Abstract:
:The influence of predation on the biofilm activated sludge (BAS) process is studied using a unified model that incorporates hydrolysis and predation phenomena into the two stages of the BAS system: moving bed biofilm reactor pre-treatment (bacterial-predator stage) and activated sludge (predator stage). The unified model adequately describes the experimental results obtained in a cellulose and viscose full-scale wastewater plant and has been used to evaluate the role and contribution of predator microorganisms towards removal of COD, nutrient requirements, sludge production and microbial distribution. The results indicate that predation is the main factor responsible for the reduction of both nutrient requirements and sludge production. Furthermore, increasing the sludge retention time (SRT) does not influence the total biomass content in the AS reactor of a BAS process in two different industrial wastewater treatments.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Revilla M,Galán B,Viguri JRdoi
10.1016/j.biortech.2016.08.107subject
Has Abstractpub_date
2016-11-01 00:00:00pages
572-583eissn
0960-8524issn
1873-2976pii
S0960-8524(16)31245-7journal_volume
220pub_type
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