MBBR��ˇ̎��Uˮ��(sh��)��

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�㽭ĳ��F(tu��n)��ˮ̎��Sԭ��A2O��ˇ,��Ҫ��ȥ��ˮ�еĸ߄P�ϵ��M(j��n)ˮ�ɶ�N��a(ch��n)�Uˮ�M��,��ˮ�|(zh��)��(f��)�s,��a(ch��n)��Ȳ��a(ch��n)��ʯ��Һ��иߝ�ȵ�Ca2+��s2һ��(du��)΢��(y��ng)��ˮ̎��S��\(y��n)�Юa(ch��n)��^��Ӱ�,��ԇ��(du��)ԭ��ˇ�M(j��n)��һ��ĸ��M(j��n),��ǰ��A(y��)̎��O(sh��)ʩ��˵ĸ��B(t��i)��θĞ�Ҹ��B(t��i)�͸��B(t��i)��MBBR��ˇ,��(qi��ng)��Ч��,��(j��ng)�^(gu��)ԇ�(y��n)ȡ��A��Գɹ��

1.ԇ�(y��n)��c��

1.1ԭˮˮ�|(zh��)

��ԇ�M(j��n)ˮ��ˮ̎��S��|(zh��)�صĳ�ˮ,��ˮ�|(zh��)ָ��(bi��o)Ҋ(ji��n)��1��(j��)ԇ�(y��n)Ҫ��,��M(j��n)ˮ��ȣ��@��鰱��a(b��)��ˎ��S��,��TKN�|(zh��)��120220 m��L,��

1.2��ˇ��̼��Ҫ�b��

��ˮ̎��S�F(xi��n)�\(y��n)�й�ˇ��A2O��ˇ��Ҋ(ji��n)�D1��,��ǰ��A��0�Ξ��෨,��κ��Ͷ�ӏ��,��O(sh��)Ӌ(j��)��14 400 m3/d.��ԇ�b��Ҋ(ji��n)�D2��100 L/h,��24 h�B�m(x��)�\(y��n)��,��

ԓ��ԇ�b�õ��c(di��n)��A(y��)̎��O(sh��)ʩ��ڶ��κ��Ğ�MBBR��ˇ,��ԓ��ˇ��Ҹ��B(t��i)�͸��B(t��i)��,��ʡȥ��г��ء��Ҫ�b�õ�Ҏ(gu��)��,��ߴ�Ҋ(ji��n)��2,��

2.ԇ�(y��n)�Y(ji��)��ӑՓ

2.1��(d��ng)��\(y��n)�Зl��

ԓ��ԇ��2007��4��_ʼ�\(y��n)�У��ȽӷN΢��,��Ͷ�ӵ��(l��i)��ԓ��ˮ̎��Sһ�κ��,��ˮ�ͼ��@��ԁ�(l��i)ˮ��B(y��ng)MBBR��

��Ͷ��NaHcO,��{(di��o)��(ji��)�A��,��߰��ؓ(f��)�ɡ�Ȼ��һ�κ��(l��i)ˮˮ��,��(j��ng)�^(gu��)��һ��(g��)�µ��B(y��ng),��_(d��)��A(y��)��Ҫ�󣬿��B�m(x��)�M(j��n)ˮ�M(j��n)��ԇ�(y��n),��\(y��n)��^(gu��)��,��ȱ��غͺ��ص�MLSs��4 832 m��L��MBBR��еđҸ��B(t��i)MLSS��5 091 mg/L.ȱ��ص�D03 mg,��L,��MBBR��е�DO 34 lng/L��\(y��n)��pHֵ��7.4.7.5,��C��L(zh��ng)�l��[1Ҳ].

2.2�A(y��)̎��Ч��

��A(y��)�ؚ�؃�(n��i)��FeS04,��Ͷ��NaHcO��{(di��o)��(ji��)ֵ��7.7��,��(du��)��ˮ��Ca2+,��S2һ�M(j��n)�бO(ji��n)�y(c��)��ˮCf+�|(zh��)��Ȟ�300 mg,��IJ��,��A(y��)̎��ˮS2һ�|(zh��)��ε�S2һ��Ȳ��(hu��)��(du��)΢��a(ch��n)��ƣ��A(y��)̎�팦(du��)ca2+��ȥ��,��Ч��,��(du��)��^��,��

