Recalculation of biological solids over a fixed-film biological reactor

Removal of ammonia from drinking water by biological nitrification in a fixed film reactor

A Biological Analysis of a Sequence Batch Reactor, Investigating the Use of Fixed-Film Media to Increase Treatment Efficiency

The Cromaglass® Corporation, based in Williamsport, PA, manufactures Sequence Batch Reactor (SBR) systems for domestic wastewater treatment. A Cromaglass® CA-60, capable of treating 6,000 gallons of wastewater per day, was installed in 2005 at Hepburn-Lycoming Elementary School, part of the Williamsport School District. This SBR was the subject of a study by the Lycoming College Clean Water Ins...

A comparative study of anaerobic fixed film baffled reactor and up-flow anaerobic fixed film fixed bed reactor for biological removal of diethyl phthalate from wastewater: a performance, kinetic, biogas, and metabolic pathway study

BACKGROUND Phthalic acid esters, including diethyl phthalate (DEP), which are considered as top-priority and hazardous pollutants, have received significant attention over the last decades. It is vital for industries to select the best treatment technology, especially when the DEP concentration in wastewater is high. Meanwhile, anaerobic biofilm-based reactors are considered as a promising opti...

Model structure simplification of a biological reactor

Biological solids reduction using the Cannibal process.

A laboratory study of the Cannibal process was undertaken to determine if the Cannibal system would generate less sludge compared with a conventional activated sludge system. Side-by-side sequencing batch reactors were operated--one using the Cannibal configuration and the other as conventional activated sludge. It was found that the Cannibal process generated 60% less solids than the conventio...