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Alkaline stabilisation

Alkaline stabilisation is a chemical method designed to reduce sludge odour and putrescence (i.e. decay), and the level of pathogenic organisms. This is achieved by raising the pH of the sludge using lime. The process may be supplemented by dosing with waste solid materials to reduce the amount of lime used. Although adding material to the sludge increases its volume, the process is simple, effective and low in capital cost.

Alkaline stabilisation related videos

Lime slaking and dosing, Techmatic Source: Techmatic Engineering PTY LTD / YouTube

Lime slaking and dosing, Techmatic

A video to demonstrate the principles of the Techmatic lime slaking and dosing process.

Alkaline stabilisation features and blogs

PFAS molecule
Blog

How do you solve a problem like PFAS?

PFAS (per- and polyfluoroalkyl substances) are generated from the breakdown of fluorinated polymers. The activation barrier for their breakdown is huge and the only fully commercialised processes possibly capable of destroying PFAS are thermochemical ones.

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