TECHNOLOGY

Refuse Derived Fuel (RDF)

Refuse Derived Fuel (RDF)

Technology

Sustainability is defined as the capability of the planet to continuously provide the needs of the current and future generations. This characteristic however is currently in peril because of the massive degradation the planet is currently engulfed in. Solid waste has desolated the lands making it hard for plants, animals, and even humans to thrive and flourish. Conventional energy generation and consumption has caused severe pollution to the environment. Mother Nature has constantly been under siege by pollutants for centuries. Things cannot go on as they or we will be dragging the planet to a state of inhabitability. Now is the time for Refuse Derived Fuel. Refuse Derived Fuel (RDF) will empower sustainability by extracting fuel from municipal solid waste. This means that the waste will be converted into fuel or energy. This is groundbreaking because now there exist an added benefit for disposing waste, and that is getting energy. TGER's new technology makes the elimination of waste the solution to the energy generation dilemma. Two problems will effectively be solved by only one process. Refuse Derived Fuel will help ease the problems regarding air pollution as well. Most of the pollutants plaguing the world today come from the extraction, production, and combustion of energy. With the RDF system, energy can be created with very minimal amount of pollution into the environment. We can now stop patronizing harmful forms of energy and switch to clean ones. In doing so, we will be preventing the worsening of pollution and possibly help the planet recover and revert to its former self. With the planet's recovery it will finally be the end of global warming and climate change.

An Innovation on Waste Disposal.

Dumping waste in landfills is still one of the most typical methods of disposal for municipal solid wastes in every country. Imminent exhaustion of available space for dumping wastes and opposition against enveloping new waste disposal sites is creating crisis in waste management control. An approach including the practice of waste minimization and recycling is needed to increase the service of existing waste disposal site. Waste mining or waste from extractive operations (i.e. waste from extraction and processing of mineral resources) provides opportunity to provide disposal space for new coming waste and recycling of valuable materials.

This will also help eliminate potential contaminant sources and cost reduction in post-closure monitoring. An effort to utilize solid waste at dumpsites as refuse-derived fuel (RDF) was carried out. The produced RDF can be utilized in the gasification system. These wastes were initially examined for their physical composition and chemical characteristics. Plastic wastes were purified by separating them from other components, through manual separation and trommel screen.

Refuse-Derived fuel (RDF) is also known to many as an alternative fuel produced from the combustibles in municipal solid wastes which are composed of waste plastic and other materials such as textiles, wood, soil, etc. Energy recovery as RDF is a preferred choice for utilizing plastic wastes when their potential recycling as raw material for product manufacturing is not possible because its physical properties have been damaged during long exposure to sunlight. For RDF utilization, gasification technology has been applied to the production of energy from solid wastes. This thermo-chemical process converts solid carbon based material into a combustible gaseous product containing CO2, CO, H2, CH4 and other trace gases. The producer gas can be used for heating, lighting and power generation.

Utilization of RDF through Gasification System

Dumping waste in landfills is still one of the most typical methods of disposal for municipal solid wastes in every country. Imminent exhaustion of available space for dumping wastes and opposition against enveloping new waste disposal sites is creating crisis in waste management control. An approach including the practice of waste minimization and recycling is needed to increase the service of existing waste disposal site. Waste mining or waste from extractive operations (i.e. waste from extraction and processing of mineral resources) provides opportunity to provide disposal space for new coming waste and recycling of valuable materials.

This will also help eliminate potential contaminant sources and cost reduction in post-closure monitoring. An effort to utilize solid waste at dumpsites as refuse-derived fuel (RDF) was carried out. The produced RDF can be utilized in the gasification system. These wastes were initially examined for their physical composition and chemical characteristics. Plastic wastes were purified by separating them from other components, through manual separation and trommel screen.

Refuse-Derived fuel (RDF) is also known to many as an alternative fuel produced from the combustibles in municipal solid wastes which are composed of waste plastic and other materials such as textiles, wood, soil, etc. Energy recovery as RDF is a preferred choice for utilizing plastic wastes when their potential recycling as raw material for product manufacturing is not possible because its physical properties have been damaged during long exposure to sunlight. For RDF utilization, gasification technology has been applied to the production of energy from solid wastes. This thermo-chemical process converts solid carbon based material into a combustible gaseous product containing CO2, CO, H2, CH4 and other trace gases. The producer gas can be used for heating, lighting and power generation.

The Gift of RDF

The world strives for greener and efficient sources of energy due to the depletion of our environment because of greenhouse gases. So, the need for projects like Waste-to-Energy that produce Refused Derive Fuel (RDF) will be the trend. Refused Derived Fuel or briefly RDF is a secondary fuel, with high calorific value or combustibility. Facilities that produce RDF undergoes extensive processing of MSW, the processing includes extracting non-combustible recyclables such as metal and glass. Removing noncombustible metals and glass from the waste stream improves the RDF by increasing heating value and reducing the amount of ash produced.

RDF is produced from MSW through a number of processes to meet requirements for particle size, moisture content and non-combustible content dictated by the thermal unit that will receive RDF. MSW is processed through shredding, magnetic separation, air classification, screening, and then separation for both fuel preparation and materials recovery. The energy content of RDF depends on its initial properties and the pre-processing performed on the incoming MSW.

