State Water Resources Research Institute Program


Project ID: 2011NJ274B
Title: Scrap Tire and Water Treatment Residuals as Novel "Green" Sorbents for Removal of Common Metals from Polluted Urban Stormwater Runoff
Project Type: Research
Start Date: 3/01/2011
End Date: 2/29/2012
Congressional District: NJ-008
Focus Categories: Methods, Water Quality, Non Point Pollution
Keywords:
Principal Investigators: Deng, Yang; Rakshit, Sudipta (Montclair State University); Sarkar, Dibyendu
Federal Funds: $ 14,966
Non-Federal Matching Funds: $ 29,946
Abstract: Low cost "green" sorbent materials can be used in urban stormwater (USW) best management practices (BMP) to remove common metal pollutants such as Cu, Pb, and Zn. Ground tire rubber (TR) has been reported to immobilize metals such as Cu and Pb. Another low-cost, "green" sorbent, which has proven capacity of removing Cu, Pb, and Zn from water, is Al-based drinking water treatment residuals (Al-WTR). However, there is no reported study on the usage of either TR or Al-WTR for removal of metals from polluted USW runoff. Since TR has the potential to leach Zn, the use of Al-WTR in conjunction with TR is likely to generate a more efficient metal sorbent. The primary objective of the proposed research is to understand the retention/release characteristics of typical USW metals such as Cu, Pb, and Zn on TR and Al-WTR as a function of environmental conditions relevant to USW, such as solid solution ratio, ionic strength, pH, and temperature. Studies on leachability of benzothiazole, an organic pollutant and a typical constituent of tire materials, will also be conducted, and the effectiveness of Al-WTR in retaining benzothiazole will be assessed. If the results obtained from this preliminary study are encouraging, a more comprehensive, greenhouse and field-scale study on the usage of these low-cost sorbents for development of a "green" BMP for USW runoff will be proposed in a subsequent NIWR competition.

Progress/Completion Report, 2011, PDF

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