POTABLE WASTE

The use of centrifugal force is a vital ingredient of our modern civilisation. Water pumping, jet engines intakes, turbo-chargers, sewerage movement, all rely on this force to operate.

Early high school, an opposing pair of test tubes with varying density of coloured fluid were spun on a laboratory centrifuge, hand wound. We were told that the test tubes were put up to many times gravity, the result was a complete separation of the coloured fluids.

The heaviest were at the bottom of the test tubes, with graduation up to the top, the lightest. All very visible.

At home I learnt of the hand wound separator used by my Grand-father to separate the milk solids from the Jersey cow milk. The solids were first cream then butter, a self sufficient house stead.

The possibility of a large disk at high speed to separate the salt from sea water, I thought a possibility. On the television How Its Made, had a milk separator spinning at seven thousand rpm I think as a continuous process. Milk in, butter out with whey the last fluid, a stock feed.

Europeans are using alternating current on sea water to break the bond of the salt from the sea water. The resulting brine can be vacuum dried to produce salt in a cold environment. The salt pans of the hotter climates are a cheaper process, but freight costs make the first system viable and extremely profitable.

An idealistic and naive later teenager I made a provisional patent of a very large disk with an upper and power compartment. Using centrifugal force the separation of not just salt, but the heavier metals all dissolved in the water.

Desalination by pressure uses a lot of electricity, maybe the spinning disk is comparable with the bonus of the heavier metals. Also the separation of the various metals from lithium up to copper and gold. Various radius outlets might allow a fine gradient of metals.

The water molecule is the ultimate extraction fluid, dissolving everything it contacts. A top feed into the centre of the disk with multiple outlets all in the direction of motion, with the outlets underneath at spacing to separate the various elements to be channeled away, with the potable water nearest the centre drive shaft.

The relative densities range from under unity to seven to ten to eighteen to twenty.