A wastewater contains 81 mgl phosphate ions and is treated

Assignment Help Chemistry

Reference no: EM13345512

When discussing water treatment, we learned that high phosphate concentrations are often observed and it is a problem due to its ability to promote eutrophication. One method for removing the phosphate is with a chemical coagulant like alum (Al2(SO4)3¬.) While the reaction series is actually much more complicated, we will assume that the alum dissociates to form aluminum ions and inert sulfate ions. The aluminum cations will react with any available phosphate to form aluminum phosphate and any leftover aluminum ions will reaction with water to precipitate as aluminum hydroxide.

Al2(SO4)3(s) -> 2 Al3+(aq) + 3 SO42-(aq)
Al3+(aq) + PO43-(aq)-> AlPO4(s)
Al3+(aq) + 3 H2O(l) -> Al(OH)3(s) + 3 H+(aq)
A wastewater contains 8.1 mg/L phosphate ions and is treated with an 18 mg/L alum solution. Calculate the mass of inorganic sludge (aluminum precipitates) produced in one day in a plant treating 22,000 m3 of wastewater.

Reference no: EM13345512

Questions Cloud

Tablets of ki were distributed to people living around : tablets of ki were distributed to people living around chernobyl one week after the nuclear reactor explosion occurred

What is the first step in drawing the lewis structure for a : what is the first step in drawing the lewis structure for a molecule or

If a 26 reaction vessel initially contains 725 of : if a 2.6 reaction vessel initially contains 725 of cyclopropane at 485 how long will it take for the partial pressure

Property of materials find the density for germanium ge : property of materials find the density for germanium ge semiconductor atoms give that its lattice constant a-5.66aring

A wastewater contains 81 mgl phosphate ions and is treated : when discussing water treatment we learned that high phosphate concentrations are often observed and it is a problem

What total volume of gas measured at 29degc and 774 torr is : when sodium bicarbonate nahco3s is heated sodium carbonate is produced with the evolution of water vapor and carbon

A gaseous mixture of o2 and kr has a density of 1102 gl at : a gaseous mixture of o2 and kr has a density of 1.102 gl at 420 torr and 300. k. what is the mole percent o2 in the

A large flask with a volume of 936 ml is evacuated and : a large flask with a volume of 936 ml is evacuated and found to have a mass of 134.66g. it is then filled to a pressure

What are some of the advantages and disadvantages of this : in discussing solar-thermal so far weve mostly focused on the large central-station power plants that generate

User Account

All Pages