Page 17 - National Poultry Newspaper

Solutions for poultry wastewater
CHOOSING the best pump for pumping wastewater from poul- try farms or process- ing plants means tak- ing the time and trou- ble to analyse perfor- mance and the types of pumps required.
For a self-priming pump, the body will in- clude the capacity for it to hold enough water to prime the pump.
The smaller pumps of 2-4” are regarded as semi trash, though they have big open non- clog style impellers and feature silicon carbide seals and a stainless- steel wear plate.
The choices are sub- mersibles, long-column sump pumps and more recently, the introduc- tion of Aussie’s GMP big, robust self-priming centrifugal pumps.
Aussie Pumps’ chief engineer John Hales said, “To prime, there are three simple steps.”
For extreme applica- tions, 316 stainless-steel cast impellers can be provided as an option.
Aussie Pumps be- lieves that the big self- priming pump concept works better, not only because of its ease of maintenance but also for its ability to with- stand the issues that pumps in applications such as these experi- ence.
“Step one, fill the pump bowl with water through the priming plug mounted in the top of the pump body.
Best of all, semi-trash and trash pumps from the Aussie GMP prod- uct range all include a front opening port that enables the pump to be cleared out in the event of blockages.
Corrosion is one con- sistent problem, par- ticularly for cast iron submersible pumps, where a two-year life cycle is often normal.
“Step three is to start the motor or engine, de- pending on the drive system involved.
“Bones, feathers and particles of meat or flesh will pass straight through the pump without effort.”
The pumps also need to be robust enough to handle the job and have that indispensable ‘self- priming’ feature.
The water in the pump body is expelled to the discharge.
Aussie’s semi-trash pump range now in- cludes a 3” pump that not only has the ca- pacity to move over 1000L per minute but can also deliver heads up to 70m.
Self-priming means that the pump is mount- ed outside the pit or tank and draws its wa- ter through a suction line connected into the front of the pump.
That in turn creates a vacuum inside the pump that allows the check valve mounted in the pump suction port to open, allowing water to be sucked into the pump body through the suction hose or pipe assembly.
“That’s a break- through product for us,” Mr Hales said.
In a normal instal- lation, the discharge is through an elbow mounted on the top of the pump, but the key feature is the design of the pump body itself.
“It’s easy and pro- vides real advantages of convenience,” Mr Hales said.
“It means that the liq- uid can be pumped fur- ther, or higher, depend- ing on the application.”
The priming process is simple and virtually foolproof.
“Step two, make sure the suction hose or fittings going into the pump body are completely airtight, so there’s no danger of air leaks in the suction line.
“Imagine, being able to clean out the pump without having to dis- connect pipework, as youdointhecaseofan end suction pump,” Mr Hales said.
“What happens next is basic physics.”
Aussie’s 2” through to 6” pumps are all de- signed around a trash or semi-trash configu- ration concept.
Experience has shown Aussie Pump engineers that using submersibles in applications such as this, and long-column sump pumps, can cre- ate real difficulty.
Aussie GMP self-priming pumps are quick to set up and simple to maintain.
Further information, including a new cata- logue on Aussie GMP pumps, is readily avail- able from Australian Pump Industries or dis- tributors around Aus- tralia.
“We hear about the inconvenience of lift- ing pumps out of the pit for service, where with a self-priming pump mounted outside the tank or pond, service can be carried out with a minimum of mess and inconvenience,” Mr Hales said.
“It’s the new way and every day we find more customers mov- ing to our self-priming centrifugal pumps for these wastewater appli- cations.”
Poultry farmer and university lecturer Ruud Zanders said, “It makes no sense for us to be competing with animals for food.”
Dutch farm producing carbon-neutral eggs
A MASSIVE 70 percent of the carbon footprint in eggs comes from grow- ing corn to feed chickens.
organic and free range eggs, which see chickens fed with human-grade corn.
– it prevents the ‘competi- tion’ between humans and animals for the same food sources, and has a positive effect on the farm’s carbon footprint.
carbon neutral.
Mr Zanders said that if
In recent years, free range and organic eggs have become increasingly popular among people ea- ger to support more ethi- cal farming methods.
Poultry farmer and university lecturer Ruud Zanders said, “It makes no sense for us to be com- peting with animals for food.”
However, the choice of chicken feed isn’t the only effort the farm has made to limit its carbon emis- sions.
the status changes in fu- ture, he will install more solar panels to reduce CO2 emissions even fur- ther.
Dutch stores are stock- ing a food produced with the environment and ani- mal welfare in mind – car- bon-neutral eggs.
“And 70 percent of the carbon footprint in eggs is accounted for by the feed for the chickens,” Mr Zanders said.
Over 1000 solar panels were installed and provide more than enough energy for the farm itself, with any overage being sold back to the grid.
Given carbon emissions are one of the biggest problems of our time, this is positive news.
Meaning that no emis- sions are associated with their production.
The farm collects waste items such as broken bis- cuits and rice cakes from local bakeries, as well as edible items set to be thrown away, and turns it into feed for the chickens.
Recently, a report com- missioned by the United Nations stated current lev- els haven’t been seen in 3 million years.
Kipster eggs are the product of a new farm that diverges from techniques commonly used to yield
This has a dual effect
With the way the chick- ens are fed and the solar panels, a study by the Wageningen University found that the farm’s eggs could be considered
With those emissions generating rapid climate change and ocean acidi- fication, there are press- ing concerns a massive ecological disaster could be triggered in the next century.
Photo: Erol Ahmed
Kipster eggs have cer- tainly contributed to a greater undertaking.
Experts have suggested the only way humanity will survive is to become carbon-neutral or even carbon-negative.
Fortunately, things are beginning to change.
China is shutting down factories, gas and diesel- powered cars are seem- ingly on their way out and there are ongoing efforts to establish ways of con- verting CO2 into a usable fuel source.
It’s going to take a uni- lateral shift across vari- ous different industries to ensure we address carbon emissions.
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National Poultry Newspaper, April 2021 – Page 17