Water quality results reinforce need for action
Hundreds of water samples taken from Ōtūwharekai Ashburton Lakes and streams over the past year confirm that water quality remains a concern, according to Environment Canterbury.
Dissolved iron in drinking water and reduced palatability can be a major problem, particularly for dairy farmers, who strive to get dairy cows to drink upwards of 70 litres of water per day for good production.
The Iron Out System from Longveld, based around a floating polymer media is capable of dealing with iron levels up to 50ppm, and producing from 12,000 to 200,000 litres of clean water per day.
In practice contaminated water is first passed through an aerator where hydrogen sulphide, the “bad egg” smell, and other gases are removed.
The aeration process causes the iron content to precipitate out as an insoluble compound, which is carried into the main separation area, and is trapped by the floating polymer filtering media. After passing through the media the “clean water” flows by gravity to a storage area.
Over time the media will become clogged and restrict water flow, which results in a drop in water level in the main tank, and an increase in the level of the main feed pipe, which in turn creates a vacuum, which instigates a “back-wash” cycle.
At this point flow is reversed and clean water flows back through the media and takes any collected impurities with it to a back wash collector, and away to waste. As the media is refreshed water flow increases, and the level rises and the cleaning cycle recommences.
As well as being fully automatic and very low maintenance, the process is chemically stable, impervious to bacteria, and the expected lifespan of the cleansing media is about 15 years.
South Waikato farm manager Ben Purua’s amazing transformation from gang life to milking cows was rewarded with the Ahuwhenua Young Maori Farmer award last night.
Bankers have been making record profits in the last few years, but those aren’t the only records they’ve been breaking, says Federated Farmers vice president Richard McIntyre.
The 2023-24 season has been a roller coaster ride for Waikato dairy farmers, according to Federated Farmers dairy section chair, Mathew Zonderop.
Ministry for Primary Industries (MPI) director general Ray Smith says job cuts announced this morning will not impact the way the Ministry is organised or merge business units.
Scales Corporation is acquiring a number of orchard assets from Bostock Group.
Family and solidarity shone through at the 75 years of Ferdon sale in Otorohanga last month.