Method of making and using adsorbent to remove heavy metal from waste water
AssigneeKing Abdulaziz City for Science and Technology (KACST)
InventorSaad A Al-Jlil
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Abstract
The present disclosure describes using the naturally present dissolved chemicals as precipitants from local water sources to form an adsorbent. The adsorbent may be collected and used at the right pH and temperature to purify and remove heavy metals from waste water. Once the heavy metals are removed the concentration of the heavy metals are estimated in the reusable water. The local authority acceptable level heavy metal containing reusable water is reclaimed for non-human consumption. This disclosure enables to conserve water and provide a cheap and an effective method to decontaminate industrial waste water.
Claims11
A method, comprising:
- Cooling a volume of water having an initial temperature to a desired temperature in a cooling tower;
- Aerating the volume of water containing a dissolved chemical for a specific time to precipitate a first precipitant to form a waste;
- Cooling and aerating said volume of water to precipitate a second precipitant to form the waste;
- Oxidizing said volume of water to precipitate a third precipitant to form the waste;
- Drying the waste to remove moisture to form a dry waste;
- and
- Crushing the dry waste to have at least one of a specific surface area, a cumulative pore volume, and a specific pore diameter to form an adsorbent.
Dependencies are inferred from the claim text.