Proceedings

Sludge management and optimisation through real time control of both thickening and dewatering processes

Moroney, J., Murren, C. and Ainsworth, S., Hach Lange, UK PRESENTATION ONLY

(free)

Why Optimise? Technical aspects • Sludge thickening vs. sludge dewatering • Operational principles ST • Reference sludge thickening + results

Why Optimise? Operator comfort  Limited operator time for analysis / poly adjustments  Environment – atmosphphere Operational problems / challenges  Variable process feed solids  Changes in polymer concentration / activity  Different sludge characteristics (e.g. sludge imports from different sites / septicity)

Thickening • properties of thickened sludge • prevent thickened sludge pump clogging • polymer consumption • SRT Digester • Gas yield Gas yield and operational aspects predominant

Dewatering create cost savings in • polymer consumption • sludge disposal Polymer savings aspects predominant

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