It is precisely because of the rapid development of the city that the sewage discharged by various industries and agriculture flows into the water body, causing the pollutant content in the water body far exceeds the cleaning capacity of the water body itself, causing changes in the physical and chemical properties of the water body, thus greatly affecting the quality of the water body, endangering human health and destroying the ecological environment. For such polluted water quality must take effective measures to treat and monitor the wastewater, this chapter water quality online monitoring instrument manufacturers to understand together with you several reasons for the error in the wastewater detection process. Details are as follows:
The Accuracy of the Device Itself is not Enough
The user must consider its performance and state comprehensively when selecting the equipment, and must actively find and exclude the influence of equipment accessories on the accuracy of the equipment when using it.
The Purity of the Reagent in the Test Process is not Enough
If the purity of the reagent is not enough, the conductivity of the test water is too large, etc., when detecting the oil in the water, the purity of carbon tetrachloride has a great impact on the work, and the difference in the blank curve of the same purity of the reagent from different manufacturers is obvious, and the influence of a small amount of unknown impurities in the reagent is not easy to ignore. Different methods and water quality monitors have different requirements for experimental water, and deionized water needs to be prepared when detecting mercury in water. The water quality of the experimental water should be tested and recorded at least once a day, and freshly prepared water should be used for sample determination.
Detect Errors Caused by Improper Operation of Staff
1.The staff did not use the test solution to wash the pipette before removing the liquid to be measured, resulting in an error;
2.The pipette with inappropriate capacity was selected to remove the liquid;
3.When the solution temperature is not constant to the room temperature, the solution is fixed volume operation, resulting in errors.
