scholarly journals Pelatihan Penggunaan Kompor Biomassa Guna Meningkatkan Produktifitas Pedanggang Gorengan

2021 ◽  
Vol 1 (2) ◽  
pp. 164-168
Author(s):  
Arif Setyo Nugroho ◽  
Didik Achadi W ◽  
Y Yulianto Kristianto
Keyword(s):  
Solid Waste ◽  
Community Service ◽  
Wood Waste ◽  
Biomass Waste ◽  
Fried Food ◽  
Operational Costs ◽  
Combustion Residue

The implementation of community service is carried out by providing solutions for fried food traders who sometimes experience problems, especially regarding the process of making merchandise for sale. The problem that arises is how to utilize solid waste from biomass in the form of wood as fuel when the process of making fried food, the hope is to reduce production operational costs and reduce waste around. The solution given is to use a biomass waste fuel stove, namely wood or charcoal, a stove with a gasification system. The utilization of wood waste and biomass as fuel can be a solution when LPG is scarce or the availability of wood waste is abundant. By calculation, using wood waste for cooking requires approximately 6 kg, economically it is cheaper because it utilizes biomass waste that is around. The disadvantage of using wood waste fuel is regarding the combustion residue, namely ash.

scholarly journals Implementasi Sains Teknologi Engineering dan Matematika (STEM) berbasis kewirausahaan budidaya lele dumbo dengan media bioflok dan pakan Bungkil Inti Sawit (BIS) di SMP Purnama Pekanbaru

2019 ◽  
Vol 1 ◽  
pp. 401-410
Author(s):  
Yustina Yustina ◽  
Nursal Nursal ◽  
Indra Suharman ◽  
Arif Riandra ◽  
Oky Priawan ◽  
...  
Keyword(s):  
Community Service ◽  
Palm Kernel ◽  
Project Based Learning ◽  
Fish Growth ◽  
Learning Activities ◽  
Economic Data ◽  
Growth Data ◽  
Operational Costs ◽  
Science Technology ◽  
And Mathematics

Community Service aims to determine the ability of students in the Implementation of Science Technology Engineering and Mathematics (STEM) Based on Entrepreneurship of Dumbo Catfish Cultivation with Bioflok and Feed Media made by Palm Kernel Oil (BIS). P2M activities are conducted at Pekanbaru Purnama Middle School through Extracurricular learning activities from March to June 2019. Participants are 20 students consisting of 4 groups. The method of using the STEM approach with the Project Based Learning (PjBL) model consists of 3 stages, namely: 1. Preparation: bioflok making training, feed making and seed procurement; 2. Implementation: treatment, maintenance, supervision and collection of growth data, operational costs: 3. Analysis of entrepreneurial economic data and STEM capabilities. Instrument for collecting growth data and operational costs using logbooks and observation sheets. Data on STEM and Entrepreneurship Capabilities using Student Worksheets. Data on fish growth and operational costs, then percentage, were scaled, tabulated and analyzed descriptively. The results of STEM abilities were obtained namely Science ability with a score of 80 (good category); Engineering 50 ability (less category), Technology ability with a score of 60 (sufficient category) and Mathematical ability with a score of 65 (sufficient category). Entrepreneurial economic analysis with a score of 75 (sufficient category) and 50% of participants get a profit of 30% from catfish production within 3 months.

scholarly journals The Production of Gaseous Biofuels Using Biomass Waste from Construction Sites in Recife, Brazil

Processes ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 457
Author(s):  
Sergio Peres ◽  
Eduardo Loureiro ◽  
Humberto Santos ◽  
Fabio Vanderley e Silva ◽  
Alexandre Gusmao
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Fossil Fuels ◽  
Residential Building ◽  
Wood Waste ◽  
Construction Sites ◽  
Biomass Waste ◽  
Gas Emissions ◽  
Gaseous Fuels ◽  
Lower Heating Value

