scholarly journals Percobaan Produksi Biogas dari Kotoran Sapi dan Kotoran Ayam dengan Penambahan Enzim Papain

Author(s):  
Zulfikar Ali As ◽  
Hardiono Hardiono ◽  
Syarifudin A.

Production of Biogas from Cow Manure and Chicken Manure with Addition of Papain. Farms not only contribute positively to meet the demands of protein and increase incomes but also have a negative impact on the environment due to their wastes, especially manure. Biogas produced from the anaerobic decomposition of organic waste is a solution of manure utilization to be a fuel which is cheap and environmentally friendly. To accelerate the production of biogas it is needed a proteoloitik enzyme from papaya, which is called papain. This study aims to calculate the production of biogas from cow manure and chicken manure with addition of papain. The experiments were conducted in the digester made from plastic drums and observed for 30 days. The results showed that the papain influenced of production acceleration of biogas from cow manure. Comparison of biogas production in a week from cow manure: cow manure + 2 kgs of papaya pieces: cow manure + 4 kgs of papaya pieces are 202.7 liters: 263 liters: 332.3 liters. Cow manure did not need other ingredients except water with ratio 1: 1½ . Chicken manure had not been able to produce biogas because their CN ratio was not eligible, although the chaff had been added to increase the carbon content. Biogas from cow manure with addition of papain can be applied on a wider scale, while biogas from chicken manure requires other ingredients that biodegrade easier to add C content in the mixture. Keywords : biogas; cow manure; chicken manure; papain

2021 ◽  
Vol 896 (1) ◽  
pp. 012011
Author(s):  
M Taufiq ◽  
E Kusdiyantini ◽  
J Windarta

Abstract Cow manure, chicken manure, and organic waste are solid wastes that can be used as an energy source through a biogas digester. This study aims to determine the production of biogas from waste in a batch digester system. This research uses a digester in the form of a plastic drum with a capacity of 220 liters. 3 treatments were consisting of digester 1 containing cow manure and water (50:50), digester 2 in the form of a mixture of cow manure, chicken manure, and water (30:20:50), digester 3 containing cow manure, organic waste, and water (30:20:50). The digester is then closed tightly for 130 days. The results showed that the daily temperature ranged between 26°−31°C and the acidity (pH) 7-7.62. The biogas production of each digester was then carried out a flame test with a biogas stove. The results of the gas stove flame test show that digester 2 has a longer total flame period of 4302 seconds, then digester 1 has a total flame period of 4034 seconds and lastly, digester 3 has a total flame period of 2370 seconds.


2011 ◽  
Vol 236-238 ◽  
pp. 98-103
Author(s):  
Li Jun Shi ◽  
Li Tong Ban ◽  
Hui Fen Liu ◽  
Jian Chao Hao ◽  
Wei Yu Zhang

Dry anaerobic co-digestion of animal manure and straw was conducted to produce biogas. Startup characteristics and biogas production perform of dry digestion were studied, and the effect of operation temperature and incubation amount on dry digestion was also investigated. The study result showed that under the conditions of C/N=25-30, TS=20% and T=(36±1) °C,dry digestion can start up quickly with acclimated thickening sludge as incubation sludge. Compared to dry digestion of chicken manure and pig manure, dry digestion of cow manure proceeded steadily with high biogas yield. It is found that incubation is necessary in the process of dry digestion and biogas yield increases with more incubation amount. The appreciate incubation ratio is about 10%. Temperature change has apparent effect on biogas production, and it is suggested that mesophilic temperature should be chosen in the scaled project of dry digestion.


2021 ◽  
Vol 21 (5) ◽  
pp. 1221
Author(s):  
Fahmi Arifan ◽  
Abdullah Abdullah ◽  
Siswo Sumardiono

The biogas fermentation from animal manure and organic waste was investigated with a comparison percentage of raw material used inside the digester with the anaerobic digestion process. Animal manure consists of cow dung and chicken manure, while organic waste consists of tofu liquid waste and cabbage waste. This study used a batch process that was operated at 55 °C incubator temperature for 90 days. The results of experimental data were predicted with a modified Gompertz model and first-order kinetic model. The equation of the modified Gompertz model to predict biogas production was  with  is cumulative production of methane; P∞ = methane production potential; Rm = maximum specific speed methane production; λ = is lag phase period or minimum time to produce biogas; e = math constant (2.7182) and t = biogas production cumulative time. The equation first-order kinetic model was Y = Ym (1-exp(-k). The highest biogas yield was obtained by variable 3 in both kinetic studies compared to 70% cow dung, 15% chicken manure, and 15% tofu liquid waste. Gompertz's kinetic study predicted variable three would produce 3273.20 mL/g of total solid (TS). In comparison, the first-order kinetic model predicted that variable three would produce 3517.95 mL/(g Ts).


