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Latest News
AccuRATE V1.1.3.0
The latest version of 2nd Gen BTP
Assessment tools has been released.
DoP agree to a new Pilot to
commence early February 2007.
BASIX (DIY)
Review
ABSA instrumental in securing DoP
DIY Sustainability Tool - DoP Review...not independent but a starting point
Visit the ABSA Site for further
details.
DIY found to lower the standard of
Residential Building BTP in NSW - varies between 200% to 400% below Simulation
Method when compared with NatHERS and far more variation expected to AccuRATE.
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Sullage Waste Waters
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Traditional wisdom in waste discharge is that:-
- public health is preserved by discharge of wastes entirely to public
infrastructure for remote treatment
- where such infrastructure does not exist, individual 'septic tank' systems
are approved for discharge of all waste to underground disposal
- where public infrastructure does exist, connection is obligatory.
The
assumptions in this approach are that:-
- the discharge is only waste and has no resource value
- public health are the only issues applicable.
The development of other
approaches to waste treatment has brought to notice that:-
- concentration of waste treatment and disposal has detrimental impacts on
the environment
- some treatment processes add loads to the waste which add further
detrimental impacts to the environment, particularly chlorine
- collection of all wastes together results in large volumes of
waste contaminated to the lowest standard
- some wastes also contain resource value in their contents or for re-use
after treatment
The environmental objectives of waste treatment are to:-
- minimise the water volumes dedicated to these actions
- segregate wastes so that each can be treated effectively with least inputs
- to re-use minimally polluted waters
- to harvest components in the waste water having resource value
- to segregate from human contact only hazardous waste waters
From this
approach comes a waste treatment philosophy of:-
- keeping sullage, septic and trade wastes separate
- treating each appropriately
- re-using treated waters from sullage for non-potable uses eg.
reed bed
A number of approaches have been
incorporated into remote projects embodying a variety of systems to
achieve these goals:-
- Split septic - sullage
tanks with treatment for
discharge to underground disposal and grey water holding and garden use.
- Compost toilet and separate grey water
system.
- Septic discharge to sewer and grey
water treatment and use on-site.
The last being included in remote parts
of Asia where minimal if any sullage services are available and includes reuse
of treated waste water for on-site fertilisation.
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