The Use Method of Copper Removal Agent in Ammonia Copper Wastewater

The Use Method of Copper Removal Agent in Ammonia Copper Wastewater

Copper ammonia wastewater is usually formed by the dissolution of copper and ammonia in water in the industrial production process such as metallurgy, chemical industry and electroplating. In these industrial processes, the compounds of copper and ammonia are dissolved in the water, forming a wastewater containing copper ions and ammonia ions. Want the wastewater to meet the discharge standards, then it is necessary to use ammonia copper wastewater copper removal agent.

The main function of copper removal agent in copper ammonia wastewater is to remove the copper ions in the wastewater and make it meet the discharge standard. Copper ammonia wastewater usually comes from the recycling process of printed circuit board, and contains high concentration of [Cu (NH3) 4] 2 +, NH4 + and NH3 H2O complexes, which are extremely stable and difficult to treat.

The specific mechanism of action of copper removal agent in copper-ammonia wastewater

Copper removal agent in copper ammonia wastewater mainly removes the heavy metal ions in the wastewater by chemical precipitation method. Such agents are usually polymer organic compounds that can react with copper ions in wastewater within a specific range of pH values, forming stable insoluble substances and precipitate down, thus reducing the concentration of copper ions in wastewater. In addition, these copper remover can be removed together with other heavy metals such as nickel, mercury, cadmium, etc., with good storage stability and operational safety.

The use method of copper removal agent for copper-ammonia wastewater

1. Before the actual use, a small test of 1L can be done according to the above process.

2. Adjust the PH value between 7-10 when treating wastewater, so that the effect is better.

3. Determine the dosage of recapture agent according to the content of heavy metal ions in the wastewater.

4. It can be added to the wastewater continuously or in batches, and fully stirred evenly, for about 30 minutes.

5. Add an appropriate amount of organic flocculant, can use non-ionic, cationic and anionic type. Stir quickly and then stir slowly.

6. According to the actual situation, most heavy metal ions can be removed by alkali neutralization, and the remaining metal ion complex can be precipitated by heavy metal remover.