Due to climate change problems caused by greenhouse gas emissions generated by fossil fuels and from waste disposition, fuel alternatives for power generation are being extensively researched. Currently, in Brazil and in many countries, wood waste is disposed in landfills. However, due to lignin, one of the major constituents of biomass, which prevents wood waste from suffering microbial degradation, there is no significant mass degradation, even over decades, when landfilled. Hence, landfilling is not a solution to discard wood waste. Hence, one of the solutions to get rid of the great amount of wood waste is to use it as feedstock in waste-to-electricity (WTE) projects. WTE projects are in high demand in the world, as they can replace fossil fuels and they reduce two major environmental problems (greenhouse gas emissions due to the use of fossil fuels and the accumulation of waste in landfills), while generating biofuels and/or electricity. One of the residues that can be used in WTE projects is biomass residue from construction sites (CCbiowaste). CCbiowaste could be converted into gaseous biofuels through pyrolysis or gasification. These gaseous biofuels can be used in Otto engines connected to an electricity generator (gensets) to produce electricity and/or heat (cogeneration applications). Hence, the objective of this research was to characterize (physically, chemically, and energetically) civil construction biomass wastes (CCbiowaste), produced in a residential building construction site in Recife, Brazil, and to use these wastes in a bench-scale gasifier to produce gaseous biofuels at the temperatures of 700 °C, 800 °C, and 900 °C. The gaseous fuels were collected in the gasifier and analyzed in a gas chromatograph equipped with a thermal conductivity detector (TCD) to determine their composition and heating values. The lower heating value (LHV) results varied from 8.07 MJ∙m−3 to 10.74 MJ∙m−3 for 700 °C to 900 °C gasification temperature. These gaseous fuels were tested in an adapted Otto cycle engine connected to an electricity generator to prove the feasibility of this application. The highest total energy per ton of biomass was obtained for mixed wood and Pinus at 900 °C, with approximately 13 GJ∙ton−1. Hence, the use of CCbiowaste can become an option for the reuse of wasted wood instead of simply dumping in a landfill.

scholarly journals Co-Pyrolysis of Biomass Solid Waste and Aquatic Plants

2021 ◽  
Author(s):  
Md. Emdadul Hoque ◽  
Fazlur Rashid
Keyword(s):  
Renewable Energy ◽  
Solid Waste ◽  
Aquatic Plants ◽  
Calorific Value ◽  
Biomass Waste ◽  
Pyrolysis Method ◽  
Bio Oil ◽  
Pyrolytic Oil ◽  
Pyrolysis Of Biomass ◽  
Conventional Fuel

Reduction of conventional fuel has encouraged to find new sources of renewable energy. Oil produced from the pyrolysis method using biomass is considered as an emerging source of renewable energy. Pyrolytic oil produced in pyrolysis needs to be upgraded to produce bio-oil that can be used with conventional fuel. However, pyrolytic oil contains high amounts of oxygen that lower the calorific value of fuel, creates corrosion, and makes the operation unstable. On the other hand, the up-gradation process of pyrolytic oil involves solvent and catalyst material that requires a high cost. In this regard, the co-pyrolysis method can be used to upgrade the pyrolytic oil where two or more feedstock materials are involved. The calorific value and oil yield in the co-pyrolysis method are higher than pyrolytic oil. Also, the upgraded oil in the co-pyrolysis method contains low water that can improve the fuel property. Therefore, the co-pyrolysis of biomass waste is an emerging source of energy. Among different biomasses, solid waste and aquatic plants are significantly used as feedstock in the co-pyrolysis method. As a consequence, pressure on conventional fuel can be reduced to fulfill the demand for global energy. Moreover, the associated operating and production cost of the co-pyrolysis method is comparatively low. This method also reduces environmental pollution.

scholarly journals Proses Gasifikasi Limbah Padat Aren Menggunakan Fixed-Bed Updraft Gasifier dengan Variasi Jenis Bahan

2018 ◽  
Vol 2 (2) ◽  
pp. 8
Author(s):  
Ucik Ika Fenti Styana ◽  
Muhammad Sigit Cahyono
Keyword(s):  
Solid Waste ◽  
Raw Materials ◽  
Fixed Bed ◽  
Proximate Analysis ◽  
Coconut Shell ◽  
Gas Content ◽  
Biomass Waste ◽  
Gasification Process ◽  
Palm Sugar ◽  
Materials Used

