Ingenieur Vol. 64 Oct-Dec 2015 Ingenieur Vol 64 Oct-Dec 2015 | Page 27

The general priority order of the waste hierarchy is: prevention, minimization, reuse, recycling, other recovery including energy recovery, and final disposal. RECYCLING It is useful to distinguish between recycling ‘dry recyclables’ and ‘wet’ organics. For most of the dry materials found in waste such as metals, glass, paper, plastics and textiles, there are well established industrial value chains. Recycled organics return to the agricultural value chain as either animal feed or soil conditioners (including compost and anaerobic digestate). The drivers for recycling include the market value of the material as well as policies and legal Recy