METHODS OF TREATING WATER TO REMOVE CONTAMINANTS AND WATER TREATMENT PLANTS FOR THE PRACTICE THEREOF
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United States of America Patent
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Issued Date -
May 11, 2023
app pub date -
Jan 6, 2023
filing date -
Nov 10, 2017
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Abstract
The present disclosure relates to methods of treating water to remove contaminants, including harmful metal ions, and water treatment plants for practicing such methods. In an embodiment, the process includes adding a sulfur-containing, metal-decreasing agent; an iron (III)-containing, metalloid-decreasing agent; forming a solid precipitate from the contaminated water, wherein the solid precipitate includes a solid metal sulfide, a solid iron metalloid, a solid calcium metalloid, or a combination thereof; and separating the contaminated water from the solid precipitate to form purified water.
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