How can we treat heavy metals in rivers and streams?

Question

Eliana Andrade · Accepted Answer

Chemicals can be used to treat heavy metals.

Let me begin with Ca(OH)2 in water and Metal (+2), like zinc. After the response, Metal + Ca(OH)2 --> Me(OH)2 + #Ca^(+2)# You now possess the solid form of Me(OH)2. Heavy metals in water can also be eliminated chemically by oxidizing hydrogen peroxide with UV light, ozone, etc.

Wesley Alvarado · Answer

undefined Heavy metals in rivers and streams can be treated through various methods including chemical precipitation, ion exchange, adsorption, and phytoremediation. Chemical precipitation involves adding chemicals to the water to form insoluble compounds with the heavy metals, which can then be removed through filtration. Ion exchange involves replacing heavy metal ions in the water with less harmful ions through specialized resin filters. Adsorption utilizes materials like activated carbon to bind and remove heavy metals from the water. Phytoremediation involves using plants to absorb and accumulate heavy metals from the water, which can then be harvested and disposed of properly. Additionally, implementing best management practices to reduce the sources of heavy metal pollution can help prevent further contamination of rivers and streams.