Nickel, a heavy metal, is not as frequently heard of in our daily life as iron, silver or lead. It is a silvery-white metal with excellent magnetic properties and ductility. In this chapter, the manufacturer of online water quality monitoring instruments will explore some issues related to nickel pollution in wastewater together with everyone.

What’s the Deal With Nickel Pollution in Wastewater?

First of all, we need to know that the nickel in wastewater mainly exists in the form of divalent ions, such as nickel nitrate, sodium sulfate and nickel salts formed from some inorganic and organic compounds. There are various sources of nickel in wastewater. For instance, wastewater discharged from industries such as metallurgy, mechanical manufacturing, petrochemicals, and chemicals, as well as from sectors like automobiles, steel mills, aircraft manufacturing, ceramics, and glass, all contain nickel.

The methods for treating nickel in wastewater include reverse osmosis, evaporation recovery, micro-electrostatic precipitation, sulfide precipitation and many other different methods. Users can choose the appropriate method to select the equipment according to their own needs.

May I ask if the wastewater can be discharged directly after being treated? No way! All the indicators within the water quality must be standardized. It is necessary to do a good job in online water quality monitoring to ensure that all water quality indicators meet the standards before discharging. The analyzer for monitoring nickel can be the T8000-NI Continuous Nickel Monitor, which is a fully automatic device that does not require human supervision.