Water purifying composition, and preparation method and application thereof
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A composition and water purification technology, applied in the direction of water pollutants, chemical instruments and methods, water/sewage treatment, etc., can solve the problems of wastewater turbidity removal effect description, etc., achieve low cost, less residue, reduce effluent COD and The effect of BOD
Inactive Publication Date: 2017-09-15
朱燕萍
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However, this invention only discloses the removal effect of the water purifier on specific pollutants in wastewater, and does not illustrate the removal effect of wastewater turbidity, total phosphorus, COD and BOD
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Embodiment 1
[0030] In this embodiment, the water purification composition includes the following components by weight:
[0031]
[0032] Disperse chitosan, ferric sulfate, activated carbon, diatomaceous earth, chitosan, silicon dioxide, aluminum sulfate in water, then add surfactant and stir, then put polyacrylamide (number average molecular weight 10000) and The porogen is subjected to ultrasonication, followed by removal of water and drying to obtain a water purification composition.
Embodiment 2
[0034] In this embodiment, the water purification composition includes the following components by weight:
[0035]
[0036]
[0037] Disperse chitosan, ferric sulfate, activated carbon, diatomaceous earth, chitosan, silicon dioxide, aluminum sulfate in water, then add surfactant and stir, then put polyacrylamide (number average molecular weight 20000) and The porogen is subjected to ultrasonication, followed by removal of water and drying to obtain a water purification composition.
Embodiment 3
[0039] In this embodiment, the water purification composition includes the following components by weight:
[0040]
[0041] Disperse chitosan, ferric sulfate, activated carbon, diatomaceous earth, chitosan, silicon dioxide, aluminum sulfate in water, then add surfactant and stir, then put polyacrylamide (number average molecular weight 5000) and The porogen is subjected to ultrasonication, followed by removal of water and drying to obtain a water purification composition.
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Abstract
The invention provides a water purifying composition and a preparation method and application thereof. The water purifying composition mainly comprises, by weight, 5 to 15 parts of iron sulfate, 20 to 30 parts of activated carbon, 10 to 20 parts of diatomite, 10 to 20 parts of chitosan, 5 to 10 parts of silicon dioxide, 10 to 20 parts of aluminum sulfate, 2 to 5 parts of a surfactant, 40 to 55 parts of polyacrylamide and 2 to 8 parts of a pore-forming agent. When 200 mg of the water purifying composition provided by the invention is applied to treatment of each L of wastewater, the removal rate of effluent turbidity can reach 95% or above; the removal rate of total phosphorus can reach 90% or above; the removal rate of COD can reach 34% or above; the removal rate of BOD is 78% or above; and antibacterial performance reaches 81% or above. The water purifying composition uses widely available raw materials, is low in cost and has good market prospects.
Description
technical field [0001] The invention belongs to the field of water treatment, and relates to a water purification composition, a preparation method and application thereof. Background technique [0002] Water is the source of life, water pollution and shortage of water resources force people to pay more attention to the protection of water resources and the treatment of wastewater. How to make wastewater meet the national discharge standards is an urgent problem to be solved. [0003] At present, in the wastewater treatment process, flocculants are often used to treat wastewater. The traditional four-stage coagulation-sedimentation-filtration-disinfection water treatment process can no longer cope with the current water pollution problems. Therefore, it is necessary to develop a coagulation A water purifying agent with dual functions of adsorption and adsorption, so as to carry out advanced treatment of water pollution. [0004] CN 101979328 A discloses a chitosan composit...
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Application Information
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