This is an difficult one as pizza boxes themselves are made from old corrugated cardboard (OCC) and by themselves are fully recyclable and capable of being reclaimed. However, the prob le m occurs when the pizza, wedges etc enter the box and they stain the box itself, leaving remnants of the food in the box, and or oil/grease stains. The oil is detrimental to the cardboard recycling process and can damage the quality of the output. An Envirowise tip is to remove the soiled base and recycle the clean op and/or sides. So at least the majority of the cardboard packaging is salvaged.
Recognizing the need for affordable graduate education, the Foundation created a $5,000 national scholarship open to individuals seeking a graduate degree in a program that supports the scrap processing and recycling industry as a whole. The industry itself is both labor and mechanically intensive as scrap processors take old and new metals, paper, rubber, plastic, glass, and more, and sort it into established grades which are highly sought after by manufacturers as a readily available feedstock. To begin to understand the challenges, ask yourself a few questions: How would you separate paper from glass? How about aluminum from copper, or lead, or iron and steel? It is perhaps easy to do this at the level of a few hundred pounds, but every year the industry must process in excess of 200 billion pounds of material. The challenges of recycling at this scale have given rise to new and innovative technologies as the recycling industry adapts to an ever changing marketplace of goods.