PMT 108 Principles of water Test
4 Exam |62 Accurate Q’s and A’s
About how much percentage of organic material does Primary treatment of
domestic wastewater contain? - -65% organic material
- Which term describes human body wastes from toilets, urinals and soil
drains; also referred to as sewage? - -Black water
- Which term describes wastewater that originates from culinary activities,
bathing and laundry facilities deck drains and other waste drains? - -Grey
Water
- When discharging wastewater into the environment what does any entity
require before doing so? - -NPDES Permit (National Pollutant Discharging
Elimination System)
- Who issues a NPDES Permit? - -EPA
- How many days prior to the expiration date must one file an NPDES
Permit? - -180 days
- How long is an NPDES Permit valid for? - -5 years
- Which term describes a small covered, pit lines with brick or stone
designed to allow leaching out? - -Cesspool
- Which term describes break or cut up solids to such size that they can be
returned to the wastewater without danger of clogging pumps or piping or
affecting subsequent treatment devices? (two words) - -Comminuting
devices
- Which term includes grinders, cutters, or shredders? (2 words) - -
Comminuting devices
- Describe the health and personal protective protective requirements for
wastewater treatment personnel - -- Immunizations
- No hand to mouth contact while in direct source of contamination
- PPE for spills
- 4 purposes of wastewater treatment - -- Protect community,
- prevent contamination,
- maintain clean water,
- conserve water
, - Which term: Wastewater or other liquid partially or completely treated or in
its natural state flowing out of a reservoir, basin, sewage treatment plant,
industrial plant or marine sanitation device - -Effluent
- Which term: Human body wastes from toilets, urinals and soil drains; also
referred to as sewage - -Black Water
- Which term: A motor driven grinder used to pulp sewage solids before they
enter the Marine Sanitation Device - -Comminutor
- Which term: Requires the use of discharge permits for all wastewater
producers - -NPDES
- What is the navy policy regarding wastewater? - -OPNAVINST 5090.1
- What is the Army TM regarding wastewater? - -TM 5-814-3
- Which term describes: Disposal system that contains two chambers vice
baffles - -Imhoff tank
- Which term describes: Any treatment process in which unit operations are
added to the flow scheme following conventional secondary treatment - -
Advanced wastewater treatment
- What are 3 immunizations required for wastewater treatment personnel? -
-- Polio
- tetanus,
- diphtheria
- What term: Sludge obtained from plain sedimentation tanks, essentially
the settleable solids in the raw sewage, can become septic and cause
offensive odors - -Raw sludge
- What term: An economically effective process to increase the sludge's
concentration and decrease the sludge's volume by removing some free
water to the extent where the sludge remains in the fluid state - -Thickening
- What term: The stage of treatment where the sludge contains about 90%
organic material - -Secondary
- What term: Sludge disposal method that is added to the effluent to kill
pathogens - -Chlorination
- What term: Sludge disposal method that reduces toxicity to aquatic life - -
Dechlorination
4 Exam |62 Accurate Q’s and A’s
About how much percentage of organic material does Primary treatment of
domestic wastewater contain? - -65% organic material
- Which term describes human body wastes from toilets, urinals and soil
drains; also referred to as sewage? - -Black water
- Which term describes wastewater that originates from culinary activities,
bathing and laundry facilities deck drains and other waste drains? - -Grey
Water
- When discharging wastewater into the environment what does any entity
require before doing so? - -NPDES Permit (National Pollutant Discharging
Elimination System)
- Who issues a NPDES Permit? - -EPA
- How many days prior to the expiration date must one file an NPDES
Permit? - -180 days
- How long is an NPDES Permit valid for? - -5 years
- Which term describes a small covered, pit lines with brick or stone
designed to allow leaching out? - -Cesspool
- Which term describes break or cut up solids to such size that they can be
returned to the wastewater without danger of clogging pumps or piping or
affecting subsequent treatment devices? (two words) - -Comminuting
devices
- Which term includes grinders, cutters, or shredders? (2 words) - -
Comminuting devices
- Describe the health and personal protective protective requirements for
wastewater treatment personnel - -- Immunizations
- No hand to mouth contact while in direct source of contamination
- PPE for spills
- 4 purposes of wastewater treatment - -- Protect community,
- prevent contamination,
- maintain clean water,
- conserve water
, - Which term: Wastewater or other liquid partially or completely treated or in
its natural state flowing out of a reservoir, basin, sewage treatment plant,
industrial plant or marine sanitation device - -Effluent
- Which term: Human body wastes from toilets, urinals and soil drains; also
referred to as sewage - -Black Water
- Which term: A motor driven grinder used to pulp sewage solids before they
enter the Marine Sanitation Device - -Comminutor
- Which term: Requires the use of discharge permits for all wastewater
producers - -NPDES
- What is the navy policy regarding wastewater? - -OPNAVINST 5090.1
- What is the Army TM regarding wastewater? - -TM 5-814-3
- Which term describes: Disposal system that contains two chambers vice
baffles - -Imhoff tank
- Which term describes: Any treatment process in which unit operations are
added to the flow scheme following conventional secondary treatment - -
Advanced wastewater treatment
- What are 3 immunizations required for wastewater treatment personnel? -
-- Polio
- tetanus,
- diphtheria
- What term: Sludge obtained from plain sedimentation tanks, essentially
the settleable solids in the raw sewage, can become septic and cause
offensive odors - -Raw sludge
- What term: An economically effective process to increase the sludge's
concentration and decrease the sludge's volume by removing some free
water to the extent where the sludge remains in the fluid state - -Thickening
- What term: The stage of treatment where the sludge contains about 90%
organic material - -Secondary
- What term: Sludge disposal method that is added to the effluent to kill
pathogens - -Chlorination
- What term: Sludge disposal method that reduces toxicity to aquatic life - -
Dechlorination
