Efficient phosphorus removal compound coagulant
A compounding and high-efficiency technology, applied in the direction of flocculation/sedimentation water/sewage treatment, special treatment targets, adsorption water/sewage treatment, etc., can solve the problems of long aging reaction time, high effluent total phosphorus, waste of energy, etc., and achieve saving Effects of energy consumption, increased stability, and cost reduction
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Embodiment 1
[0033] A high-efficiency phosphorus removal compound coagulant with a ring structure: the outer layer is polyaluminum chloride, the inner layer is porous diatomite, and lanthanum chloride is loaded in the diatomite pores; the weight percentage of each substance is: Polyaluminum chloride 55%, diatomaceous earth 40%, lanthanum chloride 1.5%, and the balance is water.
[0034] The polyaluminum chloride is a commercially available industrial-grade PAC solution, with an alumina content of ≥10%, a basicity of 70%-90%, and a water-insoluble content of ≤0.5%.
[0035] The SiO of diatomaceous earth 2 Content ≥ 70%, bulk density ≥ 0.5g / mL, specific surface area ≥ 40m 2 / g.
[0036] The above-mentioned high-efficiency phosphorus removal compound coagulant is prepared by the following method, including the following steps:
[0037] (1) Grind diatomaceous earth and lanthanum chloride to a particle size of 80-120nm through a nano-grinding machine;
[0038] (2) Dissolve the ground lantha...
Embodiment 2
[0042] A high-efficiency phosphorus removal compound coagulant with a ring structure: the outer layer is polyaluminum chloride, the inner layer is porous diatomite, and lanthanum chloride is loaded in the diatomite pores; the weight percentage of each substance is: Polyaluminum chloride 50%, diatomaceous earth 45%, lanthanum chloride 0.5%, and the balance is water.
[0043] The polyaluminum chloride is a commercially available industrial-grade PAC solution, with an alumina content of ≥10%, a basicity of 70%-90%, and a water-insoluble content of ≤0.5%.
[0044] The SiO of diatomaceous earth 2 Content ≥ 70%, bulk density ≥ 0.5g / mL, specific surface area ≥ 40m 2 / g.
[0045]The above-mentioned high-efficiency phosphorus removal compound coagulant is prepared by the following method, including the following steps:
[0046] (1) Grind diatomaceous earth and lanthanum chloride to a particle size of 80-120nm through a nano-grinding machine;
[0047] (2) Dissolve the ground lanthan...
Embodiment 3
[0051] A high-efficiency phosphorus removal compound coagulant with a ring structure: the outer layer is polyaluminum chloride, the inner layer is porous diatomite, and lanthanum chloride is loaded in the diatomite pores; the weight percentage of each substance is: Polyaluminum chloride 58%, diatomaceous earth 40%, lanthanum chloride 1.0%, and the balance is water.
[0052] The polyaluminum chloride is a commercially available industrial-grade PAC solution, with an alumina content of ≥10%, a basicity of 70%-90%, and a water-insoluble content of ≤0.5%.
[0053] The SiO of diatomaceous earth 2 Content ≥ 70%, bulk density ≥ 0.5g / mL, specific surface area ≥ 40m 2 / g.
[0054] The above-mentioned high-efficiency phosphorus removal compound coagulant is prepared by the following method, including the following steps:
[0055] (1) Grind diatomaceous earth and lanthanum chloride to a particle size of 80-120nm through a nano-grinding machine;
[0056] (2) Dissolve the ground lantha...
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