Biocal quicklime for sewage treatment

Sewage and biosolids are frequently recycled to farm land following treatment with lime; an established simple technology for low capital costs. Tarmac’s Biocal range of quicklime products is designed for treatment of dewatered or digested biosolid sludges. Liquid sludges can be treated with Kalic or Kalic HS milks of lime.


  1. Lower costs

    Readily available and easy to use, Biocal offers a low-cost solution to lime pasteurisation.  

  2. Total peace of mind

    Treating biosolids and sewage with lime is a highly recognised methodology that has proven itself, time and again.

  3. Complete safety

    Lime pasteurisation is safe, practical and easy to carry out, essential when dealing with potentially hazardous sludge.  

  4. On site demonstrations

    A temporary mobile installation available to demonstrate the effectiveness of the Biocal process.  

  5. Quality assured

    The Biocal range has been certified to ISO 14001.  

  6. Industry-leading innovation

    The result of Tarmac's on-going commitment to research and development, Biocal is among the most innovative sewage and sludge treatment products in the industry.  

  7. Ultimate support

    At Tarmac technical excellance comes as standard.  To ensure the best possible results, expert support and advice is never more than a phone call away.  

  8. Approved

    Provides agricultural benefit and regulatory approval.


  • Sewage sludge treatment
  • Biosolids treatment
  • Nutrient for agricultural land

Technical Information

All our customers can rely on the technical support of Buxton Lime, to provide expert advice on the best products for their needs, and efficient reliable use and handling of our products.

To see the gas prices used to calculate a monthly lime energy surcharge please click here.

  • Achillies Building Confidence

Email Us

How can we assist?

Thank you for contacting us

You are very important to us. We will contact you as soon as we review your message.