Primary clarifiers - Study guides, Class notes & Summaries
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Texas Wastewater B Exam Questions And Answers
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Texas Wastewater B Exam Questions And Answers 
 
Primary Clarifiers - ANS In an activated sludge treatment system, primary treatment processes include the: 
 
Removal of Inorganic material from grit - ANS In a washing grit remover, the grit is moved slowly by screw conveyors up an inclined channel in order to? 
 
90% or above - ANS An efficient primary clarifier is expected to remove ? of the influent settleable solids. 
 
Adequate DO at surface at all times - ANS Proper operation o...
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Texas Wastewater B exam study guide with complete solution
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Primary Clarifiers - correct answer In an activated sludge treatment system, primary treatment 
processes include the: 
Removal of Inorganic material from grit - correct answer In a washing grit remover, the grit is 
moved slowly by screw conveyors up an inclined channel in order to? 
90% or above - correct answer An efficient primary clarifier is expected to remove ? of the 
influent settleable solids. 
Adequate DO at surface at all times - correct answer Proper operation of a facultative pond ...
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Texas Wastewater B exam questions with correct answers
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Primary Clarifiers CORRECT ANSWER In an activated sludge treatment system, primary treatment processes include the: 
 
Removal of Inorganic material from grit CORRECT ANSWER In a washing grit remover, the grit is moved slowly by screw conveyors up an inclined channel in order to? 
 
90% or above CORRECT ANSWER An efficient primary clarifier is expected to remove ? of the influent settleable solids. 
 
Adequate DO at surface at all times CORRECT ANSWER Proper operation of a facultative pond syste...
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Operation of Wastewater Treatment prep complete exam questions and verified answers 2024/2025
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Operation of Wastewater Treatment prep complete exam questions and verified answers 2024/2025 
An Imhoff cone is used to measure________solids. 
A. suspended 
B. colloidal 
C. volatile 
D. settleable 
D. settleable 
 
(Operation of Wastewater Treatment Plants, Volume 1 
by Kenneth D. Kerri) 
 
 
A _____ flume is widely used for measuring wastewater flow. 
Parshall 
 
(Operation of Wastewater Treatment Plants, Volume 1 
by Kenneth D. Kerri) 
 
 
Velocity of flow in a grit channel must be reduced ...
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TCEQ Wastewater (Class D) License Prep Exam Guide 2024
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Minimum velocity required to keep solids in suspension? - 2ft/sec 
 
Minimum required velocity a inverted siphon requires? - 3ft/sec 
 
Two most common pipe materials used in the collection system? - Clay & PVC 
 
OSHA minimum standards for shoring, sloping, or trench boxes are? - 5ft or deeper 
 
If the trench is _____ or deeper, use a portable ladder or other means of exit. - 4ft or deeper 
 
The ladder most extend ____ feet above the trench and be secured. - 3ft 
 
Ladders must be within ____...
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Waste Water Operator Treatment 1 Certification Study Guide Grade 1 Q&A
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Waste Water Operator Treatment 1 Certification Study Guide Grade 1 Q&A 
WasteWater Sources & Characteristics: 
 
What is the most common reason for a wastewater to contain intermittent large amounts of sand, gravel, and grit? 
storm events 
 
 
WasteWater Sources & Characteristics: 
 
Combined wastewater is defined as 
sanitary wastewater and stormwater runoff 
 
 
WasteWater Sources & Characteristics: 
 
In general, the solids content in wastewater is about 
0.1% 
 
 
WasteWater Sources & Chara...
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TCEQ Wastewater (Class D) License Prep
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TCEQ Wastewater (Class D) License 
 
Prep 
 
Minimum velocity required to keep solids in suspension? - 2ft/sec 
 
Minimum required velocity a inverted siphon requires? - 3ft/sec 
 
Two most common pipe materials used in the collection system? - Clay & PVC 
 
OSHA minimum standards for shoring, sloping, or trench boxes are? - 5ft or deeper 
 
If the trench is _____ or deeper, use a portable ladder or other means of exit. - 4ft or deeper 
 
The ladder most extend ____ feet above the trench and be ...
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TCEQ Wastewater (Class D) License Prep || with Error-free Solutions.
- Exam (elaborations) • 2 pages • 2024
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Minimum velocity required to keep solids in suspension? correct answers 2ft/sec 
 
Minimum required velocity a inverted siphon requires? correct answers 3ft/sec 
 
Two most common pipe materials used in the collection system? correct answers Clay & PVC 
 
OSHA minimum standards for shoring, sloping, or trench boxes are? correct answers 5ft or deeper 
 
If the trench is _____ or deeper, use a portable ladder or other means of exit. correct answers 4ft or deeper 
 
The ladder most extend ____ feet...
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Wastewater Practice Exam With Already Passed Answers.
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When organic wastes are discharged to receiving waters, O2 is depleted by _____. - Answer bacteria 
 
Hydrogen sulfide gives off an odor similar to____. - Answer rotten eggs 
 
3 diseases potentially carried by wastewater are _____. - Answer typhoid fever, disentery, cholera 
 
Immediate first aid for butrns is to ____. - Answer flood with cold water 
 
What most likely causes an electic motor failure? - Answer mopisture 
 
What mixed liquor characteristics indicate a healthy acti...
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Wastewater Treatment Operator Certification Test #3 Questions And Answers |Complete Solutions
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Wastewater Treatment Operator 
Certification Test #3 Questions And Answers 
|Complete Solutions 
The typical suspended solids removal rate in the primary clarifier is 5 to 10% 
True or False - answerFalse (v.1 pg 129) 
Over-greasing a pump motor can lead to damage. 
True or False - answerTrue (v.2 pg 404) 
A healthy digester gas consists mostly of hydrogen sulfide. 
True or False - answerFalse (v.2 pg 158) 
Coliform results are reported as MPN/100 ml 
True or False - answerTrue (v.2 pg 556) 
Inc...
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