wastewater test questions with correct answers

what is the reason for Wastewater to contain large amounts of sand gravel and grit CORRECT ANSWER storm events combined Wastewater is defined as CORRECT ANSWER sanitary Wastewater and stormwater runoff in general the solid content of Wastewater is about CORRECT ANSWER .1% what is the percentage of suspended solids in the total amount of solids CORRECT ANSWER 30% the percentage of dissolved solids in the amount of total solids is about CORRECT ANSWER 70% which type of organisms would most probably be associated with poor treatment or young biomass CORRECT ANSWER 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 CORRECT ANSWER stalked ciliates aerobic bacteria will reproduce and live in an environment that contains only CORRECT ANSWER oxygen anaerobic bacteria reproduce and live only in an environment that completely Lacks CORRECT ANSWER free or dissolved oxygen