POTENSI SUMBER BIOGAS BERBASIS TINJA PADA SUATU CLUSTER PERUMAHAN

2021 ◽  
Vol 4 (1) ◽  
pp. 33-39
Author(s):  
As Zhu Ra ◽  
Sudarti ◽  
Yushardi

Abstract: THE POTENTIAL OF BIOGAS SOURCES BASED ON REFERENCE IN A HOUSING CLUSTER. In the future there will be a shortage of fuel oil, as a result developed countries will begin to work on the management of use in replacing the problem of low fuel oil and shortage of LPJ gas in the future, one of which is to produce alternative energy using human waste as the basic material, usually called Bio- Gas / Bio-Fuel. However, the management system and processes still use septic tanks that absorb human waste. So the main material or human waste that can be made to generate alternative energy for general public needs, so that it is not wasted using existing disposal methods. This activity is an explanatory activity to describe the process of disposing of human waste in the process of the exhaust pipe equipment system for each house by accumulating it in the central disposal area for the fermentation process to produce methane gas which is converted into gas power to electricity. This invention is used to find out how to make biogas from human waste. The findings of the present invention show the addition of methane gas and a central septic-tank in several households. Key words: Energy, Alternative, Biogas, Human waste, Fermentation process, Biofuel Abstrak: Pada masa depan akan terjaddi kekurangan bahan bakar minyak, akibatnya wilayah negara maju memulai mengerjakan pengelolaan digunakan dalam menggantikan permasalahan sedikitnya BBM dan kekurangan gas LPJ pada masa depan nanti, salah satu yang dilakukan adalah memproduksi energi alternative dengan bahan dasar kotoran manusia biasanya dinamakan dengan Bio-Gas/Bio-Fuel. Akan tetapi, system pengelolaannya dan prosesnya masih menggunakan septik-tank yang meresap kotoran manusia. Jadi bahan utama atau limbah manusia yang sepatutnya dapat dibuat untuk penghasilan tenaga alternative untuk keperluan umum masyarakat, supaya tidak terbuang sia-sia menggunakan cara pembuangan yang ada. Kegiatan ini merupakan pada kegiatan eksplanatori berbuat untuk mendiskripsikan proses prosedur membuang kotoran manusia dalam proses system perlengkapan pipa pembuangan tiap-tiap rumah dengan dikomulatifkan di wardah pembuangan pusat untuk proses fermentasi untuk menghasilkan gas metana yang dirubah dalam tenaga gas ke listrik. Penemuan ini digunakan untuk mengetahui bagaimana cara membuat biogas dari kotoran manusia. Perolehan dari penemuan ini memperlihatkan penambahan gas metana dan sentral septik-tank pada beberapa rumah tangga. Kata kunci: Energi, Alternatif, Biogas, Kotoran manusia, Proses fermentasi, Biofuel

1994 ◽  
Vol 3 (1) ◽  
pp. 83-98
Author(s):  
Richard D. Lamm

The single greatest challenge facing managers in the developed countries of the world is to raise the productivity of knowledge and service workers. This challenge, which will dominate the management agenda for the next several decades, will ultimately determine the competitive performance of companies. Even more important, it will determine the very fabric of society and the quality of life of every industrialized nation. … Unless this challenge is met, the developed world will face increasing social tensions, increasing polarization, increasing radicalization, possibly even class war.


