Long Term Waste Management Strategy

• The new series of 5Rs (Reduce, Reuse, Recycle, Recover, Residual Disposal)options being recommended
  through the Waste Strategy has the potential to further extend the life of the landfill.

• A refinement of the projections of material to be received at  Landfill.

• A review of current landfill operations has revealed that the settlement rate of materials in the site is occurring
 at a greater rate than initially estimated. The rate of settlement is contingent on the composition of the waste and
 the analysis suggests that the current rate of settlement will continue.

A Commitment to Prioritizing the Waste Hierarchy through Reduction, Reuse and Recycling

The Waste Strategy places emphasis on waste reduction, reuse and recycling (the 3Rs)activities to promote
 the importance of resource conservation and to reduceenvironmental impact. 

The recommended waste reduction programs require minimal capital investment and when combined with
 education and enforcement have the potential to significantly reduce the amount of material requiring
 management by the City,once fully implemented.

The Waste Strategy recommends five new reduction, reuse and recycling focused programs for early implementation
 that address food waste reduction, textiles diversion,sharing and reuse opportunities and support community
 based waste exchange programs. 

Maximizing the Life of Landfill

The development of the Waste Strategy placed a priority on maximizing the life of Landfill by minimizing the
 amount of garbage sent for disposal. Factors that have led to updated estimates of the life of Landfill





Solid Waste Management System Overview


Municipal solid waste consists of all types of waste generated in the household.
In addition to organic waste such as leftover food, this also includes a wide variety
of recyclable materials. This type of diverse material composition with a correspondingly highly
 varied density of between 100 and 300 kg/m3 represents a particular challenge for such plants,
 because it simultaneously demands a high degree of plant flexibility and robustness.

Example process description for an automated sorting plant for municipal solid waste with manual re-sorting:

After infeed dosing, the material is separated into different grain sizes according to shape (flat [2D], rolling [3D], screening)
by various screening processes via our trommel screen and ballistic separator machinery.

 In order to achieve the maximum possible sorting purity, large-area films are separated from the material flows with the aid of windshifters.

This significantly improves subsequent sorting using near infrared technology (NIR).
In combination with the subsequent magnetic and eddy current process, the desired high output qualities are achieved.

 Following manual quality controlling, the material is finally separated into fractions, collected in hopper belts and pressed to reduce volume for storage and transport.

Example process description for a fully automatic municipal solid waste sorting plant:

Here, the waste is initially uniformly fed into the plant via a feed dosing system. Organic constituents, plastic packaging
 and cans are separated out by means of screening , as well as magnets. During the next step, we separate the various
 polymers and Tetrapak elements into different types of plastic using a special optical recognition matrix. This is followed
 by the extraction of paper, as well as non-ferrous metals. The organic fraction is stabilised by means of a biological process
 and processed into high-quality compost material. A further option is to use the organic fraction for alternative power generation
 in an anaerobic fermentation plant.