Treatment of a polluted stream by a fixed-bed biofilm reactor with sludge discharger and backwashing system [An article from: Chemical Engineering Journal]

This digital document is a journal article from Chemical Engineering Journal, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
A fixed-bed biofilm reactor with sludge discharger and backwashing system was used as an on-site pilot facility to treat polluted stream water. The annual mean influent concentrations of biochemical oxygen demand (BOD) and total suspended solid (TSS) were 73.9 and 81.5mg/l, and the removal efficiencies were 87.3 and 86.8%, respectively. The sludge discharger and backwashing system periodically removes influent TSS and excess biofilm, and maintains a constant effluent concentration (BOD: 6-10mg/l, TSS: 5-11mg/l). Overall, this system has the potential for long-term water quality improvement of polluted streams without bed clogging.