Adaptive neuro-fuzzy modelling of anaerobic digestion of primary sedimentation sludge

ÇAKMAKCI M.

BIOPROCESS AND BIOSYSTEMS ENGINEERING, cilt.30, sa.5, ss.349-357, 2007 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Sayı: 5
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1007/s00449-007-0131-2
  • Dergi Adı: BIOPROCESS AND BIOSYSTEMS ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.349-357
  • Anahtar Kelimeler: anaerobic digestion, primary sludge, ANFIS, model, PREDICTION, SIMULATION, IDENTIFICATION, ULTRASOUND, FRACTION, SYSTEMS
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Modelling of anaerobic digestion systems is difficult because their performance is complex and varies significantly with influent characteristics and operational conditions. In this study, Adaptive Neuro-Fuzzy Inference System (ANFIS) were used for modelling of anaerobic digestion system of primary sludge of Kayseri municipal WasteWater Treatment Plant (WWTP). Effluent Volatile Solid (VS) and methane yield were predicted by the ANFIS. Two stage models were performed. In the first stage, effluent VS concentration was predicted using pH, VS concentration, flowrate of pre-thickened sludge and temperature of the influent as input parameters. In the second stage, effluent VS concentration in addition to first stage input parameters were used as input parameters to predict methane yield. The low Root Mean Square Error (RMSE) and high Index of agreement (IA) values were obtained with subtractive clustering method of a first order Sugeno type inference. The model performance was evaluated with statistical parameters. According to statistical evaluations, the models satisfactorily predict effluent VS concentration and methane yield.