Effect of particle number density on wastewater treatment performance of a fluidized-bed bioreactor

KARAPINAR İ., Kargi F.

ENZYME AND MICROBIAL TECHNOLOGY, cilt.19, sa.2, ss.140-144, 1996 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 2
  • Basım Tarihi: 1996
  • Doi Numarası: 10.1016/0141-0229(95)00192-1
  • Dergi Adı: ENZYME AND MICROBIAL TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.140-144
  • Anahtar Kelimeler: fluidized bed bioreactor, particle number density, biological wastewater treatment, sponge-wire particles, BIOFILM REACTOR, DENITRIFICATION, DEGRADATION, BIOMASS, MODEL
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

A pilot-scale continuous-flow fluidized-bed bioreactor (FBBR) containing sponge particles surrounded by steel wires was operated with different particle number densities ranging from 55-440 particles l(-1) liquid. COD removal performance of the system was investigated. Synthetic wastewater used throughout the studies consisted of diluted molasses, urea, K2HPO4, and MgSO4 resulting in a ratio of COD/N/P = 100/10/1. Zooglea ramigera was used as the dominant microorganism in FBBR. COD and biomass concentration of both the immobilized and suspended growth phase were determined throughout the experiments. Increasing particle number densities resulted in higher rates of COD removal because of high biomass concentrations at high particle number densities.