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Treatment method and treatment device of cyanogen-containing chromium-containing electroplating wastewater
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A technology for electroplating wastewater and wastewater treatment, which is applied in the treatment of cyanide-containing and chromium-containing electroplating wastewater, and in the field of cyanide- and chromium-containing electroplating wastewater treatment devices. , Improve the effect of processing efficiency
Active Publication Date: 2015-02-04
铜陵市海林管理咨询有限公司
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[0007] However, the above-mentioned disclosed patents still cannot provide a treatment method and a treatment device capable of simultaneously treating the above three types of electroplating wastewater.
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Embodiment 1
[0084] The treatment of electroplating wastewater in an electroplating factory has a daily discharge of 2,000 tons. Among them, the water quality of the electroplating wastewater in the electroplating factory is shown in Table 1.
[0087] The electroplating waste water of this electroplating factory is processed according to the following steps now:
[0088] Collect general electroplating wastewater, cyanide-containing electroplating wastewater a...
Embodiment 2
[0102] The treatment of electroplating wastewater in an electroplating factory has a daily discharge of 2,000 tons. Among them, the water quality of the electroplating wastewater in the electroplating factory is shown in Table 1.
[0105] The electroplating waste water of this electroplating factory is processed according to the following steps now:
[0106] Collect general electroplating wastewater, cyanide-containing electroplating wastewater an...
Embodiment 3
[0120] The treatment of electroplating wastewater in an electroplating factory has a daily discharge of 2,000 tons. Among them, the water quality of the electroplating wastewater in the electroplating factory is shown in Table 5.
[0123] The electroplating waste water of this electroplating factory is processed according to the following steps now:
[0124] Collect general electroplating wastewater, cyanide-containing electroplating wastewater an...
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Abstract
The invention discloses a treatment method of cyanogen-containing chromium-containing electroplatingwastewater. The treatment method comprises the following steps: collecting common electroplating waste, cyanogen-containing electroplating waste and chromium-containing electroplating wastewater; performing flocculation treatment and sedimentation treatment on common electroplating wastewater respectively and performing solid-solution treatment, then, adsorbing supernatant liquid and performing reverse osmosis treatment; performing cyanogen-breaking treatment on the cyanogen-containing electroplating wastewater to obtain pre-treated cyanogen-containing electroplating wastewater, and introducing the pre-treated cyanogen-containing electroplating wastewater into common electroplating wastewater to obtain comprehensive electroplating wastewater; treating the comprehensive electroplating wastewater as the common electroplating wastewater; performing chromium removal treatment on the chromium-containing electroplating wastewater to obtain pre-treated chromium-containing electroplating wastewater; and treating the chromium-containing electroplating wastewater as the common electroplating wastewater. The treatment method of the cyanogen-containing chromium-containing electroplating wastewater can be used for improving the treatment efficiency of the electroplating wastewater, recycling the electroplating wastewater in a cyanogen-breaking process, reducing the addition of agents in an electroplating wastewater treatment process, reducing the resource waste and lowering the treatment cost. Besides, the invention further provides a treatment device.
Description
technical field [0001] The invention relates to the field of electroplating wastewater treatment, in particular to a method for treating cyanide-containing and chromium-containing electroplating wastewater and a device for treating cyanide- and chromium-containing electroplating wastewater. Background technique [0002] At present, electroplating wastewater is mainly composed of wastewater and waste liquid discharged from electroplating factories (or workshops), such as rinsing water for plated parts, waste bath liquid, equipment cooling water, and surface flushing water. Due to many types of plating, cumbersome process, complex water quality, and difficult control of components, electroplating wastewater mainly contains heavy metal ions such as chromium, cadmium, nickel, copper, zinc, gold, silver and cyanide, etc. These electroplating wastewater are carcinogenic and teratogenic , Mutagenic and highly toxic substances have caused great harm to the living environment of huma...
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