Long‐term desorption kinetics of Cu2+from biosorbent in water and seawater

Autor:	Qiming Yu, Weidong Ma, Pairat Kaewsarn
Rok vydání:	2001
Předmět:	inorganic chemicals Chemistry Health Toxicology and Mutagenesis chemistry.chemical_element Biomass Thermal treatment Pollution Copper Desorption kinetics Adsorption Desorption Environmental chemistry Environmental Chemistry Sewage treatment Seawater
Zdroj:	Toxicological & Environmental Chemistry. 79:117-125
ISSN:	1029-0486 0277-2248
DOI:	10.1080/02772240109358981
Popis:	A long‐term study of the desorption kinetics of Cu2+from biosorbent materials in water and seawater environments was carried out. The biosorbents were un‐treated and pre‐treated biomass of marine alga Durvillaea potatorum.The pre‐treatment of the biomass was carried out with calcium chloride (CaCl2) solution followed by thermal treatment. The biosorbents were loaded with Cu2+in batch adsorption experiments and the desorption kinetics were measured in water and seawater in static batch desorption experiments for a period over 10 months. The physical and structure characteristics of the biosorbents were also examined under a microscope. The un‐treated biosorbent structure completely broke down in 2 and 1 months in water and seawater environments, respectively. The pre‐treatment procedure applied improved the biosorbent stability and its long term desorption rate was extremely low.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0a8f0d4eb10cafc25876a28ee65b10e4 https://doi.org/10.1080/02772240109358981 Zobrazit plný text záznamu