Phosphorus removal by fly ash

UĞURLU A., Salman B.

ENVIRONMENT INTERNATIONAL, cilt.24, sa.8, ss.911-918, 1998 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24 Sayı: 8
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1016/s0160-4120(98)00079-8
  • Dergi Adı: ENVIRONMENT INTERNATIONAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.911-918
  • Gazi Üniversitesi Adresli: Hayır

Özet

The aim of this work was to investigate the possible use of fly ash generated from thermic power stations in the removal of phosphorus contained in aqueous solutions. A series of batch tests were conducted and the influence of temperature, phosphate concentration, and fly ash dosage on phosphate removal were investigated. The effect of adsorption dosage was not significant at any temperature applied. Phosphate removal in excess of 99% was obtained in these studies. Maximum removals were achieved at 40 degrees C. The tests were also carried out on a continuous basis in an adsorption column. It was found that fly ash is an efficient adsorbent for phosphate removal. This was expected due to the high concentration of calcite present in the fly ash (338 g/kg). The phosphate removal decreased to 80.4% at the end of 72 h. (C) 1998 Elsevier Science Ltd.