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Thickening processes are those which concentrate the sludge by removing part of the free water, i.e. the water not associated with the sludge particles or flocs. In doing so, the finished product retains the liquid, free-flowing characteristics of the feed sludge, so that it can still be conveyed by pumping. Thickening normally increases the dry solids (DS) content to between 4 and 6%.

Thickening related videos

Benenv's products and services for wastewater and sludge treatment − a showcase Source: Joseph Chahwan / YouTube

Benenv's products and services for wastewater and sludge treatment − a showcase

A showcase for Jiangsu Benenv Environmental Protection Co., Ltd's products and services for wastewater and sludge treatment.

Products include the elliptical Wave Separator and the Multi Disk Screw Press for sludge dewatering, the super sludge dryer, and the sludge carbonization furnace. Services include process design, and equipment supply and installation.


Thickening features and blogs

HTC/AD integration flowsheet

Co-processing of sewage digestate by hydrothermal carbonisation

Hydrothermal carbonisation (HTC) can be used to co-process anaerobic digestion (AD) digestate and lignocellulosic (or plant-based) feedstocks to improve the the hydrochar product quality. This AD waste co-processing route has been studied at bench scale. Read article

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