�Ϸ��⼯�F��˾�}��̎��ߝ�Ⱥ��׏Uˮ

��r�g��2008-12-11 14:57 ��Դ�� : ��x��2340

1 �}��חl��

        �׵Ļ��W��Ҫ��X�},��F�}��}�},��u��׻�ʯ��ƽ�ⳣ��(sh��)��󣬶��(w��n)��Ĺ̑B(t��i)��},��Ҫ�о��}�ĳ��,��Ͷ��}�}��}�x��c��ɳ��,��ʽ��£�        5Ca²⁺ + 7OH^- + 3H₂PO₄^- ---- Ca₅(OH)(PO₄)₃ + 6H₂O

        ͬ�r��ڸ��        Ca²⁺ + CO₃^2- ---- CaCO₃

        Ӱ��}��ȵ��һ��Ҫ��Ǿ��w��L��,��˹��в��HҪ��]��pHֵ��ͬ�r��횿��]��ĽY��,��ϔ��菊��,��N��r��Һ��x�r�g��،��}��ʵ�Ӱ푡�

2 Сԇ��Y��

        ȡ1000mL�Ϸ��⼯�F��S��׻��Uˮ�ڟ��,��pH=8.5-9.0,��Ͷ�ӻ��(�ۺ��Ȼ��X)��(��ƽ��ٶ��ݶ�G1=300s^-1��ƽ��ٶ��ݶ�G2=30-50s^-1)��,��o��30min��ȥ��\�x��,��ȡ��Һ500mL��һ��У�Ͷ��ʯ��Һ,��pH=11.0-11.5,��(��ƽ��ٶ��ݶ�G1=300s^-1��ƽ��ٶ��ݶ�G2=10-30s^-1)��o��30min,��ȡ��Һ��кͺ��,��Y��Ҋ��1��

3 ��̌��

        �Ϸ��⼯�F��˾��a�Uˮ��Ҫ��Ա��䡢ϴ�C��̎��׻��ˇ,��Uˮ��=30m³/h,��Ҫ��Ⱦ�Zn²⁺�|��Ȟ�10-50mg/L��}��|��Ȟ�27.3-78.7mg/L,��(j��)�׻��Uˮ��Ⱦ��c,��̎��c��ȥ��PO₄^3-��Zn²⁺,��OӋ��ÉA��,��Ͷ�Ӛ��c(��ƻ��pH=8.5-9.0)�M�й�Һ��x��Ќ�Zn²⁺��ȥ��ʞ�93.8%-97.3%,��

3.1��OӋ��(sh��)

        �OӋ�MˮCOD��300mg/L,��Zn²⁺��50mg/L��}��80mg/L,��pH=4-6,��̎��ˮ��30m3/h��ˮ��_GB8978-1996�U�Ķ��˜�,��pH=6-9,��COD��150mg/L��Zn²⁺��4.0mg/L,��}��1.0mg/L,��

3.2 ��ˇ��

        �׻��Uˮ̎��ˇ��Ҋ�D1��

�׻��Uˮ��ŵ��{��(ji��)��,��{��(ji��)�؃ȼӿ՚┇��(��|,��)��һ��Ҫ�ǳ��\,��pH=8.5-9.0,��Ͷ�Ӿۺ��Ȼ��X��ڶ��Ҫ��}��,��pH=11-11.5,��ˮ��кͺ��ŷŻ��á�

3.3 ��ˇ�O�估��Ҫ��OӋ��(sh��)

��ˇ�O�估��Ҫ��OӋ��(sh��)Ҋ��2,��

3.4 ��\�нY��(Ҋ��3)

�ɱ�3��,��̎��ˮˮ�|��(w��n)��_��GB8978-1996��һ��˜ʡ�

4 �YՓ

        A �}��̎��ߝ�Ⱥ��׏Uˮ,��ɴ_��}�_��,��̎��ˇ��Ρ��\��M�õ�,��,��
        B �P�I��g��ʯ�һ�CaCl₂��ˎ��ÙCе��Ϸ��͸�Чб�ܳ��m��,��Ϗ��,��ؓ�ɺͷ��pHֵ��
        C ��H�\��һ��Ҫ�ǳ��\,��pHֵ��m��10.0��,��@�Ӽȱ��C��ˮ�\�_�ˣ��ֿɜp�ٺ��m(x��)ʯ�ҵ�Ͷ��,��Ҳ��p��a��,��

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