Aerating biological filter pool filler and production thereof
A biological aerated filter and raw material technology, applied in the field of biological aerated filter filler and its preparation, can solve the problems of poor physical properties, reduce the cost of raw materials, unfavorable resource saving, etc., achieve good physical stability, cost reduction, cost reduction effect
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Embodiment 1
[0061] The raw materials used for making the filler of the biological aerated filter for sewage treatment are as follows: 46.5% of clay, 52.5% of iron slag, and 1.0% of carbon black. That is the proportioning of formula 1 in table 5. The production steps are as follows:
[0062] The first step: iron slag drying, ball milling, sieving, mixing raw materials
[0063] Dry the iron slag in the sun, then send it to a ball mill for ball milling, pass through a 200-mesh sieve after grinding, and then put the raw materials prepared according to the weight percentage of each component in a mixer and mix them evenly;
[0064] The second step: filler granulation
[0065] Put the uniformly mixed raw materials on a disc granulator for granulation, the particle size should be controlled at 4mm, the amount of water sprayed during granulation should be controlled at 12% of the weight of the raw materials, and then the granulated particles should be aired for 2 hours;
[0066] Step 3: Filler...
Embodiment 2
[0073] The weight percent of raw materials used for making the biological aerated filter filler for sewage treatment is: 65.0% of clay, 34.0% of iron slag, and 1.0% of carbon black. That is the proportioning of formula 6 in table 5. The production steps are as follows:
[0074] The first step: iron slag drying, ball milling, sieving, mixing raw materials
[0075] Dry the iron slag in the sun, then send it to a ball mill for ball milling, pass through a 200-mesh sieve after grinding, and then put the raw materials prepared according to the weight percentage of each component in a mixer and mix them evenly;
[0076] The second step: filler granulation
[0077] Put the uniformly mixed raw materials on a disc granulator for granulation, the particle size should be controlled at 5mm, the amount of water sprayed during granulation should be controlled at 13% of the weight of the raw materials, and then the granulated particles should be spread out for 2 hours;
[0078] Step 3: Fi...
Embodiment 3
[0085] The weight percentages of the raw materials used to make the biological aerated filter filler for sewage treatment are: 65.0% of clay, 34.0% of iron slag, and 1.0% of carbon black. That is the proportioning of formula 7 in table 5. The production steps are as follows:
[0086] The first step: iron slag drying, ball milling, sieving, mixing raw materials
[0087] Dry the iron slag in the sun, then send it to a ball mill for ball milling, pass through a 200-mesh sieve after grinding, and then put the raw materials prepared according to the weight percentage of each component in a mixer and mix them evenly;
[0088] The second step: filler granulation
[0089] Put the uniformly mixed raw materials on a disc granulator to granulate, the particle size should be controlled at 6mm, and the amount of spray water should be controlled at 14% of the weight of the raw materials during granulation, and then spread the granules to air for 2 hours;
[0090] Step 3: Filler particles e...
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