Re-use Water from Effluent Ponds

Description

Pump water from second or third effluent pond and store for use in high flow rate yard cleaning systems. Commonly used for flood wash and hydrant wash systems with few problems.

The cost of setting up these systems very much depends on where the effluent ponds are situated – ponds, pipes, tank and effluent pump $20,000 - $25,000.

Using raw (untreated) effluent can make yards very slippery and increases odour. For a single pond system also need a pontoon and a pond stirrer (if crusting is a issue). 

Tips on Getting the Best Result

Pump water into a storage tank overnight and use this to feed the wash pump.

If there is no crusting of the pond avoid using the pond stirrer when pumping water for yard washing. Use an effluent pump for this purpose not a water pump.

Avoid using the recycled water close to or inside the dairy and shandy ‘fresh’ water in with reused water to control salt levels. 

Pros and Cons

Water availability.

Will get nutrient and salinity build up in re-used water – particularly in hotter climates. Smell can be an issue and concrete can get slippery. 

Issues in Making it Happen

Labour

Although few problems reported there is the potential for OH&S risks if effluent water is used in systems that create aerosols (ie hydrant wash).

Animal Health

Nil as long as concrete is not slippery.

Labour

Salinity and nutrient build up in water causes issues for disposal.  Odour problems occur too.