��ȥ��像Uˮ��ؽ��x�ӵ��о�

��r�g��2011-10-11 10:25 ��Դ�� : ��x��3124

�像Uˮ��Ⱦ��,��^�y̎��ďUˮ֮һ��1��,��y(t��ng)��像Uˮ��̎��Ҫ�л��W��2-4��Ĥ��x��g��5��,��x�ӽ��Q��6-7��,��8��ЙC��,��늽ⷨ��9-10��,��΢��̎��g��d��像Uˮ̎��g��\�û�Ͼ�Ⱥͨ�^��,��,��D��ȾC��á�11-14��_��ȥ��像Uˮ��ؽ��x�ӵ�Ч��,��΢��̎��g�m��ԏ�,��O�了�Ρ��o��Ⱦ,��̎��M�õ�,��像Uˮ��̎��V韵đ��ǰ��P��Ï��ؽ��Ⱦ��кY�x��Ļ�Ͼ��N��ؽ��ٵ��像Uˮ�M��̎��,��pH,��NͶ��ضȼ��r�g��Ͼ��Nȥ��像Uˮ��ؽ��x�ӵ�Ӱ�,��ͨ�^��򞌦�@4��Ӱ��M��˃�(y��u)��,��_��ѵ�̎��l��@��^�õ�Ч��,��

1·��Ϻͷ��

1.1��

1.1.1��Ҫ��x��ԇ��

�x��IRIS Advantage 1000��늸��ϵ��x��w�l(f��)��V�x,��Thermo Jarrell Ash��˾��HHS28��늟��ˮԡ�,��Ϻ��ƽ�x��S,��JB21�ʹ��Ϻ��״��܃x��޹�˾,��800��x�ęC,��Ϻ��g��е�S��ԇ��ᡢ��c,��,��Ї��t(y��)ˎ�Ϻ��Wԇ��վ,��

1.1.2��Uˮ

��Ì��H�像Uˮ��ƽ��ĳ�像S�ŷŵďUˮ,��ˮ�|��1��ʾ��ڌ�ȥ��ؽ��x��Ӱ��ص��о��,��õ��ģ�M��ˮ,��

1.2��򞷽��

1.2.1��N��Ƃ�

��΢��Ǳ��ҏ��ؽ��Ⱦ��кY�x��Ļ�Ͼ��N��(j��ng)��b��,��1��,��3��߀ԭ��٣��s��2��1��1��1,��؅��h(hu��n)��,���r��2 L�ą��ƿ,��ʳƷ�l(f��)��Һ��Ҫ��B(y��ng)��,��ӷN�w�e�֔�(sh��)��10%�Ļ�Ͼ��N��35��B(y��ng)2 d��,��ȡ��Һ��ڌ��,��

1.2.2��،��

ȡ200 mL��ؽ��ُUˮ��k,��t,��~��懽��x�ӵ��|��ȷքe��40��30,��10,��50 mg/L��pH,��NͶ��,��ضȺͷ��r�g�Ȳ�ͬ�ķ��l��M��ԇ򞣬��OD600=0.6�ľ�Һ��B(y��ng)�s48 h��,��1 min,��30 min��o��10 min��,��x�ęC��2 000 r/min��x�ķ��x,��ȡ��Һ�y��x�ӵĝ�ȣ�Ӌ��䌦��x�ӵ�ȥ��,��

1.2.3��

1.2.4�C��C��

ȡ200 mL��H�像Uˮ��(j��)��ѷ��(sh��)��M��C��򞣺��Ҝؗl��Ú��c��Һ�{pH=6.0,��քe��8 mL/L�ľ�Һ��]��H�像Uˮ��ЙC��Ӱ�,��ʼӴ��NͶ��1 min,��20�淴��20 min��,��{pH��6��7��^�V,��y��Cd2+,��Cr6+��Cu2+,��Ni2+�ĺ��,��

1.2.5ָ�˜yԇ��

��^��Ҫ�y��ָ�˺Ͳ��õķ��3��ʾ,��

2·��Y��ӑՓ

2.1��،��

2.1.1 pH��ؽ��x��ȥ��ʵ�Ӱ�

pH��ؽ��x��ȥ��ʵ�Ӱ�Ҋ�D1,��

�ɈD1��Կ��ڲ�ͬ��pH�l��,��4�N��x�Ӷ��в�ͬ�̶ȵ�ȥ��,��ȥ��ʿ��w��S��pH��߶��ӡ��ؽ��x�ӝ��½��Ҫ�Ѓɂ��ԭ��һ��,��@Щ��x��һ��,��ԗl��򻯚��ʽ��ڣ�S2-��cH+��ȵ�ƽ��ɷ��,��Ԝp��,��S2-��Ⱦ͕��󣬸��ڽ��,��һ��,��x��cH+֮�g��Pϵ��ڵ�pH��,��Һ�е�H+,��󽵵��˼��c�ؽ��x�ӵĽY��ͷ��C��S��pH��,��ؓ늺��ܶ��,��ؽ��x�ӵ��ӣ��ؽ��x�ӵ��x��,��pH=6.0�r,��Һ��k��t,��~,��ȥ��ʷքe��_��96%,��94%��83%��91%,��f,��Һ��4�N��x�ӵ�ȥ��Ξ飺Cd2+��Cr6+��Ni2+��Cu2+��

