Effects of stirring speed on coupled transport of nitrate ions through liquid membranes

DEMİRCİOĞLU N., TOPÇU N., LEVENT M., KOBYA M., KOCADAĞİSTAN E.

BIOPROCESS ENGINEERING, cilt.22, sa.4, ss.309-314, 2000 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 22 Sayı: 4
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1007/s004490050737
  • Dergi Adı: BIOPROCESS ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.309-314
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this study, the removal of nitrate (NO,) ions from aqueous streams with liquid membrane technique has been investigated. Among the other parameters (temperature, pH, acceptor phase type and medium concentration), the stirring speed was chosen as process parameter. From the experimental results, it has been determined that the reaction was diffusion controlled. The transport efficiency of nitrate ions increased with increasing stirring speed. The membrane entrance and exit rate constants (k(1d), k(2m) and k(2a) respectively) were linearly dependent on the stirring speed ratios of 100 to 250 rpm.