Effect of pre-flotation by oily waste water combine treatment

Kiss, Zsolt László and Keszthelyi-Szabó, Gábor and Hodúr, Cecilia and László, Zsuzsanna (2014) Effect of pre-flotation by oily waste water combine treatment. In: XXXV. Óvári Tudományos Nap: A magyar és nemzetközi agrár- és élelmiszer-gazdaság lehetőségei, 2014.11.13, Mosonmagyaróvár, Magyarország.


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Large amount of oily wastewater is generated in process industries. The waste waters containing oil in low concentrations generally can not be purified by conventional treatments. The aim of our work was to investigate the effect of pre-flotation before ozonation combined with microfiltration (MF). The results showed that 2 minute long pre-flotation effectively reduced the oil content of the waste water, enhancing the efficiency of combined process. About 20% increased the COD elimination efficiency with pre-flotation and pre-ozonation combined with MF (90,00%) as alone the MF (70,45%). It was found that pre-ozonation changed the chemical nature of the emulsified particles, but depend on the time of the ozonation and therefore affected the filtration parameters, such as the retention increasing, and membrane surface hidrophobicity changed.

Item Type: Conference or Workshop Item (Lecture)
Subjects: T Technology / alkalmazott, műszaki tudományok > TD Environmental technology. Sanitary engineering / környezetvédelem, hulladékkezelés, egészségügyi mérnöki technika (ivóvízellátási és szennyvízkezelési technika)
Depositing User: Dr Zsuzsanna László
Date Deposited: 24 Sep 2015 12:07
Last Modified: 24 Sep 2015 12:07

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