Question
In: Civil Engineering
client has a groundwater supplu with chlorides of 5000 MG\L, lots of hardness, and a few...
client has a groundwater supplu with chlorides of 5000 MG\L, lots
of hardness, and a few bacteria. Create treatment.
Solutions
Expert Solution
Chloride can be removed from drinking water by distillation, reverse osmosis or deionization, Boiling, carbon adsorption filters. Distillation systems work by removing chloride and dissolved solids from the water by distillation.Reverse Osmosis is the best process to remove salts such as chloride. RO process works by forcing the water through a membrane that blocks larger ions, such as chloride, but allows water molecules to pass through. Deionization Systems (Demineralization) work by removing chloride ions by adsorbing them onto anion-exchange resins. These systems adsorb sulfate, chloride and other anions from the water. Because these resins preferentially adsorb sulfate ions, their effectiveness at removing chloride will be negatively impacted if sulfate concentrations are high.
The hardness of water can be classified into two types:
- Temporary Hardness
- Permanent Hardness
The hardness can be removed by boiling, by clarks method, Ion exchange process, calgons process.
Ally Wells answered 7 months agoRelated Solutions
A groundwater supply has the following analysis: Ca2+ = 94 mg/l HCO3- = 317 mg/l Mg2+...
A groundwater supply has the following analysis: Ca2+ = 94 mg/l
HCO3- = 317 mg/l Mg2+ = 24 mg/l SO42- = 67 mg/l Na+ = 14 mg/l C1- =
24 mg/l Calculate the quantities of lime and soda ash for
excess-lime softening, and the carbon dioxide reacted for
neutralization by two-stage recarbonation. Assume that the
practical limits of hardness removal for calcium are 30 mg/1 as
CaCO3 and for magnesium are 10 mg/1 as CaCO3 and that
three-quarters of the...
if the concentration of Mg2+ in water is 36.6 mg/L, what is the hardness of the...
if
the concentration of Mg2+ in water is 36.6 mg/L, what is the
hardness of the water aa mg/L CaCO3?
Given a water sample with the following concentrations, calculate the hardness in meq/L and mg/L as...
Given a water sample with the following concentrations,
calculate the hardness in meq/L and mg/L as CaCO3
Ca2+= 17 mg/L
CO32-= 3.4 mg/L
Water has total hardness of 155 mg/L as CaCO3 and contains 0.004 M HCO3- at pH...
Water has total hardness of 155 mg/L as CaCO3 and
contains 0.004 M HCO3- at pH 7. What is the
carbonate hardness and non-carbonate hardness in mg/L as
CaCO3? Would you use lime softening or lime-soda
softening for this water and why?
A solution has a pH of 7.30 and an alkalinity of 25 mg/L as CaCO3. Essentially...
A solution has a pH of 7.30 and an alkalinity of 25 mg/L as
CaCO3. Essentially all of the alkalinity is contributed by the
carbonate system. The water also contains 10–4.00 M Fe2+ (5.5 mg
Fe2+/L). To remove the iron, oxygen is injected into the solution,
converting the Fe2+ to Fe3+; the Fe3+ then precipitates as ferric
hydroxide (Fe(OH)3(s)) according to the following reaction:
Fe2+ + 0.25 O2(aq) + 2.5 H2O ⇌ Fe(OH)3(s) + 2 H+
What is the pH...
A drinking water sample has pH of 7.9, 173 of mg/HCO3- L, 3mg/L of CO2(aq) and...
A drinking water sample has pH of 7.9, 173 of
mg/HCO3- L, 3mg/L of CO2(aq) and
negligible CO32- . Calculate the alkalinity
of the water in unit of mg/L as CaCO3
1. It is estimated that codeine has a maximum water solubility of 9000 mg/L. a) Calculate...
1. It is estimated that codeine has a maximum water solubility
of 9000 mg/L.
a) Calculate the pH and %
ionization of a saturated solution of codeine (pKb =
5.80).
b) Will more, or less, codeine dissolve when adding it to a
solution containing…
i. a strong acid? Explain!
ii. a strong base? Explain!
1. It is estimated that codeine has a maximum water solubility of 9000 mg/L. a) Calculate...
1. It is estimated that codeine has a maximum water solubility
of 9000 mg/L.
a) Calculate the pH and %
ionization of a saturated solution of codeine (pKb =
5.80).
b) Will more, or less, codeine dissolve when adding it to a
solution containing…
i. a strong acid? Explain!
ii. a strong base? Explain!
Assume that a chemical of concern has a concentration of 12 mg/L in drinking water. Determine...
Assume that a chemical of concern has a concentration of 12 mg/L
in drinking water. Determine the dose of the chemical for adults
and children. What is the cancer risk associated with this exposure
if the slope factor is determined to be 0.065 (mg/kg-d)-1 for oral
exposure? If 10,000 individual consumed this water over their
lifetime what number would likely get cancer?
1. A client has Demerol 150 mg IM every 6 hours as needed for pain. The...
1. A client has Demerol 150 mg IM every 6 hours as needed for
pain. The pharmacy provided Demerol 100 mg per mL. How many
milliliter(s) should the nurse draw up for one dose?
2. The doctor has ordered: Synthroid 250 mcg PO every day. The
available scored tablets are: Synthroid 0.25 mg. How many tablet(s)
should the nurse administer for one dose?
3. The provider orders Amoxicillin 400 mg PO bid. The medication
comes as 200 mg per mL....
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Year Cash Flow 0 −$9,700 1 5,800 2 2,500 3 3,400 &nb
- In a two – story building, an exterior column is to be designed for a service...
- Explain the use of neural networking modeling in predictive analytics. Discuss a real-life example of where...
- Boarder line and antisocial disorder are perhaps the most research personality disorder.What are the most common...
- Read at least 2 academically reviewed articles and Write an annotated bibliography paper on Master Budgeting
- Why normalization and referential integrity are important principles when designing relational databases?
- Respond to the following in a minimum of 175 words: Discuss what elements should be present...
ADVERTISEMENT