MBBR��ˇӰ��ط��

��r�g��2009-04-22 08:54 ��Դ�� : ��x��3795

1��ό�MBBR��Ӱ�

MBBR��ļ��g(sh��)�P(gu��n)�I��ڱ��ؽӽ��ˮ��p΢��Sˮ��\�ӵ��,��ͨ��ɾ��ϩ��Ƴ�,��ÿһ��d�w��Ξ�ֱ��10mm��8mm��С�A��w,��A��w��ʮ��֧�Σ��ͻ��Q�l��,��пղ��ռ��w�e��0.95,��һ��Mˮ��ϵ��У�ÿһ��ˮռ��w�e��95%,�,��]��D(zhu��n)�Լ��?c��)��ݷe��ϵ��ȱ��x��d�w��ռ�Ն��ı��,��_��õĻ��Ч��,��ϵ��0.7��Փ��Ͽ��ıȱ��e�ǰ��ÿһ��λ�w�e��d�w�ȱ��e�Ĕ�(sh��)��x��,��һ��700m2/m3,��Ĥ��d�w��(n��i)��L�r��H��Ч��õıȱ��e�s��500m2/m3,��

��͵��΢��σ�(n��i)��(c��)��L,��γ��^��(w��n)��Ĥ��γ��B(t��i),��A̎��Ҫ��^�ͻ��ˮ�к��д��w�S��|(zh��)�r,��ˮ̎��в��ó��ػ��̎��д��w�S��켈�Uˮ�r��ñȱ��e�^С,��ߴ��^��,��^�õ��A̎��r��ñȱ��e��,��

2�ܽ��(DO)��MBBR��Ӱ�

��W��Ȍ�DO��MBBR��ͬ��һ��Ó��^��е�Ӱ푙C��M��Ԕ��,��J��DO��Ӱ�ͬ��һ��һ��Ҫ��ء�ͨ�^��DO��ȵĿ��,��ʹ��Ĥ�Ĳ�ͬ��λ�γɺ��^(q��)��ȱ��^(q��),��@�ӱ��ˌ��F(xi��n)ͬ��һ��l��Փ��v,��DO�|(zh��)��^�ڸߕr,��DO�ܴ�͸��Ĥ��(n��i)��,��ʹ��(n��i)��y��γ�ȱ��^(q��)��İ��}�́��},��ʹ�ó�ˮTN��Ȼ�ܸ�,��֮��DO��Ⱥܵ�,��͕��Ĥ��(n��i)��ܴ��ą��^(q��),��Ĥ��(��ˮ��́��ȶ��ܵ�)��DO��(y��ng)��,��MBBR��ˇ��Ч��½�,��ʹ�ó�ˮ��Ķ��³�ˮTN��,��Ӱ��K��̎��Ч��,��ͨ�^�о��K�ó��MBBR��̎��ˮDO��һ��ֵ��DO�|(zh��)��2mg/L��ϕr��DO��MBBR��Ч��Ӱ푲��,��ȥ��ʿ��_97%-99%,��ˮ��ܱ��1.0mg/L��£�DO�|(zh��)��1.0mg/L��ҕr,��ȥ��84%��,��ˮ��@��,��ؚ�؃�(n��i)DOҲ��^��,��ܽ��^��܉�?q��)��ЙC��Ⱦ��ֽ��^�죬�Ķ�ʹ΢��ȱ��I�B(y��ng),��ϻ�,��Y(ji��)��(g��u)��ɢ��,��DO�^��,��^��ܣ��ڽ�(j��ng)��Ҳ�ǲ��m�˵�,��

��MBBR��Ҫ��ͨ�^�Ҹ��ρ팍�F(xi��n)��K��ˮ̎��,��DO��Ҹ��ϵ�Ӱ�Ҳ��Ӱ��̎��Y(ji��)��P(gu��n)�I��ռƽ�Ȍ�MBBR��M��ˌ��о�,��Y(ji��)��(y��ng)��ĳ��һ��(n��i)�S��Ҹ��ʵ��,��ؚ��£�ˮ�S��һ��,��ˮ��Ʉӳ̶��^�o��ϕr��,��˚�Һ��ĸ��º��D(zhu��n)�ƣ�ʹ��D(zhu��n)��,��S��ϔ�(sh��)��,��,��ˮ��֮�g��@�N�и��ú��Ʉ��ò��ӏ��60%�r,��ˮ�е��Ч��׃��,��ˮ�w�Ʉӳ̶�Ҳ��ͣ�ʹ��Ă��f��½�,��ʽ��,��ᘌ��ͬ��͵�ˮ�|(zh��)��ƺ�DO��ˇ��K��̎��Y(ji��)��P(gu��n)��Ҫ��,��

