Application of UF/NF/RO membranes for treatment and reuse of rendering plant wastewater (CROSBI ID 233178)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Racar, Marko ; Dolar, Davor ; Špehar, Ana ; Košutić, Krešimir
engleski
Application of UF/NF/RO membranes for treatment and reuse of rendering plant wastewater
The treatment of animal by-products in rendering plants consumes large amounts of water generating wastewater with high content of organic matter. Literature review has shown that there is no study that evaluated the application of membrane technology for the treatment of rendering plant wastewater (RPW) and its reuse. A combination of sequential batch reactor (SBR), sand filtration, ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO) was used to treat the RPW. Three UF (MW, GM, and CQ), two NF (NF90 and NF270), and one RO membrane (XLE) were tested along with the water analysis (conductivity, pH, turbidity, chemical oxidation demand, and contents of carbon, nitrogen, and phosphates) at each step of the process. During UF, the high content of effluent organic matter (EfOM) caused severe fouling. Sand filtration was an effective pretreatment for UF, lowering the fouling. The most suitable combination of membranes according to their separation efficiency and permeability was selected. The quality of permeates confirms its reusability in the process for washing and steam generation.
rendering plant ; wastewater reuse ; ultrafiltration ; nanofiltration ; reverse osmosis
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Podaci o izdanju
105
2017.
386-392
objavljeno
0957-5820
10.1016/j.psep.2016.11.015
Povezanost rada
Kemija, Kemijsko inženjerstvo, Temeljne tehničke znanosti, Interdisciplinarne tehničke znanosti