��ᷨ⁰׏Uˮ̎��OӋע��

��r�g��2009-08-11 14:11 ��Դ�� : ��x��1570

��

Ŀǰ,��(n��i)��⁰��a(ch��n)��F�V��Ҫԭ��,��Â��y(t��ng)��ᷨ��a(ch��n)��ˇ��ԓ��ˇ��L,��a(ch��n)�g��M��,��a(ch��n)�^��“��U”�ŷ��^�࣬��ֻҪ��ȡ��Ч�ĭh(hu��n)��ʩ,��_��ŷŘ˜�,��Ҫ��F�V��ԭ�ϣ��ᷨ��ˇ��a(ch��n)��⁰׏Uˮ̎��g�Լ��OӋ�Б�ע��Ć��},��

1 ��a(ch��n)�Uˮ��ŷ��

��ᷨ⁰��a(ch��n)�Uˮ��Ҫ��Ե�ƺ�_ϴ,��O��_ϴ��⡢呟�β��_ϴˮ,��Uˮ�ŷ��ˮ�|(zh��)�c��F�V�е��,��ˇ�^��ϴˮ��ôΔ�(sh��)��ˮƽ��һ��Pϵ,��һ��,��a(ch��n)Ʒ⁰׷ۏUˮ�ŷ��s��80��250t/a,��pH�s��1��5��Һ��΢��FeSO4·7H2O,��ˮ��ˮ�|(zh��)׃��^��,��⁰׏Uˮ̎��վ��OӋˮ�|(zh��)��ˮ��ԑ��(j��)��ˇ��ƽ��Ӌ��,��ٿ��]��Ӱ��؁��K�_��Uˮ��OӋֵ,��
��
��(n��i)��⁰׷ۏS�Uˮ�ŷ��y(t��ng)ӋҊ��1��

��a(ch��n)Ҏ(gu��)ģ		��ΏUˮ�ŷ��y(t��ng)Ӌ/��m³.h^-1)
��a(ch��n)Ҏ(gu��)ģ		��,��	�^�V,��Y��	��s��ˮ��	ˮϴ,��Ưϴ	�џ�	�U��s
��	4×10⁴t/a	102.95	6.7	23	64.8	150	20.78
��	1.5×10⁴t/a	51	5	17	40.1	105	10.3
��	1.5×10⁴t/a	37	69.5	12	67	24	18

2 ͨ��õďUˮ̎��ˇ
��
⁰׹��I(y��)�Uˮ��̎��,��ͨ��кͷ��һ��ֳ��M�ɲ��֣��к�ˎ��Ƃ��Ͷ��,��кͷ��,��̎�õȡ��ˇ��Ҋ�D1,��

2.1 �к�ˎ��Ƃ估Ͷ��
��
��Ca(OH)2��к��κΝ�ȵ��ԏUˮ,��䱾�팦�Uˮ�е��s�|(zh��)��ã�⁰��ԏUˮ̎��һ��Ca(OH)2��к�ˎ��,��Ͷ�ӷ��ɲ��ø�Ͷ��Ͷ,��Ͷ��Ѹ�١��ص�,��Ͷ��С,��ʶ��ܵ��V��á�
��
Ca(OH)2��Һ�Ƃ�ɲ��ʯ��ͨ�^��Ƶ�,��ֱ��÷�ĩCa(OH)2�Ƶ�,��ʯ��Oʯ��O��,��ʯ��A��ݷe��ʯ��\ݔ��,��Ķ��¹̶��Y�a(ch��n)Ͷ�Y��ӡ��ʯ��^С��ĩCa(OH)2�\��^С�Ĺ��,��hֱ�Ӳ��÷�ĩCa(OH)2�Ƃ�,��oՓ��úηNԭ�ϣ��ʯ��Ƃ�,��Ͷ��ϵ�y(t��ng)��OӋ��M��]��,��Ԅӻ��Ա��ۉmΣ��,��o��˵Ľ��,��(j��)��(j��ng)򞣬ʯ��ȑ��5%��10%��,��
��
�OӋע��£�
��
�ٲ��ö�ʽ��C��ʯ��,��Cʯ�҉K��С��30mm��
��
��ʯ�ҵĶ��ݔ��˲��ݔ�͙C,��ۉm�w�P,��
��
��ʯ��Һ��Ʋۼ��۶��O�Ô��b�ã��跽ʽ�ɲ��ÙCе��򉺿s�՚┇��,��ԙCе��Ӷ�,��Cе��辀�ٶ�һ�� 3m/s��ң��՚┇�菊�Ȟ�8��10 L/��s·m2��[1],��
��
��Һ�õ��x�͑��]�õ��͸��g��ĥ��,��

