L100 , dan dengan penambahan ko-substrat sampah makanan dengan variasi 25 L75 dan 50 L50 volume, dan menganalisis perbedaan volume gas dari metode pengukuran GC dan GB-21. Parameter yang diiuji yaitu pH, TS, VS, COD, C/N, amonia, temperatur kering dan basah, tekanan udara dan uap air, kelembaban udara serta konsentrasi dan volume gas metana. Pengujian dilakukan selama 35 hari, yaitu dihentikan saat produksi gas metana kumulatif.

---

ABSTRAK
Waste activated sludge WAS is a problem that arises after water processing, but it can produce energy if processes by AD process. Energy potential of a substrate can be estimated by biochemical methane potential BMP . BMP measurement can be done by two methods, gas chromatography GC dan GB 21. The research objective was to analyze methane gas production potential from WAS 100 L100 , and with the addition of food waste as co substrate with variation 25 L75 and 50 L50 of the volume, and to analyze the differences between methane gas production of GC and GB 21 methods. The parameter examined are pH, TS, VS, COD, C N, ammonia, dry and wet temperature, air and vapor pressure, air humidity, and methane volume and concentration. The study was conducted for 35 days, stopped when cumulative methane gas production.

Abstrak :
Akumulasi minyak dan lemak yang mengeras diikuti oleh proses agregasi fisik dan reaksi kimia membentuk limbah yang disebut fatberg. Penggunaan fatberg memberikan peluang dalam penelitian untuk menemukan pengolahan terbarukan. Kurangnya penelitian terkait potensi energi fatberg telah mendorong eksperimen, terutama dengan perbedaan karakteristik fisik dan kimia fatberg dari studi di berbagai negara. Potensi energi bahan dengan kandungan organik tinggi memiliki potensi untuk menjadi substrat dalam proses Anaerobic Digestion (AD). Studi ini bertujuan untuk menganalisis volume biogas melalui nilai Biochemical Methane Potential (BMP) dari fatberg dalam jaringan distribusi air limbah domestik di daerah Setiabudi, Jakarta Selatan. Parameter yang diuji adalah pH, COD, TKN, VS, TS, suhu kering dan basah, tekanan dan uap air, kelembaban, konsentrasi, dan volume gas metana. Pengujian dilakukan menggunakan standar DIN selama 21 hari atau sampai akumulasi gas metana <1%/hari. Dalam penelitian ini, produksi biogas yang dihasilkan oleh variasi F2, F3, I1, I3, K2, K3 adalah 28,89; 22,42; 54,98; 89,62; 9,68; 195,39 ml CH4/g VS dan komposisi biogas yang ditentukan melalui pembacaan Gas Chromatography pada sampel Fatberg F2 terdiri dari 21,57% CH4 dan 78,43%CO2 sementara F3 terdiri dari 74,24%CH4 dan 25,76% CO2. Melalui nilai tersebut diperkirakan terdapat potensi energi dengan adanya komposisi gas metana melalui proses AD pada fatberg. Namun, jika dibandingkan dengan substrat lumpur aktif, limbah makanan, atau limbah hayati, signifikansi volume biogas dan konsentrasi metana belum dimaksimalkan. Untuk alasan ini, penelitian lebih lanjut diperlukan mengenai prapengolahan dan faktor-faktor yang mempengaruhi pembentukan biogas dari fatberg. ......The accumulation of hardened oils and fats followed by physical aggregation processes and chemical reactions forms waste called Fatberg. The use of Fatberg provides an opportunity in research to find renewable processing. The lack of research related to the energy potential of Fatberg has prompted experiments, especially with differences in the physical and chemical characteristics of Fatberg from studies in various countries. The energy potential of materials with high organic content has the potential to become a substrate in the Anaerobic Digestion (AD) process. This study aims to analyze the volume of biogas through the Biochemical Methane Potential (BMP) value of Fatberg in the domestic wastewater distribution network in the Setiabudi area, South Jakarta. The parameters tested were pH, COD, TKN, VS, TS, dry and wet temperature, pressure and water vapor, humidity, concentration, and volume of methane gas. Tests were carried out using DIN standards for 21 days or until the accumulation of methane gas < 1 %/day. In this study, the production of biogas produced by variants F2, F3, I1, I3, K2, K3 adalah 28,89; 22,42; 54,98; 89,62; 9,68; 195,39 ml CH4/g VS and biogas composition that was determined through Gas Chromatography readings from fatberg sample F2 consists of 21,57% CH4 and 78,43%CO2 while F3 consists of 74,24%CH4 and 25,76% CO2, which have the potential for the presence of methane gas in fatberg through anaerobic digestion. However, when compared with activated sludge substrates, food waste or biowaste, the significance of biogas volume and methane concentrations has not been maximized. For this reason, further research is needed regarding pre-treatment and factors that influence the formation of biogas from fatberg.

