On-site Wastewater Treatment Systems Quiz

Which bacteria thrive in an oxygen-rich environment?

• Sulfur-reducing bacteria

• Methanogenic bacteria

• Aerobic bacteria

• Anaerobic bacteria

What is the main function of a disposal field?

• To store grey water

• To treat wastewater biologically

• To distribute effluent for absorption or evaporation

• To collect black water

What is the typical material used for constructing traditional septic tanks?

• Steel

• Fiberglass

• Plastic

• Concrete

What is the purpose of a gas baffle in a septic tank?

• To prevent gas from decomposing sewage

• To increase the tank's capacity

• To filter solids from the effluent

• To vent odors from the tank

What is the recommended interval for cleaning a plate filter in a septic tank?

• Every year

• Every month

• Every six months

• Every two years

What is the main advantage of a multi-chamber septic tank over a single-chamber tank?

• It requires less maintenance

• It is easier to transport

• It has less solids in the liquid leaving the tank

• It is cheaper to install

What is the Long Term Acceptance Rate (LTAR) used for?

• To assess the soil's ability to treat effluent over a long period

• To calculate the daily flow rate

• To measure the depth of the disposal field

• To determine the size of the septic tank

What is the main purpose of an indexing valve in a pumped system?

• To increase the pump's efficiency

• To filter solids from the effluent

• To alternate the flow of effluent to different disposal lines

• To measure the effluent flow rate

What is the primary function of a siphon in a non-pumped system?

• To prevent odors from escaping

• To increase the effluent flow rate

• To filter solids from the effluent

• To transport liquid from one level to another using atmospheric pressure

What is the main advantage of using a Flout dosing system?

• It is easier to maintain

• It is cheaper to install

• It does not require a power supply

• It has a longer lifespan