Sludges and Filter Cake

An unavoidable by-product of most industrial processes, hazardous sludges and cakes constitute a large proportion of waste generation within industrial and manufacturing operations.

Due to the nature of how these materials are derived, many Hazardous sludges and cakes hold valuable commodities such as oil, solvent and precious metals, which can be recovered as a secondary material and reused.

The waste hierarchy highlights the importance of reducing and reusing materials where possible. At Totus we implement this model when partnering with customers and discussing waste solutions.  As part of our industrial services offering, we have a dedicated mobile technical service, specialising in the extraction and recovery of valuable components within industrial sludges. Technologies, amongst others, include onsite filtration, chemical separation and/or centrifuge processing. These extraction methods are particularly beneficial to those looking to minimise waste generation and reduce disposal costs.

Totus offers a fully transparent service, from the initial waste assessment and analytical testing right through to collection and recovery of the material. We collaborate with producers to enhance their environmental performance, providing an essential link to fuel alternative solutions, helping remove the need for landfill while minimising reliance on fossil fuels previously used to power industrial processes.  

Sludges and filter cakes maybe subjected to co-processing operations to produce an alternative fuel for the cement industry. Waste suitable for this operation would include:

  • Oil based filter cakes
  • Oil tank bottom sediment & slop
  • Paint & Varnish based sludges
  • Adhesive & Polymer based sludges
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For streams not suitable for co-processing, we source appropriate waste to energy facilities, moving the material up the waste hierarchy and avoiding landfill. Examples of this waste may include:

  • Packaged paints, varnishes & adhesives
  • Cured or solidified resins
  • Cured Isocyanates

Filter cakes and sludges with a high metallic content that are unsuitable for co-processing or waste to energy can often be recovered as a secondary raw material offering a close loop solution. Totus continues to explore and collaborate with state-of-the-art blending platforms, energy recovery and other specialised treatment facilities throughout Europe.

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