Author(s):  
Нalyna Umantsiv ◽  
Yevheniia Polovyk

Relevance of the research topic. At the present stage of transformational transformation of the economy, the issue with the use of the XBRL format in Ukraine, which is a prerequisite for successful interaction of enterprises in the global financial market and enhancing the competitiveness of domestic enterprises. Problem statement. The absence of the practice of applying taxonomy of financial statements in Ukraine, causes the relevance of this study. The developed countries of the world have already introduced this format, because it allows to make the reporting not only transparent and accessible to potential investors, but also convenient for analysis. Analysis of recent studies and publications. The process of functioning of the financial reporting system in the format XBRL is the newest, it was researched in works: Kuznetsova S. A., Borisenko A. A., Boyko R. V., Ostrovskaya O. A., Khatib E., Yassin M., Harber M., Marx B., De Jager P. and other. Highlighting unexplored parts of a common problem. Particular attention is needed to develop solutions that will minimize potential problems associated with the implementation and use of the XBRL format in Ukraine. Setting of the task, objectives of the research. Analyzing the implementation of XBRL format in Ukraine. Identifying prospects for using and setting the potential issues in the preparation of new financial statements using global experience. Research method or methodology. Dialectical methods of scientific cognition, collection and analysis of information and inductive method were used in the course of the research. Basic material presentation (results of work). The article defines the essence of the XBRL format, analyzes the stages of its implementation in Ukraine. Prospects and typical errors in the preparation of financial statements using the format have been identified. Measures have been developed to minimize the likelihood of occurrence and to overcome problems associated with its application, taking into account world experience. Areas of application of the results. The results of this study may be applied in the preparation of financial statements in accordance with the specified format. Conclusions to the article. All of the benefits of implementing XBRL far outweigh the impact of its application Its use in Ukraine shall allow reporting entities to properly prepare financial statements, adjust the requirement for duplicating financial statements while presenting to regulators, and help woo investors through formation of the qualitative financial statements.


2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
T. Pimonenko ◽  
O. Lyulyov ◽  
N. Letunovska ◽  
O. Lytvynenko ◽  
A. Nazarenko

The article aims to study current trends in the use of solar energy in Ukraine and the world as one of the main directions of decarbonization of the national economy. The authors systematize the prospects, advantages and disadvantages of the development of renewable energy sources. They conducted a comparative analysis of the "efficiency" of solar energy in some countries and Ukraine. The authors determined that the leading position in terms of the share of energy consumed from renewable sources is occupied by countries with developed economies due to the availability of effective motivational mechanisms. From the experience of EU countries, the authors concluded that renewable energy sources form a prerequisite for obtaining additional socio-economic and environmental effects. In the presence of favorable market conditions, renewable energy sources can increase the level of energy security in the country and its energy independence. The article analyzes the legislation of Ukraine on stimulating the development of alternative energy. The authors proposed two opposed ways of further developing solar energy in Ukraine. In particular, the country can implement methods of using alternative energy, which developed countries have successfully implemented. Another area involves increasing research and innovation in implementing, using, maintaining, and utilizing energy-generating devices from alternative energy sources. Despite the polarity of the proposed directions for further development of renewable energy, in both cases, the state policy on attracting investment and promoting the use of energy from alternative energy sources is crucial. In addition, the authors noted the benefits for society from the development and implementation of alternative energy sources. The scaling up and promotion of energy production technologies from alternative sources can reduce carbon emissions, which has been an urgent problem globally.


Brodogradnja ◽  
2021 ◽  
Vol 72 (3) ◽  
pp. 81-95
Author(s):  
Špiro Ivošević ◽  
◽  
Nataša Kovač ◽  
Nikola Momčilović ◽  
Goran Vukelić ◽  
...  

