A kind of modified banana peel coagulant and preparation technology thereof
A preparation process, technology of banana peel, applied in the fields of flocculation/sedimentation water/sewage treatment, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of poor stability of natural organic polymer coagulants, and achieve Improve coagulation effect, easy to achieve, no secondary pollution effect
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Embodiment 1
[0021] Dry and pulverize the banana peels, pass through a 4-mesh sieve to obtain powdered banana peels, and set aside. At a stirring speed of 50 rpm to 100 rpm, 35L of 2% sodium hydroxide solution was added to the above 5Kg powdered banana peel, stirred for 5 minutes to obtain a soaking solution, and then heated for 2 hour, the heating temperature is 60° C. to obtain the banana peel extract, which is set aside. At a stirring speed of 100 rpm to 200 rpm, mix 3Kg of ferrous sulfate heptahydrate with 1L of water, stir for 15 minutes, add 0.1Kg of oxidant, and continue stirring for 3 minutes to obtain a modifier solution ,spare. At a stirring speed of 100 rpm to 200 rpm, mix the above-mentioned banana peel extract with the modifier solution, stir for 5 minutes, and then heat for 30 minutes at a heating temperature of 50°C. Hours, the modified banana peel liquid coagulant was prepared.
Embodiment 2
[0023] Dry and pulverize the banana peels, pass through a 4-mesh sieve to obtain powdered banana peels, and set aside. At a stirring speed of 50 rpm to 100 rpm, 60L of 5% sodium hydroxide solution was added to the above 5Kg powdered banana peel, stirred for 5 minutes to obtain a soaking solution, and then heated for 1 hour, the heating temperature is 55° C. to obtain the banana peel extract, which is set aside. At a stirring speed of 100 rpm to 200 rpm, mix 10Kg of ferrous sulfate heptahydrate with 5L of water, stir for 15 minutes, add 0.4Kg of oxidant, and continue stirring for 10 minutes to obtain a modifier solution ,spare. At a stirring speed of 100 rpm to 200 rpm, mix the above-mentioned banana peel extract with the modifier solution, stir for 10 minutes, then heat for 20 minutes at a heating temperature of 40°C, cool to room temperature, and then At a stirring speed of 50 rpm to 100 rpm, add 0.02Kg of a stabilizer, continue stirring for 1 minute, and leave to mature at...
Embodiment 3
[0025] Dry and pulverize the banana peels, pass through a 4-mesh sieve to obtain powdered banana peels, and set aside. At a stirring speed of 50 rpm to 100 rpm, add 23L of sodium hydroxide solution with a mass fraction of 10% to the above 8Kg powdered banana peel, stir for 3 minutes to obtain a soaking solution, and then heat for 0.3 hour, the heating temperature is 60° C. to obtain the banana peel extract, which is set aside. At a stirring speed of 100 rpm to 200 rpm, mix 3Kg of ferrous sulfate heptahydrate with 2L of water, stir for 10 minutes, add 0.2Kg of oxidant, and continue stirring for 10 minutes to obtain a modifier solution ,spare. At a stirring speed of 100 rpm to 200 rpm, mix the above-mentioned banana peel extract with the modifier solution, stir for 5 minutes, then heat for 30 minutes at a heating temperature of 50°C, cool to room temperature, and then At a stirring speed of 50 rpm to 100 rpm, add 0.007Kg of stabilizer, continue stirring for 3 minutes, and leav...
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