Heavy metal cation retention by unconventional sorbents Red muds and fly ashes
Yazarlar (4)
Reşat Apak Istanbul Üniversitesi, Türkiye
Esma Tütem
Istanbul Üniversitesi, Türkiye
Mehmet Hügül
Istanbul Üniversitesi, Türkiye
Prof. Dr. Fehime Jülide HIZAL YÜCESOY Istanbul Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Water Research (Q1)
Dergi ISSN 0043-1354 Dergi Bilgileri (1998)
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 02-1998
Kabul Tarihi – Yayınlanma Tarihi 01-02-1998
Cilt / Sayı / Sayfa 32 / 2 / 430–440 DOI 10.1016/S0043-1354(97)00204-2
Makale Linki https://linkinghub.elsevier.com/retrieve/pii/S0043135497002042
UAK Araştırma Alanları
Analitik Kimya
Özet
Toxic heavy metals, i.e. copper (II), lead (II) and cadmium (II), can be removed from water by metallurgical solid wastes, i.e. bauxite waste red muds and coal fly ashes acting as sorbents. These heavy-metal-loaded solid wastes may then be solidified by adding cement to a durable concrete mass assuring their safe disposal. Thus, toxic metals in water have been removed by sorption on to inexpensive solid waste materials as a preliminary operation of ultimate fixation. Metal uptake (sorption) and release (desorption) have been investigated by thermostatic batch experiments. The distribution ratios of metals between the solid sorbent and aqueous solution have been found as a function of sorbent type, equilibrium aqueous concentration of metal and temperature. The breakthrough volumes of the heavy metal solutions have been measured by dynamic column experiments so as to determine the saturation capacities of the sorbents. The sorption data have been analysed and fitted to linearized adsorption isotherms. These observations are believed to constitute a database for the treatment of one industrial plant's effluent with the solid waste of another, and also to utilize unconventional sorbents, i.e. metallurgical solid wastes, as cost-effective substitutes in place of the classical hydrous-oxide-type sorbents such as alumina, silica and ferric oxides.
Anahtar Kelimeler
Cadmium (II) | Copper (II) | Fly ashes | Lead (II) | Red muds | Sorption
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 288
Scopus 315
Heavy metal cation retention by unconventional sorbents Red muds and fly ashes