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��r�g��2009-02-27 15:59 ��Դ�� : ��x��23318

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1 ��

��m��BOD5 ��ڻ��2mg/L,��Ҳ��^6000mg/L ��ˮ�ӡ�BOD5 ��6000mg/L��ˮ��Կ��ñ��,��ϡጕ��`��,��б�ҪҪ�󌦜y��Y��ص��f��

��ԇ�õ��ĽY��ﻯ�W�ͻ��W��ù�ͬ�a(ch��n)��ĽY��,��һ��,��_��x�Ļ��W�^��ǘӾ��Ї��_��ԣ��ṩ��u�r��Nˮ��|��ָ��,��

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2 ��x

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3 ԭ��

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��ڶ��(sh��)ˮ��к��^��|��ס��^ˮ�п��õ��ܽ��(DO)��,��B(y��ng)ǰ�茦ˮ��M��ϡ�,��ʹ��B(y��ng)��ʣ��ܽ��(DO)��Ҏ(gu��)��

һ��ˮ�|�z��yBOD5,��ֻ��̼��|�ĺ��͟o�C߀ԭ��|�ĺ��,��Еr��Ҫ�քe�y��̼��|��õĺ��,��õą^(q��)�e��̼�͵��ķ��B(y��ng)ƿ��Ͷ��Ƅ��m��Ƅ��,��y��ĺ��,��麬̼��|�ĺ��5 ��B(y��ng)�r�g��,��õĺ��,��ȡ�Q��Ƿ��(sh��)��M�д˷N��õ�΢��ԭ��ˮ��̎��ĳ�ˮ��,��@�N΢��Ĕ�(sh��)��,��@��߀ԭ�Ե��S��̎��ĳ�ˮ��Ⱦ�^�õ�ˮ�w��,��д��΢��,��˜y��@�Nˮ�ӕr��

�ڜy��BOD5 ��ͬ�r,��Ǻ͹Ȱ��˜��Һ��Cԇ�,��

4 ԇ��

��r��ֻ��ù��J�ķ��ԇ��sˮ��ͬ�ȼ��ȵ�ˮ(��ȫ��b��s��ˮ��ȥ�x��ˮ),��ˮ�к��~��0.01mg/L,��ȡ��,��,��ԉA�ЙC���

4.1 �ӷNˮ

��ԇ��Ʒ��ĺ��m��΢��,��֮һ�ԫ@�ýӷNˮ

a. ��ЏUˮ,��ȡ��ˮ�ܻ�ȡ�ԛ]��@��I(y��)��Ⱦ��סլ�^(q��)��ˮ�ܡ��@�Nˮ��ʹ��ǰ��A��Һ��,��

b. ��1L ˮ�м��100g��@��,��ϲ��o��10min��ȡ10mL��Һ��ˮϡ��lL,��

c. ��г��ˮ�ĺ�ˮ��ˮ

d. ��ˮ̎��S��ˮ

e. ��ˮ�Ӟ麬�y��|�Ĺ��I(y��)�Uˮ�r��ȡ�Դ��ˮ�ŷſ��μs3~8km ��ˮ��΢��m��ڴ��ˮ��(j��ng)��B(y��ng)�^��ˮ,��

4.2 �}��Һ

��Һ��ٿɷ�(w��n)��һ��,��A��ڲ��ƿ�ȣ��ڰ�̎,��һ��l(f��)�F(xi��n)��L�E��t��ȥ��,��

4.2.1 ��}��_��Һ

��8.5g ��(KH2PO4)��21.75g ��(K2HPO4),��33.4g ��ˮ��c(Na2HPO4 7H2O)��l.7g �Ȼ��@(NH4Cl)��ڼs500mLˮ��,��ϡ�1000mL��Ͼ��,��

�˾��_��Һ��pH ��7.2

4.2.2 ��ˮ��V22.5g/L ��Һ

��22.5g��ˮ��V(MgSO4 7H2O)��ˮ�У�ϡ��1000mL��Ͼ��,��

4.2.3 �Ȼ��}27.5g/L ��Һ

��27.5g �ğoˮ�Ȼ��}(CaCl2)(��ˮ��Ȼ��}Ҫȡ�ஔ?sh��)��?��ˮ,��ϡ��1000mL��Ͼ��

4.2.4 ��ˮ�Ȼ��F(III) 0.25g/L ��Һ

��0.25g��ˮ�Ȼ��F( )(FeCl3 6H2O)�ܽ��ˮ�У�ϡ��1000mL��Ͼ��

4.3 ϡ�ˮ

ȡÿ�N�}��Һ(4.2.1 4.2.2 4.2.3 ��4.2.4)��1mL,��s500mLˮ��,��Ȼ��ϡ��1000mL��Ͼ��򡣌��Һ��20��º��,��ؚ�1h��,��ȡ��N��ʩʹ�䲻��Ⱦ��؄e�ǲ��ЙC��|��,��߀ԭ��|��Ⱦ,��h��É��s�՚�ƿ��ÿ՚ⲻ�c�κΝ��ͽ��|�ĉ��s�C(��Ĥ�É��s�C)��՚��ǰ��^�V��ϴ��_��ܽ��Ȳ��8mg/L,��

��Һ��5 ��ó��^0.2mg/L

��Һ��8h ��ʹ��

4.4 �ӷN��ϡ�ˮ

��(j��)��Ҫ�ͽӷNˮ�ā�Դ,��ÿ��ϡ�ˮ(4.3)�м�1.0~5.0mL �ӷNˮ(4.1) ��ѽӷN��ϡ�ˮ�ڼs20��±��8h��M�瑪��,��

�ѽӷN��ϡ�ˮ��5 ��(20 )��ÿ��0.3~1.0mg ֮�g

4.5 �}��(HCl)��Һ��0.5mol/L

4.6 ��c(NaOH)��Һ��20g/L

4.7 ��c(Na2SO3)��Һ��1.575g/L,��Һ��(w��n)��ÿ��

4.8 ��ǹȰ��˜��Һ��

��һЩ�oˮ��(C6H12O6)��һЩ�Ȱ��(HOOC-CH2-CH2-CHNH2-COOH)��103�¸��1h��ÿ�N�Q��150mg,��sˮ��,��ϡ��1000mL��Ͼ�� Һ��R��ǰ��

5 �x��

ʹ�õĲ��Ҫ�J��ϴ,��ж��Ļ��ɽ��Ļ��,��ֹմ�ۡ��õČ��O��

5.1 ��B(y��ng)ƿ: ��ƿ��250~300mL֮�g,��ĥ�ڲ��,��й�ˮ��õ��ο��ֱ��ġ�

5.2 ��B(y��ng)��ܿ��20±1��

5.3 �y��ܽ��x��ܽ��Ĝy��ɲ��õ��(GB 7489-87)

5.4 ��ژ�Ʒ�\ݔ��A�ص��ֶ�(0~4�� )

5.5 ϡ��ƿ,��̶Ⱦ��_��,��ݷe��Сȡ�Q��ʹ��ϡጘ�Ʒ��w�e��

6 ��Ʒ��A��

��Ʒ��M��ܷ��ƿ��,��2~5�汣�浽�M�з��r,��һ�㑪�ڲɘ�6h ֮��M�Йz򞡣��h��x�D�\,��κ��r��A��Բ��ó��^24h,��

��ƷҲ��A��

7 ��E

7.1 ��Ʒ�A̎��

7.1.1 ��Ʒ��к�

��Ʒ��pH��6~8 ֮�g��Ϊ�ԇ򞣬�_��Ҫ�õ��}��Һ(4.5)��c��Һ(4.6)��w�e,��к͘�Ʒ,��Пo��γɡ�

7.1.2 ��x�Ȼ�Y��ȵĘ�Ʒ

��w�e�ā��c��Һ(4.7),��ʹ��Ʒ��ȺͽY��ʧЧ,��ע��^��

7.2 ԇ�ˮ�ӵĜʂ�

��ԇ��Ʒ�ض��s20��,��Ȼ��ڰ��M��ȓu�Ә�Ʒ,��Ա��ܴ��ڵ��^��

��֪�w�e��Ʒ��ϡ��(5.5)��,��ϡ�ˮ(4.3)��ӷNϡ�ˮ(4.4)�,��p�p�ػ�ϣ��A�s�՚��,��ϡጱ��(sh��)�Ʌ��±�

�y��BOD5 �r��hϡጵı��(sh��)

�� R ��ˮ
E ��^��ˮ
S ��^��ˮ��p��Ⱦ�Ĺ��I(y��)�Uˮ
C ԭ��ˮ
I ��Ⱦ�Ĺ��I(y��)�Uˮ

��õ�ϡጱȴ��100,��փɲ��ײ��M��ϡጡ��Ҫ��,��t��ATU��TCMP ԇ��,��

��ֻ��Ҫ�y��ЙC�ｵ��ĺ��΢��Ա��⵪��,��Ŀ��ÿ��ϡጘ�Ʒ�м��2mL ��Ȟ�500mg/L��ϩ��(ATU) ,��(C4H8N2S)��Һ��һ��Ĺ̶��Ȼ��c(NaCl�ϵ�2-�ȴ�6-��ȼ׻��(TCMP)(C1 C5H3N CCl3) ʹTCMP ��ϡጘ�Ʒ�Н�ȴ�s��0.5mg/L��

ǡ��?sh��)�ϡጱȑ�ʹ��B(y��ng)��ʣ��ܽ��1mg/L ��ĵ��ܽ��2mg/L,��
��y�ڴ_��ǡ��?sh��)�ϡጱȕr,��Ȝy��ˮ�ӵĿ��ЙC̼(TOC)��t��}��W��(COD)��(j��)TOC ��COD��ӋBOD5��ֵ,��ه��@�A�ڵ�BOD5ֵ,��׷N��ͬ��ϡጱȣ��Üy��Y��xȡ�Ϻ�Ҫ��l��,��

7.3 �հ�ԇ�

�ýӷNϡ�ˮ(4.4)�M��ƽ�пհ׌��y��,��

7.4 �y��

��õ�ϡጱ�(Ҋ7.2)�ú��ܳ�M�ɂ��B(y��ng)ƿ��
��и��ƿ��ϵĿ՚��s��,��w��ƿ�wС�ı��A�՚��,��
��ƿ�ӷ֞��M��ÿ�M��һƿ�x��ϡጱȵ�ϡ�ˮ�Ӻ�һƿ�հ��Һ(Ҋ7.3),��

��һ�Mƿ��B(y��ng)��(5.2)��,��ڰ��з��5�졣

��Ӌ�r��c�r,��y��һ�Mƿ��ϡ�ˮ�ӺͿհ��Һ�е��ܽ��ȡ�

�_��Ҫ��B(y��ng)��5 ��r�g�r��y��B(y��ng)��ǽMϡ�ˮ�ӺͿհ��Һ��ܽ��,��

7.5 ��Cԇ�

��˙z�ӷNϡ�ˮ,��ӷNˮ�ͷ��ˆT�ļ��g��M��Cԇ�,��20mL ��-�Ȱ��˜��Һ(4.8),��ýӷNϡ�ˮ(4.4)ϡ��1000mL��Ұ��7.4 �Ĳ��E�M�Мy��,��

�õ��BOD5 ��180~230mg/L ֮�g,��t��z��ӷNˮ��Ҫ߀��z��ˆT�ļ��g,��

��ԇ�ͬԇ��Ʒͬ�r�M��,��

8 �Y��Ӌ��