RDF has moved forward as a valuable element in the waste industry. It allows us to reduce our dependency on oil and coal. It also allows us to recover energy and recyclables, and gradually eradicate the dumpsite. In the coming years, waste to energy companies will continue to refine RDF technologies for their facility operations. RDF can help us achieve our goal of having waste to no longer be a wasted resource but a source from which to obtain green energy on an industrial scale. It is the gift of RDF.

Important Facts about RDF

Refuse Derived Fuel is produced by shredding and dehydrating municipal solid waste (MSW) into particle pieces. It consists largely of organic components of municipal waste such as plastics and biodegradable waste. RDF processing facilities are normally located near a source of MSW or landfills; it may also be located at a remote location. About 10-20% of the Municipal Solid Waste is removed from landfill during the processing of RDF.

RDF can be used in a variety of ways to produce electricity. It can be used alongside traditional sources of fuel in coal power plants. It can also be fed into plasma arc gasification modules and pyrolysis plants. It can be burned for fuel by itself or together with other fuels. It can also be used in cement kiln industry as substitute to coal. Production and use of RDF is a very advantageous tool in an integrated waste management solution and can likewise perform as a tactical element for the reduction of fossil CO2 emissions and raise the renewable energies share.

RDF vs. Coal Fuel

RDF from MSW can be utilized in other processes than incineration and combustion. Gasification and pyrolysis processes are generally promoted as "greener" alternatives to incineration or energy-from waste. Using gasification the energy content of the waste is transformed into a syngas, which can be reused as chemical feedstock andproduce power. Furthermore, in generating electricity thru coal, the coal usually pulverized and burned in a furnace. Heat converts boiler water into steam, which is then used to spin turbines, which turns generators and creates electricity.

Combustion of coal, like any other compound containing carbon, produces carbon dioxide (CO2) and nitrogen oxides (NOx) along with varying amounts of sulfur dioxide (SO2). Sulfur dioxide reacts with oxygen to form sulfur trioxide (SO3), which then reacts with water to form Sulfuric Acid. Sulfuric Acid is returned to the Earth as a form of acid rain. Emissions from coal-fired power plants represent the largest source of carbon dioxide emissions, a primary cause of green house gases. Since the carbon content of coal is much higher than oil, burning coal is a more serious threat to global temperatures. It also emits twice as much carbon dioxide when compared with natural gas to produce the same level of heat, which increased the levels of harmful greenhouse gases emitted into the earth's atmosphere.

With the use of RDF it helps us to reduce our dependence in using oil and coal, provides energy and certain recyclables from MSW and minimizes waste from the landfills. RDF will help us reach the goal of having MSW no longer be a wasted resource but a source from which to extract raw materials and energy in our industry.

Industrial Effects of RDF

RDF co-incineration in industrial processes has advantages such as saving non-renewable resources by substituting fossil fuels in high-demand energy processes. RDF also used in industrial that offers more flexibility than incineration. It leaves more opportunity for future recycling programs, it does not need to be fed with a constant amount of waste and it does not require investment in capital intensive dedicated incineration facilities.

The waste substances undergo a series of varying processing stages. Recyclable product contents such as metal are removed from the mix, as are heavy fractions and not shredded items. Following the drying and sizing-out process the remaining lighter material for thermal processing makes up approximately 40% of the material deposited at the beginning of the process. In this way, valuable fuels can be generated from waste previously dumped into landfill sites in an unprocessed form. As the biogenic share is 50% wood, paper, organic substances, CO2 emissions are reduced by this amount in combustion. A financial advantage when it comes to the awarding of CO2 certificates.

This also makes the use of alternative fuels attractive in regards to co-combustion, particularly in high energy consumption sectors such as the paper and cement industries.

RDF as a Helpful Resource to our Environment

Household waste is mostly burned by ordinary incineration, and thus it is not used effectively. Incineration produces a large amount of carbon dioxide (CO2) which is very harmful to our environment. RDF is effectively utilized as a fuel for boilers in papermaking companies and other industries, beginning with RDF power generation.

RDF has two ways in reducing carbon dioxide in our environment, one is reduction of CO2 generated by conventional simple incineration treatment and second one is reduction of CO2 generated by use of fossil fuels by boilers, etc.

In using RDF, it makes a major impact in helping our environment in the way of reducing production of CO2. It is also used as alternative fuel for diesel in production of energy and it minimizes the wastes volume in our landfill areas.

RDF: The Nature Friendly Fuel

One solution in helping our mother earth in lessening the production of global warming is through the use of RDF. RDF is a value added material with a higher calorific value and a homogeneous particle size. It extracts fuel from MSW or Material Solid Waste it means that the waste will be converted into Fuel or Green Energy. In this technology it reduces wastes from our landfill areas and also provides energy without harming our environment.

Energy is one major source we all need. It produces electricity without using fuels or any coals. By using RDF we ease the pollution problem because the energy created in here releases a very minimal pollution to the environment. RDF can also use in cement kilns or power plants and it's generally made up from plastics and biodegradable organic wastes, this process is usually located near MSW.

RDF can also provide a funding source where unused carbon credits are sold on the open market thru a carbon exchange. Good thing about using RDF is we produced money out of waste without devastating our environment.