The ozone produced by the ozone generator has a certain oxidation capacity for organic matter, and the secondary treatment of water with ozone has the following characteristics in terms of organic matter removal:
(1) Organic compounds that can be oxidized by ozone are: proteins, amino acids, lignin, humic acid, chain unsaturated compounds and cyanide.
(2) The oxidation of organic matter by ozone can only be partially oxidized to form intermediate products, and it is difficult to reach the complete inorganic stage of the formation of CO2 and H2O.
(3) The intermediate products formed by ozone oxidation of organic matter are mainly: formaldehyde, pyruvate, pyruvaldehyde, acetic acid. However, if there is enough ozone, oxidation will continue, and other substances except acetic acid may be decomposed by ozone.
(4) Sewage is treated with ozone, which can improve the biodegradability of sewage.
(5) When ozone is used to treat secondary treated water, the COD removal rate is related to pH value. The COD removal rate can be significantly improved with the increase of PH value.
Ozone oxidation method in wastewater treatment is mainly the oxidation and decomposition of pollutants, mainly has the following applications:
(1) printing and dyeing wastewater treatment ozone oxidation treatment of printing and dyeing wastewater is mainly used for decolorization, fuel color is mainly caused by unsaturated groups in the fuel, ozone can open these unsaturated building, the generation of small molecular substances, so that it loses color, but its ozone on sulfur, reduction, paint and other insoluble dispersed fuel decolorization effect is poor.
(2) The treatment of cyanide-containing wastewater uses the strong oxidation of ozone to reduce cyanide-containing ions to relatively small toxic ions, and does not add other chemicals in the treatment process, and the water quality is better after treatment and the operation is simple.
(3) The treatment of phenol containing wastewater uses the strong oxidation of ozone to reduce phenol to o-quinone through a multi-step reaction.
Qingdao Aikang Environmental Protection Technology Co., Ltd. is a 12-year focus on ozone generator R & D, manufacturing and application of professional companies, the company has been to serve customers as the purpose, to technology as the guide, independent development of ozone generator manufacturing and application technology, obtained dozens of zhuanli, has a sincere cooperation generator manufacturing and application team.
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