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Alkalinity.
Wastewater Problem.
Determine the alkalinity in mg/L CaCOs for DI water and tap water based on the number of digits (...
How much calcium bicarbonate (kg/day) will need to be added per day in water with alkalinity of 30 mg/L CaCO3 (assume for simplicity only bicarbonate alkalinity is present) if 794 kg of Al2(SO4)3 x18H2O is added per week to treat water with coagulation/flocculation in a water treatment plant with capacity of 1 MGD. Consider the following coagulation/flocculation (unbalanced) reactions occur: Al3+ + HCO3– → Al(OH)3 + CO2
A new water treatment facility will be built to supply water to the town of Freemont. The town's population is currently 14,000 and the per capita water use is 100 gal per day. The new facility will be designed to account for increases in both per capita water use and population growth, and projections for water use will be determined for fifty years in the future. The population of the town of Freemont grows at an average rate of 2%...
A new water treatment facility will be built to supply water to the town of Freemont. The town’s population is currently 14,000 and the per capita water use is 100 gal per day. The new facility will be designed to account for increases in both per capita water use and population growth, and projections for water use will be determined for fifty years in the future. The population of the town of Freemont grows at an average rate of 2%...
A water treatment plant with an average flow of Q-1,0 m3/s treats its water with alum at a dose of 30 mg/L. Alum coagulation is used to remove particulate matter, reduce the concentration of organic matter, and reduce the alkalinity of the water according to Equation 10-1. If the organic matter concentration is reduced from 10 mg/L to 2 mg/L. determine the total mass of Al(OH)3 removed per day O 708 kad 652 kg/d 674 O 720 kg • If...
2. Determine the approximate alkalinity (in mg/L as CaCO3) for a water which has 127.3 mg/L of bicarbonate ions and 18.5 mg/L of carbonate ions.
Determine the lime and soda ask dose, in mg/L as CaCOs to soften the following water to a final hardness of 70.0 mg/L as CaCO3. The ion concentrations reported below all as CaCO3. 6-16. Determine the lime and soda ash dose, in mg/L as CaCO3 to soften the following water to a final hardness of 70.0 mg/L as CaCO3. The ion con- centrations reported below are all as CaCO2 Ca2+ 220.0 Mg2+一75.0 HCO3 265.0 CO2 17.0 Answers: Total lime addition-...
2. A dose of 41 mg/L of alum is used in coagulating a turbid water at a water treatment plant treating a flow rate of 32 million gallons per day (mgd). The natural alkalinity of the source water is 10 mg/L (as CaCO3). a. Will the alkalinity be completely consumed in the reaction? If not, then how much alkalinity will be left? If so, then what concentration of caustic soda (NaOH) must be added to avoid a change in the...
You are assigned to operate a drinking water treatment plant which has a capacity of 280 ML per day. The source water is from a river that contains a high concentration of dissolved organic carbon (DOC), (13 mg L-1) and has a high colour (60 HU) but where the alkalinity changes seasonally. In summer to winter the alkalinity is high (> 100 mg L-1 as CaCO3) and in spring after snow has melted in the mountains and the water flows...
please answer number 5 5. The AgNO3 test solution was not used to test the water insoluble but acid soluble unknowns, only the NaOH and Na2CO3 were used. Propose a reason why the AgNO3 was not used in part 3 of the experiment. Discussion/Conclusion (continue on the back of this page if needed) UTA-705 out each test tube at the sink with soap and water using a tes water and then analytical grade water (twice) and reuse the tu water...