Reduced Screenings Disposal Costs for Acacia Bay STP
The Acacia Bay STP owned by Taupo District Council treats up to 365 kL/d of sewage via a sequential batch reactor (SBR) process. Hydroflux were contracted to install a new screenings wash press system in order reduce the amount of screenings taken offsite for transport.
A HUBER WAP Wash Press was selected for the process and accepts screenings from current screening system onsite. The HUBER WAP is a horizontal screw wash press with discharge pressure pipe that is design to remove faecal material from captured screening and compact the screenings.
Technology Highlights
- Washes and compacts screenings from step, drum, band and bar screens
- Reduces screening volumes by 65% – lower transport and disposal costs
- Washing component results in dry screenings free of odour and vermin
- Organic rich washwater is return to the liquid stream and is a source of carbon
- Simple to operate and maintained
General
- Five sizes are available, from 0.3 through to 10 m3/h of wet screenings
- Can be configured for launder feeds (ie band and drum screens)
- Custom fabricated feed and discharge tie in points to suit retrofits
- All stainless-steel fabrication
- Well proven in New Zealand
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