Shen ChangHong
To be a supplier of high quality
laboratory analytical instruments in China.
Shen ChangHong
To be a supplier of high quality
laboratory analytical instruments in China.
In recent years, scholars at home and abroad have proposed that fisheries have entered the era of ecology, and traditional experience management will gradually give way to ecological management. The combination of fishery and ecology is the inevitable trend of fishery development. We should change or even end the backward situation of fishery production solely managed by administration and experience as soon as possible, and use ecological theories and methods to carry out extensive and in-depth research on the increase and cultivation of freshwater fishery, so as to continuously improve the scientific and production level of fishery. Specifically, the relationship between water quality analysis and freshwater fishery growth and aquaculture is as follows.
Medical sewage refers to the sewage discharged by hospitals (general hospitals, professional hospitals and other types of hospitals) to the natural environment or urban pipelines. In addition to the general domestic sewage, the water quality also contains chemicals, radioactive waste water and pathogens. Therefore, it can only be discharged after treatment, especially the sewage discharged from infectious disease wards such as hepatitis can only be discharged after disinfection and sterilization.
Ammonia nitrogen refers to the nitrogen in the form of free ammonia (NH3) and ammonium ion (NH4 +). The nitrogen content of animal organic matter is generally higher than that of plant organic matter. At the same time, the nitrogen-containing organic matter in human and animal feces is very unstable and easy to decompose into ammonia. Therefore, when the ammonia nitrogen content in water increases, it refers to the combined nitrogen in the form of ammonia or ammonium ion. The following problems should be paid attention to during the determination of ammonia nitrogen in water quality:
The novel coronavirus pneumonia was detected in the stool of the third people's Hospital in Shenzhen recently. Although it can not prove that the virus is still infectious, how to treat and avoid secondary pollution of medical sewage related to new coronavirus has become an important issue. In general, how to deal with medical sewage? In view of this epidemic situation, what should be paid attention to in hospital sewage treatment?
Novel coronavirus novel coronavirus pneumonia novel coronavirus pneumonia prevention and control period during the environmental monitoring agency to resume work and re production of epidemic prevention and control work, comprehensively prevent enterprise personnel infection, protect staff health, ensure the normal operation of municipal infrastructure, maintain social security and stability, win the new crown pneumonia epidemic prevention and control battle, I organized the "Shenzhen new coronavirus pneumonia epidemic" environmental monitoring agency during the epidemic situation Guidelines for resumption of production are hereby printed and distributed to all units. Please follow them.
Water quality monitoring is a process of monitoring and measuring the types of pollutants in water, the concentration and change trend of various pollutants, and evaluating the water quality. The monitoring range is very wide, including the uncontaminated and polluted natural water (river, river, lake, sea and groundwater) and various industrial drainage. There are several kinds of water commonly used in the laboratory or laboratory
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