Abstrak :
[Sekitar 58,9% penduduk Indonesia bergantung pada tangki septik untuk mengolah tinja, namun 90% dari IPLT yang ada tidak beroperasi dengan baik. Anaerobic digestion (AD) adalah teknologi alternatif yang dapat menggantikan sistim saat ini, namun dibutuhkan inokulum yang sesuai agar dapat mengolah lumpur tinja. Penelitian ini bertujuan untuk mengetahui pengaruh pencampuran inokulum cairan rumen sapi (R) dan feses sapi (F) ke dalam lumpur tinja, dan penambahan co-substrat serbuk kayu (SK) dan daun kering (DK) terhadap pembentukan gas metana. Metode yang digunakan adalah biochemical methane potential (BMP). Batasan yang digunakan adalah massa inkubasi 28 hari, suhu inkubator 35oC, rasio substrat/inokulum (RSI) 1:2, sampel triplo, dan volume efektif 50%. Substrat lumpur tinja memiliki karakteristik COD 8,99 g/L, TS 8,1 g/L, VS 7,1 g/L, dan C/N 15,2. Hasil kombinasi substrat lumpur tinja dengan co-substrat SK dan DK menghasilkan nilai C/N 24,6 dan 16,8. Dari hasil uji BMP 28 hari, potensi gas metana RSK dan RDK adalah 60,5 dan 51,5 mLCH4/gVS. Kombinasi feses sapi, FSK dan FDK, menghasilkan 1,7 dan 37,7 mLCH4/gVS. Kesimpulan dari penelitian ini adalah inokulum (R) memiliki potensi menghasilkan gas metana lebih besar ketimbang (F), dan campuran co-substrat tidak memiliki pengaruh yang signifikan terhadap pembentukan gas metana. ......About 58,9% of Indonesian‟s people rely on septic tank to process fecal waste, but 90% of fecal treatment facilities doesn't function properly. Anaerobic Digestion (AD) is an alternative technology than could replace the existing system, but it requires a compatible inoculum to digest fecal sludge waste. This research aims to determine the effects of adding inoculum from cow's rumen fluid (R) and cow‟s feces (F) into fecal sludge, and also determine the effect of combination of sawdust (SK) and dried leaves (DK) to the methane gas production. The biochemical methane potential (BMP) method is used in this research. The research frameworks consist of 28 days incubation period, incubator temperature of 35oC, 1:2 substrate-to-inoculum ratios (RSI), triplicate sample and 50% effective volume. The sewage sludge characteristics are COD 8,99 g/L, TS 8,1 g/L, VS 7,1 g/L and C/N 15,2. The combination of fecal sludge substrate with sawdust co-substrate and dried leaves yields C/N value of 24,6 and 16,8 respectively. The results of this research are the combination of rumen with RSK and RDK yields 60,5 dan 51,5 mLCH4/gVS respectively. The combination of cow feces with FSK and FDK yields 1,7 dan 37,7 mLCH4/gVS. This experiment concluded that inoculum (R) has the highest methane production compare to (F) and the combination of co-substrate (SK) and (DK) has little influence in methane gas production., About 58,9% of Indonesian‟s people rely on septic tank to process fecal waste, but 90% of fecal treatment facilities doesn‟t function properly. Anaerobic Digestion (AD) is an alternative technology than could replace the existing system, but it requires a compatible inoculum to digest fecal sludge waste. This research aims to determine the effects of adding inoculum from cow‟s rumen fluid (R) and cow‟s feces (F) into fecal sludge, and also determine the effect of combination of sawdust (SK) and dried leaves (DK) to the methane gas production. The biochemical methane potential (BMP) method is used in this research. The research frameworks consist of 28 days incubation period, incubator temperature of 35oC, 1:2 substrate-to-inoculum ratios (RSI), triplicate sample and 50% effective volume. The sewage sludge characteristics are COD 8,99 g/L, TS 8,1 g/L, VS 7,1 g/L and C/N 15,2. The combination of fecal sludge substrate with sawdust co-substrate and dried leaves yields C/N value of 24,6 and 16,8 respectively. The results of this research are the combination of rumen with RSK and RDK yields 60,5 dan 51,5 mLCH4/gVS respectively. The combination of cow feces with FSK and FDK yields 1,7 dan 37,7 mLCH4/gVS. This experiment concluded that inoculum (R) has the highest methane production compare to (F) and the combination of co-substrate (SK) and (DK) has little influence in methane gas production.]

