΢늽�̎��t,��ؽ��ُUˮ

��r(sh��)�g��2008-11-19 14:54 ��Դ�� : ��x��2609

1 ΢늽ⷴ��(y��ng)�C(j��)��

΢늽⼼�g(sh��)�ǲ��ù��I(y��)�T�Fм��ԭ��,��΢늳ظ��gԭ��늻��W(xu��),��W(xu��)��(y��ng)��(y��ng)(��-߀ԭ��ÓQ,��,��^�V��T��ԭ��)�C��,��ȥ��ˮ��ؽ��ٵ�һ�T��g(sh��),��(g��)��(y��ng)��н��|(zh��)�֞��ӣ��-߀ԭ��(y��ng)�ӡ��Ӻ��^�V��.΢Ԫ��g늳��ڽ��ٱ��늻��W(xu��)��,��ڽ��ٱ��F(xi��n)�S��΢С��늘O,��Ķ��γ�΢늳�.΢늳ط��(y��ng)��һ��(g��)��·ԭ늳ذl(f��)��^�̣��ӻ�·�̽�,��(du��)��,��Ժ��΢늳ص�ꎘO߀ԭ��(y��ng)��.�T�F��̼�|(zh��)��?j��n)?sh��)��2.0%��6.67%��й�,��i,��s�|(zh��)��T�F��(sh��)�H��F,��̼,��ĺϽ�.΢늽⼼�g(sh��)��Ҫ��T�Fм��滯�W(xu��)�ɷֲ��򼰽��ٽM��Ԙ�(g��u)�ɵ�΢늳�.��(d��ng)�T�Fм��ĭ��늽��|(zh��)��Һ(��Cr⁶⁺��Cu²⁺,��Ni²⁺,��Zn²⁺�Uˮ)�Еr(sh��)��ڲ�ͬ��֮�g��λ��,��T�F��γ��˟o��(sh��)��F��ꖘO,��̼��F��s�|(zh��)��ꎘO��΢С��g늳�.��늽��|(zh��)��ꎘOȥ�O��(��Cr₂O₇^2-��Һ),��(y��ng)��(hu��)��ӿ�.��T�Fм��ɶ��,��e��ʹ��(y��ng)Ѹ��.��-߀ԭ��(y��ng)��΢늽⼼�g(sh��)�ĺ��ġ�

2 ��(sh��)�(y��n)�b�ú͌�(sh��)�(y��n)��

�Uˮ̎��ˇ��D2,��ƌ�(sh��)�(y��n)��ˮ��100L,��ñô��뷴��(y��ng)��ˮ��,��ÿ��30minȡˮ�ӷ��,��(y��ng)�l��Ҝ�.��(y��ng)��\(y��n)��һ�Εr(sh��)�g��̎��½�,��,��,��ˮ�͉��s�՚�(li��n)�ϛ_ϴ��_ϴˮ��,��Fм�õ��,��؏�(f��)��(sh��)�(y��n).��(sh��)�(y��n)��x��DR/200�ֹ��Ӌ(j��)��PHS-2C��Ӌ(j��),��DT-100��ƽ,��(sh��)�(y��n)��Æ��،�(sh��)�(y��n)��һ��ص�Ӱ�څ��.�ڱ�ϵ�y(t��ng)ˮ�ӵ�̎��^��,��pHֵ,��ȣ��(y��ng)�r(sh��)�g��Ӱ�̎��Ч��Ҫ��,��

3 �C��Ч��

�M(j��n)ˮpH=4,��p(Cr⁶⁺)=100mg/L��p(Cu²⁺)=30mg/L,��p(Zn²⁺)=100mg/L,��p(Ni²⁺)=30mg/l��(y��ng)�r(sh��)�gt=5min�ضȣ��Ҝ�,��(sh��)�(y��n)��(sh��)��(j��)Ҋ��1��

4 �Y(ji��)Փ

(1)΢늽ⷨ��m�˵�pH��m��(d��ng)��(y��ng)�r(sh��)�g�l��,��ԾC��̎��N�ؽ��x�ӣ��ˮ��ֱ��_(d��)��(bi��o)�ŷ�.΢늽⼼�g(sh��)�m��̎��pHֵ��3.2��5.5,��(y��ng)�r(sh��)�g5min��,��Cu²⁺�|(zh��)��С��30mg/L��Ni�|(zh��)��С��30mg/L,��Cr⁶⁺�|(zh��)��С��100mg/L,��Zn²⁺�|(zh��)��С��100mg/L�C��Ե��ؽ��ُUˮ.

(2)΢늽ⷨ��Ͷ�ӻ��W(xu��)ˎ��\(y��n)��M(f��i)�õ�,��,��ԭ��׵ã��r(ji��)��,��΢늽��b�ú��,��ڶ��ͣ��Ɍ�(sh��)�F(xi��n)�Ԅ�(d��ng)��,��p�p��˄ڄ�(d��ng)��(qi��ng)�ȡ�

����D(zhu��n)�d��ǳ��ڂ��f��Ϣ֮Ŀ��,��Ё�Դ��(bi��o)ע�e(cu��)�`��ַ��ĺϷ��(qu��n)��,��Ո��߳֙�(qu��n)��C��c��W(w��ng)(li��n)ϵ��҂��r(sh��)��,��h��,��x�x,��