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5—��1kgNO-3-N��Ͷ��ⲿ̼Դ(��CODӋ)5kg,��

N—��Ҫ�ⲿ̼Դȥ��TN��,��mg/l

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N=Ne-Ns ��ʽ2��

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(1)��ʽ��̼Դ��COD��ʾ,��@��Ӌ��N��̼Դ��ǰʹ�õ��ⲿ̼Դ��״��,��߀��?��c?��ǵ�?�״��(j��ng)��,��ȼ�ױ��Σ�U��WˎƷ��m��L��ʹ��ˮ̎��S,��ż��ʹ�û��^С�r,��˲��^��ȫ��̼Դ?

(2)��ʽ��е�ϵ��(sh��)ֵ2.47(��COD��ʾ��3.7)�M��ՓӋ��ֵ��錍�H��̙z��Ĕ�(sh��)ֵ,��ATV�˜��ᘌ��ζλ��෨��ˮ̎��S�OӋ��ָ��ļ�,��Ҏ(gu��)��1kgNO-3-N��Ͷ��ⲿ̼Դ(��CODӋ)5kg��(�ஔ�ڼ״�3.33kg),��@�ǏĴ��̌��`�еó��Ľ�(j��ng)�ֵ,��ԓ��ӽ��H��r?

(3)��з��ĵ��B(t��i)��Ӌ�㣬��ԁ��B(t��i)��ķe��,��Ķ��Ӌ��,��Ó��ˇ̎�ڷ�(w��n)�B(t��i)�\�Еr��ϵ�y(t��ng)�в��a(ch��n)��}�e��,��ͨ��ڷ��Ё��}��Ⱥܵ�,��Ժ��Բ�Ӌ?ֻ��r�£�ϵ�y(t��ng)��̳��\�Еr,��Ҫ��]��}�ķe��,��һ��r�²��迼�]?

(4)��ܽ��ܵͣ��Ҫ��̼Դ��O��,��Ժ��Բ�Ӌ,��Ժ��Ӌ�㡣��A/O��ˇ��A��ͨ�,��DO<0.5mg/L,��̼Դ��0.5×0.87×1.5=0.65[(COD)mg/L],��ֻ�ஔ��0.13mg/L��̼Դ��,��șz�y��Ӌ��`��߀С��ʡȥԓ헌��Y��oӰ�?

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N=Ne-Ns=20-15=5(mgN��L)

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Cm=5N=5×5=25(mgCOD/L)

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Cd=QCm=1×10^4×25×10^-3=250(kgCOD/d)

��x��̼Դ��COD��1.07kgCOD/kg��,��飺

250/1.07=233kg/d

��x�ü״��̼Դ,��COD��1.5kgCOD/kg�״��״��飺250/1.5=166kg/d

��x��c��̼Դ,��COD��0.68kgCOD/kg��c,��c��飺250/0.68=367kg/d

��x��Ǟ��̼Դ��COD��1.06kgCOD/kg��,��飺250/1.06=235kg/d

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