Uki Wastewater Treatment Plant  

The Uki Wastewater Treatment Plant was designed to service a population of 800 people.  It was completed in 2003 and the cost of the plant and reticulation was $3.5 million.  50% of this was funded by the State Government and 50% was funded from Council and the local contribution of $3000 per residence.

The treatment plant has been designed to treat 190 kL/day.

Sewage is delivered to the plant by a combined conventional gravity sewage reticulation system and low-pressure sewage pump system installed around the village area.

Treatment

·       The treatment process is a continuous activated sludge process.

·       It contains inlet works and 2 inground compartmentalised tanks.  The tanks contain a balance compartment, 2 anoxic compartments 4 aeration compartments, a clarification compartment and a sludge compartment

·       Alum is used to assist phosphorous removal.

·       Treated effluent is stored in an irrigation dam

·       Effluent is chlorinated before reuse.

·       100% of dry weather flows will be reused on site to irrigate Koala food trees grown for the Currumbin Sanctuary.

The EPA licence limits (12392) are listed on the following table.