Removal of mercury from aqueous solutions via polymer-enhanced ultrafiltration

Uludag Y., Ozbelge H., Yilmaz L.

JOURNAL OF MEMBRANE SCIENCE, cilt.129, sa.1, ss.93-99, 1997 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 129 Sayı: 1
  • Basım Tarihi: 1997
  • Doi Numarası: 10.1016/s0376-7388(96)00342-0
  • Dergi Adı: JOURNAL OF MEMBRANE SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.93-99
  • Anahtar Kelimeler: polymer metal complexation, mercury separation, ultrafiltration, polyethyleneimine, WATER-SOLUBLE POLYMERS, METAL-IONS, MEMBRANE FILTRATION, HEAVY-METALS, SEPARATION, RETENTION, POLY(ETHYLENEIMINE), COMPLEXES, ELEMENTS, PRECONCENTRATION
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Separation of mercury from aqueous solutions by continuous polymer-enhanced ultrafiltration (PEUF) was investigated. Polyethyleneimine (PEI) was added to the solutions as the complexing agent before circulating the solution in a laboratory-scale continuous ultrafiltration system. Effects of mercury-to-polymer ratio, pressure drop and feed solution circulation rate on retention of mercury and permeate flux were studied. Constant retention values close to unity were obtained until a critical mercury-to-polymer ratio was exceeded. For higher metal loadings, retention values decreased linearly. Permeate flux increased linearly with pressure drop and was not affected by other parameters such as metal loading and feed circulation rate. Therefore, concentration polarization was not a problem for the studied range of variables.