Expanded Clay Aggregate, ECA, Leca, Agriculture Use, manufac

Agriculture Use

Agricultural wastewaters and their contaminants include the following

  • Olive Mill Wastewater (Total solids and organic content)
  • Swine Wastewater (contaminated with OxyTetracycline, organic content)
  • Water contaminated with Herbicides
  • (2-MethylChloroPhenoxyAcetic Acid)




Usefulness of Expanded Clay Aggregate (ECA) in the treatment of Agricultural Wastewater

  • Wastewaters can be treated using ECA as the bed substrate and planted with Phragmites australi. 
  • Swine wastewater and Olive mill wastewater that contains Oxytetracycline, total suspended solids and high organic content, can be removed by this process (planted Expanded Clay Aggregate (ECA) bed) with efficiency higher than 80%.
  • Water contaminated with Herbicide (2-MethylChloroPhenoxyAcetic Acid), study has showed that Expanded Clay Aggregate (ECA) has high absorption ability for the herbicide (2-MethylChloroPhenoxyAcetic Acid), so the removal efficiency is about 56-97%.


Physical Properties:

  • It’s dependable and consistent
  • Expanded Clay Aggregate (ECA)  is chemically and physically inert
  • Expanded Clay Aggregate (ECA)  has great hydraulic conductivity which allows fast and free drainage/binding of pollutants such as phosphorus.
  • It  has an increased surface area
  • Due to its ceramic properties, it reduces material degradation
  • Reduced handling costs


Perfomance Properties:

  • Expanded Clay Aggregate (ECA) has a lower maintenance cost and it’s economical
  • Expanded Clay Aggregate (ECA)  is readily available and easy to use in treatment of waste water, sewage and industrial effluents.
  • It has a predictable performance and longevity
  • Expanded Clay Aggregate (ECA)  employs ion exchange for an effective treatment process
  • Expanded Clay Aggregate (ECA)  removes solid material that can bring about clogging
  • Effective reduction or removal of arsenic, phosphorus, metals, oil, grease and poisonous hydrocarbons.
  • Expanded Clay Aggregate (ECA) combines effluent filtration and nutrients removal for cleaner discharge.
  • It has a greater surface area which makes filtration of pollutants effective.