Our System

The award-winning Newtreat Super System treats greywater from kitchens, laundries and bathrooms. For further specific plumbing and electrical requirements, please refer to our Frequently Asked Questions (FAQ) page.

Electro-Chemical Treatment Process

Greywater from kitchens, bathrooms and the laundry is initially diverted to holding pipes located under the vessel, as is the common practice with blackwater storage. Greywater is then pumped from the holding tank(s) to the on-board treatment chamber.

In the first Reaction Chamber, we use a highly efficient Electrolytic Process to treat the grey water by a controlled electro-chemical reaction. The elecro-chemical reaction is created by using extra-low voltage DC. The key parts of the process include releasing harmless iron and aluminium ions into the waste water. These iron ions combine with chemical impurities precipitating them from the solution in a very insoluble form. Heavy metals, fats and greases, volatile organic compounds and other pollutants are removed. The aluminium ions then clarify the treated water.

The solution is then  pumped into the second Settling Chamber.  After settling, the clear water is “polished” by a cartridge filter before passing through an ultra violet light which kills any remaining bacteria. Treated water is then dispersed into the river.

After every five treatment processes, inert sludge emanating from the rigorous treatment process is sent to the houseboats existing Black Tank. This connection is required to be plumbed when installation occurs.

The Newtreat Electronic Control Unit

A smart control system completely automates the entire process.

Super System Technical Specifications

Stainless Steel treatment chamber:

• Length: 2045mm
• Height: 670mm
• Width: 220mm

Greywater Holding Pipe

Our greywater holding tank system is based on established blackwater holding tank methods commonly used on houseboats.

The Australian Standard [Treated Greywater (c)] stipulates: “Greywater treatment systems incorporating a pre-treatment storage facility shall have a combined storage and treatment capacity capable of handling 75% of the expected daily capacity of the vessel during a 1 h period.”

The Australian Standard [Capacity A2.2] also stipulates: “The volume of greywater capable of being treated by the system, based on a minimum production rate of 150L per person per day. For example, a 12 berth vessel will produce 1800 L/day (i.e. 12 x 150 L = 1800 L/day).”

Again, it is important to note the above requirements have been stipulated in the Australian Standard. Newtreat has adapted the requirements in order to comply.

We recommend the use of standard DWV/300mm x 6 metre/PVC pipes/s – similar to that regularly used to store blackwater under many houseboats. One length of 300mm x 6m “holding pipe” could be expected to hold around 424 litres of untreated greywater. With a weight of around 424 kilograms when, and if ever, full.

Power Requirement

To simplify installation, the system has been designed to plug into a single 240 volt outlet available on most vessels. It is preferable that the inverter providing the 240 volts from the vessels battery system be pure sine wave with at least 800 watts capacity. However, alternative mode inverters may be used – please contact us to discuss your individual power solution if you do not have pure sine wave.

The treatment system typically draws about 200 watts (roughly equal to 2 light bulbs) which occasionally rises to 400 watts during brief pumping operations.

Maintenance

Regular (turnaround/end of voyage) “flush/pump out” and inspection of electrodes.

In the first Reaction Chamber, we use a highly efficient  Electrolytic Process to treat the grey water by a controlled electro-chemical reaction. The electro-chemical reaction  is created by using extra-low voltage DC. The key parts of the process include releasing harmless iron and aluminium ions into the waste water.  These iron  ions combine with chemical impurities precipitating them from the solution in a very insoluble form. Heavy metals, fats and greases, volatile organic compounds and other pollutants are removed.  The aluminium ions then clarify the treated water.