Photochemical oxidation model of organic pollutants in greywater from a small household

• Autorzy: Bielski Andrzej

Identyfikatory

DOI

10.37190/epe200107

• Języki publikacji: EN

Abstrakty

EN

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%.

Słowa kluczowe

EN

COD; greywater; small household

PL

ChZT; woda szara; małe gospodarstwo domowe

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2020
• Tom: Vol. 46, nr 1
• Strony: 91--115
• Opis fizyczny: Bibliogr. 24 poz., tab., rys.

Twórcy

autor

Bielski Andrzej

• Department of Water Supply, Sewerage and Environmental Monitoring, Cracow University of Technology, 31-155 Cracow, Warszawska 24

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).