��x��;۱�ϩ��߾��ĺϳɼ��Ч��о�

��r�g��2014-03-10 18:44 ��Դ��һՓ�� : ��x��2241

Փ��ߣ�� \ ��V��

ժҪ��Ȳ��һ��ϳɳ�DMDAACˮ��Һ,��ἃ��ˮ��Һ��ɻ��ۺϷ�ʽ�c��ϩ��(AM)��x��;۱�ϩ��Ԫ��,��ڷ��^��̽ӑ��AM�cDMDAACĦ��Ȍ��ۺϷ�� Ӱ� ,��ͨ�^�� о� ��ԓ��x�Ӹ߾����͏Uˮ�ĳ��Ч��

�P�I�~��x�Ӿۺ�� ׻��ϩ��Ȼ��@ �۱�ϩ��߾�� Ч��

��׻��ϩ��Ȼ��@(DMDAAC)�c��ϩ��(AM)�Ĺ��۱�ϩ��߾��(P(AM-DMDAAC))��һ�N��x��ЙC�߷��,��늺��ܶȸ�,��ˮ��Ժã��ڿ��,��r��ȃ�(y��u)�c,��ˮ̎��I��еõ�Խ��Խ�V��ҕ�� [1]��⣬P(DMDAAC-AM)߀��̎��ˮ�V�{�Լ��xú�V�Uˮ�еđҸ��,��̎��Ч��^�ˆΪ�ʹ�ö��׻��ϩ��Ȼ��@��(PDMDAAC)��۱�ϩ��(PAM),��@�N�ۺ��߀��V��õ�ʯ��_�ɡ��켈,��ɵV,��ӡȾ��û��I��[1��3]��

��Ⱥϳɳ�DMDAAC��Һ,��ͨ�^�p��s��ἃ��ˮ��Һ��ɻ��ۺϷ�ʽ,��EDTA��ۺ��^��l(f��),��ʹDMDAAC��AM��۳�P(AM-DMDAAC),��ڷ��^��о��AM�cDMDAAC��Ħ��Ȍ��ۺϷ��Ӱ푡��ͨ�^��򞌦P(AM-DMDAAC)̎�ퟒ�͏S�UˮЧ��M��о�,��

1 ��x��,��Ϻ� ��

1.1 ��x��

501�ͳ��;ͨ��b��;D-7401-��늄Ӕ��;ZK-820��ո��;��ճ��Ӌ(��̖4 mL��0.6 mm);��,��

1.2 ԇ ��

��װ�,��ȱ�ϩ��AM��Һ( ��I(y��) Ʒ,��Ȟ�40%),��^��⛡�EDTA,��y,��t��⛣��Ͼ��AR��,��oˮ�Ҵ�,��ͪ��NaCl,��NaOH,��CP��

1.3 DMDAAC�ĺϳ�

��b�Д��,��,��ض�Ӌ�ͼ��©��250 mL�Ŀڟ�ƿ��ڵ��20 ��ĺ��ˮԡ�У��һ��Ķ��װ��_ʼ��,��ͬ�r�μ��ἃ��ȱ�ϩ��NaOH��Һ,��pH��9.5��10.5��ڼ��붨��NaOH��Һ��ȱ�ϩ��,��ػ��ȫ,��õ��ĮaƷ�o�ú�ͨ�^�^�V��Y��NaCl��w��ȥ��VҺ�D�Ƶ�250 mL��ƿ��,��NaOH��Һ�{pH��10��,��Ȼ��p��s��ȥδ��ԭ�ϼ��a��^�V��õ��ĞVҺ��Ǽ��^�ߵ�DMDAAC��Һ,��

1.4 P(AM-DMDAAC)�ĺϳ�

��150 mL��ڟ�ƿ��,��һ��ȼ��AM��DMDAAC��Ҫ�r��붨��ۺ��,��ټ��sˮ(��ȥ�x��ˮ)ϡ��,��ͨN2 0.5 h��Ȼ��붨��l(f��)��,��ں��ˮԡ��,��ۺ�5 h��ֹͣ��

1.5 COD�y��

�y��ԭ��ȡ3.0 mL�u��Ĵ��yˮ��ڷ��,��μ��һ��ڱ΄�,��1 mL��Ȼ��ֱ��ټ��5.0 mL�߻��ʹ��Һ,��Ȼ�󌢷��ܷ��TL-1A��COD�ٜy�x��,��165 ��·��10 min��Ȼ��M�п՚��s,��м��sˮ3.00 mL,��w��u��ڲ��L610 nm̎,��ˮ�酢��,��y��Һ��(A)��c��COD�˜��CODֵ,��

COD�˜��Qȡ0.8502 g��,��sˮ��Ɲ��ஔ��COD 1000 mg/L�Ę˜�Һ��Ȼ��֪��ȵ�һϵ��ԇ��(6��),��քe�y��A,��LA�c��COD�˜��Y��D1��ʾ,��

�D1 ��cCOD��Pϵ��

�D��Pϵʽ�飺Y=0.003945+0.0002139X; r=0.9999

ʽ�У�Y��;X��COD(mg/L);r��Pϵ��,��

1.6 �ͺ��y��

�y��ԭ��ȡһ��ԇ�ӣ��ʯ��ȡ��ݺ�,��225 nm��L��,��y��,��

�͘˜��50 mL��ƿ�м��m��˜��Һ(��Ȟ�0.1 mg/mL),��ʯ��Ѷ��ݣ��һϵ��֪�͝�ȵ�ԇ��(5��)�� 225 nm̎,��10 mmʯӢ��ɫ��,��y��A��հ�У��,��͞�M��,��A��v��ˣ��L�Ƙ˜��,��Y��D2��ʾ,��

�D2 ��c��˜��

�D��Pϵʽ�飺Y=0.001948 + 0.02592X; r=0.999946

ʽ�У�Y��;X��(mg/L);r��Pϵ��

2 �Y��cӑՓ

2.1 DMDAAC��ʼ��Ȍ�AM-DMDAAC��۷�� Ӱ�

��Ƶ�DMDAAC��Һ�c ��I(y��) ƷAM��Һ��Ħ��1:1��,��sˮ�{��(ji��)DMDAAC��ʼ��,��l��׃��DMDAAC��ʼ��Ȍ�AM-DMDAAC��۷��Ӱ�(Ҋ�D3),��l��r�ǣ��^��⛝�Ȟ�1%;EDTA��Ȟ�200×10-6;�ۺϜضȞ�50 ��,��

�D3 DMDAAC��ʼ��Ȍ�DMDAAC-AM��۷��Ӱ�

�ɈD3��S��DMDAAC��ʼ��ȵ��,��P(AM-DMDAAC)�ۺ��ճ��Ҳ�S֮��u��,��Ȼ��о��½��څ�ݣ��55%��һ��ֵ;��x�ӶȄt��u�½�Ȼ��,��@��DMDAAC��ʼ��^�͕r,��AM�cDMDAAC��ײ�ۺϵęC��^С;��DMDAAC��w�e�^��֮�g��׾ۺ�,��˵õ��ľۺ��x�Ӷ��^��;ͬ�rDMDAAC��װl(f��)��D��,��ճ��^�͡��S��DMDAAC��ʼ��ȵ��,��AM�M��朵Ď��׃��,��AM�ĸ߻��ʹ��^�L��ճ��,��ͬ�rDMDAAC�M��朵Ď��ʽ��,��x�Ӷ��½��DMDAAC��ʼ��^�m(x��)��r,��wϵ׃��^ճ��,��AM��\�Ӝp��M��еĎ��ֽ��,��ճ��½�څ��,��x�ӶȄt��ߡ�

2.2 ��DMDAAC��AM-DMDAAC��۷��Ӱ�

��AM�cDMDAAC�Ĺ��۷��^��,��׃��DMDAAC�ĺ��,��Ħ��ȏ�0%��100%׃��,��Ȼ��Ȟ� 200×10-6��EDTA��1.0%��^��,��35 ��M�з��,��Y��D4��ʾ��

�D4 ��DMDAAC��DMDAAC-AM��۷��Ӱ�

�ɈD4��Կ��,��S��DMDAAC��,��x�Ӷ��u��ճ�ȅs��u�½�,��ÿ��DMDAAC��һ��늺�,��S��京��x�Ӷ��u��;��AM��DMDAAC�ĸ��ʲ�ͬ��AM�ĸ��ʞ�6.7,��DMDAAC��0.58,��AM��^��ۺϻ��^DMDAAC��ö�,��Ԯ��L�ĩ�˞�AM��ɻ��r,��L��^��ճ��;��L�ĩ�˞�DMDAAC��ɻ��r,��D�ƻ�Kֹ,��^��ճ�Ƚ��͡�DMDAAC��^�͵Ļ��,��ʹ��x�ӶȺͷ��ɼ��,��

