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Combination of ultrasonication and ultrafiltration for dairy wastewater treatment

Kertész, Szabolcs and Kovács, Ildikó and Hodúr, Cecilia and Keszthelyi-Szabó, Gábor and László, Zsuzsanna (2015) Combination of ultrasonication and ultrafiltration for dairy wastewater treatment. In: IV. Synergy International Conference Engineering, Agriculture and Green Industry Innovation, 12-15. October 2015., Gödöllő.

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Abstract

Novel wastewater treatment is necessary to effectively decrease the organic load of dairy wastewater before disposal [1]. In this work the feasibility of ultrasonication and ultrafiltration processes were combined. The efficiency of the single ultrafiltration and ultrasonic irradiation as pretreatment processes followed by pressure-driven membrane ultrafiltration, as well as the efficiency of the advanced hybrid process were tested. Ultrasound irradiation generates a number of physical forces, what can be generated by the alternating compression and rarefaction cycles, like vibration and physical agitation [2]. The purification of dairy wastewater was investigated. Different nominal molecular weight limit and type of ultrafiltration membranes were used. Conductivity, turbidity and chemical oxygen demand membrane retentions and membrane, gel-layer and inner porous fouling resistances were analyzed and compared in single and combined processes. Furthermore, to understand the fouling mechanisms in depth, the influence of the membrane fouling on the contact angle results was also investigated. Keywords: dairy wastewater; pretreatment; ultrasound; ultrafiltration (UF); membrane fouling, contact angle Acknowledgements This project was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences. The authors are also grateful for the financial support provided by the project Hungarian Science and Research Foundation (OTKA contract number K 105021).

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology / alkalmazott, műszaki tudományok > TD Environmental technology. Sanitary engineering / környezetvédelem, hulladékkezelés, egészségügyi mérnöki technika (ivóvízellátási és szennyvízkezelési technika)
Depositing User: Dr. Szabolcs Kertész
Date Deposited: 25 Jan 2016 09:00
Last Modified: 25 Jan 2016 09:07
URI: http://real.mtak.hu/id/eprint/32670

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