2020 ◽  
Vol 8 (2) ◽  
pp. 058
Author(s):  
Wivina Diah Ivontianti ◽  
Rinjani Ratih Rakasiwi ◽  
Dwi Asniawati

Abstract Organic waste can be processed into biogas through the anaerobic decomposition process. Anaerobic decomposition can be influenced by various factors including the addition of immobilization media. Cell immobilization is an attempt to increase the stability of the anaerobic process while reducing the potential for washout. Adding this solid material can increase reactor efficiency and can increase methane yield. The research on the addition of zeolite and PDAM sludge as immobilization media aims to find out how the effect of the addition of immobilized media, as well as the best composition between PDAM slurry and zeolite as immobilization media in the biogas production process from organic waste. The immobilization media used has three variations in the composition ratio between PDAM sludge and zeolites, namely 2:0, 2:1, 1:1 and a control reactor. Observation parameter are of VS, pH, concentration of methane gas and gas volume. Based on observations made, it was known that the addition of zeolite and sludge PDAM as a medium of immobilization in the biogas production process could increase biogas production and the concentration of methane produced. Of the three variations in the composition of the media used in this study, the composition ratio of 2: 1 gave the best biogas production results in the amount of 23.2844 L. As for the methane concentration, the overall reactor with the addition of immobilization media results in higher biogas concentrations and the reactor with the addition of media with a ratio of 2: 1 gave the largest methane concentration results. Keywords: biogas, immobilization, PDAM  Sludge, zeolite Abstrak Sampah organik pasar dapat diolah menjadi biogas melalui proses penguraian anaerobik. Penguraian anaerobik ini dapat dipengaruhi oleh berbagai faktor diantaranya penambahan media imobilisasi. Imobilisasi sel adalah salah satu usaha untuk meningkatkan stabilitas proses anaerob sekaligus mengurangi potensi washout. Penambahan material padatan ini dapat meningkatkan efisiensi reaktor dan dapat meningkatkan yield metana. Penelitian bertujuan untuk mengetahui bagaimana pengaruh penambahan media imobilisasi tersebut, serta komposisi terbaik antara lumpur limbah PDAM dan zeolit sebagai media imobilisasi pada proses produksi biogas dari limbah pasar. Media imobilisasi yang digunakan memiliki tiga variasi perbandingan komposisi antara lumpur PDAM dan zeolit, yaitu 2:0, 2:1,  1:1 dan  reaktor kontrol. Parameter pengamatan adalah  nilai VS, pH, konsentrasi gas metana, dan volume gas. Berdasarkan hasil pengamatan yang dilakukan diketahui bahwa penambahan zeolit dan lumpur PDAM sebagai media imobilisasi pada proses produksi biogas dapat meningkatkan produksi biogas serta konsentrasi metana yang dihasilkan. Dari tiga variasi perbandingan komposisi media yang digunakan dalam penelitian ini, perbandingan komposisi  2:1 memberikan hasil produksi biogas terbaik yaitu sebesar 23,2844 L. Sedangkan untuk konsentrasi metana, reaktor dengan penambahan media imobilisasi menghasilkan konsentrasi biogas yang  lebih tinggi dengan hasil terbaik yaitu variasi  perbandingan 2:1. Kata kunci: biogas, immobilisasi, lumpur PDAM, zeolit


2021 ◽  
Vol 9 (1) ◽  
pp. 233
Author(s):  
Megawati ◽  
Gusti Muhammad Hatta ◽  
Yudi FirmanuI Arifin

One of the organic waste that can be used and processed is Ieaf Iitter which is in the Lambung Mangkurat University. A potentiaI effort that can be made to maximize the use of this type oforganic waste is composting organic waste. The bioactivator used in this research is Iivestock manure (chicken manure and cow manure) combined with EM4 bioactivator. This study aims to anaIyze the best decomposition speed between activator chicken manure and cow manure with activator EM4 combination and to anaIyze the yieId of the fertiIizer obtained whether it has the quaIity of fertiIizer according to SNI. The resuIts of the study of the acceIerated decomposition of compost that were observed visuaIIy showed that the fastest rate of compost maturity occurred in treatment C (giving a combination of cow manure activator + EM4) which began to decompose at week 3, foIIowed by treatment B (giving chicken manure activator + EM4) which decomposed at week 4 and the Iatest in treatment A (controI) experienced decomposition at week 6. The resuIts of fertiIizer anaIysis showed that the compost produced aImost fuIfiIIed aII compost quaIity parameters based on SNI-19-7030-2004.


