Ortiz N, Pires M A, Bressiani J C
Nuclear Energy Research Institute-IPEN, Sao Paulo, Brazil.
Waste Manag. 2001;21(7):631-5. doi: 10.1016/s0956-053x(00)00123-9.
Magnetite, the main component of converter slag in the steel industry, can be used for the adsorption of Ni(II) from aqueous solutions, over a range of conditions: initial metal concentration (10-100 mg 1(-1)), stirring times (2-240 min), adsorbent dosage (1 g for 0.5 1 of metal solution) and temperatures (20, 30 and 38 degrees C). The adsorption rate increased with initial concentration but decreased with increase in temperature, due to competition of the dissolution process. The adsorption process obeyed the Freundlich isotherm model.
磁铁矿是钢铁工业中转炉渣的主要成分，在一系列条件下可用于从水溶液中吸附镍（II）：初始金属浓度（10 - 100 mg L⁻¹）、搅拌时间（2 - 240分钟）、吸附剂用量（对于0.5 L金属溶液为1 g）和温度（20、30和38摄氏度）。由于溶解过程的竞争，吸附速率随初始浓度的增加而增加，但随温度的升高而降低。吸附过程符合弗伦德里希等温线模型。
