ȥ�x��ˮ�O(sh��)��c(di��n)�c��ˇ��

��r�g��2011-07-27 10:15 ��Դ�� : ��x��1700

�x�ӽ��Q��֬ϵ�y(t��ng)��

�x�ӽ��Qϵ�y(t��ng)��ͨ�^�,��x�ӽ��Q��֬��ˮ�еĸ��N�,��x��M(j��n)��ÓQ��һ�N��y(t��ng)ˮ̎��ˇ��,��x�ӽ��Q��֬��ͬ��M(j��n)�д��ɽM��x�ӽ��Qꖴ�ϵ�y(t��ng),��x�ӽ��Qꎴ�ϵ�y(t��ng)��x�ӽ��Q�촲ϵ�y(t��ng)��촲ϵ�y(t��ng)��ͨ��ڷ��B͸��ˮ̎��ˇ֮��Á��ȡ��ˮ,��߼�ˮ�ĽK�˹�ˇ��Ŀǰ�Á��Ƃ䳬��ˮ��߼�ˮ��ֶ�֮һ,��ˮ늌�(d��o)�ʿɵ��1uS/cm��,��ˮ��_(d��)��1MΩ.cm��ϣ��(j��)��ͬ��ˮ�|(zh��)��ʹ��Ҫ��,��ˮ��ʿɿ��1~18MΩ.cm֮�g,��V��(y��ng)��ӡ��ˮ,��,��僳��ˮ��偠t�a(b��)�oˮ��t(y��)ˎ�ó��ˮ�ȹ��I(y��)��ˮ,��߼�ˮ��Ƃ��,��

ȥ�x��ˮ�O(sh��)��ܣ�

ϵ�y(t��ng)�Ԅ�ȫ�Ԅ��\(y��n)�У��S�o(h��)��,��

�a(ch��n)ˮˮ�|(zh��)��(w��n)��,��֬��L��

�O(sh��)��Ͷ��^��,��ԃr�ȸ�,��

ȥ�x��ˮ�O(sh��)��Ҫ��;��

��yƷ�ИI(y��)��o(h��)�wƷ��a(ch��n)�ü�ˮ��ϴ�l(f��)ˮ��a(ch��n)�ü�ˮ,��Ⱦ�l(f��)��a(ch��n)�ü�ˮ,��a(ch��n)�ü�ˮ ��ϴ��Һ��a(ch��n)��ˮ,��

��ӹ��I(y��)��X��ϴ,��ӹ܇�Ϳ��Һ��@��,��ϴ,��,��ϴĤ,��i��ϴ��Һ��ϴ��Һ��w�ܺͼ��·�Ĺ�Ƭ��ϴ��ˮ,��ˮ,��

늳��ИI(y��)��늳��a(ch��n)ȥ�x��ˮ�O(sh��)�䡢�늳��a(ch��n)ȥ�x��ˮ�O(sh��)��,��̫��늳��a(ch��n)ȥ�x��ˮ�O(sh��)��,��

��ӄ��ȥ�x��ˮ�O(sh��)�䣻��Ĥ��ȥ�x��ˮ�O(sh��)��,��Ʒ��ϴȥ�x��ˮ�O(sh��)��,��ϴȥ�x��ˮ�O(sh��)�䣻

��ӡȾ��I(y��)��ӡȾ��ȥ�x��ˮ�O(sh��)�䡢��ȥ�x��ˮ�O(sh��)��,��Ĥȥ�x��ˮ�O(sh��)��,��

��ϴ��ˮ�O(sh��)�䣻

Ϳ�b�ИI(y��)��Ϳ��ȥ�x��ˮ�O(sh��)��,��ϴȥ�x��ˮ�O(sh��)��,��Ӿ��ϴȥ�x��ˮ�O(sh��)�䣻

�x�ӽ��Q��֬ϵ�y(t��ng)��ԭ��

��x�ӽ��Q��,��԰�ˮ�г��x�ӑB(t��i)��,��x��ȥ��Ȼ��c(NaCl)��ˮ�Пo�C(j��)�}�,��ˮ�|(zh��)��}�Ļ��(y��ng)��з��ʽ��_(d��)��

ȥ�x��ˮ�O(sh��)�䣺

1,��x�ӽ��Q��֬��R—H+Na+ R—Na+H+��

2,��x�ӽ��Q��֬��R—OH+Cl- R—Cl+OH-,��

ꖡ��x�ӽ��Q��֬��ķ��(y��ng)ʽ��Ɍ��ɣ�

RH+ROH+NaCl——RNa+RCL+H2O,��

�ɴ˿ɿ��,��ˮ�е�NaCl�ѷքe��֬�ϵ�H+��OH-��ȡ��(y��ng)��ֻ��H2O,��_(d��)��ȥ��ˮ��}��,��

ȥ�x��ˮ�O(sh��)��Ҫ��ˇ��

ȥ�x��ˮ�Ĺ�ˇ��¿ɷ֞��ķN��

��һ�N��x�ӽ��Q��֬ȡ�õ�ȥ�x��ˮ��һ��ͨ�^֮��,��ˮ늌�(d��o)�ʿɽ��10us/cm��,��ٽ�(j��ng)�^�촲�Ϳ��_(d��)��1us/cm��ˡ��@�N��ˮ�ɱ��O��,��w��s�|(zh��)̫��,��_(d��)��Ҫ��Ŀǰ��^�ٲ��,��

