When it comes to coliform bacteria, it can be regarded as an important indicator in water quality monitoring for drinking water and medical wastewater. The main purpose is, of course, to determine the pollution status of the water quality. How much coliform bacteria is appropriate in drinking water? Let’s have a simple understanding in this article!
In China’s “Biological Drinking Water Hygiene Standard” GB5749-85, the bacterial standards for domestic drinking water stipulate the following three situations:
1.How many bacteria should be specified for the total bacterial count? If measured with 1 ml of water, the quantity should not exceed 100;
2.The qualified quantity of coliform bacteria, set with 1 L of water, the coliform bacteria in the water should not exceed 3;
3.If the water source for domestic drinking water can be provided through chlorine disinfectants, then the quantity of coliform bacteria, on average per liter, should not exceed 1000, but if it undergoes purification treatment and disinfection to be used as a drinking water source, the quantity of coliform bacteria on average per liter should not exceed 10,000.
How to Know the Quantity of Coliform Bacteria in the Water?
At this time, the water quality analyzer can be used to conduct detection work on the coliform bacteria in the water. The Hangzhou Modi WECT-900 Coliform Bacteria Online Analyzer conducts detection work through the enzyme substrate method. The enzyme and bacterial culture react, and the change in the light signal is proportional, thereby reflecting the quantity of coliform bacteria in the water. The main features of this product are:
1.This water quality analyzer is easy to operate, can react the entire monitoring process in real time, and will dynamically display the reaction curve of the test items;
2.It can automatically perform control and calibration, ensuring the reliability and consistency of the test results;
3.Fully automatic control, can program the detection parameters, and is also suitable for different occasions to automatically start the cycle detection work for some suspicious water samples. When the power supply of the start control center is cut off, it can automatically restore the working state after it is powered on again;
4.The cost for using and maintaining this instrument is relatively low. It can automatically complete the dispensing, mixing and cleaning of water samples and reagents, avoiding the occurrence of cross-contamination.
