Text this: Evaluation of membrane fouling by different sludge fractions from a long sludge retention time membrane bio-reactor

 __   _    _    _    _    _    _    _    _    _   
| || | || | || | || | || | || | || | || | \  / || 
| '--' || | || | || | || | || | || | || |  \/  || 
| .--. || | \\_/ || | \\_/ || | \\_/ || | .  . || 
|_|| |_||  \____//   \____//   \____//  |_|\/|_|| 
`-`  `-`    `---`     `---`     `---`   `-`  `-`