1. Justifications of the proposed schemes -the structural problem& the chemical injection locations
2. Design impeller and tank type affecting energy efficiency, cost, flocculation size. Design Diffuser Walls and Baffles used for Minimizing Short Circuiting
3. Design launder type, structure, sludge and scum model
Filtration의 세번째 key concept 이유: (to promote readily biodegradabl
tanks! Blow everything!
HELMSMAN
Passing twelve hundred feet...
EXEC
Blowing main tanks!
HELMSMAN
Twelve hundred fifty feet...
EXT. MONTANA 10
The great sub is being hauled down by the mass of its flooded bow section,
its flanks rushing past us like a freight train headed for Hell.
INT. MONTANA CONTROL ROOM 11
The command crew fights futility for control, everyone shouting and terrified.
EXEC
Mai
so uptight he could
crack nuts with his butt cheeks.
- Permission to come up?
- Yes, Lieutenant.
Stand by main vents.
- Shut out main engines!
- All hands forward!
All hands forward!
Come on, move it.
Come on, move! Move! Faster!
Get a move on, you guys!
Its an alarm, not a blasted cruise!
Get into diving positions!
Blow negative tank.
Stern planes ease to degrees.
Not bad. Practice
is a low cost alternative to propellers. Vertical impeller flocculator has high energy efficiency (it means less power is required) and has low shear stress (lower variation in G). Also it can compact flocs well and has less settling problem at the bottom. Direction of water flow by impeller rotation must be down to prevent settling, and motor is on the top of the tank for easy maintenance.
tanker) : 원유 및 석유의 운반을 주목적으로 하는 선박. 종늑골 구조를 하고
있다. 화물창은 종 격벽과 횡격벽으로 둘러싸인 탱크양식으로 되어 있으며 배관에 의해
서 하역한다. 최근 화학제품이 다량으로 운반되고 있는 경향에 따라 화학제품운반선
(Chemical tank carrier)이 출현하고 있다. - VLCC(Very L