GREYWATER HARVESTING

GREY WATER HARVESTING

How to save money and re-use your household waste water.

Greywater is water from your bath, your shower, your basins and washing machines.
It is important to note it is not water from your toilet, your kitchen sink and dishwasher. This is called “black water”

Greywater harvesting can be done in one of 2 ways.

1.
Water goes through a small filer and is collected into one of our water tanks. This water needs to be used with 24 hours.

Water is pumped from a drum into an above ground Floline tank. A valve then injects Ozone. By doing this water can be stored for a longer duration.

The ozone process works in three simple steps.

Step one:
ozone injection/oxidation.

Ozone is tri-atomic oxygen (O3), which has very high oxidizing power. It is a gas produced from air and high voltage electricity. The injection of the ozone into the water produces tiny ozone bubbles, which saturate every drop of water. At this point, oxidation of iron, sulfur and manganese is immediate.

The ozone unit (ozonator) is the device that produces the ozone. Its design should be simple, waterproof, plastic/non-conductive housing, short-circuit protected by reset-table breaker, field serviceable and a stainless steel ozone generator construction.

Ozone must be injected into the water after it is produced. There are two methods that are most commonly used: 1) Ozone Pump – a positive displacement injector that pumps the ozone gas into the water similar to a chemical feed pump for chlorine; and 2) Venturi – device that restricts flow and pressure in order to produce a vacuum. This vacuum device sucks the ozone gas into the water. Improper sizing will result in insufficient ozone suction, which will cause insufficient oxidation.

Step two:
aeration.

The elimination (off gassing or venting) of the ozone and other gases/odors, such as sulfur, occurs by an ozone stripping action. As water flows down the Off Gas Tank, ozonated water rises and strips any gassing the incoming water.

Step three:
filtration.

The final step for removing the oxidized material is filtration. The media used should have: low water waste (backwash), high service flow, high removal capacity and requires no chemicals during regeneration. Mechanical filtration is all that is necessary if proper oxidation has been achieved.