Method and device for recovering nickel resource and water resource in nickel plating wastewater

A recovery device and recovery method technology, applied in metallurgical wastewater treatment, ion-exchange water/sewage treatment, nickel sulfate, etc., can solve problems such as affecting the ion-exchange efficiency and nickel resource purity, and achieve burden reduction, high purity, and low energy consumption. Effect

Active Publication Date: 2010-11-17
江门市瑞期精细化学工程有限公司
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  • Abstract
  • Description
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Problems solved by technology

The ion exchange method does not require strict pretreatment and can realize the reuse of nickel resources and water resources. However, in the ion exchange process, a small amount of impurity metals such as copper will participate in the exchange, which will affect the ion exchange efficiency and the purity of the recovered nickel resources.

Method used

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  • Method and device for recovering nickel resource and water resource in nickel plating wastewater
  • Method and device for recovering nickel resource and water resource in nickel plating wastewater
  • Method and device for recovering nickel resource and water resource in nickel plating wastewater

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example 1

[0040] Example 1: Nickel plating rinsing water contains 419 mg / l of nickel, pumped into the nickel resource recovery device, nickel ions are ion-exchanged with the nickel high-selectivity resin, nickel resources are adsorbed on the nickel high-selectivity resin, use 10-15% Sulfuric acid washes down the nickel resources, and the resin is regenerated with 1.5mol / l sodium hydroxide. The eluent contains 66g / l of nickel, and the exchanged water contains 0.11mg / l of nickel.

[0041] The operating principle of the nickel-plating waste water nickel resource and water resource recovery device of the present invention, with reference to the appended figure 2 , image 3 shown;

[0042] 1. Before production, all pumps are turned on automatically, and all valves are closed.

[0043] 2. Container A and container B are used in series, container A→container B

[0044] First open the valves 3, 11, 7, 8, 6, 16, pump the nickel rinsing water to the nickel recovery device, the nickel water en...

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Abstract

The invention relates to a method and a device for recovering nickel resource and water resource in nickel plating rinsing wastewater. The method is characterized by ensuring that nickel ions and nickel highly selective resin generate ion exchange by using the nickel highly selective resin in a process of recovering the nickel plating rinsing wastewater resource, the nickel resource is absorbed on the nickel highly selective resin; under the condition of wasting the nickel resource by using a reclaiming agent, the invention has reasonable process design, low energy consumption and high recovered nickel resource purity, and can meet the requirements on the nickel resource for on-line use; in addition, water obtained by exchange can be directly used in productions of nickel plating, alloy, base copper, acid copper, thermal desorption, ultrasonic wave, deplating cleaning and the like without being treated by active carbon, thereby further lightening the load of environment protection treatment.

Description

technical field [0001] The invention relates to a water pollution control technology, in particular to a method and a device for recovering nickel resources and water resources from nickel-plating waste water. Background technique [0002] The recovery of nickel resources and water resources from nickel plating rinse water in the electroplating industry is both environmentally friendly and economical, and meets the needs of clean production. At present, the water pollution control technologies for treating nickel-containing wastewater mainly include: chemical precipitation method, biological method, electrochemical method, reverse osmosis membrane method, ion exchange method, etc. Among them, the chemical precipitation method is to add a precipitant such as hydroxide to the nickel-containing wastewater, so that the nickel metal becomes sludge in the form of precipitation. The biological method is similar to the chemical precipitation method. Metal precipitation turns into s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/42C01G53/10C02F103/16
Inventor 郭常文张雄洪条民
Owner 江门市瑞期精细化学工程有限公司
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