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AuthorAlmomani F.
AuthorBohsale R.R.
Available date2022-04-25T08:00:20Z
Publication Date2020
Publication NameBioresource Technology
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.biortech.2020.123059
URIhttp://hdl.handle.net/10576/30327
AbstractThe potential of 3-stages process (anaerobic, anoxic and moving bed biofilm reactor (MBBR)) for organic matter and nutrient removals from secondary WWTP effluents at various hydraulic retention time (HRT) and nitrate recycle ratio (R) was investigated. Percentage removals of total nitrogen (%TNremoval) and phosphorous (%TPremoval) were optimized using response surface methodology (RSM). Under optimized conditions (HRTtotal = 12.8 hr and R = 1.5) significant chemical oxygen demand removal (%CODremoval), %TNremoval and %TPremoval of 95.5%, 96.2%, 94.70% were attained. The MMBR effectively reduced organic matter and nutrient under low HRT and R. %TNremoval was improved by increasing the HRTR2 up to 1.5 h at R 2. Bio-uptake of phosphorus and nitrate is controlled by release of secondary phosphorous. Reactors demonstrated stable biofilm characteristics except for a slight decrease in biofilm thickness due to flow-shear stress. The 3-stages process performed four times higher than suspended growth process and similar to 5-stage Bardenpho-MBBR.
Languageen
PublisherElsevier Ltd
SubjectAttached growth
Nitrification-denitrification
Optimum conditions
Secondary phosphate
Treatment efficiency
TitleOptimizing nutrient removal of moving bed biofilm reactor process using response surface methodology
TypeArticle
Volume Number305
dc.accessType Abstract Only


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