- Tytuł:
- Photochemical oxidation model of organic pollutants in greywater from a small household
- Autorzy:
- Bielski, Andrzej
- Powiązania:
- https://bibliotekanauki.pl/articles/207989.pdf
- Data publikacji:
- 2020
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
COD
greywater
small household
ChZT
woda szara
małe gospodarstwo domowe - Opis:
- The treatment of coagulated greywater from a small household was investigated. The processes of oxidation of organic compounds with hydrogen peroxide combined with ultraviolet radiation (H2O2/m3/UV) was described. Greywater with various initial COD and TOC concentrations was used in the H2O2/m3/UV process. The process parameters were hydrogen peroxide doses 0.5–4.0 kg H2O2/m3, UV (254 nm) light intensity 75.5 W/m2 and irradiation time – 1 h. The oxidation efficiency varied broadly from 15 to 98% and higher COD values corresponded to lower oxidation efficiencies. The average hydrogen peroxide consumption per kg of COD w was = 12.2 g H2O2/m3/g O2 COD, while per TOC it was w′ = 69.0 g H2O2/m3/g C. The experiments enabled one to developed mathematical models for coagulation and oxidation kinetics. The models showed that at the initial COD = 859 g O2/m3, the coagulant dose of 100 g Al3+/m3, the hydrogen peroxide dose of 4 kg H2O2/m3 and the UV irradiation time of 3 h it is possible to decrease the COD by 98.4%.
- Źródło:
-
Environment Protection Engineering; 2020, 46, 1; 91-115
0324-8828 - Pojawia się w:
- Environment Protection Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł