Wastewater Land Application with Center Pivot Systems

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Growers are constantly striving to be more efficient and more environmentally conscious in all aspects of their operations. As a result, there is increased land application of wastewater.

Lindsay Corporation leads the way in the development of cutting edge center pivot technology for wastewater land applications. The four primary areas of use are:

  • Dairy
  • Municipal
  • Industrial
  • Food processing

While stringent state regulations govern these systems, the key items to consider are:

  • The volume of waste water to be applied to a specific area (min. acreage)
  • Wind drift into areas where risk of contamination might occur
  • Crop to be irrigated (animal feed)
  • Overspray into streams, waterways and wetlands
  • Quality of the water (lab testing)
  • Mixing with fresh water (backflow, well protection and system flushing)
  • Corrosion of system components due to poor water quality

To comply with state regulations and accommodate local site conditions, a high tech system might consist of the following components:

  • Sprinklers that have low clogging and low wind drift characteristics
  • Poly lined span pipe
  • Variable rate control system
  • Fresh water mixing to allow for flushing
  • Remote operation such as with FieldNet
  • Sensors such as wind and soil moisture
  • VFD pump motor control
  • Integrated packaged pump control systems
  • Filtration systems
  • Separator and sediment ponds

When properly managed, land application of wastewater is a safe and natural way to recycle water using the soil as a natural and effective filter while also returning water to aquifers and ground water supplies.