Most bacterial source tracking (BST) methods are too expensive for most communities to afford. We developed targeted sampling as a prelude to BST to reduce these costs. We combined targeted sampling with three inexpensive BST methods, Enterococcus speciation, detection of the esp gene, and fluorometry, to confirm the sources of fecal contamination to beaches on Georgia's Jekyll and Sea Islands ...

Fat, oil and grease deposits in sewer systems are known as calcium based fatty acid salts that are responsible for a significant number of sanitary sewer overflows (SSOs) throughout the United States. Since 2007, clean water act (CWA) requires publicly owned treatment works (POTWs) to invest more than 15 billion dollars in new pipes and infrastructure to eliminate the overflows. However, little...

Microbiologically influenced corrosion (MIC) of concrete in sanitary sewer pipe and manholes is the result dilute sulfuric acid (H2SO4) dissolving cement matrix. The produced by a complex series chemical biochemical reactions. objectives this paper are: (1) to review basic science MIC process starting with various biological processes leading production acid; (2) discuss historical attempts for...

Microbiologically induced deterioration (MID) causes corrosion of concrete by producing acids (including organic and inorganic acids) that degrade concrete components and thus compromise the integrity of sewer pipelines and other structures, creating significant problems worldwide. Understanding of the fundamental corrosion process and the causal agents will help us develop an appropriate strat...

Article history: Accepted 11 May 2011 Available online 11 June 2011

In this study a polypropylene material with talcum reinforcement used for sewer pipes has been subjected to an annealing procedure at 80°C, roughly 60°C above the actual application temperature, in air for a time period of 18 months. As expected, examination of the material showed no significant decrease in mechanical or fracture mechanical properties due to the temperature exposure. However, s...

Microbes can influence the durability of civil engineering structures. Damage caused by microbes (known as biodeterioration) results in compromised structural integrity causing adverse effects on economic and social wellbeing. One key example is that microbiologically induced concrete corrosion (MICC) due to bacteria sewerage pipes which leads reduced lifespan sewer pipes. Antimicrobial materia...