A treatment equipment for nickel or phosphorus waste liquid

Abstract

The invention discloses a treatment device for waste liquid containing nickel or phosphorus. The device includes a waste liquid nickel treatment unit, a gas treatment unit, a liquid treatment unit and a solid treatment unit. The bottom surface of the waste liquid nickel treatment unit is provided with deposits exhaustion hole. The present invention can cooperate with the method of Chinese patent authorization announcement number CN103159364B, so that it can achieve mature processing technology, low cost and simple operation in practice, which changes the current international one that is not mature, low cost, low energy consumption, simple and easy to implement The current status of the waste liquid recycling phosphorus or nickel metal treatment method, the extracted phosphorus can be used as chemical fertilizer for secondary use, can realize zero discharge of phosphorus-containing electroless nickel plating waste liquid, and reduce the environmental protection pressure of enterprises in the electroless nickel plating industry; On the one hand, the metal lifting carrier can be accommodated in the processing tank described in the present invention, and the whole equipment has the purpose of simple structure, easy operation and realizing industrial operation.

Description

technical field [0001] The invention relates to a processing device, in particular to a processing device for waste liquid containing nickel or phosphorus. Background technique [0002] With the rapid development of the electronics industry in my country, the demand for electroless nickel plating on the surface of electronic and precision mechanical products has also increased substantially. The more prominent, the State Environmental Protection Administration (GB8978-1996 1998.01.01 implementation) stipulates in the comprehensive sewage discharge standard that the discharge of phosphorus (P) is 1 ml (1PPm). According to this discharge standard, it is difficult to achieve a stable level with conventional phosphorus treatment processes. emission standards and are expensive to dispose of. [0003] At present, the treatment of phosphorus in electroless nickel plating waste liquid mostly adopts the precipitation method. The precipitation method is to adjust the pH to above 10 wit...

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Problems solved by technology

[0002] With the rapid development of the electronics industry in my country, the demand for electroless nickel plating on the surface of electronic and precision mechanical products has also increased significantly. The more prominent, the State Environmental Protection Administration (GB8978-1996 1998.01.01 implementation) stipulates in the comprehensive sewage discharge standard that the discharge of phosphorus (P) is 1 ml (1PPm). According to this discharge standard, it is difficult to achieve a stable level with conventional phosphorus treatment processes. Emission standards and high disposal costs

[0003] At present, the treatment of phosphorus in electroless nickel plating waste liquid mostly adopts the precipitation method. The precipitation method is to adjust the pH to above 10 with sodium oxide, add hydrogen peroxide to aerate, add lime and flocculant to filter through the filter press, and the phosphorus (P ) sandwiched in the sludge, this treatment method not only has a long treatment period, consumes a lot of chemical materials, wastes a lot of phosphorus resources, but also causes secondary pollution

[0004] Furthermore, a method for directly extracting phosphorus in phosphorus-containing electroless nickel plating waste solution is disclosed in the open literature of Chinese patent authorization announcement number CN103159364B, and then existing equipment cannot realize the realization of this method, and then the inventor develops and relates to design equipment

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