Abstract
Sulfur and ammonia nitrogen are rich nutrient pollutants, after entering water can cause algal blooms, cause eutrophication of water body, the spread of them will not only pollute the environment, destroy the ecological balance, but also harm human health through food chain channels, especially drinking-water toxicosis. Acticarbon can adsorb harmful substances, it was beneficial for people's health. In order to figure out the optimal adsorption condition and the intrinsic change of acticarbon, five chemicals were adsorbed by acticarbon and analyzed by FT-IR. The optimal adsorption condition of Fe(2)(SO(4))(3), Na(2)SO(4), Na(2)S(2)O(8), S and Na(2)SO(3) was 9 g/1000 g at 80 min, 21 g/1000 g at 20 min, 15g/1000 g at 20 min, 21 g/1000 g at 60 min and 21 g/1000 g at 100 min, respectively. FT-IR spectra showed that acticarbon had eight characteristic peaks, such as S-S stretch, H(2)O stretch, O-H stretch, -C-H stretch, C[bond, double bond]O or C[bond, double bond]C stretch, CH(2) bend, C-H were at 3850 cm(-1), 3740 cm(-1), 3435 cm(-1), 2925 cm(-1), 1630 cm(-1), 1390 cm(-1), 1115 cm(-1), 600 cm(-1), respectively. For FT-IR spectra of Fe(2)(SO(4))(3), the peaks at 3850 cm(-1), 3740 cm(-1), 2925 cm(-1) achieved the maximum with 9 g/1000 g at 20 min. For Na(2)SO(4), the peaks at 2925 cm(-1), 1630 cm(-1), 1390 cm(-1), 1115 cm(-1), 600 cm(-1) achieved the maximum with 21 g/1000 g at 120 min. For ones of Na(2)S(2)O(8), the peaks at 3850 cm(-1), 3740 cm(-1), 1390 cm(-1), 1115 cm(-1), 600 cm(-1), achieved the maximum with 2 g/1000 g at 80 min. For ones of S, the peaks at 3850 cm(-1), 3740 cm(-1), 2925 cm(-1) achieved the maximum with 19 g/1000 g at 100 min, the peaks at 1390 cm(-1), 1115 cm(-1), 600 cm(-1) achieved the maximum with 19 g/1000 g at 20 min. For FT-IR spectra of Na(2)SO(3), the peaks at 1630 cm(-1), 1390 cm(-1), 1115 cm(-1), 600 cm(-1) achieved the maximum with 2 g/1000 g at 100 min. It provided that acticarbon could adsorb and desulphurize from sulfur solution against drinking-water toxicosis.