Adsorption characteristics of sulfur solution by acticarbon against drinking-water toxicosis

Abstract EN

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 Fe2(SO4)3, Na2SO4, Na2S2O8, S and Na2SO3 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.

FTIR spectra showed that acticarbon had eight characteristic peaks, such as S-S stretch, H2O stretch, OAH stretch, ACAH stretch, C‚O or C‚C stretch, CH2 bend, CAH 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.

ForFT-IR spectra of Fe2(SO4)3, the peaks at 3850 cm_1, 3740 cm_1, 2925 cm_1 achieved the maximumwith 9 g/1000 g at 20 min.

For Na2SO4, 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 Na2S2O8, the peaks at3850 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 Na2SO3, 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.