Preparation method of orthosilicate compound ammonium removal material and application in sewage ammonium removal
A salt compound, orthosilicate technology, applied in the direction of silicon compounds, silicates, alkali metal silicates, etc., can solve the problems of being susceptible to organic pollution, low adsorption selectivity, small adsorption capacity, etc. Rapid decline in adsorption capacity, good resistance, and the effect of reducing operating costs
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Embodiment 1
[0034] Weigh 0.6-3mol of sodium silicate, 0.2-12mol of zinc carbonate, and 20-400g of acetone in a planetary mill for grinding and mixing for 1-5 hours, and at a speed of 300-500rpm, grind and mix for 2-6 hours to obtain raw material mixed powder body. The raw material mixed powder is placed in a crucible, placed in a vacuum drying oven, and dried at a temperature of 50-150° C. for 1-4 hours to obtain a dry mixed powder. Put the dried mixed powder in a muffle furnace at 700-1000°C, under the protection of nitrogen, with a programmed temperature rise rate of 1-10°C / mim, perform high-temperature roasting for 5-10h, and naturally cool down to room temperature. The calcined powder is washed with deionized water for 3 to 6 times, and the obtained solid insoluble matter is orthosilicate Na 2 ZnSiO 4 Deammonization material.
Embodiment 2
[0036] Weigh 0.6-3mol of sodium silicate, 0.2-12mol of ferrous oxalate, and 20-400g of acetone in a planetary grinder for grinding and mixing for 1-5 hours, and at a speed of 300-500rpm, grind and mix for 2-6 hours to obtain raw material mixing Powder. The raw material mixed powder is placed in a crucible, placed in a vacuum drying oven, and dried at a temperature of 50-150° C. for 1-4 hours to obtain a dry mixed powder. Put the dried mixed powder in a muffle furnace at 700-1000°C, under the protection of nitrogen, with a programmed temperature rise rate of 1-10°C / mim, perform high-temperature roasting for 5-10h, and naturally cool down to room temperature. The calcined powder is washed with deionized water for 3 to 6 times, and the obtained solid insoluble matter is orthosilicate Na 2 FeSiO 4 Deammonization material.
Embodiment 3
[0038] Weigh 0.6-3mol of sodium silicate, 0.2-12mol of copper acetate, and 20-400g of acetone in a planetary mill for grinding and mixing for 1-5 hours, and at a speed of 300-500rpm, grind and mix for 2-6 hours to obtain raw material mixed powder body. The raw material mixed powder is placed in a crucible, placed in a vacuum drying oven, and dried at a temperature of 50-150° C. for 1-4 hours to obtain a dry mixed powder. Put the dried mixed powder in a muffle furnace at 700-1000°C, under the protection of nitrogen, with a programmed temperature rise rate of 1-10°C / mim, perform high-temperature roasting for 5-10h, and naturally cool down to room temperature. The calcined powder is washed with deionized water for 3 to 6 times, and the obtained solid insoluble matter is orthosilicate Na 2 CuSiO 4 Deammonization material.
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