Eco-efficiency study confirms advantages of STPP

An eco-efficiency analysis of chelating agents indicates that STPP offers the best environmental performance (compared to GLDA, EDTA and NTA) for greenhouse emissions, primary energy use, land area use and risk potential. The study gives STPP a low overall mark because water emissions are given a higher weighting than any of the other twelve factors assessed, and STPP is given much higher score for this factor because of “eutrophication potential” assuming that detergent phosphates are discharged to eutrophication sensitive waters and that sewage is not adequately collected and treated.

SOFW Journal, 10-2009, T. Boren et al., “Eco-efficiency analysis – applied on chelating agents”

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