Waste Water Operator Certification Study Guide Grade 1 Already Passed

Waste Water Operator Certification
Study Guide Grade 1 Already Passed
WasteWater Sources & Characteristics:




What is the most common reason for a wastewater to contain intermittent large amounts of sand,

gravel, and grit? ✔✔storm events




WasteWater Sources & Characteristics:




Combined wastewater is defined as ✔✔sanitary wastewater and stormwater runoff




WasteWater Sources & Characteristics:




In general, the solids content in wastewater is about ✔✔0.1%




WasteWater Sources & Characteristics:




In general, what is the % of suspended solids in the total amount of solids ✔✔30%

,WasteWater Sources & Characteristics:




Generally, the % of dissolved solids in the amount of total solids is about ✔✔70%




WasteWater Sources & Characteristics:




Which type of organisms would most probably be associated with poor treatment or young

biomass ✔✔amoebas




WasteWater Sources & Characteristics:




Which type of organisms would most probably be associated with very clear plant effluent. low

BOD and low amounts of suspended solids ✔✔stalked cilates




Basic WasteWater Treatment:




Aerobic bacteria will reproduce and live in an environment that contains only ✔✔oxygen

, Basic WasteWater Treatment:




Anaerobic bacteria will reproduce and live only in an environment that completely lacks ✔✔free

or dissolved oxygen




Basic WasteWater Treatment:




The biochemical oxygen demand (BOD) test usually has a specific time of ✔✔5 days




Basic WasteWater Treatment:




An Imhoff cone measures ✔✔volume of settleable solids




Basic WasteWater Treatment:




Septic conditions are caused by ✔✔anaerobic bacteria