When it comes to the monitoring of coliform bacteria in water, the first thing that comes to mind for most people should be medical wastewater. Because the population in hospitals is complex, it is quite normal for medical wastewater to be contaminated by coliform bacteria. So, apart from medical wastewater which requires the monitoring of coliform bacteria, what other water sources need to be monitored for coliform bacteria? Of course, there’s also drinking water!
To ensure the safety of people’s drinking water, China has long promulgated relevant standards for drinking water indicators, among which coliform bacteria are one of the important indicators. Why is it necessary to monitor coliform bacteria? There are many microorganisms in natural water bodies. To determine whether there are pathogenic microorganisms in the water, it is necessary to monitor them. Among them, coliform bacteria exist! Because there are a large number of coliform bacteria in human or animal feces, if drinking water is contaminated by feces, the content of coliform bacteria will be detected in the water body. In addition, the resistance of coliform bacteria to disinfectants is similar to that of other intestinal pathogenic bacteria. Therefore, when coliform bacteria are eliminated, other intestinal bacteria will also be eliminated successively. Therefore, in view of the common characteristics of pathogenic microorganisms, we can select coliform bacteria as the indicator bacteria of pathogenic microorganisms. The content of coliform bacteria in water can, to a certain extent, reflect the pollution of water quality, which has become an important indicator for evaluating water quality safety. We can use the WECT-900 Coliform Bacteria Online Analyzer produced by Hangzhou Modi to detect the specific content of coliform bacteria in water!
What consequences will there be if the coliform bacteria in drinking water are not tested and water sources with excessive coliform bacteria are directly consumed? Diseases caused by excessive coliform bacteria:
1.Exenteral infection: This situation is mostly endogenous infection, mainly urinary tract infection, such as cystitis, etc. Of course, it can also cause symptoms such as cholecystitis and peritonitis. In addition, for some special groups, such as infants and the elderly, coliform bacteria can invade the bloodstream and cause sepsis. If it is a premature baby, especially one within 30 days after birth, it is very likely to suffer from coliform meningitis.
2.Acute diarrhea: Some serotypes of coliform bacteria can cause diarrhea in humans. Among them, enterotoxic coliform bacteria can cause diarrhea, presenting with mild watery diarrhea, and may also lead to cholera-like symptoms. However, diarrhea is usually self-limiting and can generally be cured within 2 to 3 days, while malnutrition usually lasts for a week or more and may recur! Another point is that enteropathogenic coliform bacteria are the main pathogenic bacteria causing infantile diarrhea. They are highly contagious and can even lead to death in severe cases. Once bacteria invade the intestines, they mainly multiply in large quantities in the jejunum, duodenum and the upper part of the ileum. Therefore, bloody coliform bacteria in the intestines can cause sporadic or explosive hemorrhagic colitis, etc.
