Does the recycling process of a bioplastic product is adapted and efficient? why a wrong process of compost can lead to a worst environment effect than traditional petrol based products ?

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FICHE TECHNIQUE: Recycling bioplastics and limits

Problematic:

Does the recycling process of a bioplastic product is adapted and efficient? Why a wrong process of compost can lead to a worstenvironment effect than traditional petrol based products ?

Recall

Bioplastics are a form of plastics derived from renewable biomass sources, such as vegetable oil, corn starch, pea starch ormicrobiota, rather than traditional plastics which are derived from petroleum. They are used either as a direct replacement for traditional plastics or as blends with traditional plastics. Most in theindustry use the term bioplastic to mean a plastic produced from a biological source. One of the oldest plastics, cellulose film, is made from wood cellulose. All bio- and petroleum-based plastics aretechnically biodegradable, meaning they can be degraded by microbes under suitable conditions.

The term bioplastic do not only encompass the biodegradable or compostable plastics from corn andstarch. But also plastics from degradable petrol based products and plastics from renewable resources but not necessarily biodegradable.

Recycling

The debate on recycling bioplastics, specificallyPLA, with mainstream PET continues to rage on, and studies on the subject seem to contradict each other

To promote and generalize the use of compostable bioplastics is a fair cause. But the mainquestion is to know if the wastes end to compost!

Not like the majority of traditional plastics, bio plastics can be recycled and incinerated in a purpose of energy recovery and most of them arecompostable. Even if, the end-life industrial recycling facilities exist in Europe, they are rare. Moreover, most of the bioplastics (around 86%) are routed to burying sites where they are not enoughhumidity oxygen and microbes required for a good biodegradation.

We now know that bioplastics which are taking away from the compost process can have two negatives effects:

Negative for the...
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