2.2 �кͷ��
��
⁰��ԏUˮ��Ҫ��Ⱦ��H2SO4��΢��FeSO4·7H2O��Ca(OH)2��Һ�c��M�з��,��CaSO4��,��pH��8��ϕr��Uˮ��ԭ�ЃɃr�F�}��r�F�},��F�z�w��|(zh��),��ã��ӿ��ٶ�,��Ca(OH)2��Һ��Ͷ�ӿ�ͨ�^pH�ھ��y�M��{(di��o)��,��pH�˿��6.5��8.5��_��Ч��,��(j��)�\�н�(j��ng)�,��кͷ��ͣ��r�g��15��30min��,�� кͮa(ch��n)��CaSO4�ض��^��,��ɲ��ʹ��ďUˮ��ȥ��,��ȡ��^�õĳ��Ч��,��p�pCaSO4�Y��F(xi��n)�󣬿��ڏUˮ��ǰ�m��Ͷ�Ӹ߷��۱�ϩ��PAM��,��ʹCaSO4��Ҹ��һͬ��ɑҸ��w��,��߳��ٶȣ��p�pCaSO4�Y��F(xi��n)��,��PAMͶ��cPAM�ķ��кܴ��Pϵ,��һ��÷��300��600�f��λ��Ͷ��ˮ��0.1%��0.15%��ھ��F(xi��n)�Uˮ�cPAM��B�m(x��)��,��
��
�OӋע��헣�
��
��кͷ��ۑ��O�Ô��b��,��ʹ��򡢿��M��,��跽ʽ�ɲ��ÙCе��򉺿s�՚┇��,��Cе��辀�ٶ�һ��9m/s��ң��՚≺��0.1��0.2MPa,��՚┇�菊��0.2m3/��min·m3)[1],��
��
��(j��)�\�н�(j��ng)򞣬�՚┇��ɴ��߷��Ч��,��p��ʯ��,��h�OӋ�Ѓ�(y��u)��x�ã��ĤƬʽ��ؚ��^,��
��
��CaSO4ճ��^��,��б�塢б�ܳ��б��,��б�ܶ��,��S�o��^��OӋ�Б��M��,��Q��ʽ��,��ݗ��ʽ��Ч�ݷe��ռ��eС,��෽��,��m��CaSO4�ķ��x��С��Uˮ,��OӋ��x�È��ʽ��,��g��\�У��ڴ��Uˮ,��OӋ��x��ݗ��ʽ��,��B�m(x��)�\�С��,��ݗ��ʽ��й��C,��ɜp��؃�(n��i)��CaSO4�ĽY��F(xi��n)��
��
Ŀǰ,��ԣ�d�ȏS�Ҳ��øꠖĤ�^�V��?zh��n)��y(t��ng)�ĳ��،�⁰��ԏUˮ�M��̎��,��ռ��eС��ˮЧ��O�ѣ�SS�ӽ��㣩�ȃ�(y��u)�c,��ԓ�^�V��O��M��^��,��CaSO4��Ĥ��ճ��,��趨��ϴ��Q��h�OӋ�r�C�Ͽ��]ռ��,��Ͷ�Y,��ˮˮ�|(zh��)Ҫ��\��M�õȸ�헽�(j��ng)��,��g��,��x��,��
��
��CaSO4ճ��^��,��ص��OӋ��ֿ��]��ܙz�ޡ��S�o�ķ��,��oՓ�ηN��,��ȫ��ʽ�OӋ��ܵ��OӋҲ��,��O�Û_ϴˮ��·,��M�Л_ϴ��,��

2.3 ��̎��
��
��Óˮ�O��a(ch��n)ؓ��,��M��ܜp�ٝ��ĺ�ˮ�ʣ��ĳ��ų��,��һ��ȥ��s��M�Н�s,��MÓˮ�CÓˮ��s��g��\�в��H�𵽝�s��,��Ҳ��һ��A�漰��_��,��С��ďUˮ��ڳ��g��\��,��Ҳ��һ��ĝ�s��,��ֱ��M��Óˮ�CÓˮ��
��
Óˮ�C��x�ͣ�
��
Ŀǰ,��ˮ̎��õ��Óˮ�O��Ҫ�Ў�ʽ��V�C,��򉺞V�C��x��Óˮ�C��,��ʽ��V�C,��x��Óˮ�C��̎��B�m(x��)�\�ж��ˮ̎��ИI(y��)�V��ʹ��,��ڹ��I(y��)��ˮ̎��O��x��,��\��M�õĸߵͣ�Ҳ��b�õ��\��?j��ng)Q��,��
��
⁰��ԏUˮ��o�C��,��Ҫ�ɷ֞�CaSO4��Óˮ��Î�ʽ��V�C,��x��Óˮ�C�M��Óˮ,��V�ˮ�ʸߣ�70%��85%��Óˮǰ��,��Ч��ĺÉ�ֱ��Ӱ푵�ÓˮЧ��ĺÉ�,��5kg/t��ࣩ��ÿ��s6�fԪ��,��f,��򉺞V�C�mȻ�ڄӏ��ȴ��a(ch��n)��С,��Y��,��ɿ��,��V�ˮ�ʵͣ�30%��50%��,��⁰��ԏUˮ��Óˮ��ɲ��,��Hˎ��һ�,��ͱ��ɷN�C��\��M�ù�(ji��)�s��300Ԫ/t��ࣩ��⁰��ˮ̎��Ծ��һ��ă�(y��u)��,��Ŀǰ,��(n��i)�󲿷�⁰��a(ch��n)�S�Ҿ��ð�򉺞V�C�M��̎��H��e⁰׷��a(ch��n)�S�Ҳ��Î�ʽ��V�C�M��Óˮ̎��,��Ҿ��һ��},��磺ĳ⁰׷ۏS��ˮ̎��վ1994�갲�b��3�_��ʽ��V�C��ڞV��䲻��m,��mƫ��ԭ��,��һֱδ��\�У�1997��Q�ɰ�򉺞V�C��,��\��,��һ⁰׷ۏS��ˮ̎��վ�Ď�ʽ��V�C�mȻ�\��߰��ˎ��M��,��׌�S�Ҳ��ؓ,��^�ߵĞV�ˮ�ʟo��\ݔ�M�ã��ʶ��Ŀ,��I(y��)��Ҫ��ð�򉺞V�C,��
��
�C��F(xi��n)�A�β��ð�򉺞V�C��⁰��ˮ��̎��O��һ��ļ��g��,��(j��ng)��,��h�OӋ�Ѓ�(y��u)�x�ð�򉺞V�C,��
��īI��

[1] ��³У��.��Ṥ�I(y��)�ďUˮ̎��[M].��:��W��I(y��)��,��1998,��

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