The document discusses a proposal to use reverse osmosis to filter seawater into pure water. It describes reverse osmosis as a membrane filtration method that uses pressure to force seawater through a selective membrane, allowing water to pass through while retaining dissolved salts and other solutes. The proposal outlines using a water tank, plastic hose, pressure pump, and membrane to filter seawater. The budget for the project is estimated to be $250 and a team is needed but it can also be built individually, though it will take more time. The goal is to produce pure, tasty water from seawater in an environmentally friendly way without chemicals or electricity.

1. NAME: ABD AMMAR AR-RASYID BIN RAZALI
COURSE: National Diploma Marine Engineering ‘A’

2.  Seawater filter is the process of removing minerals
from seawater, leaving behind clean water. There are
three types of seawater filter;
 Reverse osmosis
 Thermal distillation
 Electrodialysis
In my proposal I’ll use reverse osmosis.

3.  Reverse osmosis (RO) is a membrane-
technology filtration method that removes many
types of large molecules and ions from solutions
by applying pressure to the solution when it is on
one side of a selective membrane. The result is
that the solute is retained on the pressurized side
of the membrane and the pure solvent is allowed
to pass to the other side. To be "selective," this
membrane should not allow large molecules or
ions through the pores (holes), but should allow
smaller components of the solution (such as the
solvent) to pass freely.

4.  A membrane is a thin, film-like structure that
separates two fluids. It acts as a selective
barrier, allowing some particles or chemicals to pass
through, but not others. In some cases, especially in
anatomy, membrane may refer to a thin film that is
primarily a separating structure rather than a selective
barrier.
 the membrane is designed to allow only water to pass
,while preventing the passage of solutes (such as salt
ions).

5. WATER TANK PLASTIC HOSE
PRESSURE PUMP MEMBRANE

7. time?
• depend on the making of water filter
container, small, big, tall or large.
Budget?
• The budget are cost nearly $250.
Workforce?
• To build this system, teamwork is needed but you can
build it on your own and it takes time consuming.

8. AIM AND OBJECTIVES
 TO MAKE PURE WATER TASTY
 USES SEAWATER TO MAKE WATER.
 TO SHOW HOW REVERSE OSMOSIS WORKS

9. WHY I CHOSE REVERSE OSMOSIS?
• FRIENDLY TO THE ENVIRONMENT
• DOES NOT PRODUCE HARMFUL CHEMICAL DURING
PROCESS.
• REMOVES THE UNPLEASANT SMELL AND POORLY
TASTE
• DOES NOT REQUIRED ELECTRICITY.
• SIMPLE DESIGN