Chemical and Biomedical Engineering - Theses

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Subject: fouling × Subject: biofouling ×

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    Quantification of wastewater dewaterability for understanding sludge dewatering and fouling during membrane bioreactor operation
    Skinner, Samuel ( 2018)
    This thesis investigated the dewatering properties of wastewater treatment sludges, and biofouling layers in membrane bioreactors. An experimental and data analysis methodology was developed that unified existing procedures for lab-scale filtration, centrifugation and gravity settling tests. This unified dewaterability characterisation methodology was used to quantitatively compare fifteen wastewater sludge samples. The comparison highlighted a correlation between lower volatile suspended solids and improved filterability. Further modelling of the extreme compressibility of biofouling layers has provided insights into optimisation of water recycling.