Cyanogen removing agent and preparation method and application thereof
A technology of activated carbon and polymerized ferric sulfate, which is used in chemical instruments and methods, water/sludge/sewage treatment, water pollutants, etc. problem, to achieve the effect of enhancing the cyanide removal effect, increasing the flocculation speed and the sedimentation speed.
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[0022] The present invention also provides a kind of preparation method of cyanide removal agent, and active carbon, FeSO 4 ·7H 2 O, polyferric sulfate, polyaluminum chloride, SnCl 4 、CuSO 4 ·5H 2 O, Co(NO 3 ) 2 ·6H 2 O, polyacrylamide, CaCl 2 and kaolin, after mixing according to the above composition ratio, stirring at room temperature until uniformly mixed, the stirring speed is 2000-3000r / min, and the stirring time is 10-15min, and the cyanide removal agent is prepared.
[0023] The present invention also provides an application of a cyanide removal agent in the treatment of coking wastewater. Specifically, the cyanide removal agent is mixed with water in a mass ratio of 1:(3-4), and the cyanide removal agent is prepared Aqueous solution: add the aqueous solution of cyanide removal agent to the biochemical raw water after biochemical treatment, stir at 20-35°C for 5-20 minutes, and then let it stand for 5-20 minutes to obtain the supernatant, which can realize the r...
Embodiment 1
[0025] A kind of cyanide removal agent described in embodiment 1, by mass fraction, comprises a kind of cyanide removal agent provided by the present invention, by mass fraction, comprises activated carbon: 15%, FeSO 4 ·7H 2 O: 12%, polyferric sulfate: 30%, polyaluminum chloride: 12%, SnCl 4 : 6%, CuSO 4 ·5H 2 O: 5%, Co(NO 3 ) 2 ·6H 2 O: 7%, polyacrylamide: 5%, CaCl 2 : 3% and kaolin: 5%; Among them, the mesh number of activated carbon is 200-300 mesh, the iodine adsorption value of activated carbon is ≥800mg / g, the moisture content is ≤10%, and the ash content is ≤7%; the mesh number of polyferric sulfate is 80- 100 mesh, the mass percentage of ferric sulfate in polyferric sulfate is 20%-22%; the mesh number of polyaluminum chloride is 50-80 mesh, the Al in polyaluminum chloride 2 o 3 The mass percentage is 27-28%.
[0026] The present invention also provides a kind of preparation method of cyanide removal agent, and active carbon, FeSO 4 ·7H 2 O, polyferric sulfate,...
Embodiment 2
[0032] Embodiment 2 provides a kind of cyanide removal agent, by mass fraction, comprises, gac: 10%, FeSO 4 ·7H 2 O: 10%, polyferric sulfate: 20%, polyaluminum chloride: 20%, SnCl 4 : 10%, CuSO 4 ·5H 2 O: 10%, Co(NO 3 ) 2 ·6H 2 O: 10% and polyacrylamide: 10%; Among them, the mesh number of activated carbon is 200-300 mesh, the iodine adsorption value of activated carbon is ≥800mg / g, the moisture content is ≤10%, and the ash content is ≤7%; the mesh number of polyferric sulfate 80-100 mesh, the mass percentage of ferric sulfate in polyferric sulfate is 20%-22%; the mesh of polyaluminum chloride is 50-80 mesh, the Al in polyaluminum chloride 2 o 3 The mass percentage is 27-28%.
[0033] The present invention also provides a kind of preparation method of cyanide removal agent, and active carbon, FeSO 4 ·7H 2 O, polyferric sulfate, polyaluminum chloride, SnCl 4 、CuSO 4 ·5H 2 O, Co(NO 3 ) 2 ·6H 2 O and polyacrylamide, the above ingredients were mixed in proportion, ...
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