Page 7 - National Poultry Newspaper

New money-saving KDS sludge dewatering system solves environmental and disposal issues for poultry processors
A COMPACT and cost- efficient alternative to conventional dewater- ing technologies is be- ing introduced to Aus- tralia and New Zealand to eliminate costs and OH&S hazards associ- ated with damper and heavier output from poultry processing and major food preparation operations.
The KDS Multidisc Separator system from CST Wastewater Solutions, which requires no washwa- ter while capturing 90-99 percent of solids – is en- gineered to overcome the limitations of technologies such as screw presses, belt presses and centrifuges currently used.
Applications include in small-to-medium poultry, fish, meat and dairy plants as well as large-scale food and beverage kitchens and catering facilities that face the challenge not only of handling heavy, sticky wet waste, but also the volume, cost and OH&S hazards of transporting such unhygienic material to disposal facilities.
According to CST Wastewater Solutions managing director Mr Michael Bambridge, the largest energy-saving KDS unit can handle about 100kg of dry sol- ids an hour at 98 percent solids capture to produce this more hygienic and compact output that is easier and cheaper to
handle and transport. Used for dewatering of dissolved air flotation sludge – a very common application throughout wastewater operations – the KDS achieves sol- ids capture of 97 percent thickened sludge at a dry-
ness of 17 percent. Waste-activated sludge
dryness levels are typical- ly 15-18 percent dryness.
The high-quality, Japa- nese-manufactured tech- nology:
• Uses minimal energy, consuming as little as 0.06kW/h of electricity;
• Operates at low (63dBA) non-intrusive noise and vibration levels;
• Requires minimal daily maintenance, sav- ing cost and enhancing OH&S performance;
• Occupies typically half the space or less of conventional dewatering plants; and
• Is available as a fixed compact unit or skid- mounted type that can be carried on trucks and trailers.
This lighter, dryer waste it produces reduces the need for manual labour in clean- ing and transport opera- tions and curtails the need for staff to handle sloppy, heavy waste potentially hazardous to health.
“With the KDS’ mini- mal water, power and space demands, it is ideal- ly suited to both smaller- to-medium business and also to those operating in
remote or environmen- tally sensitive situations,” Mr Bambridge said.
How it works
The clog-free automatic liquid-to-solid waste sep- arator dewaters solids and conditioned sludge on a self-cleaning wedge wire belt.
This static belt is cleaned by a unique set of rotating oval-shape plates.
After the drainage and thickening zone, the thickened sludge passes a dewatering zone that con- sists of an adjustable plate, actuated manually or by pneumatic cylinder to fur- ther squeeze the solids.
The KDS’ unique self- cleaning dewatering and conveying system features an oval plate separation and transfer structure that prevents clogging and permits automatic continuous operation that handles oily and fibrous material with ease.
“This simple-to-main- tain separator offers a high throughput within a small body, with the smallest model being just under 350mm wide and weighing 50kg,” Mr Bam- bridge said.
“The compact rota- tional oval plate structure achieves high transporta- tion and separation effi- ciencies, while the sim- plicity of the machine’s overall structure offers low maintenance, achiev- ing cost and OH&S bene- fits through less handling
required to clear hazard- ous materials.
“The KDS separator uses a fraction of the power of a centrifuge and requires no water usage during operation, unlike a belt press or screw press.
“For a relatively low in- vestment cost, it also of- fers a high-performance alternative to sludge dry- ing beds and geobags, for example.”
Applications for which the separator is designed include:
• Food processing waste, including poultry and snackfoods, kitchen and restaurant waste, raw wastewater (primary screening) and sludge;
• Removing solids from waste streams;
• Dewatering sludges/ solids;
• Screening and dewa- tering chicken processing wastes;
•Removing and dewa- tering solids from waste- waters and dewatering chemical sludges from DAF floats;
• Abattoir, feedlots, and dairy farm wastewater and sludge. Cattle manure cake dryness of 25-35 per- cent is typically achieved;
• Pig farm raw manure and sludge, with cake dry- ness of 20-30 percent;
• Barrel polishing water, water-based paint waste- water, grease trap waste, dyeing wastewater, waste oil and plastic recycling;
• Seafood processing; and
• Sewage treatment, in- cluding raw wastewater (primary screening) and sludge to landfill.
For further information, please contact Mr Bam- bridge on 02 9417 3611, email info@cstwastewa ter.com or visit www.cst wastewater.com
CST Wastewater Solutions’ KDS separator, proven in thousands of applications worldwide.
The technology involved in KDS separators, which have been proven in thousands of applications worldwide.
Poultry operations produce large quantities of watery sludge from their wastewater processing operations. New KDS technology reduces this to drier, less-hazardous and more easily transported output.
POULTRY RENDERING

transportation from farm and processing services for spent birds from New South Wales, Southern Queensland and Victoria.
CONTACT
Jason Graham 0428 149 704
jason.graham@manildra.com.au
manildra.com.au @manildra
www.poultrynews.com.au
National Poultry Newspaper, July 2018 – Page 7