Reading...
Play button
Play button
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;
10 Cards in this Set
- Front
- Back
|
Comminutors
|
Waste passes through and is broken down by metal teeth prior to entering holding tanks.
|
|
|
Holding tanks
|
Temporary storage areas for waste. Used while in port and when transiting within 12 nautical miles of land. There are four tanks on MT. Whitney. Two fwd with maximum capacity of 9000 gallons each. Two aft with max of 12,000 gallons each.
|
|
|
Aeration systems
|
Fans provide a constant flow of air to the holding tanks to kill anaerobic bacteria. The air from the tanks is vented over the side.
|
|
|
Tank level indicators, alarm system
|
Audio visual alarms are located in the DCC. Alarm is activated when the tank level reaches 90%. There are no tank level indicators.
|
|
|
Sewage ejection pumps
|
Pumps waste from the holding tanks to either the risers or overboard.
|
|
|
Diverter valves
|
Multi-position valves used to align the flow of waste from holding tanks to either the risers or overboard.
|
|
|
Deck discharge connections
|
There are 4 risers located fwd and aft on both port and STBD sponsons.
|
|
|
Explain the three modes of operation of the CHT system.
|
Auto - pumps start when tank level reaches 60% and stops at 30%
Manual 1 - pump will continually run regardless of tank level. Manual 2 - pump will operate until tank level reaches 30% but will not re-start |
|
|
Sewage spill clean-up
|
Clean up is accomplished by authorized personnel only. Protective clothing, "poopy suits" rubber gloves, and boots are worn. Eating, drinking and smoking is prohibited in the area. The spill is sanitized with Betadine. Personnel wash with anti-bacterial soap.
|
|
|
Hydrogen sulfide gas
|
Sharp intense smell of rotten eggs. Area must be immediately evacuated as the fumes are toxic.
|