<p>Salah satu potensi sumber energi di Indonesia adalah limbah biomasa berupa limbah padat industri aren. Tujuan penelitian ini adalah untuk mengetahui pengaruh jenis bahan terhadap suhu reaktor dan efisiensi proses gasifikasi limbah padat aren. Bahan baku yang digunakan didapatkan dari Sentra Industri Tepung Aren di Dusun Daleman, Kecamatan Tulung, Kabupaten Klaten. Sebelum diproses bahan dikeringkan terlebih dahulu dengan dijemur di bawah sinar matahari selama sehari, kemudian dilakukan analisa proksimat. Variabel penelitian adalah jenis bahan berupa limbah padat aren murni, campuran limbah padat aren dan tempurung kelapa, serta tempurung kelapa murni. Proses gasifikasi diawali dengan memasukkan bahan ke dalam reaktor tipe <em>Fixed-bed Updraft Gasifier</em>, kemudian dinyalakan sampai keluar gas yang bisa terbakar dan diuji selama satu jam. Syn gas yang terbentuk dianalisa kandungan gasnya, kemudian dibakar untuk mengetahui efisiensinya. Hasil penelitian menunjukkan bahwa jenis bahan mempengaruhi suhu proses di dalam reaktor, dimana suhu optimal dicapai pada gasifikasi tempurung kelapa murni, yaitu proses pengeringan pada suhu 120 °C, pirolisis 340 °C, Reduksi 650 °C, dan oksidasi 721 °C. Gas yang dihasilkan tersebut dapat terbakar selama 15 menit, dibandingkan campuran limbah padat aren - tempurung yang terbakar 8 menit dan limbah padat aren murni yang hanya mampu terbakar 1 menit.</p><p><em>One of the potential energy sources in Indonesia is biomass waste in the form of palm sugar solid waste. The purpose of this study was to determine the effect of the type of material on the reactor temperature and the efficiency of the sugar palm solid waste gasification process. The raw materials used were obtained from the Palm Sugar Flour Industrial Center in Daleman Hamlet, Tulung District, Klaten Regency. Before processing the material is first dried by drying it in the sun for a day, then proximate analysis is done. The research variable is the type of material in the form of pure sugar palm solid waste, a mixture of palm sugar solid waste and coconut shell, and pure coconut shell. The gasification process is initiated by inserting the material into the Fixed-bed Updraft Gasifier type reactor, then igniting the flammable gas and testing it for one hour. The syn gas formed is analyzed for its gas content, then burned to find out its efficiency. The results showed that the type of material influences the process temperature inside the reactor, where the optimum temperature is achieved in pure coconut gas gasification, namely the drying process at 120 °C, pyrolysis 340 °C, Reduction 650 °C, and oxidation 721 °C. The resulting gas can burn for 15 minutes, compared to a mixture of aren solid waste - shells that burn for 8 minutes and pure aren solid waste that can only burn for 1 minute.</em></p>

scholarly journals Wood Waste Management: Sawdust as a Planting Media during the COVID-19 Pandemic at Sindangmekar Village, Dukupuntang Subdistrict, Cirebon District

2021 ◽  
Vol 5 (2) ◽  
pp. 256-260
Author(s):  
Arie Arie ◽  
Lili Amalia ◽  
Rosalia Rahayu
Keyword(s):  
Waste Management ◽  
Community Service ◽  
Test Scores ◽  
Fundamental Problem ◽  
Economic Value ◽  
Wood Waste ◽  
Wood Sawdust ◽  
Surrounding Environment ◽  
Post Test ◽  
Knowledge Levels

One of the growing industries in Indonesia is the woodworking industry. Wood waste is waste or parts of the wood that no longer has economic value but may still be used at different processes and times. The woodworking industry produces wood waste in 22% wood scraps, 8% wood chips, and 10% sawdust. The fundamental problem in the woodworking industry at Sindangmekar Village was the lack of understanding and practice in wood waste management. Through the socialization of wood waste management as planting media, community service aims to increase knowledge regarding wood waste management. In addition, it can improve practice to manage sawdust as a planting media. Furthermore, it has economic value and becomes one of the solutions to financial problems during the COVID-19 pandemic. The socialization presented materials related to wood waste management and practiced making planting media from sawdust. Thirty participants attended this activity. There was a significant increase in pre-and post-test scores after socialization. In conclusion, socialization regarding wood waste management increases knowledge levels in wood artisans and youth alliance at Sindangmekar Village. In addition, participants can manage wood sawdust as a planting medium. As a result, it can increase the selling value of wood waste, and the surrounding environment becomes clean and healthy.

