�к�-��Ĥ�^�V��ˇ̎�팚��܈��\�Uˮ

��r�g��2008-11-11 14:51 ��Դ�� : ��x��2541

1��Uˮ��Դ��ˮ�|(zh��)

��\�C�M��a(ch��n)��ˇ�У��߮a(ch��n)Ʒ�|(zh��)��,��a(ch��n)��ˇ�M��˸��M,��´��Zn²⁺�S�Uˮ�ų��Ķ�ʹ��A�Uˮ̎��ϵ�y(t��ng)��ŷ�ˮZn²⁺��ˣ��ŷŘ˜ʞ�≤4 mg/L,��ƽ��14.26��9.71mg/L,��U��M20��30�fԪ��һ��YԴ��M,��ˮ�\��˵ďUˮ��Ҫ��ԙC�M�е��\�Ӻ͏Uˮ��,��ˮ�|(zh��)׃��oҎ(gu��)�ɣ��ɷ�ԔҊ��1,��

��1��܈��\�Uˮˮ�\|(zh��)
��(n��i)��	��(sh��)ֵ
��\��/(mg·L^-1)	≤800
pH	1��5
SO₄^2-/(mg·L^-1)	≤23000
TFe/(mg·L^-1)	≤50
��x��/(mg·L^-1)	≤450

��б�Ҫ�ڼӏ��ˇ��ƹ��ͬ�r,��܈��\�Uˮ�M��ͬ�r�O��\�M�л��,��

2��к�-��Ĥ�^�V��ˇ�Ĵ_��

��܈�S�僺��\�Uˮ̎��,��ܿ��D��õľ��ޣ��e��600m2,��̎��ˮ��^��,��к�—��ռ��e��800 m2��,��(j��ng)��^��]��䓌��H��a(ch��n)�^��ЬF(xi��n)��g(sh��)ˮƽ,��F(xi��n)��D��ü��g(sh��)��(j��ng)��ָ��x��к�—�^�V��ʹռ��e��400 m2,��mȻ�к�—�^�V��Ć�Ԫ��g(sh��)�ǳ��,��͹��I(y��)��w�Uˮ̎��ϵ�y(t��ng)��в��Ҋ,��OӋ��в��M��Ĥ��x��g(sh��)��ĤҺ�w�^�V��,��(n��i)�Пo��̎��僺��\�Uˮ��Ҋ,��M��˱�Ҫ��ģ�Mԇ�,��̽��\�Зl��Vǰ�Uˮ��pH,��VÓ��,��V�٣��Դ_��m��OӋ��(sh��),��

2.1��OӋ��(sh��)

��Uˮ̎��120��150 m³/h
��Uˮˮ�|(zh��)��ԔҊ��1
��кͷ��pH��ֵ��8.5��9.0
��ʯ��Ƃ��20 m³/h
��ʯ��ȣ�8%��10% Ca(OH)₂
��s�՚��35 m³/min,��0.2 MPa��
��Ĥ�^�V��^�VĤ�ף�0.5 μ
��Ĥ�^�V��^�V��0.1��0.2 MPa
��^�V��ҺZn²⁺��(��)��Zn²⁺≤4 mg/L

2.2��ˇ��

��܈��\�C�M�ų��ĸ��\��ȏUˮ�M��кͷ��أ��Թ��I(y��)��ʯ�Ҟ��к̈́��к�,��UˮpH��1��2��ߵ� 8.5��9,��Ȼ��(j��ng)��ĤҺ�w�^�V��Һ��x��^�V��VҺ�_��ŷ�,��ͬF(xi��n)��A�Uˮ̎��ϵ�y(t��ng),��ˇ��Ҋ�D1��

��̎��ˇ��PLC��,��O��y�T��O�F(xi��n)��Ʋ��,��ͬ�r�ڲ��҃�(n��i)�O��ƺ��˙C��湤��վ��ϵ�y(t��ng)��B(t��i)��(j��)�O�õ�CRT��M�ЄӑB(t��i)�@ʾ,��Ɍ��F(xi��n)�O��Ͻy(t��ng)Ӌ,��\�Р�B(t��i)�@ʾ�Լ��vʷӛ䛲�醡�

��ɈD1��֪,��僺��\�Uˮ̎��b��Ă��Ԫ�M�ɣ�

��,�� кͷ��Һ��x��Ԫ��@��ˮ̎��ˇ�ĺ��Ĳ��,��ַ��Ч��pHֵ��ʹZn²⁺�γ�Zn(OH)₂��,��Ǵ_��Uˮ�ϸ��ŷŵ�ǰ�ᣬ��Ч�ʵĹ�Һ��x�Ǳ��C�ϸ��ŷŵ��P�I,��Ԫ��3��кͷ��,��3�_��ĤҺ�w�^�V��Լ��՚┇��b�úͿ��ƃx��ȽM�ɡ�

��,��ʯ��Ƃ估��o��Ԫ,��ԓ��ʯ��ς}��ʯ��Ƃ估��Ͷ��ϵ�y(t��ng)�M��,��}�w,��o�ϙC��,��ܽ��,��C�M��ʯ��ݔ�ͱõ��Oʩ��Ƃ�õ�ʯ��Ȟ�8%��10%,��ݔ�ͱ��кͷ��,��

��,�� ̎��Ԫ��ռ��,��{�õȽM��,��ཛ(j��ng)��s��͉��V�C��V��

��,�� }����ϴ��Ԫ,��}��غ�ݔ��ѭ�h(hu��n)�õȽM�ɡ�ԓ��Ǟ��ϴ�VĤ�Ϛ��CaSO₄��Zn(OH)₂��Ĥ��Ӱ��^�V��,��

