Water quality characterization in real biofilm wastewater treatment systems by particle size distribution

Bioresource Technology
Juan J García-MesaErnesto Hontoria

Abstract

This article analyses the relation between wastewater quality parameters and particle size distribution (PSD) in three real wastewater treatment plants with different biofilm technologies: submerged biofilter system, trickling filter system, and rotating biological contactor system. The main quality parameters, (suspended solids, turbidity and COD), and PSD in the influent and effluent water of each different biofilm treatment were analyzed during 1year. The PSD was fitted using the power law (n(d(p))= partial differentialN(d(p))/ partial differentiald(p)=A x d(p)(-)(b)(Log(d)(p)())) obtaining the coefficients A and b to define the particle distribution. Mathematical correlations between this coefficients and the rest of parameters studied were found (SS=0.0713 x A(0.585), turbidity=4.549 x 10(-4) x A(1.096), COD=0.0201 x A(0.774)). The relation with the average particle size by mass was also found, (d(pma)=60.3137 x b(-2.242)). Moreover a relation between PSD and the particle elimination efficiency of the secondary treatment was study, (eta=2.844-2.498 x b(relative)+0.0863 x A(relative)). These expressions are very useful to understand the behavior of the biofilm treatment system using PSD analyses.

References

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Citations

Jan 22, 2015·Journal of Sports Sciences·Esther Ubago-GuisadoLeonor Gallardo
Jan 7, 2015·Current Microbiology·Nasr HoudaHassen Abdennaceur
Mar 13, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Darragh MullinsMartin Glavin
Oct 9, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·B Hande Gursoy-Haksevenler, Idil Arslan-Alaton

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