Removing heavy metals
Removing heavy metals (Nickel, iron, lead, and chromium) and carcinogenic hydrocarbons (Pyrene, Phenatherene, and Fluoranthene) from contaminated water and effluents have become an important process in making our water bodies free from pollutant. Expanded Clay Aggregate (ECA) or Lightweight Expanded Clay Aggregate (LECA) is used to remove heavy metals from contaminated water to make water portable.
The most widely used techniques for the removal of heavy metals and hydrocarbon from petrochemical industrial effluents are advanced treatment techniques such as:
|Chemical Oxidation |
|Ion exchange |
Most of these techniques have:
|Operational difficulties||High maintenance costs||Use of costly mineral absorbents.|
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