Residual sludge disintegration agent and preparation method and application thereof
A technology of excess sludge and cracking agent, which is applied in sludge treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. It can solve the problems of long processing time of excess sludge, poor cracking effect, and high treatment cost. Achieve the effect of solving disposal and environmental pollution, reducing efficiency and good thermal stability
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Embodiment 1
[0025] 1) After taking a certain amount of fly ash to remove the floating impurities on the surface, mix the fly ash and magnesium chloride according to the mass ratio of 5:1, then add the mixture into deionized water (solid-liquid mass ratio 1:4), and stir continuously Inject ammonia solution under the conditions until the pH of the solution is 10.5, and carry out electron beam irradiation treatment after fully stirring. The irradiation dose is 11kGy, and the irradiation time is 0.5min. to room temperature, filtered, and dried to obtain solid A;
[0026] 2) Combine the solid A obtained in step (1) with NaNO 3 After mixing according to the mass ratio of 1:1, add it to deionized water at 58°C (solid-to-liquid mass ratio: 1:6), and add Fe to the aqueous solution after fully stirring. 3 o 4 (the amount added is 3% of the mass of solid A), and stirred rapidly for 10s. Then Na was added to the solution 2 CO 3 (the amount added is 5% of the mass of solid A) and NaOH (the amount...
Embodiment 2
[0037] 1) After taking a certain amount of fly ash to remove the floating impurities on the surface, mix the fly ash and magnesium chloride according to the mass ratio of 6:1, then add the mixture into deionized water (solid-liquid mass ratio 1:5), and keep stirring Inject ammonia solution under the conditions until the pH of the solution is 10.7, and carry out electron beam irradiation treatment after fully stirring. The irradiation dose is 12kGy, and the irradiation time is 1min. Cool to room temperature, filter, and dry to obtain solid A;
[0038] 2) Combine the solid A obtained in step (1) with NaNO 3 After mixing according to the mass ratio of 1:1.5, add it to deionized water at 59°C (solid-to-liquid mass ratio: 1:7), and add Fe to the aqueous solution after fully stirring. 3 o 4 (the amount added is 4% of the mass of solid A), and stirred rapidly for 11s. Then Na was added to the solution 2 CO 3 (the amount added is 6% of the mass of solid A) and NaOH (the amount ad...
Embodiment 3
[0049] 1) After taking a certain amount of fly ash to remove the floating impurities on the surface, mix the fly ash and magnesium chloride according to the mass ratio of 7:1, then add the mixture into deionized water (solid-liquid mass ratio 1:6), and keep stirring Inject ammonia solution under the conditions until the pH of the solution is 11, and carry out electron beam irradiation treatment after fully stirring. The irradiation dose is 13kGy, and the irradiation time is 1.5min. to room temperature, filtered, and dried to obtain solid A;
[0050] 2) Combine the solid A obtained in step (1) with NaNO 3 After mixing according to the mass ratio of 1:2, add it to deionized water at 60°C (solid-to-liquid mass ratio: 1:8), and add Fe to the aqueous solution after fully stirring. 3 o 4 (the addition amount is 5% of the mass of solid A), and stir rapidly for 12s. Then Na was added to the solution 2 CO 3 (the amount added is 7% of the mass of solid A) and NaOH (the amount added...
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