Anaerobic Digestion - Making Biogas - Making Energy ab 68.99 € als epub eBook: The Earthscan Expert Guide. Aus dem Bereich: eBooks, Belletristik, Erzählungen,
Anaerobic Digestion - Making Biogas - Making Energy ab 66.49 EURO The Earthscan Expert Guide
Anaerobic Digestion - Making Biogas - Making Energy ab 68.99 EURO The Earthscan Expert Guide
In a biogas installation, green power is produced from manure and biomass. Because of the optimization and innovation of the biogas industry and the continuously rising energy prices, it is become very interesting to invest in biogas installations. The generated electricity can be sold to energy companies at attractive tariffs for sustainable electricity. The quantity of electricity generated can be guaranteed, making biogas installations attractive investments. For such biogas installation, the digester of the biogas is considered as the main component of the process. Biogas digesters are usually made from steel, concrete, plastics etc, which have a problem of either cost, environmental effect or maintenance problems. To have a sustainable production of biogas, the digester material is required to be renewable. Here it is designed from an engineered wood product, plywood, which insures a more sustainable production and relatively lower cost with acceptable maintenance. The mechanical design of the plywood digester including assembly and installation is done. It is possible to directly integrate the new digester with the mature technology of double membrane biogas holder.
High Quality Content by WIKIPEDIA articles! Renewable natural gas, also known as sustainable natural gas, is a biogas which has been upgraded to a quality similar to fossil natural gas. A biogas is a gas methane obtained from biomass. By upgrading the quality to that of natural gas, it becomes possible to distribute the gas to customers via the existing gas grid, and burned within existing appliances. Renewable natural gas is a subset of synthetic natural gas or substitute natural gas (SNG). Renewable natural gas can be produced economically, and distributed via the existing gas grid, making it an attractive means of supplying existing premises with renewable heat and renewable gas energy, while requiring no extra capital outlay of the customer. The existing gas network allows distribution of gas energy over vast distances at a minimal cost in energy. Existing networks would allow biogas to be sourced from remote markets that are rich in low-cost biomass (Russia or Scandinavia for example).
The research on suitable alternative clean energy sources to substitute the use of fossil fuels is rapidly attracting a lot of attention. In this context a wide range of renewable energy sources are considered as options. Biogas is one of these renewable energy sources that is deemed a suitable alternative energy source for both developed and the developing world. In the developing world biogas can be useful particularly for household energy use for warming, cooking, and lighting and hence replacing traditional burning of firewood. However, finding suitable energy crops from which to extract biogas and its implementation without affecting food security is still a debatable issue. This book focused on assessing the potential adoption of Teff for biogas production to meet the energy needs for Ethiopia by analyzing its methane potential at various growth stages, comparing its methane outputs to the methane potentials for maize and wheat in addition to assessing the impact of the biogas production. The intent of this book was written to generate information that can aid policy makers, planners and other relevant stakeholders in policy formulation and decision making process.
The world again green?? Who is going to think that way? We, the human beings are so busy in making the most valuable resources, a waste. Why don't we take initiative to make every waste a worth? Science and technology can help us bringing the change. This piece of writing describes the way in which we can consume totally waste products i.e., animal muck and can develop biogas from it following the rules of fermentation. The process may look old and of no value at first but the idea was to enhance the productivity of the biogas. For this reason, microbiology was taken into account and it included the isolation of mesophilic flora from the manure in the beginning. A pool of microbes was isolated but the emphasis was laid on the isolation and identification of anaerobic life forms residing in the animal manure. The fresh manure was taken and Methanosarcina strain was isolated following anaerobic conditions and was named Methanosarcinae WS1 strain. When the prepared inoculum was added to the fermentor on alternative days, in addition to the manure, a remarkable increase in the flame quality and duration was observed as compared to the fermentor which contained merely manure.
Diploma Thesis from the year 2012 in the subject Physics - Biophysics, grade: 1,0, University of Vienna (Physik), language: English, abstract: Todays agricultural food production highly depends on the availability of non-renewable resources like crude oil, natural gas and phosphor rocks. Tomorrow's food security can only be ensured by reducing this dependency. There are open questions concerning the methods that can be used for the production of renewable sources in order to achieve this goal. Is it technically and economically feasible, for instance, to produce micro-algal fertilizer in photo-bio reactors to recycle N and P from waste water streams? Is this furthermore possible by avoiding the combustion of non-renewable energies to become energy self-sucient? Relevant examples from literature will be used to investigate the microalgal potential to extract nutrients from urban waste water streams for the re-injection into the food chain of the population. The production of algae and heat will be described in a bio-physical way to calculate the mass- and energy flux in photo-bio reactors, attached to walls of buildings in Vienna. It will be suggested to decompose the generated bio material through anaerobic digestion to increase the N- and P share on one hand and to produce methane as an energy carrier on the other hand. The calculation model will be used to estimate the costs of producing a micro-algal fertilizer in Vienna. Furthermore a possible utilization of the generated fertilizer in vertical farms will be discussed. About 271t micro algae per year could be produced on a 100m*100m wall in Vienna. The combustion of the produced biogas could meet the entire heat and electrical-energy demand of the production process. By demonstrating the technical feasibility of every single part of the energy self-sucient production chain, the technical feasibility of the whole concept is ensured. The costs of this product, however, would be nine times higher than the costs of commercial fertilizer. The bio-re nery in question still has a great potential when it comes to saving a high amount of non-renewable resources, thus making it an attractive alternative to the exclusive use of biomaterial as an energy carrier. This can be further shown by comparing the sunlight irradiation on a photo-bio reactor with the calori c value of the produced micro algae: This calculation yields an energy conversion efficiency of about 4% which could be surpassed by the electricity production of every available photovoltaic system.
Anaerobic Digestion (AD) is used around the world to produce low CO2 energy and to make 'clean' fertilisers with large, medium and small-scale plants common-place in Western Europe and USA. There is over 100 million tonnes of agricultural and food waste produced each year in the UK, most of which is just that, waste. Anaerobic digestion, biogas and the heat and electricity that can be produced from it is still a nascent industry within the UK, yet a typical AD plant will recover its capital cost in the first 5 to 7 years. The benefits of AD spread throughout the community: Farmers and eco-entrepreneurs: Offers good financial returns. Community Leaders: Helps meet various policies and legislative targets. Food processing industry: Offers an environmentally sensitive waste disposal option and avoids increasing landfill fees. Local community: Provides a local heat and power supply, creates employment opportunities and reduces farm odours. Environment: Reduces volumes of waste going to landfill and greenhouse gas emissions, as well as providing an organic fertiliser. Although the process of AD is relatively simple there are several system options available to meet the demands of different feedstocks. This book describes, in simple, easy to read language the 5 common systems of AD; how they work, the impact of scale, the basic requirements, their costs and financial implications, and how to get involved in this promising green industry.