Coliform bacteria are mainly found in the feces of warm-blooded animals, areas with frequent human activities, and natural environments, featuring a wide distribution. Human feces contain a large number of typical Escherichia coli, while coliform bacteria are prevalent in the external natural environment. The concentration of coliform bacteria indicates the degree of fecal contamination in water, and further reflects the potential harm level to human health.
Feces are intestinal excreta of humans, including those from healthy people, patients with intestinal diseases and pathogen carriers. Such substances can cause severe water pollution, easily lead to poisoning and other adverse consequences, and pose potential threats to both the ecological environment and human health. Therefore, the count of coliform bacteria must be strictly controlled in food hygiene and water safety supervision to ensure compliance with standard indicators.
In short, coliform bacteria are one of the important indicators for Medical Wastewater Monitoring and Frinking Water Monitoring. Why exactly are coliform bacteria adopted to assess water safety? The main reasons are analyzed as follows:
1.Specificity of pollution sources
As mentioned above, coliform bacteria originate from the intestinal tracts of humans and warm-blooded animals and are excreted along with feces. Monitoring this indicator is intended to determine the extent of fecal contamination in water.
2.Simple detection and compliance with the requirements of indicator bacteria
Coliform bacteria have strong adaptability and can survive for a certain period outside the host. In contrast, most pathogenic bacteria have poor stress resistance and tend to die quickly after leaving their hosts, resulting in undetectable or inaccurate test results that interfere with water quality assessment.
In addition, coliform bacteria exist in large quantities in water, making them easy to detect. Most pathogenic bacteria are low in quantity and likely to be overlooked during detection, leading to unreliable test data.
Furthermore, the detection procedure for coliform bacteria is simple, with reliable, efficient and time-sensitive test results — advantages that complex pathogenic bacteria cannot match.
What instruments are used to detect coliform bacteria in water?
The Online Coliform Bacteria Analyzer manufactured by Hangzhou Modi is specially designed to detect the content of coliform bacteria in water. The detected data can accurately judge the specific degree of fecal contamination in water bodies.