3ˮ��ͣ��r�g��MBBR��ˇ��Ӱ�

��m��ˮ��ͣ��r�g(HRT)�Ǵ_��Ч��͹��Ͷ�Y��(j��ng)��Ե��Ҫ��,��ˮ��ͣ��r�g��L�̌�ֱ��Ӱ푵�ˮ��ЙC��c��Ĥ�Ľ��|�r�g��M��Ӱ�΢���ЙC��ͽ��Ч��,��ᘌ��ͬ��ˮ��ҳ��(j��ng)��HRT�Ƿǳ��P(gu��n)�I�Ć��}֮һ,��(n��i)�⌦HRT��о��]�о��о�HRT��Ӱ푣��ͨ�^��ȥ��^��,��SHHosseini�ȸ��MBBR����I(y��)�Uˮ�M��ˌ��о��Y(ji��)��һ��r��,��S��HRT��u��L,��ˮCOD��ȕ��u��͡��ͬ�r��Ҳ�l(f��)�F(xi��n)��һ��Ҫ��Ӱ��,��Uˮ�з��|(zh��)��COD��c��COD��ȵı�ֵ(CODph/CODtot),��@һ��ֵ�_��0.6(��CODDph�ĝ�Ȟ�480mg/L)�r��COD��ȥ��Ч��߲��ˮ��ͣ��r�g��Ӱ�,��(n��i)�Č��J��ˮCODƽ��S��ˮ��ͣ��r�g��L��,��Ҫ�s��ˮ��ͣ��r�g��ͨ�^�Ӵ��ϵ�Ͷ�ӱ��(��_70%)�팍�F(xi��n)��ˮˮ�|(zh��)Ҫ�󲻸ߕr�ɜp��ϵ�Ͷ�ӱ��,��߀��ԇ�Y(ji��)��еͰ��ؓ�ɗl��,��SHRT�Ĝp�٣��ϱ��ؓ��,��ͬ�rȥ��ʾS��ԭ��ˮƽ��һ��L,��ؓ��ˮƽ��S��HRT�Ĝp��,��ȥ��𲽽��,��@Щᘌ�HRT�Č��о��Y(ji��)��MBBR��ƏV��(y��ng)�õ춨�˻��A(ch��)��ͬ�rҲ��S��Ҫ��M֮̎,��ԇ�ֻ�ǆμ��Ŀ��]HRT��Ӱ�,��]�а��cHRT��P(gu��n)ϵ�ЙC�ĽY(ji��)��SHHosseini��ڷ�Uˮ̎��о��Ќ�HRT��ЙC�ĽY(ji��)��M��̽ӑ,��H�ҵ��Ҫ��Ӱ��,��ͬ�r��^��и��֮�g��໥Ӱ�,��໥�Ƽs�P(gu��n)ϵҲ�õ��˺ܺõ��w�F(xi��n)��ᘌ�Ӱ��ص��о��҂��Ҫ��ȫ��C�ϵĿ��],��

4ˮ�،�MBBR��Ӱ�

��Ӱ�΢��ӵĸ��,��ضȵ��÷ǳ��Ҫ��ض��m��,��܉��M,��΢��ӣ��ضȲ��m��,��܉�p��Ɖ�΢��,��ضȲ��m��߀�܉�?q��)��΢��ΑB(t��i)��Եĸ�׃��ʹ΢��,��΢��m�ض��ָ��@һ�ضȗl��,��΢��ӏ��š��ʢ,��F(xi��n)��ֳ��t��ֳ�ٶȿ�,��r�g�̡�MBBR��Ҫ��ͨ�^��Ĥ�и��N��΢��ꐴ��x��_��ˮ��ЙC��Ⱦ��Ľ��,��Ĥ��L�ĺÉČ�ֱ��P(gu��n)ϵ��Uˮ̎��K�Y(ji��)��,��䌦��,��L��L,��Ҍ��h(hu��n)��׃��ǳ��У��m�˜ض��20��-30��,��m�˜ض��20��-40��,��ضȵ��15��r��@����Ļ��Ծ��,��5~C��ȫֹͣ,��Ԝضȵ�׃��ֱ��Ӱ��@��L��P(gu��n)��Y(ji��)��,��ϱ��ؓ�ɵ�׃��cˮ�ص�׃��څ��һ��,��ˮ�ص͕r��ϱ��ؓ�ɵͣ�ˮ�ظߕr��ϱ��ؓ�ɼs�_��ˮ�ص͕r��15��,��ɴ˿�Ҋ,��ܜض�Ӱ푴󣬵ؗ͜l��»��^��,��

5pHֵ��MBBR��Ӱ�

΢��c�h(hu��n)��A��P(gu��n),��ֻ��m�˵��A�ȗl��£�΢��M��,��pHֵ�^��ƫ�x�m�˔�(sh��)ֵ,��΢��øϵ�y(t��ng)�Ĵ߻��ܾ͕��p��,��ʧ��ͬ�N�ٵ�΢��m��(y��ng)��pHֵ,��һ��ķ��,��@һ��(n��i)��߀�ɷ֞��pHֵ,��mpHֵ��pHֵ,��ͻ��ߵ�pH�h(hu��n)��У�΢��mȻ�܉�ɻ�,��΢��,��ֳ��ʴ�齵��,��c��ˮ��̎��΢��,��һ��ѵ�pHֵ��6.5-8.5֮�g,��MBBR��Ĥ��c��෨��Y(ji��)�ϵĹ�ˇ,��ͬ��ه��΢��L��_��ЙC�ｵ��Ŀ�ġ��Ա��΢��pH��ȡ��ˮ̎��Ч��ı�Ҫ�l��,��ˮ(�؄e�ǹ��I(y��)�Uˮ)��pHֵ׃��^��r,��Ҫ��]�O(sh��)�{(di��o)��(ji��)�أ�ʹ��ˮ��pHֵ�{(di��o)��(ji��)��m�˷��M��ؚ�,��

6��،�MBBR��Ӱ�

��(j��)ÿһ��wԇ�l��Ĳ�ͬ��߀��S�಻ͬ��Ӱ��,��ˮ��һ��(3��4),��@�ӵĚ��ʹ��(y��ng)��е��Ͼ��ѭ�h(hu��n)�D(zhu��n)��Ҳ��Ҫ��һ��(n��i),��P(gu��n)�о��Y(ji��)��ȴ�ʹ��ĳЩ�Ҹ��׸��w��Ĥ�ı��,��K��õ��M�У��̎��Ч�ʴ��½�,��ͬ�r߀��϶��,��򞌦�Mˮ��Ⱥͳ�ˮ��M��˙z�y��Mˮ��Ȟ�17.6-160NTU,��ˮ��Ȟ�18.1-142NTU,��Y(ji��)��l(f��)�F(xi��n)��ԇ�b�Ì��Ȼ��]��ȥ��Ч��ˮ��S��Mˮ��ȵ�׃��׃��,��҂��Ҫ��ƺ��Mˮ��ȵ��,��COD�ݷeؓ�Ɍ�ȥ��Ҳ�кܴ��Ӱ푣��о��COD�ݷeؓ�ɞ�0.48-2.93kg/(m3•d)�ķ��(n��i)��COD��ȥ��ʻ��(w��n)��60%-80%,��ͬ��ˮ��ͣ��r�g��COD��ȥ��Sؓ�ɳ��څ��,��@��鮔�MˮCOD��^�͕r΢��ｵ��ЙC��Ҳ�^С,��併��ܳ�ְl(f��)�]��MˮCOD��r��M��Ĥ΢��L,��˽��,��ʌ�CODȥ��ʵõ��ߡ��ϸ��ض��ˮ̎��ɲ�ͬ�̶ȵ�Ӱ�,��߀�РI�B(y��ng)��|(zh��),��ж��|(zh��)�ȣ��@Щ��|(zh��)�^��ƫ�x΢��L��Ҫ,��͕��ˮ̎��K�Y(ji��)��a(ch��n)��Ӱ�,��҂�횸��(j��)��w�ėl��Ҫ��_��һ��ҪӰ�MBBR��K�Y(ji��)��

����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��