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��ϣ��I(y��)��CaCO3,��H2SO4,��Ni(NO3)2•6H2O��Cu(NO3)2•3H2O,��Zn(NO3)2•6H2O��ú��,��ĳ�l(f��)늏S�ṩ��

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1.3��

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2.1��ͬ��ú�Ҍ�Ni2+��Ч��Ӱ�

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2.2��UˮpHֵ��Ni2+��Ч��Ӱ�

�UˮpHֵӰ��늺ɼ��x��ڏUˮ�еĴ��ʽ,��M��^�̮a��Ӱ�,��ڏͺϸ��Է�ú�ҵ�Ͷ��1g��Ni2+�ĳ�ʼ�|��20mg/L,��ض�35��ėl��,��о��ˏUˮpHֵ��Ni2+ȥ��ʵ�Ӱ�,��Y��D2��ʾ��

�ɈD2��֪��S��r�g��L,��ͬ�UˮpHֵ�l��µ�Ni2+ȥ��ʳʬF(xi��n)��ͬ��׃��څ��,��UˮpHֵ�^�͕r��Ni2+��ȥ��^��,��@��UˮpHֵ�^�͕r,��Uˮ��H+�ĝ��^�ߣ�H+��ռ��ͺϸ��Է�ú�ҵĲ��λ�c,��cNi2+�γɸ��,��Ni2+��ȥ��Ч��ѡ��S��UˮpHֵ��,��Uˮ��H+�ĝ�Ƚ��,��λ�c�cNi2+�l(f��)��ã�ʹ��Ni2+��ȥ��@��,��UˮpHֵ��6�r,��Ni2+��ȥ��Ч��ã�Ni2+��ȥ��ʿ��_��97.68%,��

2.3,��ضȌ�Ni2+��Ч��Ӱ�

�ڏͺϸ��Է�ú�ҵ�Ͷ��1g��Ni2+�ĳ�ʼ�|��20mg/L,��UˮpHֵ6�ėl��,��о��˷��ضȌ�Ni2+ȥ��ʵ�Ӱ푣��Y��D3��ʾ

�ɈD3��֪��S��r�g��L,��ͬ��ض��µ�Ni2+ȥ��ʵ�׃��څ�ݻ��,��r�g��120min�r��Ni2+��ȥ��څ�ڷ�(w��n)��,��ͬ�r,��S��ضȵ��ߣ�Ni2+��ȥ��ʳʬF(xi��n)��څ��,��һ��,��ض��܉�ӿ�Uˮ��Ni2+�ĔUɢ��ʣ��һ��棬��ض��Ҳ�܉��cNi2+��H��,��Ķ��Ni2+��ȥ��,��

2.4��Cu2+,��Zn2+�Ĵ��ڌ�Ni2+��Ч��Ӱ�

�像Uˮ�г��˺��Ni2+��,��߀��x�ӡ��о��Cu2+��Zn2+�Ĵ��ڌ�Ni2+ȥ��ʵ�Ӱ�,��Y��D4��ʾ,��У��ͺϸ��Է�ú�ҵ�Ͷ��1g,��Cu2+,��Zn2+��Ni2+�ĳ�ʼ�|��Ⱦ��20mg/L,��UˮpHֵ��6��ضȞ�35��,��

�ɈD4��֪��Cu2+��Zn2+�Ĵ��ڌ�Ni2+��ȥ��Ч��Ӱ��@��,��ͺϸ��Է�ú�Ҍ�Cu2+��ʺܿ죬��M�е�10min�r,��Cu2+��ȥ��ʻ��_��ƽ��,��ͺϸ��Է�ú�Ҍ�Zn2+��Ni2+��^С��Zn2+��Ni2+��ƽ��r�g��һ��,��

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