scholarly journals Economic and Environmental Benefits from Municipal Solid Waste Recycling in the Murmansk Region

2021 ◽  
Vol 13 (19) ◽  
pp. 10927
Author(s):  
Anton Orlov ◽  
Elena Klyuchnikova ◽  
Anna Korppoo
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Large Scale ◽  
Ghg Emissions ◽  
Cost Effective ◽  
Waste Recycling ◽  
Environmental Benefits ◽  
Operational Costs ◽  
Murmansk Region

Most municipal solid waste (MSW) in Russia is disposed of in landfills, and only a relatively small fraction is recycled. The landfilling of waste leads to greenhouse gas (GHG) emissions, and air and groundwater pollution. However, recently, there have been some initiatives to improve waste management in the country. We assessed the economic and environmental benefits of waste recycling in the Murmansk region, in which a new waste recycling plant has been operating since 2019. We found that MSW recycling in the Murmansk region has induced a small, positive, job creation effect and could potentially lead to a non-negligible reduction in GHG emissions. Extrapolating the results from this case study to the country level, we found that recycling landfilled MSW in Russia could save approximately 154 million tons of GHG emissions in carbon dioxide equivalents annually, which is comparable to the total CO2 emissions from Algeria. The positive environmental and health-related impacts from the extensive implementation of MSW recycling in the country could be substantial. From this case study, we also learned that one of the biggest challenges for the waste recycling company in the Murmansk region is finding profitable markets for recycled materials. Moreover, due to the high investment and operational costs, recycling MSW led to a substantial increase in communal fees. However, there is potential to make waste recycling more cost effective. Most MSW in the Murmansk region is still separated at the recycling plant, while separating waste at the source could substantially reduce operational costs. Other challenges in the large-scale implementation of MSW recycling in Russia, such as a lack of investments and the population’s willingness to recycle waste, are also discussed.

scholarly journals Pelatihan pembuatan pupuk bokasi dari limbah kotoran ayam untuk meningkatkan kualitas air media budidaya lele Dumbo di Kelurahan Mentangor, Kecamatan Tenayan Raya, Kotamadya Pekanbaru Provinsi Riau

2020 ◽  
Vol 2 ◽  
pp. 184-191
Author(s):  
Mulyadi Mulyadi ◽  
Iesje Lukistyowati ◽  
Niken Ayu Pamukas ◽  
Adelina Adelina
Keyword(s):  
Community Service ◽  
Fish Farming ◽  
Chicken Manure ◽  
Fish Feed ◽  
Fish Production ◽  
Fish Food ◽  
Operational Costs ◽  
Service Activities ◽  
Farmer Groups

Chicken manure is an organic material that is abundant in Mentangor Village which has been used as fertilizer when fertilizing ponds, however the continuous use of fertilizers can reduce the quality of the bottom soil and pond water. One of the technological innovations to improve the quality of chicken manure is fermentation using EM4 to produce bokashi fertilizer. Bokashi fertilizer can increase the abundance of phytoplankton and zooplankton which are useful as natural fish food so that they can reduce the use of artificial feed, which in turn can reduce the operational costs of fish farming. Community service activities are carried out for the purpose of innovating knowledge and skills of fish farmers regarding techniques for making bokashi fertilizer from chicken manure and techniques for making fish feed in the form of pellets to increase cultivated fish production. This activity is carried out by lecturing, discussion and practice methods, which involve fish cultivator groups and Kukerta students. The results of community service activities show the high enthusiasm of farmers towards the activities carried out, resulting in increased knowledge, insight and skills of farmer groups. Thus, fish farming activities can be carried out by farmers by reducing operational costs for pond management and provision of feed so as to produce high fish production and increase the income and welfare of farmer groups.

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