3��Ҫ��g(sh��)��(j��ng)��ָ�˺�̎��Ч��

3.1��Ҫ��g(sh��)��(j��ng)��ָ��

��Uˮ̎��2880 m³/d
��I(y��)��ʯ�ң�7.47t/d
��s�՚��35m³/min
��1800 kWh/d
��^�Vˮ��ã�200m³/d

3.2��̎��Ч��

��H̎��ˮ��c��ˮˮ�|(zh��)��rҊ��2,��(j��ng)�h(hu��n)��T�S�C��ӣ��δ�l(f��)�F(xi��n)Zn²⁺��,��

��2��̎��ˮ��cˮ�\|(zh��)
��(n��i)��	�\��ƽ��ֵ	�h(hu��n)��˜�ֵ
̎��ˮ��/(m³·h^-1)	100��120
Zn²⁺/(mg·L^-1)	2.13	≤4
pH	8.5��9	6��9
SS/(mg·L^-1)	��1	��150

3.3��Ч��

��ԓ��Ͷ�Y�s1300�fԪ,��Ͷ�a(ch��n)�󣬱��˭h(hu��n)��T�ľ��~�P��ÿ��U�{��M20��30�fԪ,��Ŀǰ,��^�V��Һˮ�|(zh��)�^�ã��Ѵ��ԭ�OӋ��Ƃ�ʯ��õĹ��I(y��)ˮ��s��ˮ,��ÿ��ɹ�(ji��)�s��I(y��)ˮ200 m³��,��(j��)��ˮˮ�|(zh��)��r��̎��ˮ�|(zh��)��Ͽ��_��ӽ��䓹��I(y��)ˮˮ�|(zh��)�˜�,��@��ˮ��,��Ӌһ��ɹ�(ji��)�s��I(y��)ˮ�s1.0 Mm³��I(y��)ˮ�r��1.2Ԫ/m³Ӌ,��ۺ��120�fԪ,��

4��ĤҺ�w�^�V��д��ڵĆ��}

4.1��ĤҺ�w�^�V��c

��ĤҺ�w�^�V��ǌ��w��ķ��ϩ��g(sh��)�cȫ�Ԅӿ��ϵ�y(t��ng)��ؽY(ji��)��һ��Ĺ�Һ��x�O�䡣��^�V��ʽ��,��ñ�Ĥ��M�б��^�V,��ʹҺ�w�еđҸ��w��ȫ��ڱ�Ĥ�ı��棬��^�VЧ��,��ԓ�VĤ��б��Ħ��ϵ��(sh��)��,��λĤ��e�ɿ��ʸߵ��ԣ��ʼ�K��^��^�V��^��Ĥͨ��,��,��Ĥ��Ͼ��^�õĻ��W��(w��n)��Բ��ܽY(ji��)��O��b��Ԅӷ��ϴ��c��B�m(x��)�^�V,��ʹ��O��w�eС,��ռ��eʡ��

4.2��д��چ��}

��܈�S��\�Uˮ̎��ñ�Ĥ�^�V��g(sh��),��(j��)�˽��(n��i)��Ќ��,��]�Б��Ì��ͽ�(j��ng)�,��ڑ��д��һЩ��}��Ҫ�w�{��£�

        4.2.1��Uˮ��pH�^��(pH��5)�r,��Ͷ��к̈́�Ca(OH)₂��͜p��,��ʹ�Uˮ�еĺ��^��,��p��õļܘ��|(zh��),��Ķ�Ӱ��^�VЧ��^�V��ķ��_��ȡͶ��M��A̎��ʯ��p�|(zh��)̼��}��k��,��ʹ�^�Vڅ�ڷ�(w��n)��,��

        4.2.2��ԭ�OӋ��ʯ��Ì�䓹��I(y��)��ˮ��I(y��)ˮ�еľ��,��Ǽ��ķ��(ճ��w)�Sʯ��M��Uˮ��,��Ĥ�^�V�a(ch��n)��Ӱ푡��һ�㻯�W��o��ճ��w��|(zh��)��ϴ�Ƀ�,��۸��Ĥ��,��Ķ�Ӱ��^�VЧ��Uˮ�к��^�ٕr��r�Ȟ�ͻ��(��ֱ�Ӹ��ڞVĤ��),��ȡ��Uˮ��Ͷ�� NaClO(Ͷ�ӝ�Ȟ�15��20 mg/L)��ÞV��Һ��湤�I(y��)ˮ��ʯ��Ĵ�ʩ,��ʹ�^�V��֏��\�С�

        4.2.3��ĤҺ�w�^�V��ÿʹ��һ�Εr�g��,��Ҫ��}��M�л,��VĤ��ʹ��ڮ��һ��޶ȣ��rҪ��Ը��Q,��һ��ʹ��ܾS�ֶ��L�r�g�Пo�@��Ľ�(j��ng)�,��`�C��

5��Y(ji��)Փ

        5.1��к�—��Ĥ�^�V��ˇ̎��僺��\�Uˮ�ǳɹ��,��x�ÞVĤ�׏��0.5μ,��pH��8.5��9��ɴ_��Zn²⁺��ȥ��,��ˮ��ʣ��_��ŷŘ˜�,��

        5.2��x��ʹ_��̎��ˇ�r��Ԕ��˽�Uˮ�ā�Դ��Uˮ��ˮ�|(zh��)��׃��,��pHֵ,��ЙC���弰�͵�Ӱ��^�V��,��Ա��ȡ��Ĵ�ʩ��O�{(di��o)��(ji��)�صȣ�ʹ�^�V��l(f��)�]��,��

        5.3��ĤҺ�w�^�V�ĸ�ȥ��ʣ�ʹ��Һ�ɵõ��,��Թ�(ji��)�sˮ�YԴ,��F(xi��n)��ŷ�,��