Electroplating wastewater diversion sedimentation and filtration equipment

Abstract

This invention relates to a wastewater diversion, sedimentation, and filtration device for electroplating. It includes a diversion tank for collecting and diverting various types of wastewater generated by the production line; a first reaction regulating tank for stirring the liquid within the tank, connected to the diversion tank; a first acid-base adjusting tank connected to the first reaction regulating tank; a first ion precipitation tank connected to the first acid-base adjusting tank; a first solid-liquid separation filter connected to the first ion precipitation tank; and a first collection device connected to the first solid-liquid separation filter and collecting the produced solids and liquids. This allows for the separate introduction of metal-containing wastewater into the production line via the diversion tank. After treatment, high-purity single hydroxides can be produced for recycling and reuse, reducing the generation of large amounts of residual heavy metal sludge.

Claims

1. An electroplating wastewater diversion sedimentation and filtration device, comprising: a diversion tank for collecting and diverting multiple types of wastewater generated by an electroplating production line; a first reaction conditioning tank including a first stirring device for stirring the liquid in the first reaction conditioning tank, the first reaction conditioning tank being connected to the diversion tank; a first acid-base adjustment tank for adjusting the pH value of the liquid in the tank, the first acid-base adjustment tank being connected to the first reaction conditioning tank via a second connecting pipe; a first ion precipitation tank for settling the internal liquid and precipitating the products, the first ion precipitation tank being connected to the first acid-base adjustment tank via a third connecting pipe; a first solid-liquid separation filter for separating the internal liquid and its precipitates, the first solid-liquid separation filter being connected to the first ion precipitation tank via a fourth connecting pipe; and a first collection device connected to the first solid-liquid separation filter and collecting the solids and liquids produced by the first solid-liquid separation filter.

2. The electroplating wastewater diversion sedimentation and filtration device as described in claim 1, wherein the diversion tank includes a tank body, a plurality of first inlet pipes, a first connecting pipe and a plurality of first valve bodies, each of the first inlet pipes is disposed in the tank body, the first connecting pipe is disposed in the tank body and each of the first inlet pipes is connected to one end of the first connecting pipe, each of the first valve bodies is disposed in each of the first inlet pipes, and the first reaction regulating tank is connected to the diversion tank through the other end of the first connecting pipe.

3. The electroplating wastewater diversion sedimentation and filtration device as described in claim 1, wherein the first collection device comprises a first solid part and a first liquid part, the first solid part being used to collect metal hydroxides and the first liquid part being used to collect filtered water.

4. The electroplating wastewater diversion sedimentation and filtration equipment as described in claim 1, further comprising a second reaction conditioning tank, a second acid-base adjustment tank, a second ion precipitation tank, a second solid-liquid separation filter, and a second collection device. The second reaction conditioning tank includes a second stirring device for stirring the liquid in the second reaction conditioning tank. The second reaction conditioning tank is connected to the diversion tank. The second acid-base adjustment tank is used to adjust the pH value of the liquid in the tank. The second acid-base adjustment tank is connected to the second reaction conditioning tank via a sixth connecting pipe. The second ion precipitation tank is used to allow the internal liquid to settle and precipitate the products. The second ion precipitation tank is connected to the second acid-base adjustment tank via a seventh connecting pipe. The second solid-liquid separation filter is used to separate the internal liquid and its precipitate. The second solid-liquid separation filter is connected to the second ion precipitation tank via an eighth connecting pipe. The second collection device is connected to the second solid-liquid separation filter and collects the solids and liquids produced by the second solid-liquid separation filter.

5. The electroplating wastewater diversion sedimentation and filtration device as described in claim 4, wherein the diversion tank further includes a tank body, a plurality of second inlet pipes, a fifth connecting pipe and a plurality of second valve bodies, each of the second inlet pipes being disposed in the tank body, the fifth connecting pipe being disposed in the tank body and each of the second inlet pipes being connected to one end of the fifth connecting pipe, each of the second valve bodies being disposed in each of the second inlet pipes, and the second reaction regulating tank being connected to the diversion tank via the other end of the fifth connecting pipe.

6. The electroplating wastewater diversion sedimentation and filtration device as described in claim 4, wherein the second collection device comprises a second solid part and a second liquid part, the second solid part being used to collect metal hydroxides and the second liquid part being used to collect filtered water.

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