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Screw presses

A screw press provides sludge dewatering by passing the sludge along the inside of a permeable cylinder. It uses a slowly-rotating (~5 RPM) Archimedean screw within a cylindrical screen (otherwise termed drum filter/screen or basket). It is normally inclined by ~20° to the horizontal to assist with the draining of water into the sump, and the screen aperture rating is generally below 0.5 mm.

Screw presses related videos

Huber Q-PRESS® screw press Source: HUBER SE /

Huber Q-PRESS® screw press

A video to demonstrate the principles of the Huber Q-PRESS® screw press.

Screw presses 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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