�ڶ��N��A(y��)̎��(��ɰ̼�^�V��+��^�V��)+��B͸+�촲��ˇ,��

�@�N��Ŀǰ��ģ��?y��n)鷴�B͸Ͷ�Y�ɱ�Ҳ��,��ȥ��90%��ϵ�ˮ��x��,��ʣ�µ��x��ͨ�^�촲��Q��ȥ��@�ӿ�ʹ��ˮ늌�(d��o)�ʣ�5-10us/cm��,��@��Ŀǰ��еķ��,��

��N��Ãɼ��B͸��ʽ��

��£��ԁ�ˮ→��|(zh��)�^�V��→��̿�^�V��→ܛ��ˮ��→��gˮ��→�͉��→��^�V��→һ��B͸→PH�{(di��o)��(ji��)→��→��B͸(��B͸Ĥ��控��늺�)→��ˮ��→��ˮ��→΢��^�V��→��ˮ�c(di��n)��

��ķN��ǰ̎��c�ڶ��N��һ��ʹ�÷��B͸,��ֻ�Ǻ��ʹ�õĻ촲��EDI�B�m(x��)��}Ĥ�K��,��@�ӾͲ��A��֬,��@�͏ص�ʹ��^�̟o��Ⱦ��,��(j��ng)�^̎��ˮ�|(zh��)��_(d��)��15M��,��@�@�N��ǰ��Ͷ�Y��^�࣬�\(y��n)�гɱ��,��(j��)��˾��r��m��(d��ng)?sh��)�Ͷ�Y��ò��^��,��

��£�ԭˮ→��|(zh��)�^�V��→��̿�^�V��→ܛ��ˮ��→��gˮ��→�͉��→PHֵ�{(di��o)��(ji��)ϵ�y(t��ng)→��Ч��→��^�V��→��Ч��B͸→��gˮ��→EDIˮ��→EDIϵ�y(t��ng)→΢��^�V��→��ˮ�c(di��n),��

��x�ӽ��Q��֬ϵ�y(t��ng)��A(y��)̎��

��ˮ��֬�M(j��n)�Л_ϴ��Ȼ��4~5%��HCl��NaOH�ڽ��Q��ν��2~4С�r,��A֮�g�ô��ˮ��ϴ��ˮ�ӽ��,��؏�(f��)2~3�Σ�ÿ��A��֬�w�e��2��,��һ��̎�푪(y��ng)��4~5%��HCl��Һ�M(j��n)��,��űM��Һ��ˮ��ϴ��Լ��ɴ��,��

ȥ�x��ˮ�O(sh��)��Ĺ�ˇ��c(di��n)��(y��ng)��I(l��ng)��

�x�ӽ��Q�O(sh��)��ǂ��y(t��ng)��ȥ�x��ˮ�O(sh��)��,��Įa(ch��n)ˮˮ�|(zh��)��(w��n)��r��^��,��늏S偠t�a(b��)�oˮ��ǲ��ꖴ�+ꎴ�+�촲̎��ˇ,��

��S��B͸,��EDI�ȹ�ˇ�İl(f��)չ,��x�ӽ��Q�O(sh��)��(f��)�s��׌�(sh��)�F(xi��n)�Ԅӻ�,��M(f��i)��A,��\(y��n)�гɱ��ߵ�ȱ�c(di��n)��ͻ��Ŀǰ��đ�(y��ng)��ڷ��B͸��̎��,��

С�͵��x�ӽ��Q�O(sh��)�䳣��ЙC(j��)��Q��,��^��֬�\(y��n)��r��x�ӽ��Q��֌��Ƿ��,��x��Ƿ�“�ж�”��,��֬�p��r�ȡ��͵��x�ӽ��Q�O(sh��)��t��̼䓃�(n��i)�r�h(hu��n)��֬��r�z,��g�A(y��)��ҕ�b��,��Ա��x��r�ھ��^�y��Һˮλ��r��

1,��I(y��)��ˮ̎��ˇ,��Ŀǰ��I(y��)�ó��ˮ��Ƃ��ϑ�(y��ng)��һ�N��ˇ֮һ,��

2��ʳƷ��I(y��)�x�ӽ��Q��֬��,��ζ��,��Ƶľ��ơ��Ʒ�ȹ��I(y��)�b��,��

3,��ˎ��I(y��)�x�ӽ��Q��֬��l(f��)չ��һ��Ŀ��ؼ��ԭ�п��ص��|(zh��)��Ҫ��á��ù�ص��_�l(f��)�ɹ��ͻ��,��

4,��ϳɻ��W(xu��)��ʯ�ͻ��W(xu��)��I(y��)��ЙC(j��)�ϳ��г��͉A��߻��M(j��n)��ˮ��,��Q,��ˮ�ϵȷ��(y��ng)��

5,��像UҺ�еĽ��x��,��Ӱ��Ƭ�UҺ��|(zh��)�ȡ�

6,��ұ��x�ӽ��Q��֬��ԏ�ؚ♵V��x,��s��ἃ♼��ȡϡ��Ԫ�غ��F��,��

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