Author(s):  
Nely Ana Mufarida ◽  
Orisanto Darma Setiawan

Arya Jaya is a trading business that is engaged in making tofu. UD. Arya Jaya began operations in 2003, by Mrs. Siti Aisyah. UD. Arya Jaya is in Bukkolan Village RT.01 RW.01 Paowan Village / Panarukan District Situbondo Regency East Java Province. To run this business, Mrs. Siti Aisyah was assisted by 12 workers.         At UD. Arya Jaya, so far the tofu wastewater has never been used and treated but has been discharged into the river. As a result, various cases of environmental pollution that make a negative impact on public health occur a lot.         Community service activities are also intended to train and foster communities around the tofu industry and tofu entrepreneurs so that they have knowledge about the utilization of tofu liquid waste and can improve skills around 75% to process tofu liquid waste into biogas in processing tofu liquid waste into biogas so it is expected With good management of the waste produced by the tofu making industry, it will add value to the product and be more environmentally friendly. In addition, the management of tofu wastewater in a waste to product manner can efficiently cost the costs, materials used, and energy to make new products from waste raw materials. Besides that, entrepreneurs know that they will no longer be difficult to deal with their waste.         Based on the situation analysis above, the PKM Team together with UD. Arya Jaya seeks to overcome the problem referred to as "The Socialization of Tofu Liquid Waste Management (Whey Tofu) Becoming Biogas As an Alternative Energy Reserve in the Framework of Creating an Environmentally Friendly Industry". The activity that will be carried out has very good prospects and is expected to provide information about the processing of tofu industrial wastewater using anaerobic biodigester technology for biogas production. For tofu industry entrepreneurs, the processing of various wastes can be converted into biogas into added value. By paying attention to environmental problems caused by the disposal of potentially polluting waste, the existence of anaerobic biodigester technology can provide economic and ecological value while reducing the potential for disposal. In addition, it can reduce the effects of pollution resulting in the greenhouse effect.         The final target and output are the publication of scientific articles in journals or proceedings in national community service seminars and newspaper article publications in national newspapers.  


2021 ◽  
Vol 10 (3) ◽  
pp. 623-633
Author(s):  
Fahmi Arifan ◽  
Abdullah Abdullah ◽  
Siswo Sumardiono

One biomass form with a high potential to replace fossil fuels is biogas. Biogas yield production depends on the raw material or substrate used. This research was aimed to investigate abiogas production technique using an anaerobic digestion process based on a substrate mixture of a starter, cow dung, chicken manure, tofu liquid waste, and cabbage waste.The anaerobic digestion is a promised process to reduce waste while it is also producing renewable energy.Moreover, the process can digest high nutrients in the waste. The anaerobic digestion results showed that the combination producing the highest biogas amount was 200 mg starter mixed with a ratio of 70% cow dung, 15% chicken manure, and 15% tofu liquid waste. The larger the amount of cabbage waste, the lower the biogas production. The quadratic regression analysisand kinetics model based on the Gompertz equation was obtained for the variable with the highest yield, compared to 70% cow dung, 15% chicken manure, and 15% tofu liquid waste and the estimated kinetic parameters based on the Gompertz equations revealed that the value of P∞ = 2,795.142 mL/gr.Ts, Rm = 113, 983.777 mL/gr.Ts, and t = 10.2 days. The results also conluded that the use of  tofu liquid waste produced more biogas than cabbage waste. This study also successfully showed significant development in terms of the amount of biogas produced by adding organic waste to animal manure as the substrate used


BioResources ◽  
2017 ◽  
Vol 12 (4) ◽  
pp. 9383-9395
Author(s):  
Mohammad Al-Addous ◽  
Mohammad Alnaief ◽  
Christina Class ◽  
Abdullah Nsair ◽  
Kerstin Kuchta ◽  
...  

Using renewable energy sources provides a promising solution to minimize the overuse of conventional energy sources as well as to reduce pollution. Biogas technology is one solution that offers the conversion of waste streams to a renewable source of higher value. Anaerobic digestion of organic waste from industrial processes produces energy in the form of biogas, which has an advantage of preventing odor release, and has minimal pathogens. In this study, two different sources of bio-waste were investigated for their biogas potential, namely palm date waste and olive pomace. All of the samples produced biogas; however, the amount produced was only 20% to 40% of what conventional substrates typically produced. Producing biogas that uses only olive biomass offers a solution to the waste disposal problem, but it is not efficient for biogas production. For optimal heat utilization and maximizing biogas production, mixing of different feedstock was identified as a valid solution. Hence, a model of mixing other sources of bio-waste, such as chicken manure, can activate sludge and is proposed to boost the biogas production.


Author(s):  
Yani Purwanti ◽  
Haperidah Nunilahwati ◽  
Laili Nisfuriah ◽  
Fitri Yetty Zairani

The negative impact of using synthetic pesticides is harmful to health and damaging the environment. Pesticide residues can endanger health and reduce the competitiveness of agricultural products. The use of pesticides includes synthetic nematicides being suppressed or even avoided. One alternative to nematode control that is safe for health and environmentally friendly is bionematicide in organic chicken manure enriched with Trichoderma sp. Production of bio nematicides is an option to be applied by the farmer. This method of making bio nematicides uses simple technology, is practical, inexpensive, and easy to do at the farm level. In addition, the manufacture of this bionematicide will increase the benefits of chicken manure waste. This Community Service Activity that carried out in Pangkalan Gelebak Village, Rambutan District, Banyuasin Regency, on May 6, 2020. The result of this activity is that the farmers are very enthusiastic and motivated to make bionematicide. The bio nematicide produced is expected to control root-knot nematodes on cultivated plants to increase crop production and reduce dangerous synthetic pesticides. Bio nematicide uses are free from toxic pesticides, safe for health, more environmentally friendly, and will ultimately improve the welfare of farmers


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