2.3 P(AM-DMDAAC)�ۺ��̎�ퟒ�͏Uˮ��Ч�� о�

��͏Sÿ��ŷŴ��͏Uˮ��Ⱦ��|��Ҫ��,��,��ȣ��@��|��M��̎��Ԫ,��Ɖ��\��,��ˑ��@֮ǰ��Ⱦ��|��ȥ��ԇ��P(AM-DMDAAC)�ۺ��ĳ��Ч��,��ԇ�ˮ��ȡ�ԝ��ϟ��͏S�Uˮ̎��܇�g�ĸ��ͳس�ˮ,��y��ˮ�ӵ�pH ��7.6,��COD��234.0 mg/L,��͏Uˮ��ʯ��ȡҺ��ղ��L��225 nm��ԭˮ�ڴ˲��L�y��ͺ��93.57 mg/L,��

�ɈD5��Ҋ,��P(AM-DMDAAC)�ۺ��Ͷ��Ч��Ӱ��^��S��Ͷ��,��Uˮ��ͺ��Ѹ��½�,��½��ٶ��u��,��׃��^ƽ��P(AM-DMDAAC)��Ͷ��^��r,��ͺ��߬F(xi��n)��,��ʬF(xi��n)��Ͷˎ��^խ,��@��Ͷ��^��,��۳��F(xi��n)��ٷ�(w��n)��F(xi��n)��P(AM-DMDAAC)�ĳ��Ч��@��ڮ�ǰ�ձ� �� PAM��,��@��P(DMDAAC-AM)��ճ��Ӳ��r��x�Ӷ��^��[3��4],��

P(AM-DMDAAC)�ۺ��CODЧ��S��Ͷ��ˮ��COD��Ҳ��u�½�,��_��c��u��,��ˮ��COD��ߣ��Ͷ��^��·�(w��n)��,��߀��^��ľۺ��a��~��COD[5],��D6�͈D5��տ��԰l(f��)�F(xi��n)��COD��׃��c�ͺ��׃��,��@�f��͏Uˮ��COD��Ҫ��Է�ɢ��ˮ�е��,��ʹ�ͺ��͵ľۺ��һ��Ҳ��ʹCOD��^�͡�

�D5 PAM ��P(AM-DMDAAC)�ĳ��Ч�� D6 PAM ��P(AM-DMDAAC)�ĳ�CODЧ��

�� PAM [η]=9.08 dl/g;

P(AM-DMDAAC) [η]=8.00 dl/g ��x�Ӷ�=16.2%;

P(AM-DMDAAC) [η]=697 dl/g ��x�Ӷ�=36.2%

3 С �Y

ͨ�^һ��Ⱥϳɳ�DMDAAC,��Ȼ��ͨ�^��ɻ��ۺϷ�ʽ�cAM��۷��P(AM-DMDAAC)��,��Ч��˱��^��Y��,��AM�cDMDAAC��Ħ��Ȍ��ճ�Ⱥ��x�Ӷ��кܴ�Ӱ�,��S��DMDAAC��󣬺��^��ճ�Ƚ��,��x�Ӷ��,��DMDAAC��^�͵Ļ��ԣ�ʹ��x�ӶȺͷ��ɼ��,��̎�팦��r�x��m��AM�cDMDAACĦ��,��ͨ�^��Ч��C��P(AM-DMDAAC)��б�PAM��PDMDAAC��õĳ��Ч��

�� īI

1 �w�A��,��ߌ��,��J�G.��׻��ϩ��Ȼ��@(DMDAAC)�ۺ��о��Mչ.��I(y��)ˮ̎��1999,��19(6)��1��4

2 ��ƽ.��ϩ��ۺ��ƺ��ʯ��_��еđ��.��ﻯ�W,��1991��8(3)��194��199

3 ��A��,��̘�܊,�� ,��.�߷��x��ڟ��͏Uˮ̎��о�.��ܸ߷��ӌW��1996,��9(4)��544��549

4 Kerr E M,��Ramesh M.Method for dewatering coal tailings using DADMAC/vinyl trialkoxysilane copolymers as a coagulant. US patent��5��476,��522(19 DEC 1995)

5 �� ,�� Ұ��n��.�۶��׻��ϩ��Ȼ��@�ĺϳɼ�ˮ̎��о�.�h(hu��n)�� ƌW �W��,�� 2000,��20(2)��168��172

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