scholarly journals Potential of landfill biogas production for power generation in the Valencian Region (Spain)

Author(s):  
Carlos Vargas-Salgado ◽  
Jesús Aguila-León ◽  
Cristian Chiñas-Palacios ◽  
Lina Montuori

Landfills are one of the most common ways to dispose the solid urban waste in many countries due to their relatively simple technical requirements, operational costs and low investment. Moreover, biogas produced in landfills can be used as a renewable energy source for power generation. The Valencian Region is one of the largest solid urban waste producers in Spain, and therefore, it has an unexplored potential of landfill biogas production. This paper aims to estimate the potential of biogas landfill production for power generation in the Valencian Region. Statistical data from solid urban waste in landfills in the provinces of Alicante, Castellón, and Valencia was gathered. Then the potential of landfill biogas production was estimated by means of waste classification for each province. To provide information related to the use of landfill gas as an alternative source of energy,  results presented in this work show that the Valencian Region has an important potential to use landfill biogas from solid urban waste as a renewable source for power generation, and also provide information to the regional government, academic researches, policy makers and investors.

2018 ◽  
Vol 74 ◽  
pp. 323-334 ◽  
Author(s):  
Rodolfo M. Lima ◽  
Afonso H.M. Santos ◽  
Camilo R.S. Pereira ◽  
Bárbara K. Flauzino ◽  
Ana Cristina O.S. Pereira ◽  
...  

2019 ◽  
Vol 2 (1) ◽  
pp. 59-64
Author(s):  
Vincentius Vincentius ◽  
Evita H. Legowo ◽  
Irvan S. Kartawiria

Natural gas is a source of energy that comes from the earth which is depleting every day, an alternative source of energy is needed and one of the sources comes from biogas. There is an abundance of empty fruit bunch (EFB) that comes from palm oil plantation that can become a substrate for biogas production. A methodology of fermentation based on Verein Deutscher Ingenieure was used to utilize EFB as a substrate to produce biogas using biogas sludge and wastewater sludge as inoculum in wet fermentation process under mesophilic condition. Another optimization was done by adding a different water ratio to the inoculum mixture. In 20 days, an average of 6gr from 150gr of total EFB used in each sample was consumed by the microbes. The best result from 20 days of experiment with both biogas sludge and wastewater sludge as inoculum were the one added with 150gr of water that produced 2910ml and 2185ml of gas respectively. The highest CH 4 produced achieved from biogas sludge and wastewater sludge with an addition of 150gr of water to the inoculum were 27% and 22% CH 4 respectively. This shows that biogas sludge is better in term of volume of gas that is produced and CH percentage.


Author(s):  
Ahmad Saefudin

Dermolo as one of the villages in Kembang, Jepara, was ever hit by a conflict under a religious background. This friction involved Islamic and Christian groups. The dispute between the two groups increasingly culminated and seemed to have no end without the presence of the Nation. When the Regional Government of Jepara encountered a deadlock in breaking down this social conflict, the presence of a civil society organization was absolutely necessary. Lakpesdam NU Jepara since 2014 up to now has been trying to extinguish the fire of conflict in Dermolo which was initially triggered by disputes over the use of a worship place. Through a qualitative descriptive approach by utilizing the theory of conflict resolution and multicultural education, this paper finally succeeds in mapping the four multicultural education patterns used by Lakpesdam NU. Those are economic empowerment, religious approaches, empowering women, and empowering village cadres. The result of this academic discourse at the same time provides an alternative methodological offer that can be replicated by the stakeholders of the policy makers, for example the Regional Government and the relevant Regional Apparatus Organization. It can be used as a prototype for civil society organizations and peace activists in settling disputes wrapped in religious sentiment. This kind of inclusive pattern is considered quite successful as a conflict resolution strategy. Lakpesdam NU Jepara is the only institution that has the sympathy of the residents and the Dermolo Government, because it has contributed positively in restoring social harmony between Christian and Islam groups


