Filter material having phosphor adsorbing and biological membrane function and its preparing method
A technology of biological film hanging and filter material, applied in the field of treatment system, can solve the loss and loss of phosphorus adsorption surface, only suitable for the removal of organic matter in sewage, high sintering cost, to solve the problem of disposal and solve the problem of gray water separation. Effect
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Embodiment 1
[0022] The raw material is fly ash from a power plant in Shanghai, and its composition is as follows: CaO is artificially adjusted to 19.3%, MgO is 7.6%, Fe 2 o 3 8.8%, Al 2 o 3 16.7%, SiO 2 was 46.9%. Put 100 grams of sieved 200-mesh fly ash and 0.5 grams of solidifying agent sodium silicate into the mixing container, mix evenly and spray 15 grams of water, and then spray 5 grams of water after stirring for 5 minutes, and continue stirring until it becomes dense. Firm clumps. After being tested and placed at a height of 0.5m without breaking, the mixture is put into a high-speed rotary granulator for granulation. After molding, it is naturally cured for 2 days, during which water is sprayed every 7 hours to maintain the water content of the granules at 10%. The finished filter material has a compressive strength of 4Mpa and a specific gravity of 1.44g / cm 3 , The particle size is between 1-5mm. According to the commonly used Langmuir method, the phosphorus adsorption c...
Embodiment 2
[0028] The raw material is fly ash from a power plant in Xiamen, and its composition is as follows: CaO is artificially adjusted to 5.3%, MgO is 3.8%, Fe 2 o 3 7.9%, Al2 o 3 25.8%, SiO 2 was 54.9%. Put 100 grams of sieved 200-mesh fly ash and 3 grams of calcium silicate as a curing agent into the mixing container, mix evenly and spray 25 grams of water, and then spray 5 grams of water after stirring for 10 minutes, and continue stirring until it becomes dense. Firm clumps. After being tested and placed at a height of 0.5m without breaking, the mixture is put into a high-speed rotary granulator for granulation. Natural curing for 7 days after forming, during which water is sprayed every 12 hours to maintain the water content of the granules at 40%. The finished filter material has a compressive strength of 1.5Mpa and a specific gravity of 1.43g / cm 3 , The particle size is between 1-5mm. The phosphorus adsorption capacity measured by the commonly used Langmuir method was ...
Embodiment 3
[0030] The raw material is fly ash from a power plant in Shenzhen, and its composition is as follows: CaO is manually adjusted to 15.2%, MgO is 1.8%, Fe 2 o 3 2.7%, Al 2 o 3 25.4%, SiO 2 was 51.1%. Put 100 grams of sieved 200-mesh fly ash and 1.5 grams of curing agent calcium silicate into the mixing container, mix evenly and spray 20 grams of water, and then spray 5 grams of water after stirring for 8 minutes, and continue stirring until it becomes dense. Firm clumps. After being tested and placed at a height of 0.5m without breaking, the mixture is put into a high-speed rotary granulator for granulation. After forming, it is naturally cured for 5 days, during which water is sprayed every 8 hours to maintain the water content of the granules at 15%. The finished filter material has a compressive strength of 2Mpa and a specific gravity of 1.43g / cm 3 , The particle size is between 1-5mm. According to the commonly used Langmuir method, the phosphorus adsorption capacity ...
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