a cu 2+ Slow-release functional core-shell light aggregate and preparation method thereof
A functional, lightweight aggregate technology, which is applied in the fields of botanical equipment and methods, planting substrates, water/sewage treatment with added substances, etc., which can solve the problems of lack of lightweight aggregates and low utilization rate of solid waste resources such as sludge. , to achieve the effect of improving resource utilization, improving sewage treatment capacity, and promoting self-purification function
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Embodiment 1
[0029] a Cu 2+ The slow-release functional core-shell light aggregate includes an inner core and an outer shell; the mass ratio of the inner core and the outer shell is 1:1, wherein, in terms of mass percentage, the raw material composition of the inner core is: carbonized sludge: 75%, magnesium phosphate cement: 10%, Potassium Sulfate: 2%, Manganese Nitrate: 4%, Sodium Chloride: 4%, Copper Sulfate: 5%; in terms of mass percentage, the raw material composition of the shell is: magnesium phosphate cement: 90%, borax: 10% .
[0030] The above Cu 2+ The slow-release functional core-shell light aggregate is specifically prepared by the following methods:
[0031] 1) According to the above raw material ratio, mix the sludge with magnesium phosphate cement, potassium sulfate, manganese nitrate, sodium chloride, copper sulfate and add water to mix evenly, and then granulate into balls through a ball forming machine. During the granulation process , the rotating speed of the ball f...
Embodiment 2
[0037] a Cu 2+ The slow-release functional core-shell light aggregate includes an inner core and an outer shell; the mass ratio of the inner core and the outer shell is 1:1, wherein, in terms of mass percentage, the raw material composition of the inner core is: carbonized sludge: 70%, magnesium phosphate cement: 8%, Potassium Sulfate: 3%, Manganese Nitrate: 4%, Sodium Chloride: 5%, Copper Sulfate: 10%; in terms of mass percentage, the raw material composition of the shell is: magnesium phosphate cement: 95%, borax: 5% .
[0038] The above Cu 2+ The slow-release functional core-shell light aggregate is specifically prepared by the following methods:
[0039] 1) According to the above raw material ratio, mix the sludge with magnesium phosphate cement, potassium sulfate, manganese nitrate, sodium chloride, copper sulfate and add water to mix evenly, and then granulate into balls through a ball forming machine. During the granulation process , the rotating speed of the ball fo...
Embodiment 3
[0045] a Cu 2+ The slow-release functional core-shell light aggregate includes an inner core and an outer shell; the mass ratio of the inner core and the outer shell is 1:1, wherein, in terms of mass percentage, the raw material composition of the inner core is: carbonized sludge: 80%, magnesium phosphate cement: 5%, Potassium Sulfate: 2%, Manganese Nitrate: 4%, Sodium Chloride: 4%, Copper Sulfate: 5%; by mass percentage, the raw material composition of the shell is: magnesium phosphate cement: 94%, borax: 6% .
[0046] The above Cu 2+ The slow-release functional core-shell light aggregate is specifically prepared by the following methods:
[0047] 1) According to the above raw material ratio, mix the sludge with magnesium phosphate cement, potassium sulfate, manganese nitrate, sodium chloride, copper sulfate and add water to mix evenly, and then granulate into balls through a ball forming machine. During the granulation process , the rotating speed of the ball forming mach...
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