Sludge ceramsite for heavy metal wastewater treatment, and preparation method
A wastewater treatment and sludge ceramsite technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as poor adsorption performance, achieve strong adsorption, no The effect of secondary pollution and strong adsorption rate
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Embodiment 1
[0028] (1) Use river bottom mud as the main raw material, mix it evenly with fly ash, vermiculite powder, clay, ammonium bicarbonate, and water, then form the raw material into balls, and then sinter at high temperature to obtain porous ceramsite; the high-temperature sintering temperature is 1120°C, Sintering and heat preservation for 13min; the average particle diameter of porous ceramsite is 4mm; in the preparation of porous ceramsite, the mass ratio of river bottom mud, fly ash, water, vermiculite powder, clay, ammonium bicarbonate is 100:58:80:24: 23:1.2;
[0029] (2) Mix humic acid, isopropanol, sodium carbonate, sodium dodecylbenzenesulfonate, absolute ethanol, and deionized water evenly, add to a ball mill, and ball mill for 30 minutes at a speed of 50 rpm to obtain fine humic acid Slurry: In the slurry, the mass ratio of deionized water, nano humic acid, isopropanol, sodium carbonate, sodium dodecylbenzenesulfonate, and absolute ethanol is 100:50:3:1:0.5:4.
[0030] ...
Embodiment 2
[0033] (1) Use river bottom mud as the main raw material, mix it evenly with fly ash, vermiculite powder, clay, ammonium bicarbonate, and water, and then sinter the raw material into balls, and then sinter at high temperature to obtain porous ceramsite; the high-temperature sintering temperature is 1000°C, Sintering and heat preservation for 15min; the average particle size of porous ceramsite is 3mm; in the preparation of porous ceramsite, the mass ratio of river bottom mud, fly ash, water, vermiculite powder, clay, ammonium bicarbonate is 100:50:80:20: 20:1;
[0034] (2) Mix humic acid, isopropanol, sodium carbonate, sodium dodecylbenzenesulfonate, absolute ethanol, and deionized water evenly, add to a ball mill, and ball mill for 30 minutes at a speed of 50 rpm to obtain fine humic acid Slurry; in the slurry, the mass ratio of deionized water, humic acid, isopropanol, sodium carbonate, sodium dodecylbenzenesulfonate, and absolute ethanol is 100:50:3:1:0.5:2;
[0035] (3) A...
Embodiment 3
[0037](1) Use river bottom mud as the main raw material, mix it evenly with fly ash, vermiculite powder, clay, ammonium bicarbonate, and water, then form the raw material into balls, and then sinter at high temperature to obtain porous ceramsite; the high-temperature sintering temperature is 1200°C, Sintering and heat preservation for 10 minutes; the average particle size of porous ceramsite is 5mm; in the preparation of porous ceramsite, the mass ratio of river bottom mud, fly ash, water, vermiculite powder, clay, and ammonium bicarbonate is 100: 70: 80: 30: 25: 1.5;
[0038] (2) Mix humic acid, isopropanol, sodium carbonate, sodium dodecylbenzenesulfonate, absolute ethanol, and deionized water evenly, add to a ball mill, and ball mill for 30 minutes at a speed of 50 rpm to obtain fine humic acid Slurry; in the slurry, the mass ratio of deionized water, nano humic acid, isopropanol, sodium carbonate, sodium dodecylbenzenesulfonate, and absolute ethanol is 100:40:5:1:0.5:4.
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