A kind of flocculant for treating food sewage and its preparation method and application
A food sewage and flocculant technology, which is applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of low price, difficult biodegradation and high treatment cost of inorganic flocculants, and achieve improved flocculation net catchability, less residual amount, The effect of making raw materials cheap
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Embodiment 1
[0025] Dissolve dimethyl diallyl ammonium chloride and acrylamide monomer in distilled water at a ratio of 1:1 to form a monomer solution with a concentration of 20wt%. After ultrasonic shock treatment for 10 minutes, transfer it to a three-necked flask and pass nitrogen gas for 10 minutes. , to exclude oxygen from the system. Weigh respectively 0.06wt% potassium persulfate and 0.01wt% sodium sulfite as initiator, and 0.01wt% cerium sulfate as catalyst, put the above three raw materials into deionized water, mix and stir to fully dissolve them. Take liquid water glass with a modulus of 2.8, then dilute the above water glass with water to adjust the content to a silica content of 2wt%, and pass the solution through an exchange column filled with American Amberlite IR-120 cation exchange resin to obtain a sodium oxide content of 0.8wt%. , a dilute solution of silica sol at pH 3.6. Add the prepared initiator and catalyst mixed solution into the monomer solution, control the temp...
Embodiment 2
[0028]Dissolve dimethyl diallyl ammonium chloride and acrylamide monomer in distilled water at a ratio of 1:5 to form a 30wt% concentration monomer solution. After ultrasonic shock treatment for 10 minutes, transfer it to a three-necked flask and let nitrogen gas flow for 10 minutes. , to exclude oxygen from the system. Weigh respectively 0.03wt% potassium persulfate and 0.03wt% sodium sulfite as initiator, and 0.03wt% cerium sulfate as catalyst, put the above three materials into deionized water, mix and stir to fully dissolve them. Take the solid water glass with a modulus of 3.0 and put it into a high-pressure steamer to feed water vapor, then keep 3 atmospheres for pressure steaming reaction to generate liquid water glass, dilute with water to adjust the content to a silicon dioxide content of 5wt%, and pass the solution through filling Dowex 50 cation-exchange resin exchange columns to obtain a dilute silica sol solution with a sodium oxide content of 0.5 wt% and a pH of ...
Embodiment 3
[0031] Dissolve dimethyl diallyl ammonium chloride and acrylamide monomer in distilled water at a ratio of 1:10 to form a monomer solution with a concentration of 40wt%. After ultrasonic shock treatment for 10 minutes, transfer it to a three-necked flask and inject nitrogen gas for 10 minutes. , to exclude oxygen from the system. Weigh respectively 0.01wt% potassium persulfate and 0.06wt% sodium sulfite as initiator, and 0.06wt% cerium sulfate as catalyst, put the above three raw materials into deionized water, mix and stir to fully dissolve them. Take the solid water glass with a modulus of 3.5 and put it into a high-pressure steamer to feed water vapor, and then keep 6 atmospheres for pressure steaming reaction to generate liquid water glass, dilute with water to adjust the content to 10wt% of the silicon dioxide content, and pass the solution through the NKC -9 macroporous strongly acidic cation exchange resin exchange column, to obtain a sodium oxide content of 0.32wt%, pH...
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