Abstrak :
Fasilitas pengolahan sampah sayur dan buah dengan metode Black Soldier Fly Larvae (BSFL) di Puspa Agro, Jawa Timur, dapat mereduksi sampah yang dibuang ke TPA hingga 50%. Namun fasilitas ini juga memproduksi limbah cairan hasil pengeringan dan residu dari proses pengolahan oleh larva lalat yang masih berpotensi untuk diolah. Penelitian ini bertujuan untuk mengetahui potensi pembentukan metana dari sampah sayur dan buah, cairan hasil pengeringan, dan residu menggunakan digestasi anaerobik. Penelitian dilakukan dengan metode BMP pada suhu 35oC selama 5 minggu dengan wadah botol 500 mL. Karakteristik sampel sampah sayur dan buah adalah TS 7,09%; VS 5,96%; dan C/N 11,89. Cairan hasil pengeringan TS 2,65%, VS 2,04%, dan C/N 4,40. Residu TS 3,62%, VS 3,32%, dan C/N 15,53. Cairan hasil pengeringan dan residu dicampur sehingga mendapatkan rasio kombinasi optimal yang mempertimbangkan kondisi C/N dan OL. Dari penelitian ini didapatkan pembentukan metana untuk sampah sayur dan buah 0,0217 L CH4/g VS; cairan hasil pengeringan 0,1467 L CH4/g VS; residu 0,0876 L CH4/g VS; Rasio VS cairan hasil pengeringan dan residu dengan nilai 1:7; 1:3; dan 1:1. Pembentukan metana oleh kombinasi rasio 1:7 0,1121 L CH4/g VS; rasio 1:3 0,0736 L CH4/g VS; dan rasio 1:1 0,1378 L CH4/g VS.

---

Fruit and vegetable waste processing facility using Black Soldier Fly Larvae (BSFL) methode in Puspa Agro, Jawa Timur, might be able to reduce 50% of waste to dump into landfill. The purpose of this research is to find out the methane yield potential of fruit and vegetable waste, fruit and vegetable juice, and residue using anaerobic digestion. Methode used in this research is BMP assay in 35oC temperature for 5 weeks with 500 mL bottle as vessel. Characteristifs of fruit and vegetable waste TS 7,09%; VS 5,96%; and C/N 11,89. Fruit and vegetable juice TS 2,65%, VS 2,04%, and C/N 4,40. Residue TS 3,62%, VS 3,32%, and C/N 15,53. Fruit and vegetable juice are combined into a solution, the optimum ratio of the solution considering C/N and OL factors. The optimum combination ratio in this research is 1:3. The result is potential of methane yield for fruit and vegetable waste 0,0217 L CH4/g VS; fruit and vegetable juice 0,1467 L CH4/g VS; residue 0,0876 L CH4/g VS; Combination ratio used is fruit and vegetable juice and residue with ratio 0,5:3,5; 1:3; and 2:2. Potential of methane yield for ratio 1:9 0,1121 L CH4/g VS; ratio 1:4 0,0736 L CH4/g VS; dan ratio 3:7 0,1378 L CH4/g VS.