Many industrial wastewaters contain dissolved metals as a result of their manufacturing processes.
Wastewater treatment metal recovery systems are designed to reduce metal contaminants, such as mercury, lead, cadmium, silver, copper and chromium, to meet discharge requirements and/or achieve the water quality level needed for reuse and recycling.
Industries where metal contaminated water is a byproduct of the manufacturing process include:
- printed circuit board manufacturing
- metal finishing
- semiconductor manufacturing
- textile dyes and steel production
As a result of improper treatment prior to discharge, many dissolved metals have been found in harmful concentrations in groundwater which are destined for potable drinking water. In small quantities, certain heavy metals are nutritionally essential for a healthy life, but large amounts of any of them may cause acute or chronic toxicity (poisoning).
NHE, through Lancy Technology, can offer a wide range of treatment technologies depending on the specific contaminant to be reduced.
The continuous build up of the dissolved metals in acidic process solutions has an adverse impact on the etching performance of the solution. Through acid recovery we recycle up to 90% of free acid. Saving cost and sustaining efficiency.
Copper Metal Recovery
We selectively recover copper and other valuable metals and minerals from the acid mine drainage (AMD) process using a high purity cathode.