This study focused on phase separation of activated sludge mixed liquor by flat-sheet membranes of polytetrafluoroethylene (PTFE). A 20 liter working volume lab-scale MBR incorporating immersed PTFE flat-sheet membrane modules with different pore sizes (0.3, 0.5 and 1.0 μm) was operated for 19 days treating a synthetic wastewater. The experiment was interrupted twice at days 5 and 13 when the m...

To generate polyethersulfone membranes with a biocatalytically active surface, pancreatin was covalently immobilized. Pancreatin is a mixture of digestive enzymes such as protease, lipase, and amylase. The resulting membranes exhibit self-cleaning properties after “switching on” the respective enzyme by adjusting pH and temperature. Thus, the membrane surface can actively degrade a fouling laye...

Organic matter leads to one of the biggest problems in membranes: fouling. Developing efficient cleaning processes is therefore crucial. This study systematically examines how alginic acid fouling formed under different physical and chemical conditions affect osmotic backwashing cleaning efficiency in forward osmosis (FO). The fouling layer thickness before and after osmotic backwashing was mea...

corn steep water as effluent which arrives in environment from starch processing industry has adverse effects on the environment and also large volume of fresh water is wasted. corn step water is composed of high concentration of proteins, sugar, starch, vitamin and minerals, so it can be used as substrate for production of biological products. hence, corn steep water concentration is important...

Hydrolysis of the lignocellulosic biomass results in release high-value chemicals that during industrial processing can be recovered with membrane technologies. To maintain an effective performance membranes used technological biomass, their regular cleaning is essential. Although several guidelines may found for cases organic fouling, data fouled by hydrolyzed limited. Current research aimed t...

PURPOSE An earlier study showed that age-related changes in the inner collagen layer (ICL) inhibit RPE cell repopulation of human Bruch's membrane. The present study was undertaken to determine the effect of cleaning and/or an extracellular matrix (ECM) protein coating on the reattachment, apoptosis, proliferation, and final surface coverage of the transplanted RPE cells. METHODS Explants of ...

Corn steep water as effluent which arrives in environment from starch processing industry has adverse effects on the environment and also large volume of fresh water is wasted. Corn step water is composed of high concentration of proteins, sugar, starch, vitamin and minerals, so it can be used as substrate for production of biological products. Hence, corn steep water concentration is important...