Waste disposal is a serious concern these days, especially with the increasing public awareness of the need to protect the environment. Solid wastes like old tires present complicated disposal problems. Large, hollow, durable, and non-biodegradable, old tires can take up substantial space in landfills. Leaving tires to nature can also be problematic as mosquitoes and other pests may thrive on them. In the United States, an estimated 300 million scrap tires are produced every year. Around the world, the number jumps to about 2 billion. Fortunately, there are several ways to recycle scrap tires including conversion into biofuels. What is … Continue reading →
Biogas plants are decentralized energy system that can lead to self-sufficiency in heat and power requirements, and at the same time reduces environmental pollution. A biogas plant stabilizes organic waste through natural biological process in the absence of air and transforms waste into biogas and biofertilizer. Such facilities are well-suited to wet organic material and are commonly used for treating biodegradable waste materials such as waste paper, grass clippings, leftover food, sewage and animal waste. The components of a modern biogas (or anaerobic digestion) plant includes manure collection, anaerobic digester, effluent treatment plant, gas storage, and CHP or electricity generating … Continue reading →
Germany, Europe’s largest economy, is aiming to generate 65 percent of its energy from renewable sources by 2030. Additionally, Germany is currently in the process of abandoning nuclear power by 2022 and is making plans for a long-term exit from the use of coal. This change signifies progress for Europe as a whole. According to research from the Fraunhofer Organization of Applied Science, output of hydroelectric, solar, wind, and biomass generation units increased 4.3 percent last year, generating a total 219 terawatt hours (TWh) of electricity. The total national power production was 542 TWh. This national power production was derived … Continue reading →
Several years ago, it was coal that brought a great deal of the progress needed in the rural areas. Much have changed over the years. With the advancement of energy technologies, going back to mining and processing coal no longer makes much sense. Politicians who promise to bring back coal-related jobs simply don’t have a grasp of reality. Advanced economies are already turning to renewable sources of energy and it makes sense for developing economies to do the same, unless they’re limited by urgency that they have nothing but cheaper fossil fuels to exploit. Of course, it’s not enough to … Continue reading →
Biomass is the material derived from plants that use sunlight to grow which include plant and animal material such as wood from forests, material left over from agricultural and forestry processes, and organic industrial, human and animal wastes. Biomass comes from a variety of sources including wood from natural forests, agricultural residues, agro-industrial wastes, animal manure, organic industrial wastes, municipal solid wastes, sewage sludge etc. When biomass is left lying around on the ground it breaks down over a long period of time, releasing carbon dioxide and its store of energy slowly. By burning biomass its store of energy is released … Continue reading →
يعد تمر النخيل احد المنتجات الزراعية الاساسية في المناطق الجافة و شبه الجافة في العالم خاصة في الشرق الأوسط و شمال افريقيا. يوجد اكثر من 120 مليون شجرة نخيل في العالم تنتج عدة ملايين من الاطنان من التمر كل عام، بالاضافة الي المنتجات الثانوية و التي تشمل عروق النخيل، الأوراق، السيقان، السعف و الليف. يمتلك العالم العربي اكثر من 84 مليون شجرة نخيل و اغلبها في مصر، العراق، المملكة العربية السعودية، ايران، الجزائر، المغرب، تونس و الإمارات العربية المتحدة. تعتبر مصر اكبر منتج في العالم للتمر حيث بلغ إنتاجها السنوي في عام 2012 1.47مليون طن من التمر و هو ما … Continue reading →
