Investigation and evaluation methods for serious pollution of river water quality

In many online water quality monitoring, the situation of rivers is the most complex, because the quantity of rivers and lakes, water runoff, coastal pollution sources, etc. can affect the change of water quality. In order to solve the pollution of river

time:2022/11/24 14:49:14

Composition and function of urban drinking water online monitoring system

With the national attention to the safety of urban drinking water, various places have strengthened a series of monitoring methods for drinking water safety to ensure timely grasp of urban water quality information. At present, the most widely used method

time:2022/11/18 9:53:51

Steps for risk assessment of drinking water quality

The water quality risks of the water supply system can be identified as follows, such as causing major water sources and water supply, emergencies, emergencies and. Step execution: 1. Describe the water supply system: clarify the detailed information o

time:2022/11/15 15:46:55

What are the monitoring contents of water quality of rural domestic sewage treatment facilities

At present, compared with cities and towns in terms of water quality monitoring, there are still some difficulties in rural domestic sewage. For example, it is difficult to collect and treat sewage, domestic sewage and rainwater cannot be separated, there

time:2022/11/13 14:24:22

Monitoring quality control requirements for portable free chlorine water quality detector

There are many factors that will interfere with the final results when the portable free chlorine water quality detector is operated. Therefore, if you want to obtain accurate free chlorine parameters, you must be able to master the operation method of th

time:2022/11/10 10:39:09

Test method for basic detection range of online water quality CODcr analyzer

The inspection methods for the basic detection range of online water quality CODcr analyzer mainly include indication error, lower limit of quantification, repeatability, 24h low concentration drift, 24h high concentration drift, memory effect, voltage in

time:2022/10/28 10:38:25

Acceptance requirements for relevant supporting construction of online COD water quality detector

As one of the main parameters to judge water pollution, COD has been used in environmental protection, sewage treatment and other industries. Especially in the monitoring of river pollution, the change of organic pollutants in water can be learned in real

time:2022/10/25 10:43:28

Specific method for determination of total nitrogen by water quality detector

When it comes to total nitrogen, it mostly refers to organic nitrogen and inorganic nitrogen in water, such as nitrate nitrogen, dissolved nitrogen, etc. Generally, total nitrogen is used to determine the degree of eutrophication of the detected water bod

time:2022/10/21 13:16:18

Technical requirements for ammonia nitrogen water quality on-line automatic monitor

The ammonia nitrogen water quality online automatic monitor can monitor the change of ammonia nitrogen in water in real time, and upload the monitored data to relevant platforms through 485 and 232 communication modes. It can be applied to the monitoring

time:2022/10/19 9:37:32

Determination method of fluoride in water

The principle of using spectrophotometry to detect fluoride ion is to react with fluororeagent and lanthanum nitrate in the acetate buffer medium with pH 4.1 to generate a blue ternary complex. The absorbance of the complex at the 620nm wavelength is prop

time:2022/10/17 13:25:29