Most Wanted Microbes – Iron Reducing Bacteria (IRB)

  While sulfate reducing bacteria (SRB) are widely known as a major cause of MIC in carbon steel, other bacteria with different physiological properties have been identified as potential contributors in the corrosion process as well.  Iron reducing bacteria (IRB), for example, are heterotrophic facultative anaerobes which reduce ferric ions to ferrous ions under anaerobic… Read More

No Grey Area to This Issue: Slimes of All Colours Can Cause Costly Problems in Papermaking Processes

  Pink, orange, red, brown and grey – paper mill slimes can come in an endless range of colours.  What contributes to these variances in colour? Microorganisms.  Different species – which live within a slime – produce different hues.  Unfortunately, you won’t find gold at the end of that rainbow.  In fact, it’s quite the… Read More

Most Wanted Microbes – Coliforms

From the editor: This is the ninth post in an ongoing series profiling microorganisms of particular significance in water and wastewater systems. In this series we will cover microorganisms of many types including some that are beneficial, inhibitory and pathogenic. Coliforms are a group of gram-negative, rod-shaped bacteria that generally belong within the family of… Read More