��늏S��ˮ ��}ˮpH�y��

��r�g��2008-03-28 09:10 ��Դ��˹��˹�Ԅӻ��O(sh��)��޹�˾ ��: �� Ԭ�� x��6538

        ժҪ����늏S��Ҫʹ�ó��}�b��a(ch��n)��ˮ��_��偠t�\�е�Ҫ��,��ˮ/��·��pH�ȸ�헅��(sh��)�Ĝy��Ч��Ƴ��}ˮ��ˮ�|(zh��)��Ҏ(gu��)pH늘O�ڜy��ˮ��кܴ��,��Ŀǰ��еĜy��ǳ��ˮpH�ͺ�늘O��늌��ʲ,��@��а��˹��˹��˾��Purisys CPF201��ˮpH�ͺ�늘O��һվʽ��늌��ʲ��Q��Ѹ��,��ʴ_,��(w��n)��pH�y��޶ȵĝM��a(ch��n)�^�̵İ�ȫ�ɿ��\�С�

        һ,��늏Sˮ/��ϵ�y(t��ng)��ˮ�|(zh��)��

        �ڻ�늏S��˝M��偠t�\�Зl��,��oˮƷ�|(zh��)Ҫ�M��ض�Ҫ�󣬼��ȥ��γɽY(ji��)ʯ�͠t��ĉA��|(zh��),��ԭ��偠tˮ��ڽY(ji��)��偠tˮ��ڱ��ض��,��ˮ��ڵęCе��,��⣬�oˮ��߀��S��К��w(��CO2,��O2)��,��t��ˮ��ں͹ܵ��ĸ��g��ˮ��߀��ܺ��и�Ҹ��,��˙z�y�@Щ��(sh��),��Ҫ��ˮ/��Ĺ�·��c��b��x��y��ܽ��늌��ʺ�pHֵ��,��Č��Ҫ��B��늏S��ˮ/��}ˮ��pH�y��,��

        늏S�ĳ��}��ˇ��D1��ʾ

עጣ�

ԭˮ(Raw water)

ꖴ�(Cation filter)

Ó̼��(CO2 cascader)

ꎴ�(Anion exchanger)

�촲(Gravel bed filter)

��A��(Hydrochloric acid tank)

�A�A��(Caustic soda tank)

ȥ��(To degasification plant)

        ��Ҏ(gu��)pH늘O

        ��늏S��ˮ��pHֵ�y��һֱ��_��˂�,��ķ��B͸,��x�ӽ��Q��}��偠t�oˮ��tˮ,��ˮ�ٵ��(n��i)��ˮ��Y(ji��)ˮ�ȟ��ϵ�y(t��ng)�ĸ��h(hu��n)��(ji��),�׺�ȫ�Ǽ�ˮ�ͳ��ˮ�|(zh��),��ó�Ҏ(gu��)�y��Һ�õ�pH늘Oȥ�yԇ�@Щˮ�ӣ��Y(ji��)��y��˝M��D�D�D푑�(y��ng)��,��Ư��,��,��؏��Բ��늘Oʹ�É��s�̣��Ҫ��ԭ��Ҫ��ɷ��,��

        ��1�� Ҏ(gu��)pH늘O��O(sh��)Ӌ�Á�y��һ��x�ӝ�ȵ�ˮ�ӵ�pHֵ��,��х��늘O��KCl/AgCl��뵽��ˮ�r��څ��늘O�cˮ�ӵĝ�Ȳ�ܴ�,��KCl�_ʼ�ą��늘O�B͸��ˮ��,��ˮ��/��늘O�g��Һ��λ��diffusion potential��ӣ�pH�y��ֵ��ʴ_,��

        ��2��ˮ�ǘO�õ��܄�,��p�׵��ܽ�h(hu��n)��е��Ⱦ���ˮ�ľ��_�Բ�,��΢��Ⱦ�Ϳ��ܘO��ĸ�׃��ˮ��pHֵ,��磬��ˮ��Ѹ�ٵďĿ՚��CO2,��ʹpH�y��ֵƫ��,��

        ��ASTM�f(xi��)��2001��ͨ�^�Ę˜�D5494-93��Standard Test Methods for pH Measurement of Waterof Low Conductivity ��У��Ҏ(gu��)��˳��ˮpH�y��һ��b��]�M��Ա��CO2��Ⱦ,��ͬ�r��ˮ�Г]�l(f��)��|(zh��)��ɢ,�� H��Ї��늏S��У�ˮ��pH��x��y��׺��ڟ��г��_�M�е�,��ˮ�ӕ��CO2,��pHֵ��ͣ��½��Ӱ��˜y��ķ�(w��n)��Ժ͜ʴ_��,��,��ˮpH�ھ��y��Խ��Խ�ܵ��gӭ��

        ��ăɂ��¹�(ji��)��,��ؽ�B��ǰ��(y��ng)�ÏV��ăɷN��늏S��ˮpH�ھ��y��,��

        ��ˮpH�ͺ�늘O

        ��ؽ�B��˹��˹��Endress��Hauser��˾��Purisys CPF201��ˮpH�ͺ�늘O,��ԓ늘O�ǻ��ASTM�˜��O(sh��)Ӌ��ھ��ˮpH�y��,��y��Ѹ�ٜʴ_��늘O��b֧�ܣ��^��D2��ʾ,��

        ԓ늘O�ı��ચ��O(sh��)Ӌʹ��ڻ�늏S��ˮpH�y��I(l��ng)����,��

        3.1 316��P��֧ͨ��

        ԓ늘O�Ԏ�316��P��֧ͨ�ܣ�ԓ֧�ܵ�ʹ�ý�Q��Ć��},��

        ��1�� pH�y��`��,��(w��n)��pH�x��(sh��)��

        ��2�� Ч��늌��ˮ�е��o늺�,��

        ��3�� O(sh��)Ӌ,��ֹ�e��w�,��Ⱦ�

        3.2 pH�ͺ�늘O

        3.2.1 �y��늘O

        ��1�� y��늘O��Ĥ��Glass membrane��迹��,��`��Ը�,��

        ��2�� ض��a��ض�׃��pH�y��Ӱ�,��

        3.2.2 ��늘O

        ��1�� pǻ��ϵ�y(t��ng),��늘O��(w��n)��Ժã��ɿ��Ը�,��

        ��2�� 늘OҺ��̎��PTFE,��Һ��λ��diffusion potential��(w��n)��

        3.3 늘O/��|�ӿ�

        ��|�c늘O�B��̎��Ô�(sh��)�ָБ�(y��ng)ʽ�p��̖��ݔ,��ȫ��ˮ�O(sh��)Ӌ��˳��,��g��}��B�ӷ��㡣��ԭ��D3��ʾ

        ��T��(y��u)��ʹ��Purisys CPF201�V��(y��ng)��ڻ�늏S��}ˮ��pH�y��,��Լ��ˎ�ИI(y��)��ע��ˮ��WFI:Water for Injection��,��

        �ġ�늌��ʲ

        ��˳��ˮpH�ͺ�늘O��,��߀��x�ӽ��Q��ǰ��y��偠tˮ��늌��,��ͨ�^ǰ��늌��ʲ��Ӌ��ˮ��pHֵ��
��˹��˹��Endress��Hauser��˾�ṩһվʽ��Q��One-Stop-Shopping��,��y��ϵ�y(t��ng)�Ƀɂ�CLS15��ˮ늌��ʂ��,��pͨ��Mycom CLM 153׃��Լ�һ��x�ӽ��Q��M��,����D4��ʾ��

        4.1 ��Փ��A(ch��)

        ��1�� Na+ and H+�ɷN�x�ӵĻ��ԣ�mobility��ͬ,��HCl��늌��NaCl�}��,��x�ӽ��Q��늌��KCE�ǽ��Q��ǰ��늌��Kdirect��

        ��2�� Kdirect��x�ӽ��Q��ǰ��NaOH��NaCl��=1/3KCE��M��,��Խ��Q��ǰNaOH�ĝ��CNaOH�c��Kdirect-1/3KCE��,��

        ��3�� ں��NaCl�s�|(zh��)��NaOH�A�Գ��ˮ��Һ��x�ӽ��Q��ǰ��pH��Ҫ��NaOH�ĝ��CNaOH�Q��,��

        ��ϻ��W��Փ��A(ch��),��(j��)VGB-R 450L�˜ʲ��㷨��ͨ�^늌��ʲ�y��ˮ��pH,��Ӌ��^��ʾ,��

4.2 �y��ϵ�y(t��ng)��ԭ��

        �ɂ�늌��ʂ��CLS15�y��x�ӽ��Q��ǰ��늌��ʺ͜ضȣ��͵�׃��,��Mycom CLM 153׃��ͨ�^��ˮ�ض��a��,��у�늌��D(zhu��n)��25��r��늌��Kdirect��KCE,��S��ͨ�^ʽ��3��Q��ˮ��pHֵ��Ñ�ֻ��Ҫ��׃��x��“pH�y��ģʽ”��,��o��Ԕ��,��

        �cpH�ͺ�늘O��ȣ�ԓ�y��ϵ�y(t��ng)�ľS�o��С,��,��ڻ�늏S��в��ّ�(y��ng)�Ì��D5��ĳ��늏S�ĳ��}ˮpH�y��ϵ�y(t��ng)��D,��

        4.3 ��(y��ng)�ù��r

        ʹ��늌��ʲ�y��pH��Ҫ�M��һ��ǰ��l��,��ȣ��y��}ˮ��ƫ�A�Ե�,��,��}ˮ�е��s�|(zh��)��Ҫ��NaCl�Ҳ��}��< 0.5 mg/l��,��pH<8�t�s�|(zh��)��ȑ�(y��ng)С�ډA��܄��ĝ��,��

        ��˶��˹��˹��Endress��Hauser��˾�⣬��ʿ��SWAN��˾Ҳ�ṩ늌��ʲpH�y��x��,��ԓ�y��ϵ�y(t��ng)��Ҫ��늌��ʂ��,��“FAMDeltacon pH”׃��“CATCON+”��֧ͨ��,��x�ӽ��Q��ȽM��,��

        �Y(ji��)��Z

        ��M��Ĝy��x��Ƅ��˻�늏S��a(ch��n)�^�̵ă�(y��u)��ƣ��a(ch��n)�^�̵İ�ȫ�ɿ��\��,��δ��}ˮpH�y��g(sh��)��,��Ҳ��څ��ҡ�

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