Table S2. Comparison of various parameters with other isotherm studies Surface As(V) As(V) site Particle area conc. pH mg density size (m2 (mg time (mg (h) Synthetic goethite powder 103 5̶ 25 24 5 4.8 0.05 [] Schwertmannite powder 206.1 10-35 24 5 104.2 0.51 [] Zeolite powder 450 100 100 6.5 76 - [] 4.73 Magnetic wheat straw powder (wheat 10 - - 30.24 - [] with Fe3O4 straw) Amorphous hydrous powder 290 10 4 4 66.7 0.23 [] ferric oxide Honeycomb briquette granule, cinders with Fe3O4 - 100 20 7 1.45 - [] 0.5mm and MnO2 Iron hydroxide-coated granule, 250 0.3 48 7.2 15.9 - [] alumina 0.5-1.0mm granule, Synthetic siderite 182 0-25 182 - 10.7 0.06 [] 0.075 mm granule, Granular ferric 0.009-0.125 236 0-0.1 432 7 20 0.08 [] hydroxide mm Irregular shaped granule, 1-2 granular 199.4 0- 5 24 7 31.7 0.16 [] mm schwertmannite Coal mine drainage powder 135 5-25 24 6.9 40.8 0.3 [] sludge (CMDS) granule, This PUCMDS 0.105-0.15 23 5-25 24 7.2 28.1 1.22 study mm Table S3. Results of Thomas modeling for arsenic removal in rapid small-scale column tests Parameter (unit) SC1 SC2 SC3 SC4 Breakthroughs (BV) 8190 13540 10160 14330
Table S2. Comparison of various parameters with other isotherm studies Particle size Surface area (m2 As(V) conc. (mg time (h) pH As(V) mg site density (mg Synthetic goethite powder 103 5̶ 25 24 5 4.8 0.05 [] Schwertmannite powder 206.1 10-35 24 5 104.2 0.51 [] Zeolite powder 450 100 100 6.5 76 - [] Magnetic wheat straw with Fe3O4 powder 4.73 (wheat straw) 10 - - 30.24 - [] Amorphous hydrous ferric oxide powder 290 10 4 4 66.7 0.23 [] Honeycomb briquette cinders with Fe3O4 and MnO2 granule, 0.5mm - 100 20 7 1.45 - [] Iron hydroxide-coated alumina granule, 0.5-1.0mm 250 0.3 48 7.2 15.9 - [] Synthetic siderite granule, 0.075 mm 182 0-25 182 - 10.7 0.06 [] Granular ferric hydroxide granule, 0.009-0.125 mm 236 0-0.1 432 7 20 0.08 [] Irregular shaped granular schwertmannite granule, 1-2 mm 199.4 0- 5 24 7 31.7 0.16 [] Coal mine drainage sludge (CMDS) powder 135 5-25 24 6.9 40.8 0.3 [] PUCMDS granule, 0.105-0.15 mm 23 5-25 24 7.2 28.1 1.22 This study Table S3. Results of Thomas modeling for arsenic removal in rapid small-scale column tests Parameter (unit) SC1 SC2 SC3 SC4 Breakthroughs (BV) 8190 13540 10160 14330
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