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One method of removing phosphate from wastewater effluent is to precipitate itwith aluminium sulfate (alum). A...

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Chemistry

One method of removing phosphate from wastewater effluent is toprecipitate itwith aluminium sulfate (alum). A possiblestoichiometry (but not exact because aluminium andphosphate canform many different chemical materials) is:
2 PO43- + Al2(SO4)3  2 AlPO4 + 3SO42-

If the concentration of phosphate (PO43-) is 30 mg/L, how many kg of alum must bepurchased annually to treat40L/s of wastewater? How many kg/yr of solid precipitate will beformed (drybasis) if all of the phosphate is precipitated asAlPO4?

Answer & Explanation Solved by verified expert
4.3 Ratings (800 Votes)
The volume of waste water to be treated annually 40 L second X 3600 x 24 X 365 As the number of days in an year 365 the number of hours in a day 24 and number of seconds in an hour 3600 The    See Answer
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