Operation of Wastewater Treatment Plants book (Best answer)2023 graded A+

Operation of Wastewater Treatment Plants book (Best answer)2023 graded A+ 1 - correct answer How much education does an operator need? 1. Depends largely on the type of treatment facility and also on local certification and entry-level job requirements 2. Depends on availability and costs of attending local educational institutions 3. Depends on the faculty at the local training company 4. Depends on the operator's ability and time to learn. 4 - correct answer Which treatment units in WWTP are designed an operated to remove sludge and scum? 1. Disinfection treatment units 2. pre-aeration treatment units 3. preliminary treatment units 4. primary treatment units. 4 - correct answer What are aerobic bacteria? 1. Bacteria capable of spreading disease 2. bacteria that cause algae to bloom 3. Bacteria that live and reproduce in an environment containing no free or dissolved oxygen 4. Bacteria that will live and reproduce only in an environment containing oxygen that is available for their respiration. 2 - correct answer What is pH? 1. An expression of the hardness of a liquid 2. An expression of the intensity of the basic or acidic condition of a liquid 3. An expression of the odor intensity emitted from a liquid 4. An expression of the rate of putrefaction of a liquid. 2 - correct answer What is a storm sewer? 1. A Pipe or conduit intended to carry WW or waterborne wastes from homes, businesses, and industries to the treatment works 2. A separate pipe, conduit, or open channel that carries runoff from storms, surface drainage, and street wash, but does not include domestic and industrial wastes 3. A sewer designed to carry both sanitary wastewaters and stormwater or surface water runoff 4. The seepage of groundwater into a sewer system including service connections. 3 - correct answer What is the purpose of primary treatment? 1. To freshen the WW and to help remove oils and greases 2. to measure and record flows 3. to remove settleable and floatable materials 4. To remove suspended and dissolved solids.