Method for preparing surplus activated sludge-based activated carbon water treatment agent
A technology of residual activity and water treatment agent, which is applied in the direction of adsorption water/sewage treatment, chemical instruments and methods, and other chemical processes, and can solve the problems of preparing residual activated sludge-based activated carbon water treatment agent, etc. Non-toxic, easy to obtain and sufficient raw materials
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Embodiment 1
[0010] Excess activated sludge-based activated carbon (100 mesh, specific surface area 943m 2 / g) 70g, inorganic polyaluminum chloride 30g, lime (150 mesh) 20g, alum 10g, silica sol 30g, water appropriate amount.
[0011] Prepare the water treatment agent according to the following steps: (1) Mix the remaining activated sludge-based activated carbon, inorganic polyaluminum chloride, lime, and alum evenly according to a certain ratio; (2) Weigh 30g of silica gel solution, add 30g of water to form a bonding agent agent, and then added to the sample in step (1), fully mixed and placed in an 80 ° C drying oven for air pre-oxidation for 12 hours, and then taken out after natural cooling; (3) the pre-oxidized sample was 5 °C / min to raise the temperature to 400 °C, keep the temperature for 2 hours for roasting, and take it out after natural cooling.
[0012] The water treatment agent is used to purify the oily sewage of the refined oil depot, 500ML, the chemical oxygen demand (COD) ...
Embodiment 2
[0014] Excess activated sludge-based activated carbon (100 mesh, specific surface area 943m 2 / g) 70g, inorganic polyaluminum chloride 40g, lime (150 mesh) 30g, alum 20g, silica sol 40g, water appropriate amount.
[0015] Prepare the water treatment agent according to the following steps: (1) Mix the remaining activated sludge-based activated carbon, inorganic polyaluminum chloride, lime, and alum evenly according to a certain ratio; (2) Weigh 40g of silica gel solution, add 40g of water to form a bonding agent agent, and then added to the sample in step (1), fully mixed and placed in an 80 ° C drying oven for air pre-oxidation for 12 hours, and then taken out after natural cooling; (3) the pre-oxidized sample was 5 °C / min to raise the temperature to 400 °C, keep the temperature for 2 hours for roasting, and take it out after natural cooling.
[0016] The water treatment agent is used to purify the oily sewage of the refined oil depot, 500ML, the COD is 2374, add 2.5g of the ...
Embodiment 3
[0018] Excess activated sludge-based activated carbon (100 mesh, specific surface area 943m 2 / g) 80g, inorganic polyaluminum chloride 40g, lime (150 mesh) 20g, alum 10g, silica sol 30g, water appropriate amount.
[0019] Prepare the water treatment agent according to the following steps: (1) Mix the remaining activated sludge-based activated carbon, inorganic polyaluminum chloride, lime, and alum evenly according to a certain ratio; (2) Weigh 30g of silica gel solution, add 30g of water to form a bonding agent agent, and then added to the sample in step (1), fully mixed and placed in an 80°C drying oven for air pre-oxidation for 16 hours, and then taken out after natural cooling; (3) the pre-oxidized sample was 5 °C / min to raise the temperature to 400 °C, keep the temperature for 2 hours for roasting, and take it out after natural cooling.
[0020] The water treatment agent is used to purify the oily sewage of the refined oil depot, 500ML, the COD is 2374, add 2.5g of the wa...
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