To ensure the better structural integrity and maximum safety of bulk carriers in the ship design phase, an appropriate corrosion margin is introduced by the classification societies, which should enable the exploitation of ships during the projected 25-year life cycle. The new Common Structural Rules introduce even higher corrosion margin value to ensure the structural integrity of the ship. This directly affects the increase in hull weight and thus the need for more total installed power and higher fuel consumption. Higher fuel consumption results in increased emissions which directly affects environmental pollution. For these reasons, efforts are being made to introduce alternative energy sources, cleaner fuel, ship weight reduction, and the overall economic efficiency of ships. Therefore, using experimental data collected on aging bulk carriers, the paper explores the corrosion margin reduction potential considering its impact on hull weight. Assuming that the corrosive processes occur after four years of operation, a linear model that describes the percentage of plate wear as a function of the as build-in the thickness of inner bottom plates (IBP) of fuel oil tanks (FOT) located on the double bottom of aging bulk carriers, is analyzed. Over the course of 25 years, the IBP segment was monitored on 36 different ships surveys. In this way, 520 input data describing the depth of corrosion were formed. At the same time, records were kept on the mean thickness of the original metal plate, which enabled systematization of the empirical database and grouping of measured values by intervals of original plate thicknesses, and simple conversion of corrosion depth into adequate percentage values. Depth corrosion percentages were represented by standard linear models known in the literature. Based on this analysis, representative numerical and graphical results were obtained. Conclusions from the paper can assist to optimize corrosion margin and the energy efficiency of future vessels.


Author(s):  
Muhammad Gifron ◽  
Nelmi Agustina ◽  
Doris Wela

Abstrak. Seiring dengan bertambahnya jumlah penduduk dunia, selalu diiringi oleh masalah limbah yang berasal dari sampah, baik sampah organik maupun non organik. Berbagai usaha untuk mengatasi masalah limbah tersebut secara berkesinambungan terus dilakukan , baik itu sampah-sampah anorganik seperti, berbahan plastik, karet dan lain-lain. Bisa dimanfaatkan kembali melalui daur ulang menjadi barang-barang kebutuhan harian. Sedangkan untuk sampah organik selain dimanfaatkan untuk pupuk, juga dapat digunakan sebagai bahan dasar pengisi baterai untuk menghasilkan energi alternatif yang ramah lingkungan. Terkhususnya untuk pemanfaatan limbah organik dalam pembuatan baterai telah dilakukan dengan beda potensial tertinggi yang dihasilkan adalah 1,67 volt. Dalam penelitian ini dilakukan modifikasi massa bahan pengisi baterai yang bersumber dari kulit durian yang yang diproses khususnya melalui pengeringan menggunakan oven serta dicampur dengan asam dan ada juga kulit durian yang dijemur selama 7 hari dengan massa kulit durian 3, 5, dan 10. Beda potensial baterai tertinggi yang didapatkan adalah 10 gram yaitu sebesar 1,67 volt. Selanjutnya baterai dengan massa 10 gram difabrikasi dalam jumlah tertentu yang digunakan untuk menyalakan LED. Baterai tersebut dirangkai baik secara seri maupun paralel untuk menghasilkan beda potensial yang bervariasi. Abstract. Along with the growing number of the world populations, there always followed by troubles waste derived from trash, organic waste, and non-organic waste. Many attempts to deal with an organic waste such as plastic waste, rubber, and etc, has been continued, so those waste can be recycled and reused for daily demand. On the other hand, organic waste can be used as fertilizer, and basic material for the battery that results an environmental friendly alternative energy. Especially to utilize the organic waste, the making of battery has been done that yields highest voltage, 1.67 volts. This research aims to modify the mass filler of the battery that obtained from durian skin which is processed by mixing it with acid and drying it using oven, there also other technique by drying the durian skin under the sun for about 7 days which varied masses of 3 gram, 5 gram, and 10 gram. The highest voltage that obtained is 1.67 volt using 10 gram durian skin. Further, the battery with 10 grams durian skin is then fabricated in a specified number to light up the LED. This battery placed either in serial or parallel circuit to obtain varied voltage.


2021 ◽  
Vol 894 (1) ◽  
pp. 012013
Author(s):  
M A Budihardjo ◽  
B S Ramadan ◽  
E Yohana ◽  
Syafrudin ◽  
F Rahmawati ◽  
...  

