Thermal pollution is a kind of energy pollution, which is caused by the discharge of high temperature wastewater from industrial and mining enterprises. So what happens when a body of water is thermally polluted? This chapter water quality online monitoring instrument manufacturers to understand the problem of water thermal pollution together with you.

In some thermal power plants and various industrial thermal processes, if the cooling water is directly discharged without taking measures, it will increase the water temperature, speed up the chemical reaction and biochemical reaction in the water, increase the toxicity of some toxic substances (such as cyanide, heavy metal ions, etc.), and reduce the dissolved oxygen, which will affect the survival and reproduction of fish. Accelerate the reproduction of some bacteria, promote water weeds, anaerobic fermentation, foul odor.

Fish growth has an adaptive water temperature range, water temperature is too high or too low will affect its growth, serious will lead to death. Of course, different fish will have different requirements for water temperature, such as: tropical fish for 15 ~ 32 ° C, temperate fish for 10 ~ 22 ° C, cold fish for 2 ~ 10 ° C range. For example, although trout live in 24 ° C water, its breeding temperature is lower than 14 ° C. The upper limit of water temperature that aquatic organisms can live in is 33 ~ 35℃.

In addition to the above water thermal pollution, there are other aspects of pollution more ecological environment and human health are harmful! Relevant departments have required major enterprises to install water quality monitoring equipment, real-time monitoring of water quality changes, targeted treatment and then discharge.