Author(s):  
Bayu Panji Aji

The increasing rate of population growth and economic development occurring in the Curup Tengah District, Kab. Rejang Lebong, Bengkulu has led to the increasing waste generated. This can lead to declining environmental quality in the region, especially the situation is aggravated by inadequate handling and waste management systems are implemented by the Regional Government. Therefore, the required real effort in resolving the existing problems of waste such as by increasing community participation in waste management.  This study aims to determine how community participation in waste management in the Curup Tengah District. This participation may take the form pasrtisipasi community in local government policy decisions about waste management. Pasrtisipasi other forms of society can be seen by taking out the trash in the space provided, do not throw garbage in open dumps, as well as by not burning waste not in accordance with the technical requirements for waste management.  Results of analysis showed that public participation in policy-local government on waste management in the Curup Tengah District, Kab. Rejang Lebong, Bengkulu was well with the average value of respondents' answers to the questionnaire was 3.83, Participation of the community by removing trash in places that have been prescribed or provided in the Curup Tengah District, Kab. Rejang Lebong, Bengkulu was well with the average value of respondents' answers to the questionnaire was 3.91, with community participation does not throw garbage in the open field in the Curup Tengah District, Kab. Rejang Lebong, Bengkulu was well with the average value of respondents' answers to the questionnaire is 3.77, and the participation of the community by not burning waste not in accordance with technical requirements for waste management in the Curup Tengah District, Kab. Rejang Lebong, Bengkulu was well with the average value of respondents' answers to the questionnaire was 3.69. This shows that the general public's Participation in the Waste Management at Curup Tengah District, Kab. Rejang Lebong, Bengkulu was well with the average value of the respondent's answer was 3.8.  Keywords: participation, community, garbage


2016 ◽  
Vol 8 (10) ◽  
pp. 165 ◽  
Author(s):  
John Vourdoubas ◽  
Vasiliki K. Skoulou

<p>The landfill gas (LFG) produced from the existing landfill site in Heraklion city, Crete island, Greece, is not currently exploited to its full potential. It could however be exploited for power generation and/or combined heat and power (CHP) production in near future by fully unlocking its energy production potential of the gas generated from the landfill site. This gas (LFG) could feed a 1.6 MW<sub>el</sub> power plant corresponding to the 0.42% of the annually consumed electricity in Crete. The LFG utilization for power generation and CHP production has been studied, and the economics of three energy production scenarios have been calculated. An initial capital investment of 2.4 to 3.2 M €, with payback times (PBT) of approximately 3.5 to 6 years and Net Present Values (NPV) ranging between 2 to 6 M € have been calculated. These values prove the profitability of the attempt of bioenergy production from the biogas produced from the existing landfill site in Heraklion city, Crete. Based on the current economic situation of the country, any similar initiative could positively contribute to strengthening the economy of local community and as a result the country, offering several other socioeconomic benefits like e.g. waste minimization, creation of new job positions etc. by increasing, at the same time, the Renewable Energy Sources (RES) share in energy production sector etc. Apart from the favorable economics of the proposed waste to energy production scheme, all the additional environmental and social benefits make the attempt of a near future exploitation of the landfill gas produced in Heraklion, an attractive short term alternative for waste to bio-energy production.</p>


Author(s):  
Brandon J. Blizman ◽  
Darby B. Makel ◽  
J. Hunter Mack ◽  
Robert W. Dibble

A demonstration system has been developed intending to meet the California Energy Commission’s primary goal of improving California’s electric energy cost/value by providing a low-cost, high-efficiency distributed power generation system that operates on landfill gas as fuel. The project team led by Makel Engineering, Inc. includes UC Berkeley, CSU Chico and the Butte County Public Works Department. The team has developed a reliable, multi-cylinder Homogeneous Charge Compression Ignition (HCCI) engine by converting a Caterpillar 3116, 6.6 liter diesel engine to operate in HCCI mode. This engine utilizes a simple and robust thermal control system. Typically, HCCI engines are based on standard diesel engine designs with reduced complexity and cost based on the well known principles of engine dynamics. Coupled to an induction generator, this HCCI genset allows for simplified power grid connection. Testing with this HCCI genset allowed for the development of a control system to maintain optimal the inlet temperature and equivalence ratio. A brake thermal efficiency of 35.0% was achieved while producing less than 10.0 ppm of NOx and 30 kW of electrical power. Less than 5.0 ppm of NOx was recorded with a slightly lower brake thermal efficiency. Tests were conducted with both natural gas and simulated landfill gas as a fuel source. This demonstration system has shown that landfill gas fueled Homogeneous Charge Compression Ignition engine technology is a viable technology for distributed power generation.


2011 ◽  
Vol 110-116 ◽  
pp. 5265-5275
Author(s):  
Nikhil P. Patrike ◽  
Sanmaya Patro

Micro hydro is that form of alternative source which refers to hydro power systems with a power rating of 100Kw. A 100kW system will produce 100 standard units of electricity in one hour. Micro hydro systems differ from large hydro power since the flows of water required are much smaller. This paper will give the details of our research on micro-hydro turbine. It also includes designing, fabricating and testing of a model for the prototype. The whole project has been done at the Pimpri Chinchwad municipal corporation’s water treatment plant. A complete model analysis report, with CAD design will be illustrated in the report. The details of model like its specifications, significance, figures, advantages and various forms of application will be documented. The flow in between various processes is utilised to generate electricity. The plus point of our project is that we design according to available conditions, not recondition according to available design


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