**6. Reliable and emerging technologies for plastic recycling**

Existing recycling offers a spectrum of applications to single polymer compositions and to mixed plastic compositions (**Figure 4**).

#### **Figure 4.**

*Major Plastic waste recycling technologies (primary or closed-loop, and secondary recycling – mechanical recycling, tertiary recyling – chemical recycling, AND recycling energy recovery and valorization, quaternary – incineration).*

*Are Reliable and Emerging Technologies Available for Plastic Recycling in a Circular… DOI: http://dx.doi.org/10.5772/intechopen.101350*

Significant different processing strategies are required to accommodate the complexity of waste feedstock components. Changes to existing and emerging recycling technology are anticipated to convert feedstock to desired products optimally. Conventional and emerging mechanical and chemical technologies ranging from bench-scale demonstrations to full-scale implementation are becoming investment targets across the globe. Notable examples involve thermal, chemical, and biological depolymerization processes (**Table 2**).


**Table 2.** *Plastic recycling process.*
