Treatment method of electroplating sludge
A technology of electroplating sludge and treatment methods, which is applied in sludge treatment, fixed/solidified sludge treatment, water/sludge/sewage treatment, etc., can solve the problems of high cost and large energy consumption, and reduce waste and reduce Bulk volume, low cost effect
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[0023] combined with figure 1 , embodiment 1, the treatment method of a kind of electroplating sludge of the present invention, described preparation method comprises the steps:
[0024] (1) Dissolve polyvinyl alcohol particles in hot water at 95°C to obtain a PVA solution, and cool it naturally for use;
[0025] (2) Take the electroplating sludge and the mineral powder used as the solidified adsorbent, put them in a granulator for mixing and stirring, and at the same time spray an appropriate amount of the PVA aqueous solution prepared in step (1), and stir for 2-30 minutes to form composite electroplating sludge particles;
[0026] (3) Dry the composite electroplating sludge particles obtained in step (2) at 80-120° C. for 6-12 hours to obtain the electroplating sludge / mineral powder composite material.
[0027] A method for treating electroplating sludge, in step (1), the concentration of the PVA solution is 5-15wt.%.
[0028] A method for treating electroplating sludge. ...
Embodiment 2
[0035] Embodiment 2, a kind of treatment method of electroplating sludge, take by weighing 600g drying electroplating sludge and 400g bentonite mix, place in the granulator and stir, spray 400ml 5wt.% PVA aqueous solution simultaneously, open the granulator, make After granulation for 15 minutes, the bonded electroplating sludge composite particles were taken out and placed in an oven at 80°C for 6 hours to obtain composite electroplating sludge particles.
Embodiment 3
[0036] Example 3 A treatment method for electroplating sludge, weighing 600g of oven-dried electroplating sludge and mixing it with 300g of zeolite, placing it in a granulator for stirring, spraying 200ml of 8wt.% PVA aqueous solution at the same time, opening the granulator, and granulating The bonded electroplating sludge composite particles were taken out after 5 minutes and dried in an oven at 100°C for 12 hours to obtain composite electroplating sludge particles.
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