摘要
用天然麦饭石吸附海水及水溶液中重金属Cu(Ⅱ )、Zn(Ⅱ )、Cd(Ⅱ )。结果表明 ,吸附率随 pH变化曲线呈“S”型 ,在天然水 (pH 7.5～ 8.5)中 ,麦饭石对海水及水溶液中Cu(Ⅱ )、Zn(Ⅱ )、Cd(Ⅱ )均有较高饱和吸附量。对 3种重金属的吸附能力顺序为Cu(Ⅱ ) >Zn(Ⅱ ) >Cd(Ⅱ )。
The MF(Granite) was produced in Fuxin, Liaoning Province. During the experiment, a cerntain amount of MF(Granite) was put into some series solutions containing 10 mg/L Cu(Ⅱ)、Zn(Ⅱ) and Cd(Ⅱ), respectively, but with differen pH ranged from 2 to 9, and the solvents were water and sea water respectively. The results showed that absorption vs pH plot shows “S” shape. In natural water pH(7.5～8.5), the saturated absorption quantity of Cu(Ⅱ)、Zn(Ⅱ)、Cd(Ⅱ) on MF (Granite) was determined that the order of saturated ion exchange amount of metal ion on MF(Granite) is:copper >zinc >cadmium in both sea water and aqueous solution.
出处
《中国水产科学》
CAS
CSCD
2000年第1期87-90,共4页
Journal of Fishery Sciences of China
关键词
麦饭石
吸附
重金属
铜
锌
镉
海水
MF(Granite)
absorption
heavy metal
Cu
Zn
Cd
