Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
the stabilization of wastes through the action of microorganisms in the presence of oxygen |
aerobic waste treatment |
|
|
Waste stabilization brought about through the action of micro organisms in the absence of air or oxygen |
Anaerobic waste treatment |
|
|
Human body Wastes and Wastes from toilets urinals soil drains and receptacles intended to receive or retain body wastes. also referred to as sewage. |
Black water |
|
|
Refers to generated waste water which originates from culinary activities, bathing, laundry facilities, deck drains, and other waste drains. |
Gray Water |
|
|
Any equipment on board a ship or craft which is designed to receive and treats sewage to a level acceptable for overboard discharge; or which receives and retain sewage on board for later discharge ashore; or in waters where discharged is permissible. |
Marine Sanitation Device |
|
|
Navy discharge permit requirement applications must be filed how many days prior to the date the discharge is to begin ? how long are they valid for? reapplication is required 180 days in advance of the expiration date. |
180 days ; 5 years |
|
|
Advanced types of sewage systems are defined by the level of sewage treatment they provide. i.e. :Primary treatment - with or without chemicals. Secondary Treatment- biological treatment Tertiary Treatment-??? |
Advanced wastewater treatment |
|
|
Advanced wastewater treatment is also associated with the term ? |
“water reclamation” |
|
|
What is the most primitive of all the individual sewage disposal systems? and is no longer authorized except in field conditions |
Pit Privy |
|
|
What is a variation of the pit privy? |
the bored-hole latrine |
|
|
what are the dimensions of the bored hole latrine? |
10–25 inches diameter; 15-25 feet deep |
|
|
how many chambers are provided in the Imhoff tanks ? |
2 chambers |
|
|
Disinfection of waste water is defined as the addition of sufficient chlorine so that a free chlorine residual of between how many ppm exist after a 30 minute contact time? |
0.5 ppm - 0.7 ppm |
|
|
What treatment is used to remove refractory soluble organics not removed by coagulation? |
Activated carbon treatment |
|
|
Collection Holding and Transfer Systems (CHT’s) holding element tanks are normally sized for a how many hour holding period? with a capacity of of how many gallons? |
12 hour; 2000 gallons |
|
|
What system is comprised of CVF and water closets, macerator/transfer pumps, a stream jacketed evaporator with electrical heaters, an odor treatment system, sludge pump, system controls, and associated plumbing.? |
The GATX system |
