Anaerobic digester - Study guides, Class notes & Summaries

Wastewater Treatment Operations Exam Questions with Verified Answers (Graded A) Ideal velocity for sanitary sewer collection systems - Answers 2 ft/sec Typical distance between manholes - Answers 300-500 ft Purpose of preliminary treatment processes - Answers Remove course material from wastewater Purpose of primary treatment processes - Answers Remove settleable and floatable materials Purpose of secondary treatment processes - Answers Remove suspended and dissolved solids Sulfur dioxide ...

Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 =...

Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 = ...

Seeding of BOD samples is necessary when samples - Correct Answer (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Correct Answer Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.2...

When Chlorine is combined with water what type of pipe should be used? A. Ductile iron B. Asbestos concrete C. PVC D. Carbon Steel - Answer- C. PVC A good settling sludge would consist of what type of protozoa? A. Rotifers and nematodes B. Amoebas and Flagellates C. Stalked ciliates and mastagoria D. Free swimmers and stalk ciliates - Answer- D. Free swimmers and stalk ciliates What is Phenolphylein used for in titration A. Oxidizer B. Indicator C. Acid reducer to lower pH...

A properly functioning anaerobic digester will achieve a reduction in volatile solids of greater than 50%. ( )True ( )False -Answer True Explanation: A properly functioning anaerobic digester will achieve a reduction in volatile solids of greater than 50%. The careful use of chlorine can correct certain operational problems of a trickling filter. ( )True ( )False -Answer True Explanation: The careful use of chlorine can correct certain operational problems of a trickling filter. T...

Texas Wastewater Class A | 200 Questions with 100% Correct Answers | Verified | Latest Update 2024 Seeding of BOD samples is necessary when samples (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The a...

Fluffy white foam indicates low aerator solids concentration, while leathery brown foam indicates high solids concentration. - Answer T When an anaerobic digester is becoming upset, the first sign will be increased alkalinity and decreased volatile acid concentration - Answer F Surface aerator oxygen transfer efficiency increases as submergence decreases and the oxygen transfer efficiency increases - Answer F When chlorine is used before disinfection for odor control it is not nec...

Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 ...

Texas Wastewater Class A | 200 Questions with 100% Correct Answers | Verified | Latest Update 2024 Seeding of BOD samples is necessary when samples (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The a...