Schlammentwässerung / sludge dewatering © BIOMONTAN GmbH

CHALLENGE SLUDGE DEWATERING IN WASTEWATER TREATMENT PLANTS

Increased dry residue. Lower costs.

Countless tons of sewage sludge are produced every year during biological wastewater treatment processes. As industrial sewage sludge has to be disposed of at a cost via composting (partly only permitted in food production) and, in future, increasingly in mono-incineration plants, the best possible sludge dewatering is a basic prerequisite for saving money.

The use of our pFMs with different charges, molecular weights and cross-links to improve the dewaterability of sewage sludge is one of the most important basic operations in sludge treatment for:

stable sludge dewatering
 increased dry residue of the dewatered sludge
 lower chargeback due to clear centrate

Our many years of experience in sludge dewatering enable us to select the right product for your sludge, supported by laboratory tests and dewatering curves.

Causes of inadequate sludge dewatering

The dewatering result depends heavily on the properties of the sludge to be treated.
Therefore, different operating modes of primary clarification, biological stages, precipitation and operating media, etc. can have a strong impact on digestion and sludge dewatering.
In addition, the selection of the most efficient polymer flocculant to improve dewatering is also crucial to save costs and resources.

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