There are 5 kinds of industrial wastewater treatment processes
Release time:
2024-03-01 00:00
Source:
01
biological treatment
Biological treatment methods mainly include activated sludge process, biological aerated filter, constructed wetland and so on. Among them, the activated sludge method is a commonly used biological treatment method, by adding a certain number of microbial flora in the reaction pool for degradation, the organic matter in the wastewater is decomposed into harmless carbon dioxide, water and organisms, etc.
02
physical and chemical treatment
The physical and chemical treatment method mainly includes precipitation method, filtration method, adsorption method, oxidation method and so on. Among them, the precipitation method is one of the most common physical and chemical treatment methods. By adding a certain amount of chemical agents and chemically reacting with pollutants in the wastewater, the pollutants are converted into solid substances that are easy to precipitate and are removed in subsequent processing.
03
Membrane Technology Treatment
Membrane technology treatment mainly includes ultrafiltration membrane, nanofiltration membrane, reverse osmosis membrane, etc., which has the advantages of high efficiency and energy saving. In the treatment process, the wastewater passes through the membrane separation device, which can separate the soluble ions and suspended solids in the wastewater, so as to achieve the purpose of purification.
04
activated carbon adsorption treatment
Activated carbon adsorption treatment method mainly uses the characteristics of high specific surface area and large pore size of activated carbon to adsorb organic matter and trace heavy metals in wastewater, so as to achieve the purpose of purification.
05
electrochemical treatment
Electrochemical treatment methods mainly include electrodeposition, electrolytic oxidation, electrolytic reduction, etc. Among them, the electrodeposition method can be used to remove heavy metal ions, the electrolytic oxidation method can be used to remove refractory organic matter, and the electrolytic reduction method is mainly used to recover metal ions in wastewater.
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