Removal of petroleum compounds from water in coagulation process

• Autorzy: Puszkarewicz A.

Warianty tytułu

PL

Usuwanie związków ropopochodnych z wody w procesie koagulacji

• Języki publikacji: EN

Abstrakty

EN

Petroleum compounds represented by two types of oil emulsions of different initial concentration, prepared on the basis of diesel oil and mixol engine oil, were removed from water by volumetric coagulation method. In the process, the use was made of the following reagents: a powdery diatomite (fraction below 0.5 mm), such coagulants as aluminium sulphate and iron chloride as well as cationic flocculent. Due to coagulation performed with the use of coagulants only the oil content decreased considerably, provided that the coagulant dose was high (from 220 to 320 mg/dm3). In order to improve the coagulation efficiency and to reduce the doses of basic coagulants, a powdery diatomite of a remarkable sorptive capability was used. In the tests, coagulation by powdery diatomite used in various doses proved to be most efficient at the dose of 0.8 g/dm3 (for both types of emulsion and the coagulants applied). At this dose of diatomite, the most effective dose of each coagulant (Al 2(SO4)2 and FeCl3) reached 120 mg/dm3. In the removal of fuel oil (using both coagulants) and the mixol oil by means of Al2(SO4)2, a 100% reduction of oils was obtained.

PL

Związki ropopochodne usuwano z roztworów wodnych metodą koagulacji objętościowej. Z oleju napędowego i oleju silnikowego mixol sporządzono dwa rodzaje emulsji olejowych o różnych stężeniach początkowych. Do usunięcia związków ropopochodnych zastosowano diatomit pylisty (frakcja poniżej 0,5 mm), koagulanty (A12(S04)3ź18 H20 i FeCl3-6 H20) i flokulant (polielektrolit kationowy Zetag 50). W wyniku koagulacji przeprowadzonej z zastosowaniem samych koagulantów znacznie zredukowano zawartość olejów, ale jedynie wtedy, gdy dawki koagulantów były duże (od 220 do 320 mg/dm3). Aby poprawić efektywność usuwania niepożądanych związków i zmniejszyć dawki koagulantów podstawowych, do emulsji dodano diatomit pylisty, który łatwo sorbuje oleje. Badania wykazały, że optymalna dawka diatomitu dla obu rodzajów emulsji wynosiła 0,8 g/dm3, gdy każdy z obu koagulantów stosowano w dawce 120 mg/dm3. Dzięki tej procedurze uzyskano 100% usunięcia olejów.

Słowa kluczowe

EN

coagulation; water teatment; petroleum compounds

PL

koagulacja; oczyszczanie wody; związki ropopochodne

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2008
• Tom: Vol. 34, nr 1
• Strony: 5--14
• Opis fizyczny: bibliogr. 19 poz.

Twórcy

autor

Puszkarewicz A.

• Faculty of Civil and Environmental Engineering, Rzeszow University of Technology, ul. Powstańców Warszawy 6, 35-959 Rzeszów,

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