Just in the second half of 2021, there were news reports that methamphetamine was detected in South Korean sewage samples. It was terrible to think about it! Let's briefly understand the news below. In fact, from April 2020 to this year, the relevant departments have conducted regular water quality inspections on several sewage treatment plants, and found that drugs such as methamphetamine and psychoactive components can be detected in all sewage treatment. There is ice in it! From this point, it can be seen that it has been widely abused by society. For example, in the urban underground sewage system, it will hide a lot of metabolites, etc. The staff use the sewage flying method to collect sewage samples from the sewage treatment plant, analyze the number of drugs in the water, and then combine the sewage flow with the sewage treatment plant The population of the service area, thus reflecting the drug abuse situation. In fact, there is a reason to understand this news. After reading this news, it reflects that the country has a lot of methamphetamine abuse, and it seriously endangers water sources. Corresponding measures must be taken to ensure water quality! In addition, in order to prevent the degradation of methamphetamine by bacteria and microorganisms in the sewage, after the sample is collected, it needs to be stored in an environment of minus 20°C, and the cold chain transportation method is used to quickly deliver it to the ice storage Save it for inspection, and melt it before inspection. In fact, for water quality testing, the existence of methamphetamine is a very special situation. In my country, the items normally tested for sewage and wastewater are COD
, ammonia nitrogen, total phosphorus, total nitrogen, heavy metals, total residual chlorine, and some coliforms used to detect germs, etc. The items tested in different places will be different, but they all need to be used The water quality detector is used to carry out the operation, which is to perform single-parameter detection work of different parameters and different instruments!
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