Wastewater Test Questions and Answers 2024/2025 with complete solution

Wastewater Test Questions and Answers 2024/2025 with complete solution what is the reason for Wastewater to contain large amounts of sand gravel and grit storm events combined Wastewater is defined as sanitary Wastewater and stormwater runoff in general the solid content of Wastewater is about .1% what is the percentage of suspended solids in the total amount of solids 30% the percentage of dissolved solids in the amount of total solids is about 70% which type of organisms would most probably be associated with poor treatment or young biomass amoebas which type of organisms would most probably be associated with very clear plant effluent low biochemical oxygen demand and low amounts of suspended solids stalked ciliates aerobic bacteria will reproduce and live in an environment that contains only oxygen anaerobic bacteria reproduce and live only in an environment that completely Lacks free or dissolved oxygen the biochemical oxygen demand test usually has a specific time of 5 days and imhoff cone measures volume of settable solids septic conditions are caused by anaerobic bacteria scum is usually removed in the primary treatment stage when domestic Wastewater enters natural Waters what species depletes most of the oxygen aerobic bacteria once the oxygen is depleted in a natural body of water which organisms take over anaerobic bacteria the major gas produced by anaerobic decomposition as methane another name for primary treatment is sedimentation digester gas is __________ when mixed with air in the proper proportions extremely explosive a pond that is used to treat rate raw Wastewater is called a waste stabilization pond