TCEQ Wastewater License Exam question n answers graded A+

TCEQ Wastewater License ExamWhat are the steps of the Water Use Cycle? - correct answer Environment --> Water Treatment --> Water Distribution System --> Customer Use --> Wastewater Collection System --> Wastewater Treatment --> Environment What are the benefits of the collection system? - correct answer - Removal of health hazards - Prevention of odors and flies - Cleanliness and appearance - Comfort and convenience Septic vs. Fresh wastewater? - correct answer Septic wastewater doesn't contain dissolved oxygen and is difficult to treat. Fresh wastewater contains dissolved oxygen and is easier to treat, which results in higher quality effluent Inflow - correct answer Surface runoff that enters the collection system Infiltration - correct answer Groundwater that enters the collection system through holes, cracks, etc. What is the average domestic contribution to the collection system? (Per person/day) - correct answer 100 gallons per day What are the four wastewater characteristics? - correct answer Physical, Chemical, Bacteriological, and Radiological Domestic wastewater is ___% water and ___% solids - correct answer 99.9% water, 0.1% solids Settleable solids - correct answer Suspended solids that will settle when wastewater flow is still or slow moving