��Ĺ��ԭ��,��

��r�g��2017-10-09 12:36 ��Դ��ˮ��W ��: ��x��9201

��(activesludge)��΢��Ⱥ�w��ЙC��|�͟o�C��|�Ŀ��Q,��1912��Ӣ��Ŀ��ˣ�Clark��w�棨Gage��l(f��)�F(xi��n)��ɷ֞��ͅ��w�,��,��Ҫ�Á�̎��ۏUˮ�,��෨��ÑҸ��L��΢��w̎��ЙC��ˮ��һ��̎��,��

��һ�N��̎��1912��Ӣ��Ŀ��ˣ�Clark��w�棨Gage��l(f��)�F(xi��n)��,��ˮ�L�r�g�ؚ��a��,��ͬ�rˮ�|��õ��@�ĸ��ơ��^��أ�Arden��_Ó��Lockgtt��@һ�F(xi��n)��M��о�,��

�ؚ�ԇ��ƿ��M�е�,��ÿ��ԇ�Y��r��ƿ�ӵ��գ��ڶ��_ʼ,��żȻ�l(f��)�F(xi��n),��ƿ��ϴ��ƣ�ƿ�ڸ��r,��̎��Ч��,��J�R��ƿ��Ҫ��,��Q��ࡣ

�S��,��ÿ��Y��ԇ�ǰ,��ؚ��ˮ�oֹ��ֻ��όӃ��ˮ,��ƿ�׵��,��ڶ��ʹ�ã��@�Ӵ��s��ˮ̎��ĕr�g,��

1916��,��@��ԇ�Ĺ�ˇ��ɵĵ�һ��෨��ˮ̎��S��@΢�R��^��@Щ��ɫ��,��Ҋ��ļ��,��߀��ԭ��ͺ��,��M��һ��е��B(t��i)ϵ�y(t��ng),��@Щ΢����Ҫ�Ǽ��ˮ�е��ЙC��ʳ�ϣ��M�д��x�ͷ�ֳ,��Ž��ˮ��ЙC��ĺ��,��

��ԭ��

��Џ��s��΢��c�Uˮ�е��ЙC�I�B(y��ng)��γ��ˏ��s��ʳ��朡��ȓ��΄յ��Ǯ��͸��,��؄e����P�I��,��(y��u)��\�D�Ļ��࣬��Խz��Ǽ��M�ɵľ��z�F,��Ժ�,��S��\�У��ֳ,��_ʼ��Lԭ��,��Ǽ��һ�β�ʳ�ߡ,��ೣҊ��ԭ��б�ë�x,��ë�x��wë�x��x,�,��r��͵��wë�x��N�xռ��(y��u)��,��Ǽ��Ķ��β�ʳ��,��݆�x��x��ֻ��ܽ��r�ų��F(xi��n),��Ԯ��F(xi��n)��r�f��̎��ˮ�|��D��־,��ָ�˰��Һ�Ҹ��w��MLSS��,��ȣ�SV��ָ��(sh��)[��w�eָ��(sh��)��SVI��,��ܶ�ָ��(sh��)��SDI��,��

΢��Ⱥ�w��Ҫ��ԭ��ȣ��,��ԭ��Ҫ�Ķ����ָ�˰��Һ�Ҹ��w��MLSS��,��ȣ�SV��ָ��(sh��)[��w�eָ��(sh��)��SVI��,��ܶ�ָ��(sh��)��SDI��,��

��Һ�Ҹ��w��ȣ�mixedliquorsuspendedsolids��MLSS��,��ַQ��Һ��,��ʾ��ؚ�؆�λ�ݷe��Һ��Ļ��w�Ŀ��,��MLSS=Ma+Me+Mi+Mii

Ma--��д��x��ܻ��Ե�΢��Ⱥ�w,��

Me--΢����Ҫ�Ǽ��Դ��x��Ě��,��

Mi--��ԭ��ˮ��y�鼚��Ķ��ЙC��|,��

Mii--��ˮ��ğo�C��|��

��ʾ��λ��mg/L��Һ,��g/L��Һ,��g/m3��Һ��kg/m3��Һ,��

��Һ�]�l(f��)�ԑҸ��w��ȣ�mixedliquorvolatilesuspendedsolids,��MLVSS��ʾ��Һ��ЙC�Թ��w��|��ֵĝ��,��

MLVSS=Ma+Me+Mi

MLVSS�cMLSS�ı�ֵ��f��ʾ,��

f=MLVSS/MLSS

��һ��r�£�fֵ��^�̶�,��ˮ,��fֵ��0.75��ҡ��ˮ��w�ĳ��ˮҲͬ��ֵ,��

��σ��ָ�˶��ܾ��_�ر�ʾ��΢��,��ʾ��ǻ��ֵ��y��,��V��ڻ��̎��ϵ�y(t��ng)��OӋ,��\�С�

��ȣ�settlingvelocity,��SV��,��ַQ30min��,��Һ��Ͳ��o��30min��γɳ��ݷeռԭ��Һ�ݷe�İٷ��,��%��ʾ,��

��ݷeָ��(sh��)��sludgevolumeindex��SVI��,��Q��ָ��(sh��),��x��ؚ�س��̎�Ļ��Һ��ڽ��^30min�o��,��ÿg��γɵĳ��ռ��ݷe,��mLӋ��

��ݷeָ��(sh��)��Ӌ��ʽ�飺

SVI=��Һ��1L��30min�o��γɵĻ��ݷe��mL��/��Һ��1L��БҸ��w��أ�g��

=(SV��mL/L��)/(MLSS��g/L��)

SVI�ı�ʾ��λ��mL/g,��T��ֻ�Q��(sh��)��,��ц�λ��ȥ��

��

�ؚ�

�ؚ��΢��M�ɵĻ��c��ˮ��ЙC��Ⱦ��|��ֻ�Ͻ��|,��M��ղ��ֽ�Ĉ��,��ǻ��๤ˇ�ĺ��ġ��ؚ�ϵ�y(t��ng)��ؚ�ع��o΢��L��ֽ��ЙC��횵��,��ϔ��,��ʹ��c�ЙC��ֽ��|��ؚ�؃�,��Ҹ��Ĵ��ۿ��^�쵽��w��@�ͽ��w,��S��ЙC��Ⱦ�ﱻ�ֽ⣬�ؚ��ÿ�춼��һ��ֻ��,��@��ֽ��ʣ��,��ֱ��ų�ϵ�y(t��ng)֮��---��ء�

��B(y��ng)

��B(y��ng)��,��ÿ�쐞��22h,��o��2h��ŷ�4L�Uˮ,��ټ��4L��ˮ,��7��ɫ�ʺ�ɫ,��,��ˮ��ᣬ�y��MLSS,��SV��ֵ,��^��pHֵ��COD,��NH3-N��ț]��^��׃��,��f��B(y��ng)��ļ��^��,��14��ʜ\��ɫ,��r��ˮ��_ʼģ��u׃��߅��,��R�z�r��^�쵽��x��x,��ѿ��x,��x�ȡ��S��u׃��,��Aʾ��N��B(y��ng)��,��y��MLSS��SV��ֵ,��COD��NH3-Nȥ��ʷքe�_��43%��10%,��߀��Ҫ�^�m(x��)��B(y��ng),��˺�,��ÿ��\�Ѓ��ڣ�ÿ��ؚ�10h,��o��2h,��30��ͳ��,��Һ�o�ð�С�r��Һ�峺͸��,��ˮ��,��S��ɫ��R�z�д��;��z�F,��^��܌�,��^�쵽�S��S��x��y��MLSS,��SV��ֵ,��CODȥ��_��90%��ϣ�NH3-Nȥ��30%��,��^��,��J��B(y��ng)�A�νY��,��

�Z��

��B(y��ng)��Ļ��ຬ�д��B(y��ng)��B(y��ng)��,��к��ǳ��,��Ҫ�Mһ��M��Z��ʹ֮ռ��(y��u),��c��,��h(hu��n)��m��,��L�ͷ�ֳ�죬��һ��r�·��ܵ��Uˮ��|��Ƴ̶�Ҫ��С,��ڻ��Z��^��,��ÿ��һ��MˮCOD��NH3-N��ȡ��Z��,��CODȥ��ʞ�85.59%,��NH3-Nȥ��ʃH��23.21%��@��鮐�B(y��ng)��ռ��(y��u)��,��L��ʿ�,��r�g�L��L��,��^��,��c��B(y��ng)��̎�ڲ��λ��ʵ�,��4��,��NH3-Nȥ��@��ߣ��_��46.70%,��@�f��ϵ�y(t��ng)�е��uռ��(y��u)��,��NH3-N̎��Ч��߀��룬߀��Ҫ�^�m(x��)�Z��,��ʹ��NH3-N��ȥ��90%��,��ϵ�y(t��ng)ȡ��õ�Ó��Ч��_��Z��Ŀ��,��

����D�d��ǳ��ڂ��f��Ϣ֮Ŀ��,��Ё�Դ��ע�e�`��ַ��ĺϷ��棬Ո��߳֙��C��c��W(li��n)ϵ,��҂��r��,��h��x�x,��