(June 8, 5:05 p.m. EDT) — As a recycler, we want to clarify some inaccuracies in the story “Low supply stymies recyclers,” in the May 21 issue of Plastics News [Page 1]. First, colored opaque PET bottles account for the greatest amount of yield loss among high density polyethylene recyclers, not HDPE containers that contain calcium carbonate.
In addition, the number of HDPE bottles with calcium carbonate that sink in the recycling stream are smaller than the number that sink in lab tests and there is no set percentage of calcium carbonate that will cause an HDPE container to sink. That is the opposite of what the article states. The amount of calcium carbonate that will cause an HDPE container to sink depends on the pigments and additives in each bottle.
Utilizing calcium carbonate in HDPE bottles can reduce our nation's dependence on petroleum. If all bottle makers used 3 percent of calcium carbonate in their product, it would displace more than 100 million pounds of a petroleum-based product
Stimulating innovative out-of-the-box thinking and working together with others can resolve many of the complex issues we face and result in real positives for the environment.
Envision Plastics Industries LLC