In the Kingdom of Saudi Arabia, Landia’s AirJet is playing a key role in the success of the aeration and wastewater system for a major poultry processor.
Specified by MSA Environmental Ltd., who are leading effluent treatment plant designers for food and drink production sites in the United Kingdom and the Middle East, a total of thirty-nine dry-mounted Landia AirJets handle aeration, anoxic tanks, and sewage at the remote site.
Serving a new effluent treatment plant utilising MBR technology that treats wastewater from the poultry and rendering plants (roughly 1.5 million gallons per day), the AirJets keep wastewater aerated and mixed in two 211,000-gallon balance tanks prior to Dissolved Air Flotation (DAF). In the two 34,000 gallon DAF sludge tanks, AirJets keep the tanks’ contents fresh and homogenised prior to further treatment by a tricanter centrifuge.
AirJets are also utilized for two 39,000-gallon biological sludge tanks, aerating and mixing to provide homogenous composition to sludge dewatering equipment. Furthermore, AirJets are also installed in anoxic tanks for mixing purposes, as well as in the sewage treatment plant.
Jerad O’Pray, director at MSA Environmental, adds, “We have specified AirJet on many of our plants and always found them to deliver very good performance, as well being extremely robust and reliable. This includes, for example, many years of highly effective operation at the Almarai CPP (dairy/juice) site in Al Kharj, also in Saudi Arabia.”
He continues, “Despite ambient temperatures that are consistently above 140 degrees Fahrenheit (40 degrees Celsius), the AirJets help reduce odour issues by keeping the tanks fresh during the near 24/7 operation.”
Comprising a Landia chopper pump and an ejector system, AirJet is designed with an external knife system, which ensures that the aerator does not get clogged up by any solids in the wastewater. To suit the size of the two large balance tanks (211,000 gallons each) at the poultry processor, 18.5 kW AirJets were specified by MSA as part of their independent consultancy advice, whilst 7.5kW motors are used elsewhere throughout – with each AirJet made from a cast iron casing, plus stainless steel impellers and shaft. ◆
Soren Rasmussen is the director of Landia, Inc. For more information about Landia’s range of applications, call 919.466.0603, email , or visit www.landiainc.com.
MODERN PUMPING TODAY, March 2017
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