2.1.2��NͶ��ؽ��x��ȥ��ʵ�Ӱ�

��NͶ��ֱ��Ӱ푷��wϵ�е��,��Ծ��NͶ��x�ӵ�ȥ��ʾ��к܏��Ӱ�,��NͶ��ؽ��x��ȥ��ʵ�Ӱ�Ҋ�D2,��

�ɈD2��Ҋ,��x�ӵ�ȥ��S��NͶ��Ӷ��ӡ��NͶ��1.0 mL/L�r,��x�ӵ�ȥ��L��,��NͶ��^1.0 mL/L��,��x��ȥ��_ʼ�@��ӣ��ھ��NͶ��2.0 mL/L��ҕr�_ʼڅ��ƽ��,��NͶ��_��3.0 mL/L�r,��k��t,��~,��4�N��x�ӵ�ȥ��_��ߣ��քe��94%,��96%,��82%��93%��@��΢��ֱ��Ӱ푌��ؽ��x�ӵ�ȥ��,��

2.1.3�ضȌ��ؽ��x��ȥ��ʵ�Ӱ�

�ض��Ӱ푾��N��^�̵��Ҫ�h(hu��n)��֮һ,��ÙC��Ҫ��3��棺һ�ǜض��߿ɼӿ�΢��ʣ�ʹ�û�Ͼ��Լӿ��ؽ��x�ӵ��D��,��Ǽ��ϵ��ͻ��W��,��W��ؓ��ض��ߕr��a(ch��n)��Ҳ��ܜp��,��ǰ��S��ጷ�,��˜ض��p�٣��x�ӽ��Q��ᷴ��,��x�ӽ��Q��Ƿşᷴ��,��ˣ��ض��x�ӽ��Q��,��ڷ��x�ӽ��Q��,��ͬ�ض��ԇ�ӌ��k��t,��~��懵�ȥ��,��D3��ʾ,��

�ɈD3��Ҋ��4�N��x�ӵ�ȥ��ʿ��w��S��ضȵ��߶��,��20��r,��k��t,��~��ȥ��ʾͽӽ��ֵ��քe��96%,��95%,��83%��90%��ڜضȣ�20��r,��ضȌ�΢��̎��x�Ӿ��һ��Ӱ�,��ضȣ�20��r��ضȌ��ֵČ��Ӱ��΢,��ڳ��ؗl��M��,��

2.1.4��r�g��ؽ��x��ȥ��ʵ�Ӱ�

��r�g��ؽ��ȥ��ʵ�Ӱ�Ҋ�D4��

�ɈD4��Կ��,��ؽ��x�ӵ�ȥ��S��M��,��֮��څ��ƽ�⡣�ڷ��r�g��10 min�r,��4�N�ؽ��ȥ��ʻ��_��50%,��r�g�_��20 min�󣬼��k,��t,��~��懵�ȥ��ʽӽ��ֵ,��քe��95%,��95%��83%,��90%,��ں��m(x��)�r�g��ؽ��x�ӵ�ȥ��ʎ׺��]��׃��,��,��̎��r�g��20 min�ԃȾͿ��_��ܺõ�̎��Ч��

2.2��

��1.2.3�M�е��Y��Ҋ��4,��5,��

�ı�4��5��Կ��,��Ӱ푏Uˮ�и��x��ȥ��Ӱ푳̶��ɴ�С��Ξ�pH>��NͶ��>��r�g>�ض�,��M��_��ѷ��(sh��)�飺pH=6.0,��r�g20 min��΢��3.0 mL/L,��ضȞ�20��,��

2.3�C��C��

�C��C��Y��Ҋ��6��

�ı�6��Կ��,��ʹ�þ�Һ��H�Uˮ�M��Cԇ�r,��H�像Uˮ��k��t,��~,��4�N�ؽ��x�ӵ�ȥ��Ч��ã�ƽ��ȥ��ʷքe��97.7%,��98.6%,��95.0%��91.5%��

3·�YՓ

ӑՓ��΢��̎��像Uˮ�ؽ��x�ӹ�ˇ�е�Ӱ��,��ͬӰ��ؗl��µó��ĽY��M�з��,��ͨ�^��_��ѷ��(sh��)��΢��3.0 mL/L,��r�g��20 min,��pH=6.0��ض�20��(y��u)�M�ϗl��,��˅��(sh��)��ڌ��H�Uˮ̎��õ��˺ܺõ�̎��Ч��,��Ͼ�Ⱥ��ؽ��ُUˮ��^��m��ԣ��܉��̎��Uˮ,��ЏV韵đ��ǰ��,��

�ۅ��īI�ݣ��

����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,��