΢늽�̎��t��ؽ��ُUˮ

��r�g��2008-11-19 14:54 ��Դ�� : ��x��2616

1 ΢늽ⷴ��(y��ng)�C��

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

2 ��b�ú͌�򞷽��

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

3 �C��Ч��

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

4 �Y(ji��)Փ

(1)΢늽ⷨ��m�˵�pH��m��(y��ng)�r�g�l��,��ԾC��̎��N�ؽ��x��,��ˮ��ֱ��_��ŷ�.΢늽⼼�g(sh��)�m��̎��pHֵ��3.2��5.5��(y��ng)�r�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��,��\��M�õͣ��,��ԭ��׵�,��r��΢늽��b�ú��,��ڶ��,��Ɍ��F(xi��n)�Ԅӻ��p�p��˄ڄӏ��,��

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