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Kunshan Pinhong EPT Co.,Ltd
Kunshan Pinhong EPT Co.,Ltd
Add : (Qiandeng Yuanchuang Base) No. 125, Jinxing South Road, Qiandeng Town, Kunshan, Jiangsu, China
Tel : （0086）15995617314
Fax : +86-512-50130524
E-mail :lvfang@ksphxs.com
5. What kind of situation should be treated by biochemical method?
It is generally believed that the sewage with a BOD/COD value greater than 0.3 is suitable for biochemical treatment.
6. What is the hygienic standard for drinking water?
Physical indicators of drinking water hygiene standards: color, turbidity, odor and taste.
7. What is water eutrophication?
Eutrophication of water body is a natural phenomenon that occurs in fresh water and is caused by the sudden excessive proliferation of algae due to the high content of nitrogen, phosphorus, and potassium in the water body.
The main cause of water eutrophication is that ammonia, phosphorus, potassium and other elements are discharged into the surface water body with slow flow rate and long renewal cycle, which makes algae and other aquatic organisms grow and reproduce in large numbers, and the rate of organic matter production far exceeds the consumption rate. The process of accumulating organic matter and destroying the balance of aquatic ecology.
8. What is dissolved oxygen?
Oxygen dissolved in water is called dissolved oxygen. The organisms and aerobic microorganisms in the water body rely on dissolved oxygen for their survival. Different microorganisms have different requirements for dissolved oxygen.
9. What are the basic methods of modern sewage treatment?
Modern sewage treatment technology can be divided into physical treatment method, chemical treatment method and biological treatment method according to the principle of action.
10. What is the stability of the colloid?
Colloidal stability: refers to the characteristic that colloidal particles maintain a dispersed suspension state in water for a long time.
11. What is an electric bit?
Dynamic potential: The potential on the sliding surface of the colloid is the potential.
12. How do hydrophobic colloids form large particles?
For dry hydrophobic colloids, in order to make the colloids collide with each other through Brownian motion to form large particles, the repulsion energy peak must be reduced or eliminated, and the way to reduce the non-back energy peak is to reduce
Lower or eliminate the potential of colloidal particles.
13. What is the role of adsorption bridging?
Adsorption bridging refers to the adsorption and bridging of polymer substances and colloidal particles.
14. What is the function of the grille?
The function of the grille: to intercept coarse suspended matter or floating impurities.