Algae biofuels have the potential to become a renewable, cost-effective alternative for fossil fuels with reduced impact on the environment. Algae hold tremendous potential to provide a non-food, high-yield, non-arable land use source of renewable fuels like biodiesel, bioethanol, hydrogen etc. Microalgae are considered as a potential oleo-feedstock, as they produce lipids through photosynthesis, i.e. using only CO2, water, sunlight, phosphates, nitrates and other (oligo) elements that can be found in residual waters. Algae also produce proteins, isoprenoids and polysaccharides. Some strains of algae ferment sugars to produce alcohols, under the right growing conditions. Their biomass can be processed to … Continue reading →
The continuous rise in fossil energy prices, combined with climate change concerns and progress in renewable energy sector, has catalyzed interest in clean energy systems across the MENA region, especially in the Mediterranean. The Mediterranean region has abundant renewable resources, such as wind, solar, and biomass, which makes it a fertile zone for renewable energy developments. The agricultural sector has played a key role in the progress of renewable energy sector around the world as it provides large areas where renewable energy projects are built and is also the predominant feedstock source for biomass energy projects. For example, agricultural sector … Continue reading →
Jordan has good biofuels production potential in the form of crop residues, agro-industrial wastes and urban wastes. Biomass energy sector in Jordan is slowly, but steadily, developing. As per a recent World Bank report, the country is currently generating 3.5MW of power from biomass resources which represent 0.1% of the total energy demand in the country. However there is no available data on the amount of biofuels produced in Jordan. Jordan produces significant amount of biofuel feedstock in the form of lignocellulosic biomass, used cooking oil, animal tallow, agro-industrial wastes, industrial effluents etc. In Jordan, transportation sector alone is responsible of 51% of final … Continue reading →
اتجهت أبحاث الخبراء والمتخصصين فى الفترة الأخيرة إلى التركيز علي إنتاج الوقود الحيوى من الطحالب الخضراء، خاصة بعد إقرار بدء مرحلة نضوب النفط فى فترة زمنية قريبة، وأنه سينضب أكثر من 95% من مصادر البترول الموجودة على سطح الأرض. وايضا مشكله الغذاء المحتمل حدوثها في حاله استخدام المنتجات الزراعيه او مخلفاتها في الوقود الحيوي لانتاج منتجات الوقود مثل وقود الديزل الحيوي, الايثانول, الجازولين الحيوي و غيرهم من منتجات الوقود الحيوي. وقد اشارت االعديد من الدراسات الحديثه الي ان الطحالب الخضراء كمصدر للوقود تندرج تحت لواء مصادر الطاقه المتجددة وخاصا بعد التزايد المستمر في سعر الوقود الاحفوري. فهي تنمو بسرعة ولها … Continue reading →
Jatropha is a genus of nearly 175 species of shrubs, low-growing plants, and trees. However, discussions of Jatropha as a biodiesel are actually means a particular species of the plant, Jatropha curcas. The plant is indigenous to parts of Central America, however it has spread to other tropical and subtropical regions in Africa and Asia. Jatropha curcas is a perennial shrub that, on average, grows approximately three to five meters in height. It has smooth grey bark with large and pale green leaves. The plant produces flowers and fruits are produced in winter or throughout the year depending on temperature … Continue reading →
اقتضى الارتفاع الملحوظ الذي شهدته أسعار النفط في الماضي القريب، والاضطرابات التي نجمت عنه في سوق الطاقة، من العديد من بلدان منطقة الشرق الأوسط وشمال أفريقيا لاسيما غير المنتجة للنفط منها، البحث عن مصادر جديدة للطاقة لأسباب اقتصادية وبيئية معاً. ومن جهة أخرى، باتت الطاقة المتجددة تحظى باهتمام عالمي متزايد، نظراً لدورها في الحد من التغيرات المناخية، ودفع عجلة التنمية المستدامة في البلدان النامية، وتعزيز أمن وتوفير الطاقة. وتضم قائمة البلدان المنتجة للمخلفات العضوية في الشرق الأوسط وأفريقيا، كلاً من السودان، ومصر، والجزائر، واليمن، والعراق، وسوريا، والأردن، حيث اعتادت المناطق الريفية في هذه المنطقة استخدام الطاقة الحيوية بشكل واسع في … Continue reading →
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