Membrane bioreactor

The efficient design of a membrane bioreactor for cells culture needs the complete characterization — both experimentally and theoretically — of the transport phenomena for metabolites, catabolites, cell regulatory and immune-related soluble factors. In this work, experiments and theoretical calcula

The study aimed to assess the effectiveness of meat industry wastewater treatment applying two hybrid systems of activated sludge and ultrafiltration in: (1) an aerobic bioreactor in combination with ultrafiltration and (2) a bioreactor equipped with separate denitrification and nitrification tanks

Landfill leachate from a composting field of a Finnish municipal waste landfill was treated with sequencing batch reactor (SBR) and a submerged membrane bioreactor (MBR) fed batchwise. The average quality of the leachate was 475 mg/l suspended solids, 1240 mg/l BOD7, 10 mg/l phosphorus, and 210 mg/l

Extracellular polymeric substances (EPS) are viewed as major fouling components during filtration of biological feeds in industry. However, very few studies investigated the fouling mechanisms of polysaccharides, one major group of macromolecules in EPS. In this work, dead end unstirred filtration o

Membrane bioreactors (MBR) combine biological processes with membrane filtration. The main obstacle to efficient operation remains the deterioration of membrane permeability with time. One possible approach to the fouling issue is sub-critical flux operation. Other options are air sparging and backf

A novel stainless steel membrane module with a 0.2 µm nominal pore diameter was applied in an aerated submerged membrane bioreactor to treat synthetic domestic sewage. The pore size of metal membrane was more homogeneous and of tighter distribution than that of organic membrane. The steady membrane

The filtration performances of submerged membrane bioreactors (SMBR) with and without the addition of powdered activated carbon (PAC) were investigated respectively under the same feed and operation conditions. A series of experiments were conducted to analyze near-critical flux, effect of air-scour

For a specific textile finishing company strategies for water recycling and recovery of valuable chemicals have been developed. A comprehensive study of the company’s resource consumption and emission profile was performed. On this basis selected end of the pipe and integrated recycling options were

The reuse of effluents for irrigation and indirect potable water uses is rapidly developing as an alternative to seawater desalination. This paper explores two membrane-based options available to treat sewage for water reuse, tertiary filtration (TF) of the effluent from a conventional activated slu