Abstract Municipal Solid Waste (MSW) treatment with anaerobic landfill bioreactor utilizes landfill as a place of biodegradation and produces methane gas which can be used as renewable alternative energy source. Anaerobic landfill bioreactor technology is a landfill development method that can increase waste degradation and increase biogas production. The increase of biogas and the removal of pollutants from leachate needs to pay attention to the factors that influence the success of anaerobic landfill bioreactor, including pH value, temperature, water content, and COD concentration after recirculation, and methane production. The relationship between these factors was discussed in depth in this paper. The method used is a narrative review where metadata is obtained from Google Scholar and Web of Science. This study explains the development of an anaerobic landfill bioreactor and conducts a synthesis for future research development plans by leachate recirculation.


2015 ◽  
Vol 747 ◽  
pp. 7-11
Author(s):  
Maryam Qays Oleiwi ◽  
Ayat Ali ◽  
Nangkula Utaberta ◽  
Mastor Surat

Green building has become an important issue among architects and urban planners due to the increment in global warming risks and climatic changes which influenced negatively on natural resources. It is also one of measures been put forward to alleviate the significant impacts of the influence of buildings on the environment, society and economy. There have been extensive studies on green buildings, as evidenced in the rapid growing number of papers been published in last decades. These studies have been conducted in both developed countries and developing countries, indicating this is a global issue. However, there is lack of extensive researches on the green buildings in Iraq that is crucial for the future exerts. This paper reports the definition of green building, the environmental, social and economical aspects of green building, and application of green building's principles in traditional housing in Iraq.


2002 ◽  
Vol 1 (2) ◽  
pp. 50-70 ◽  
Author(s):  
Jong-il Kim

The total factor productivity (TFP) growth controversy and the recent economic crisis raise many questions about the future growth of East Asia. Our analysis of historical experiences shows that low TFP growth in the East Asian newly industrialized economies (NIEs) is a natural pattern of growth at the initial phase of industrialization. Empirical evidence shows that East Asian NIEs in recent decades have been proceeding toward an efficiency-based growth as developed countries did some time ago. The history of Latin America, however, indicates that the reform of old-fashioned institutions is needed if East Asia is to follow the path of the developed countries.


2010 ◽  
Vol 365 (1554) ◽  
pp. 2853-2867 ◽  
Author(s):  
Philip K. Thornton

The livestock sector globally is highly dynamic. In developing countries, it is evolving in response to rapidly increasing demand for livestock products. In developed countries, demand for livestock products is stagnating, while many production systems are increasing their efficiency and environmental sustainability. Historical changes in the demand for livestock products have been largely driven by human population growth, income growth and urbanization and the production response in different livestock systems has been associated with science and technology as well as increases in animal numbers. In the future, production will increasingly be affected by competition for natural resources, particularly land and water, competition between food and feed and by the need to operate in a carbon-constrained economy. Developments in breeding, nutrition and animal health will continue to contribute to increasing potential production and further efficiency and genetic gains. Livestock production is likely to be increasingly affected by carbon constraints and environmental and animal welfare legislation. Demand for livestock products in the future could be heavily moderated by socio-economic factors such as human health concerns and changing socio-cultural values. There is considerable uncertainty as to how these factors will play out in different regions of the world in the coming decades.


2020 ◽  
Vol 15 (3) ◽  
pp. 191-199
Author(s):  
Srijana Koirala

Increasing population and rapid development in the planet earth have resulted in increasing demand of energy sources. Developed countries have adopted renewable sources in their policy for a sustainable future but, developing countries like Nepal are still lagging behind. Petroleum gas is used by all the city dwellers which is imported from neighboring countries and is not sustainable for a long term. Rapid urban growth has brought solid waste management and energy demand as a great challenge. Production of energy through biogas can help in management of bio-degradable waste as well as fulfill energy demands. This paper highlights study of large-scale biogas plant in and outside Nepal and explains how they have helped in managing waste, fulfilling energy demands and made positive impact in the community. This paper also suggests on possibilities of biogas as an alternative energy in developing scenario of Nepal.


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