FIELD: technology of water and air purification.
SUBSTANCE: invention relates to decontamination of wastewater containing organic dyes. To carry out the process, waste water treatment is carried out at a pH of 6–8 and a temperature of 40–60 °C hydrogen peroxide in presence of a cobalt-containing catalyst based on a ceramic block-cellular material. Cobalt content in the catalyst is 0.1–0.15 % by weight.
EFFECT: invention provides for absence of secondary impurities and an additional purification step from the finely divided catalyst particles.
1 cl, 1 tbl, 8 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DESTRUCTION OF ORGANIC DYES IN WASTE WATER | 2017 |
|
RU2656463C1 |
| METHOD FOR CATALYTIC OXIDATION OF ORGANIC DYES IN WASTE WATER | 2023 |
|
RU2815959C1 |
| METHOD OF WASTE WATER CLEANING | 2007 |
|
RU2359921C2 |
| METHOD FOR MANUFACTURING OF CATALYST FOR LIQUIDPHASE HYDRATION OF 2',4',4-TRINITROBENZANILIDE | 2013 |
|
RU2532733C1 |
| METHOD OF OBTAINING MONONITROTOLUENE WITH INCREASED P-ISOMER CONTENT | 2007 |
|
RU2346930C1 |
| METHOD OF PURIFYING WASTE WATER FROM AZO DYES | 2010 |
|
RU2430890C1 |
| PHOTOCHEMICAL METHOD OF NEUTRALISATION OF THIOCYANATE-CONTAINING WASTEWATER AND SEWAGE | 2016 |
|
RU2626204C1 |
| METHOD OF CATALYST PREPARING FOR HYDROGEN OXIDATION | 2014 |
|
RU2546120C1 |
| METHOD OF EXTRACTING CADMIUM FROM FLUSH WATER CONTAINING CYANIDES | 2019 |
|
RU2712325C1 |
| METHOD OF ELECTROFLOTATION EXTRACTION OF PAINTS AND VARNISHES | 2022 |
|
RU2799645C1 |
