water treatment exam QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES VERIFIED ANSWERS ALREADY GRADED A+

water treatment exam QUESTIONS
AND CORRECT DETAILED
ANSWERS WITH RATIONALES
VERIFIED ANSWERS ALREADY
GRADED A+

,What regulation is 62-699? - CORRECT ANSWER-Treatment Plant
Classification and staffing.


What regulation is 62-550? - CORRECT ANSWER-Drinking water
standards
monitoring
reporting


What regulation is 62-555? - CORRECT ANSWER-Permitting
construction
operatiing
maintenance


What regulation is 62-602? - CORRECT ANSWER-Water or
Domestic Waste Water treatment Plant operators
Distribution system operators.


What regulation is 62-560? - CORRECT ANSWER-Requirements for
public water systems that are out of compliance.


What is the purpose of adding Carbon Dioxide to Softened water? -
CORRECT ANSWER-Restores the Carbonate Balance.

,How is lime sludge dewatered? - CORRECT ANSWER-By Solar
Lagoons

, How can Non-Carbonate Hardness be achieved? - CORRECT
ANSWER-By Sodium Carbonate, Ion Exchange, Membrane
Separation, Sodium Hydroxide.


What is Selective Carbonate Removal? - CORRECT ANSWER-
Removal of Calcium Bicarbonate Hardness at PH of 9.6.


Noncarbonate hardness present in water means? - CORRECT
ANSWER-The Total Hardness is greater than the Total Alkalinity.


What processes will remove Non-Carbonate Hardness? - CORRECT
ANSWER-Ion Exchange Softening, Sodium Carbonate (Na2CO3),
and Sodium Hydroxide (NAOH).


What Constituents that can cause Non-Carbonate Hardness? -
CORRECT ANSWER-Calcium Sulfate (CASO4), Calcium Chloride
(CACL2), Magnesium Chloride (MGCL2), Magnesium Sulfate
(MGSO4), Strontium Sulfate (SRSO4).


What is required for Selective Carbonate Hardness? - CORRECT
ANSWER-Calcium Oxide (OC)Lime and Sodium Carbonate
(NA2CO3)Soda Ash.