Work

Fate and function of flocculant polymers in waste activated sludge pre-thickening: Effects on digestion, rheology and dewaterability

Year: 2025

Type: article

Abstract: ), they retained a variable 10-36 % residual effect after digestion, in terms of reduced dosing requirements for final dewatering. Overdosing, especially with biopolymers, inhibited VS destruction, likely due to excessive biomass aggregation. Strategic polymer dosing before digestion can enhance biogas production and downstream dewatering whilst minimising polymer use. This supports more cost-effective and sustainable sludge treatment.

Source: The Science of The Total Environment

DOI: 10.1016/j.scitotenv.2025.180523

Authors: Seyedali Tabatabaei, Stephan Tait, Catherine A. Rees, Andrew S. Ball, Damien J. Batstone, Nicky Eshtiaghi

Institutions: RMIT University, The University of Queensland, Melbourne Water

Language: English

Topic: Coagulation and Flocculation Studies

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: hybrid

Estimated APC paid: $4,250