Policy     Economics     Technologies

Returned phosphoric acid: waste or not?

At the request of Thermphos, CE has carried out a study to explore the definition of ‘waste’. Thermphos is a supplier of phosphoric acid which, after use, is sent back to the company. On return the spent acid is classified as a waste material, however. This study indicates that reusing this phosphoric acid is environmentally far preferable to treating it as waste and disposing of it accordingly (in controlled land-fill). For Thermphos, the spent acid is a satisfactory raw material and defining it as waste creates an unwarranted financial and administrative burden, as well as being bad for the company’s image.

Authors

Harry Croezen

Delft, April 2004

Report in Dutch

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