Dual mechanochemical immobilization of heavy metals and decomposition of halogenated compounds in automobile shredder residue using a nano-size metallic calcium reagent

Srinivasa Reddy Mallampati,a Byoung Ho Lee,a* Yoshiharu Mitoma,b Cristian Simionc*

aDepartment of Civil and Environmental Engineering, University of Ulsan, Daehak-ro 93, Nam-gu, Ulsan 680-749, Republic of Korea

bDepartment of Environmental Sciences, Prefectural University of Hiroshima, 562 Nanatsuka-Cho, Shobara City, Hiroshima 727-0023, Japan

cPolitehnica University of Bucharest, Department of Organic Chemistry, Bucharest 060042, Romania

*Corresponding authors. (B. H. Lee), Tel. +82 52-2592279, Fax. +82 52-259-2629, E-mail addresses: ; (C. Simion) Tel.: +40 21-4023948, E-mail addresses: .

Number of Pages: S1-S3

Number of Figure: Two (S2)

Number of Tables: One (S3)

Fig. S1. The photographs of the different ASR residue/soil fractions.

Fig. S2. SEM/EDS elemental spectrum of ASR (0.250 mm) for before and after ball milling treatment with n-Ca/CaO.

Table S1.

Results of semi-quantitative SEM-EDS elemental analysis before, after ball milling and ball milling treatment with nanometallic Ca/CaO (wt%).

1.0 mm / 0.425 mm / 0.250 mm
Elements / Before treatment / Ball milling / Ball milling with
n-Ca/CaO / Before treatment / Ball milling / Ball milling with
n-Ca/CaO / Before treatment / Ball milling / Ball milling with
n-Ca/CaO
Ca / 1.12 / 16.97 / 70.46 / 1.43 / 17.47 / 72.92 / 1.66 / 18.96 / 76.82
Cr / 0.51 / 0.34 / 0.026 / 0.55 / 0.24 / 0.022 / 0.55 / 0.26 / 0.01
Mn / 1.40 / 1.10 / 0.08 / 1.64 / 1.2 / 0.09 / 1.70 / 1.24 / 0.06
Fe / 49.56 / 30.13 / 6.83 / 47.19 / 22.87 / 5.7 / 49.87 / 20.18 / 5.13
Co / 1.75 / 1.38 / 0.11 / 1.4 / 0.56 / 0.10 / 1.53 / 1.21 / 0.098
Ni / 1.16 / 0.9 / 0.06 / 0.97 / 0.44 / 0.06 / 0.66 / 0.38 / 0.02
Zn / 11.27 / 4.74 / 1.61 / 12.85 / 4.97 / 1.28 / 14.57 / 5.43 / 0.86
As / 0.98 / 0.77 / 0.091 / 1.10 / 0.70 / 0.077 / 1.3 / 0.89 / 0.04
Cd / 1.23 / 0.89 / 0.33 / 1.6 / 0.5 / 0.24 / 1.28 / 0.18 / 0.01
Pb / 1.1 / 0.87 / 0.10 / 1.7 / 0.6 / 0.04 / 1.80 / 0.64 / 0.01
Cl / 1.37 / 0.4 / 0.074 / 1.21 / 0.56 / 0.053 / 2.16 / 0.59 / 0.02
Br / 30.75 / 23.85 / 1.72 / 34.15 / 25.99 / 1.48 / 35.64 / 23.87 / 1.02

S1