FIELD: waste water treatment.
SUBSTANCE: application areas: cleaning of waste waters from producing enterprises, from basis storehouses for plant protection chemicals based on chlorinated hydrocarbons, and chemical-pharmaceutical industry. Method is accomplished by treating waste water with hydrogen peroxide and UV emission preceded by averaging and diluting waste water to concentration of organics 0.04-0.25 mmole/L and adjusting pH value to 7-9. Hydrogen peroxide is added in amounts 2.6 to 34.3 mmole/L and process is carried out stepwise, wherein 75-80% H2O2 of its total amount is used in the first step before irradiation and the rest is used 15-20 min after irradiation is started. Irradiation is performed under flow-circulation conditions using low-pressure mercury-quartz lamps until UV irradiation dose 0.3-0.9 J/cm2 is reached.
EFFECT: increased cleaning efficiency and reduced expenses.
2 tbl, 16 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PURIFICATION OF THE WASTE WATERS FROM THE DIFFICULT-TO-OXIDIZABLE ORGANIC COMPOUNDS | 2005 |
|
RU2305664C2 |
| METHOD OF MULTI-STAGE DECONTAMINATION OF POTABLE WATER | 2001 |
|
RU2188167C1 |
| COMBINED METHOD OF THE WATER DECONTAMINATION | 2005 |
|
RU2288191C1 |
| METHOD OF PRODUCTION OF THE DRINKING WATER | 2005 |
|
RU2288190C1 |
| METHOD OF DECONTAMINATION OF POTABLE WATER | 2001 |
|
RU2188170C1 |
| METHOD OF DECONTAMINATION OF CIRCULATING WATER OF SWIMMING POOL | 2001 |
|
RU2188166C1 |
| METHOD FOR FINE PURIFICATION OF WASTE WATER FROM DYES | 2011 |
|
RU2480424C2 |
| METHOD OF THOROUGH PURIFICATION OF WATER | 2001 |
|
RU2188801C1 |
| METHOD OF REGENERATING EXHAUSTED CHROME TANNING SOLUTION ON LEATHER PRODUCTION ON CURRYING ENTERPRISES | 1998 |
|
RU2129992C1 |
| INTEGRATED PROCESS FOR DISINFECTING WATER | 2002 |
|
RU2213706C1 |
