Statistics for Texas Waste Water Treatment Ch#12 Chlorination and Disinfection

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General Stats

This quiz has been taken 26 times
The average score is 15 of 18

Answer Stats

Question	Answer	% Correct
The TCEQ requires at least ________.	1 mg/L residual after 20 minute contact	100%
How many minutes of detention time should a chlorine contact chamber have at peak flow?	20 minutes	100%
Chlorine may be used for which of the following?	All of the above	100%
Disinfection may also be accomplished by which of the following?	All of the above	100%
Chlorine is available as which of the following?	All of the above	100%
Forms of chlorine used in wastewater treatment include which of the following?	All of the above	100%
Chlorine combines with ammonia in wastewater to form ________.	chloramines	100%
Which of the following is a good disinfectant?	Chlorine	100%
At 20°C the HOCl concentration will vary with the pH as follows ________.	pH 7: 80% HOCl	100%
Chlorine equipment shall be capable of which of the following?	All of the above	86%
Chlorine could be used as an aid in trickling filter operation to ________.	breakup a ponding problem	86%
When gas chlorine is added to water, which of the following is formed?	HOCl AND CaCl2	86%
Gas chlorination facilities should be equipped with a ________.	bottle of ammonium hydroxide	71%
If a chlorine dosage of 12 mg/L is added to a wastewater effluent containing ammonia and the chlorine demand is 11.5 mg/L, the residual would be which of the following?	Sufficient AND a monochloramine	71%
The TCEQ allows the reuse of treated wastewater for which of the following?	All of the above	57%
Because UV Light is not a chemical, it ________.	does not alter the physical properties of the water	57%
Reclaimed water piping must be color-coded ________.	purple	43%
Reclaimed water providers must report monthly to TCEQ the ________ and ________ of reclaimed water delivered to a user	volume/quality	29%

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