Anaerobic treatment of vinasses by a sequentially mixed moving bed biofilm reactor.

نویسندگان

  • C Sheli
  • R Moletta
چکیده

Wine distillery wastewater, commonly called vinasses, was treated by an anaerobic moving bed biofilm reactor (AMBBR) with 32.9 litre available volume. The reactor was filled with 66% cylindrical polyethylene supports with density 0.84 g cm(-3) as a biofilm carrier. The reactor was sequentially mixed by a submerged centrifugal pump fixed to the bottom, and each mixing time just lasted 1.25 minutes. The organic loading rate (OLR) of the reactor were increased from 1.6 to 29.6 g sCOD l(-1) d(-1) (soluble chemical oxygen demands--sCOD) and hydraulic retention time (HRT) was decreased from 6.33 to 1.55 days accordingly. Soluble COD removal efficiency was 81.3-89.2% at an OLR of 29.6 g sCOD l(-1) d(-1). At the end of the experiment, 83.4% total biomass was attached on support and the specific density of support in the reactor was 0.93-1.05 g cm(-3), which increased by about 10.7-25% compared with that at the beginning of the study.

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عنوان ژورنال:
  • Water science and technology : a journal of the International Association on Water Pollution Research

دوره 56 2  شماره 

صفحات  -

تاریخ انتشار 2007