Residual chlorine is one of the most special detection indicators in tap water, because it is a substance added to tap water artificially, and it is a substance that must be added but cannot be added in excess. Its main function is to inhibit the number of bacteria in the process of water delivery, which will be consumed over time. However, in actual situations, due to various situations, the residual chlorine in tap water will disappear or be too high, causing water trouble. Because the pipe network is too long or the pollution is serious, the residual chlorine in tap water will disappear too quickly, and it will not have the effect of inhibiting bacteria. At this time, it needs to be supplemented artificially, and often due to the lack of necessary detection tools in the process of supplementing, Adding based on personnel experience will cause excessive residual chlorine. The most direct problem when residual chlorine is excessive is that the water has a strong chlorine smell. In addition, some organic matter in the water may chemically react with residual chlorine to form toxic and harmful chemicals. At the same time, in industrial water treatment, excessive residual chlorine will accelerate the damage of water treatment equipment and increase production costs. Whether it is in domestic life or industrial application, as long as tap water is drawn, the detection of residual chlorine is necessary. Since residual chlorine is a basic indicator of tap water, its detection method is relatively complete, and a complete detection method is provided in GB5750-2006. At the same time, since residual chlorine detection is a basic water quality indicator of tap water, it is of great significance. A variety of detection tools are also provided, including instruments, kits, test strips, etc. Users can choose different products according to actual needs and measurement ranges. Residual chlorine detector
: Generally, electrochemical or spectrophotometric method is used for rapid residual chlorine detection. Its accuracy is high, which is basically similar to traditional laboratory analysis methods, but it is simpler and easier to use. Residual chlorine test box: a type of product extended from the standard method. The colorimetric method is used to judge the residual chlorine in the water through the color reaction between the residual chlorine in the water and a special chemical agent. This type of product can detect the lower limit Generally, it can reach 0.05mg/L, which can meet the needs of ordinary households and industrial users. Residual chlorine test strip: Compared with the residual chlorine test box, its detection range will be larger, but the accuracy will be worse than the residual chlorine test box. . Usage is similar to PH test paper. If the user has higher requirements, you can choose a residual chlorine detector. As a consumer user or a general industrial site user, you can also choose a low-cost residual chlorine detection box.
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Further dialogue of BOQU between the approaches, the chapter concludes, could lead to actionable advice on more robust policies that drive both structural change and competitiveness upgrading.