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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 /

Lime slaking and dosing, Techmatic

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

Alkaline stabilisation features and blogs

Feature combined hydrothermal carbonization header
Feature

Combined hydrothermal carbonization with anaerobic digestion: recycling of the HTC products

Recycling the product streams from a hydrothermal carbonisation process to the anaerobic digester promotes biogas yield in terms of methane volume per unit feed COD, using HTC process conditions of 190 °C and a 1 h reaction time, this research suggests.

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