Advanced Integrated Multiwaste System (AIMS)

To address the issues of complexity, cost and changing waste composition, DP has designed an innovative solution that integrates these technologies into a highly flexible and efficient single site unit for waste management – from feeding chute to stack. DP’s Advanced Integrated Multiwaste System has significant advantages in power output, operational costs and lower capital investment over traditional solutions.  
 
Key Features:
  • Separation of organic waste from recyclables  
  • Recycling to meet market demand for recycled materials. 
  • Production of high quality RDF 
  • Biological treatment of the organic fraction using Anaerobic Digestion 
  • Biogas production for power utilisation, or transfer to Bio-methane and liquid Carbon Dioxide (food grade) 
  • Potential fertiliser production or thermal drying of digestate to RDF
  • Thermal treatment of RDF for conversion to energy

 

All technologies used within the AIMS system are well proven and have been operational for many years. The integration of these proven solutions leverages DP’s core engineering skills and experience to deliver a unique, flexible solution that is particularly suited to the economic and practical challenges faced by emerging markets. 
 
Mechanical Treatment Plant (MRF) 
 
The MRF plant uses a manual or automatic sorting system to separate the recyclables, RDF and organics. The recyclables can be offered in the market or used to produce a high-quality Refuse Derived Fuel (RDF) for thermal treatment in the EfW plant. The remaining organic fraction is a degradable organic substance with the water content of the MSW. The  proper mechanical separation (splitting) of waste ensures that downstream waste processing technologies are deployed to maximum benefit. 
 
Organic Waste Treatment Plant (ADOS) 
 
Treats the organic substance using DP’s ADOS anaerobic digestion plant to produce biogas for use in gas engines to produce ‘green power’; or to transfer the biogas in bio-methane with a liquid carbon dioxide component of food grade quality. 
 
If the digestate is not required for compost or fertiliser, it will be dried for use as fuel in the EfW plant.  
 
DP Specialist RDF (EfW) Thermal Combustion Plant   
 
The plant consists of DP’s highly efficient Water Cooled Vibrating Grate and High Temperature High Pressure Specialist boiler solution that has been used in almost 100 waste to energy plants to date. This technology can use prepared fuel from both the mechanical treatment and the ADOS plant. An efficient flue gas cleaning system guarantees emissions levels that more than meet international standards. The EfW plant produces high pressure/temperature steam which is transferred to electric power at a steam turbine.
 
The AIMS system is the most efficient MSW treatment configuration available, with proven individual technologies.  
 
Advantages and Benefits 
 
Compared to a typical stoker-type MSW plant:
  • 30% higher power output than typical stoker-type MSW plant 
  • 40% lower capital investment 
  • 20% lower demand for additives for the flue gas treatment 
  • Significantly greater flexibility for future changes in waste streams and waste types
  • Integration of separate collection of different waste types possible
  • On site production of recycling products adjusted to market demands. 

Benefits Advantages and Benefits

Engineering Advanced Integrated Multiwaste System (AIMS)