With the rapid development of industrialization, a large amount of industrial wastewater is discharged into the environment, which contains various harmful substances, such as copper ions. Once the copper ions in the water body reach a certain concentration, it not only poses a threat to the ecological environment, but also has adverse effects on human health. Therefore, it is particularly important to treat the sewage of excessive copper ions, and this article will introduce how to deal with high copper ions.
1. The hazard of excessive copper ions
Excessive copper ions will cause poisoning of organisms in the water body and affect the ecological balance. At the same time, long-term drinking of water containing excessive copper ions may cause copper poisoning in the human body, manifested as nausea, vomiting and other symptoms, and in severe cases, it may damage liver, kidney and other organs.
Second, the treatment method
At present, the common strategies for sewage treatment exceeding the standard copper ions include chemical precipitation, ion exchange, membrane separation and biological methods.
1. Chemical precipitation method: by adding appropriate precipitants, copper ions are converted into insoluble precipitates, so as to achieve the removal of copper ions. Although this method is easy to operate, it may carry the risk of secondary contamination.
2. Ion exchange method: the adsorption effect of ion exchange resin is used to exchange the copper ions in the wastewater with other ions on the resin, so as to remove the copper ions. Although this method has a good treatment effect, the cost is high.
3. Membrane separation method: using specific membrane materials to separate copper ions in wastewater from other substances. Although the separation is good, the cost of selecting and replacing the membrane material is high.
4. Biological method: use the metabolic action of microorganisms to convert copper ions in wastewater into harmless or low-toxicity substances. This method is environmentally friendly and low-cost, but the processing time is relatively long.
III. Conclusion
Treating wastewater with excessive copper ions is a long-term and arduous task. In practice, how to treat the high copper ion in the sewage should be selected according to the specific situation of the wastewater, and the technical engineering personnel can be consulted to analyze the sewage and then formulate a solution to achieve the ideal treatment effect.