How can arsenic be removed from aqueous waste streams? Often times, ferric chloride is added to such a stream. The ferric chloride aids in the formation

How can arsenic be removed from aqueous waste streams?
Often times, ferric chloride is added to such a stream. The ferric chloride aids in the formation
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Answer :

Often times, ferric chloride is added to such a stream. The ferric chloride aids in the formation of floc to  agglomerate fine arsenic particles that can then be removed by mechanical means.
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