Tel: Tel: +852-2997 8822  whatsapp: Fax: +852 2997 8832  e-mail: e-mail: info@YottaResources.com  繁體版  |   简体版  
tel whatsapp email

Classification of RDF  

CategoryRDF-1RDF-2RDF-3RDF-4RDF-5RDF-6RDF-7
DescriptionAfter removal those large size of waste, those remaining combustible solid waste are used as the fuelBy magnetic separation to remove 95 WT% of metals from MSW, the waste is crushed into coarse particles. Those remaining combustible waste which can pass through the sieve of 152.4mm, is used as the fuelRemoving 95WT% of metals, glass and inorganic matters, the waste is then crushed into immature particles. The combustible solid waste which can pass through the sieve of 50.8mm, is used as the fuel95WT% of metals, glass and inorganic matters are removed from MSW. The remaining waste is crushed into powder form. The size must be able to pass through the sieve of 0.889mm. Those combustible solid waste is used as the fuelRemoving metals, glass and other non-combustible matters from MSW, it is then grinded, dried and mixed with additives. Those combustible solid waste can be compressed into cylindrical, spherical, rectangular or other shapes as the fuelMSW is processed into fluid form of fuelMSW is processed into gaseous form of fuel
RemarksMSWCoarse RDF             C-RDFFluff RDF             F-RDFPowder RDF             P-RDFDensified RDF     D-RDFLiquid Fuel                Gaseous Fuel             

Comparison of Mechanical Biological Treatment (MBT), Incineration and Land Filling methods  

 Global EnvironmentSecondary PollutionEnergy UsageCost of Pollution Prevention Ash Management
MBTEnergy recovery is good. It can replace some parts of fossil energy. Good in CO2 reduction (emission is about25%-50% of incineration), it helps to ease the global warming effectLittle secondary pollution, it can effectively reduce the emission of dioxinProduction scale of RDF-5 can be varied. The production can be done at the site of waste collection. Those RDF-5 can be used for different applications (e.g. power plants); the fuel is stable and easy to be controlled, the efficiency of power generation can be reached to as high as 35%Combustion of exhaust complies with the regulation of emission of dioxin. The investment in pollution prevention is lessComplete combustion, less unburned materials, low loss on ignition, and easy for ash recycling
IncinerationEnergy recovery is poor, it gives a big impact on global warming effectDioxin is the major problem of secondary pollutionIn order to be effective for power generation, it has to reach a certain scale. Incineration is not easy to be controlled. The efficiency of power generation is around 10% onlyIt is easy to exhaust such dioxin pollutants. Besides the conventional system of dust and acid removal, it requires to implement an equipment to reduce the production of dioxinRelative incomplete combustion, more unburned materials, high loss on ignition and difficult to recycle ash
Land FillNo energy recovery, it produces methane which dramatically affects the global warming effectMethane, stench, and mosquito are the major secondary pollution. If the concentration of biogas is up to a threshold, it is easy to catch a fireIt requires a certain scale to collect methane otherwise it is not worth for power generationIt needs to occupy a large scale of lands. In addition, it pollutes the air as well as has a leakage of sewage. It affects the ecology and requires a high investment on pollution controlTiny pollutants floating in air and hard to control. Use a plastic cloth to cover the waste, but it is easy for bacteria regeneration
×