2.3 CODȥ��Ч��

��(j��)ԇ�(y��n)Ҫ��M(j��n)ˮ��COD.�|(zh��)��Ҫ�_(d��)��1 000 mg/L,��ԇ��ˇ?y��n)^�m(x��)��Ãɶκ��,��ǰ�÷��؄e�Ƿ��A�Ό�(du��)c0D��^��,��(j��)��(b��o)��Ҫ�_(d��)��ȫÓ��Ч��,��COD��TKN��(y��ng)��6.6¨1,��ԓԇ�(y��n)�ġ�D��cOD��,��D��TKN��4.58.3��ƽ��ķ��ʞ�69%.��mȻ�M(j��n)ˮ��COD�^��,��߀��܉��C��ˮ��c0D�|(zh��)��100.��L��,��D3��2007��89��ԇ�(y��n)��g�ĳ�ˮ,��ˮCOD�|(zh��)��40һ80 m��L,��ƽ��ȥ��ʞ�93.3%��ȫ�܉��_(d��)��(gu��)�ҡ��ˮ�C��ŷŘ�(bi��o)��(zh��n)��GB8978һ1996��е�һ��(j��)�ŷŘ�(bi��o)��(zh��n),��

2.4��ȥ��Ч��

2007��89�P�ϵ�̎��Ч��,��M(j��n)ˮ�ĄP�ϵ��|(zh��)��120220 m��L��ȥ��_(d��)95%��,��ԓ��ˇ��(du��)�P�ϵ��кܺõ�ȥ��Ч��,��ں�β��õ�MBBR��ˇ��؃�(n��i)��ڑҸ��B(t��i)�͸��B(t��i)�ɷN��ʽ��,��˲��,��Ҽӏ�(qi��ng)��ϵ�y(t��ng)��_��ؓ(f��)�ɵ��ؓ(f��)�ɞ�O.018 kg/��kg.d��,��ԇ�(y��n)�M(j��n)��2007��9�·ݺ�,��ҹ�ز��8�·ݴ�ö࣬��(g��)ϵ�y(t��ng)��(du��)�P�ϵ��Ŀ��ȥ��½�,��

2.5 MBBR��}�x�ӷ��

��(j��)��P(gu��n)�Y�ψ�(b��o)��,��Ca2+�ĳ��e��(du��)��(y��ng)��¨��ԓ��ˮ̎��S�\(y��n)��^(gu��)��,��ں�˺��ز��ˏ��,��}�x�ӵĳ��e��ϣ��΢��L(zh��ng),��(d��o)��(g��)��O��Ч��ܲ�,��A(y��)̎�팦(du��)Ca2+��̎��룬��\(y��n)��MBBR��ˇ�^(gu��)��Ќ�(du��)Ca2+�M(j��n)�б�Ҫ�ıO(ji��n)�y(c��),��5�·ݜy(c��)��}��2.13%,��7�·ݜy(c��)��}��1.89%,��9�·ݜy(c��)��}��1.04%.��ϔ�(sh��)��(j��)��֪Ca2+��(hu��)��ϰl(f��)��e��MBBR��ˇ��ǿ��Ƅ�(d��ng)��,��ϵ�Ca2+��ؚ�ě_��(hu��)�Ԅ�(d��ng)Ó��,��ԓ��ˇ��Ա��}�x�ӵ�Ӱ푡�

3.�Y(ji��)Փ

��1��ͨ�^(gu��)��Ч��A(y��)̎��Ժ�,��ˮ��S2һ��^��,��ca2+��ȥ��Ч��^�ͣ�ȫ��̎��r��^��(w��n)��,��ں�ε��̎��,��

��2��ԓԇ�(y��n)�M(j��n)ˮ100 uh��COD�|(zh��)��_(d��)��1 000 mg/L�r(sh��),��ˮCOD�|(zh��)��ȿɷ�(w��n)��80 mg/L��,��(du��)CODƽ��ȥ��_(d��)93.3%��ȫ�_(d��)��Ҫ��,��

��3��MBBR��ˇ�܉�(w��n)��Ч�ʵ�ȥ��P�ϵ�,��ƽ��ȥ��95%��ϣ��ؓ(f��)��0.018 k�Σ�kg.d��,��

��4��(du��)MBBR��ϵ��}�x��M(j��n)��˸�ۙ�O(ji��n)�y(c��),��l(f��)�F(xi��n)�}�x�Ӳ��(hu��)��ϰl(f��)��e��˲��(hu��)��(du��)��a(ch��n)��Ӱ�,��

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