A preparation method of a composite micro-electrolytic filler and a method for treating wastewater
A technology for wastewater treatment and micro-electrolysis, which is applied in special compound water treatment, sterilization/microdynamic water/sewage treatment, water/sewage treatment, etc., can solve the problems of high cost of chemicals, difficult transportation and storage, etc., and achieve enhanced safety Sexuality, convenient preparation, and energy-saving effects
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Embodiment 1
[0033] Embodiment 1: a kind of preparation method of composite micro-electrolytic filler, it adopts following method to prepare:
[0034]Add the iron-carbon composite and copper salt into deionized water, the mass ratio of the iron-carbon composite and copper salt is 1:1, at a temperature of 40°C, a dissolved oxygen concentration of 0.1mg / L, and a stirring rate of 150r / min Substitution and oxidation reactions were carried out for 5 minutes under the same conditions. After the reaction, the solution was separated from solid and liquid, and the obtained solid was freeze-dried for 2 hours under the conditions of cold trap temperature of -40 ° C and vacuum degree of 1 Pa to obtain a composite micro-electrolytic filler.
[0035] Wherein, the iron-carbon composite is prepared by the following method: uniformly mix iron salt ferric chloride, tannic acid, and conductive carbon material carbon nanotubes, put them into a high-energy ball mill jar, and use zirconium balls with a particle ...
Embodiment 2
[0036] Embodiment 2: a kind of preparation method of composite micro-electrolytic filler, it adopts following method to prepare:
[0037] Add iron-carbon composite and copper salt into deionized water, the mass ratio of iron-carbon composite and copper salt is 10:1, under the conditions of temperature 60°C, dissolved oxygen concentration 6mg / L, stirring speed 250r / min Substitution and oxidation reaction were carried out at low temperature for 15 minutes. After the reaction, the solution was separated from solid and liquid, and the obtained solid was freeze-dried for 4 hours under the conditions of cold trap temperature of -80 ° C and vacuum degree of 10 Pa, and the composite micro-electrolytic filler was obtained.
[0038] Wherein, the iron-carbon composite is prepared by the following method: uniformly mix iron salt ferric sulfate, tannic acid, and conductive carbon material graphite, put them into a high-energy ball mill jar, and use zirconium balls with a particle size of 6 ...
Embodiment 3
[0039] Embodiment 3: a kind of preparation method of composite micro-electrolytic filler, it adopts following method to prepare:
[0040] Add iron-carbon composite and copper salt into deionized water, the mass ratio of iron-carbon composite and copper salt is 5:1, under the conditions of temperature 50°C, dissolved oxygen concentration 4mg / L, stirring speed 200r / min Substitution and oxidation reaction were carried out under low temperature for 10 minutes. After the reaction, the solution was separated from solid and liquid, and the obtained solid was freeze-dried for 2.5 hours under the conditions of cold trap temperature of -60 ° C and vacuum degree of 7 Pa, and the composite micro-electrolytic filler was obtained.
[0041] Wherein, the iron-carbon composite is prepared by the following method: uniformly mix iron salt ferric chloride, tannic acid, and conductive carbon material carbon black, put it into a high-energy ball mill jar, and use zirconium balls with a particle size...
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