Procedures

Waste treatment solutions for all types of waste

The disposal facilities belonging to the DAW group offer all current methods to treat, recycle and dispose of waste.

  • Processing of domestic waste and of household-type industrial and commercial waste
  • Separation of metals and high-calorific elements for energetic recovery. After treatment the fraction destined for landfilling shows a very small residual biological activity and is then deposited.
  • Production of substitute fuels using the Stabilat process: Dewatering through biological means, followed by processing the mixture into reusable fractions such as substitute fuels and metals
  • Conversion of mainly liquid hazardous waste by means of chemico-physical reactions
  • Hazardous substances are destroyed or converted into non-hazardous substances so that they can then be recycled or disposed of in an environmentally sound manner
  • Treatment of all kinds of mineral waste
  • Dry mechanical processing by means of breaking, sieving, grading and separating
  • Soil biological treatment followed by recycling
  • Production of substitute building material which is then used in building projects
  • Recycling or disposal of treated fractions in landfills or by thermal soil treatment
  • Treatment of waste such as soils and construction waste contaminated with organogenic and heavy metals, residues from grit chambers, abrasives, dredged material, contaminated sludges, landfill leachate, or track ballast by means of chemico-physical soil washing
  • The harmful substances are removed by scrubbing, concentrated and then disposed of
  • Washed fractions can be recycled
  • Solidification and stabilization of waste aimed at non-harmful recycling or landfilling
  • Immobilization of the harmful contents
  • Sorting of waste fractions with the aim to recycle as much as possible
  • Direct recycling of mono-fractions
  • Further processing of sorting residues, if required
  • Thermal recovery of residues that cannot be recycled
  • Separation of high-calorific substances from suitable types of waste to use them as fuels in various thermal recycling facilities
  • Pre-treatment by means of crushing, stabilization, grading etc. of waste that cannot be used directly because of its condition
  • Production of new articles from recycled material
  • Treatment of all kinds of organic waste
  • Production of organic fertilizers from compost or fermentation residues
  • Production of biogas by means of fermentation

takes place in

  • Waste incinerators
  • Hazardous waste incinerators
  • Thermal soil treatment facilities
  • Sewage sludge incinerators
  • Power stations
  • Cement mills
  • Temporary storage of waste
  • In particular including hazardous waste
  • In order to optimize transport units or during waiting times for available plant capacities
  • Placing suitable waste into underground cavities to protect the surface above
  • For mineral wastes, dusts, sludges and liquids that are suitable regarding building physics and chemical composition
  • Important waste management option for wastes whose removal is mandatory (such as asbestos, insulating material) or if all recycling options have been exhausted
  • Waste removal to safe landfills in line with the applicable dump categories DK0 to DK III
  • Recycling of chemicals, solvents, and other waste using chemical recycling and packaging technology.
  • Examples include acids (e.g., sulfuric, phosphoric, and hydrochloric acid), alkalis (e.g., caustic potash, caustic soda), and solvents (e.g., isopropanol).
  • Examination of the waste to be disposed of and testing for potential reuse on the secondary market in compliance with the legal requirements of the chemicals market, such as the EU REACH and CLP regulations.
  • Grinding and repackaging of hardened salts, production of solutions from solids, adjustment of desired concentrations of liquid chemicals, filling into containers according to customer requirements.
  • Documentation is carried out in accordance with §5 of the German Closed Substance Cycle Waste Management Act and chemical law.