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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
1. What is water self-purification?
Water body self-purification: The polluted river undergoes physical, chemical, biological and other effects to reduce or transform the concentration of pollutants, and restore the water body to its original state, or reduce it from exceeding the water quality standard to being equal to the water quality standard.
2. What are the basic methods of sewage treatment?
The basic method of sewage treatment is to use various means and technologies to separate and remove the pollutants in the sewage, recycle them, or convert them into harmless substances to purify the sewage. Generally divided into water treatment and sewage treatment.
3. What are the current sewage treatment technologies?
Modern sewage treatment technology can be divided into physical treatment method, chemical treatment method and biological treatment method according to the principle of action.
4.Five Water Measurements
Biochemical oxygen demand (BOD): refers to the amount of oxygen required to degrade organic matter under aerobic conditions due to the action of microorganisms. It is a comprehensive index indicating that sewage is polluted by organic matter.
Theoretical oxygen demand (thOD): The theoretical heavy oxygen content of a certain organic matter in water. It usually refers to the theoretical value of the amount of argon required to completely oxidize carbon and ammonia in organic matter into carbon dioxide and water (that is, the amount of downgas calculated according to the complete argonization reaction formula.
Total oxygen demand (TOD): Refers to the substances that can be oxidized in water, mainly the amount of oxygen required when organic substances become stable oxides during combustion, and the results are expressed in mg/L of O2.
Chemical Oxygen Demand (COD): It is a chemical method to measure the amount of reducing substances in a water sample that need to be oxidized. Wastewater, wastewater treatment plant effluent and polluted water.
The oxygen equivalent of a substance (generally an organic substance) that can be oxidized by a strong oxidizing agent.
Total organic carbon (TOC): refers to the total amount of carbon contained in dissolved and suspended organic matter in water.