��ˮ̎��S��ϵ�y(t��ng)�x�ͼ��

��r�g��2007-12-21 16:29 ��Դ�� : ��x��2887

�ؑc��ˮ̎��S�OӋ��̎��ˮ��5�fm³��d,��2000��12�½��Ͷ��ԇ�\�У��õ��Ǹ��Ϲ�ˇ,��]��ˇ,��ؑc��ˮ�r�ϝq��齵�ͳ��оG��ˮ�ɱ��ͱ��o��꽭ˮ�|,��ˮ̎��S��b��,��2002��3�°��b�{(di��o)ԇ��ɣ�Ͷ��ʽ�\��,��
�� g�ǻ��ڬF(xi��n)��ߌW,��t(y��)�W�͹��W�Ļ��A�ϣ��OӋ�ĸ�Ч�ʡ��ߏ��Ⱥ��L��C��ˮ,��ˮ�и��N��,��x,��ˮ��Լ��ԭ�wֱ�Ӛ��,��_��Ŀ�ġ�Ŀǰ,��ѽ�(j��ng)��b�\�еĴ��ˮ̎��S��b��4000��,��У��m��Ŭ��ˮ̎��b��,��̎��121�f��2001��7�£�,��

1��ϵ�y(t��ng)��B

1.1��ԭ��

����⾀�֞��Ă��ͬ�Ĳ��Σ�UVA��400��315nm��UVB ��315��280nm��,��UVC��280��200nm��⾀��200��100nm��,��͸�^��o�Ӻ��ƌӵ��_��ֻ��UVA�� UVB��֡��͚��ٶȶ��,��UVC̎��΢��շ巶��֮��(n��i)��Ҋ�D1��,��1s֮��(n��i)ͨ�^�Ɖ�΢��DNA�Y��ͼ��UVA��UVB�� ̎��΢��շ巶��֮��,��ٶȺ��,��Ҫ��(sh��)С�r��𵽚��ã��ڌ��H��̵Ĕ�(sh��)��ˮ��ͣ��䣩�r�g��(n��i),��ԓ��֌��H�ό��ڟoЧ��ⲿ��,��⴩͸��O��ܺ��׹��Ҫ��ØO��͸��ʵ�ʯӢ,��һ��ð댧�w�ИI(y��)��ˮ�е�TOC,��ښ��,��o��ˮ��f��H�Ͼ��ָUVC��,��
��Ŀǰ�܉�ݔ��UVC��ڹ��ֻ��˹��Ͻ𣩟��Դ��(j��)�c��ğ��܃�(n��i)��≺�Ĳ�ͬ��UVݔ��ȵĲ�ͬ,��֞��N��͉��͏��ȹ��,��Љ��ߏ��ȹ��͵͉��ߏ��ȹ��N��Դ�Ĳ��V�DҊ�D2��D4,��

��Ч��΢��ܵ��䄩��Q��,��
��䄩��J��m²��r�g��s��×UVC��ȣ�W��m²��
��䄩��Խ��Ч��Խ��,��O��ߴ�Ҫ��,��һ��r�gֻ�Ў��,��ˣ��ܵ�UVCݔ��Ⱦͳ��˺��O��Ҫ�ą��(sh��),��ڳ��ˮ��,��һ��ƽ��䄩��300 J��m²�� ϡ��ڴ�ֵ,��п��ܳ��F(xi��n)��ͻ�F(xi��n)��,��ܱ��صך��ܿ�Ҋ��,��ͻ�,��˚��Ч��Ч��Ҫ��Խ��,��䄩��Խ��,��Ӱ�΢��ܵ��䄩��Ҫ��͸��ʣ�254 nm̎��UVCݔ��Ⱥ��r�gһ��r,��͸��ʵ�׃��΢���H��܄��׃��,��

1.2��ϵ�y(t��ng)��
��ˮ̎��Sʹ�õ��ϵ�y(t��ng)��Ҫ��1��(zh��n)��ɵ��ϵ�y(t��ng)��2��cPLC��ɵČ��r�{(di��o)��(ji��)ϵ�y(t��ng),��3��Ԅ��ϴϵ�y(t��ng)�ͣ�4��ϵ�y(t��ng),��

2��O��x��
����Ŀǰ��(n��i)��b��UVC��ˮ̎��b��^�٣��S��Ñ��OӋ�ˆTȱ��O��x�Ľ�(j��ng)�,��҂�ͨ�^��ˮ̎��SUVC��b�õ��x��Լ��S��đ��о�,��e��һ��Ľ�(j��ng)򞣬�J�鑪ԓ��cע��4��,��

2.1��ܵ��x��
�� ɂ��,��һ�ǆ�֧��ܵ�UVCݔ��Խ��,��Ҫ�ğ��ܔ�(sh��)��Խ��,��Ͷ�Y��\�оS�o�M��Խ�͡��ĈD2��D4��Կ��,��ߏ��ȹ��ݔ��ȸ�,��(y��u)�ڵ͏� �ȹ��UVC늹��D�QЧ�ʣ�253.7 nm��,��@�ַփɂ��Ӵ�,��һ�ǟ��ĵ��D�Q��ܵ�Ч�ʣ��ǹ��253.7 nm��L��UVC��ռ�ı��,��ĈD2��D4��Կ��,��͉��ݔ��Ҫ��253.7 nm��Љ��ݔ��Ҫ��366 nm,��Љ��l(f��)��ܴ�,��Mһ��M,��ˣ��͉��ߏ��ȹ��늹��D�QЧ�ʸ��Љ��ߏ��,��UVC��ϵ�y(t��ng)��늹��D��Ч�ʸ��_42��,�� ⣬��x��|��^�L�ğ��,��

2.2��r�{(di��o)��(ji��)ϵ�y(t��ng)��x��
��ˮ̎��Sˮ��,��ˮ�|��^�� M��UVCݔ��ȵČ��r�{(di��o)��(ji��)��(ji��)�s늺ĺ��L��܉��x�ش�,��@��Ҫͨ�^��ܵĿ�׃ݔ��͂��挍��팍�F(xi��n),��͂��M��挍��ԣ��λ�úͲ��L��x��ԘO��Ҫ,��Щ�a(ch��n)Ʒ�Ă��ܺ�ʯӢ�׹�֮�g,��̖�]�а��ˮ��͸��׃��r��,��һЩ��Ĳ��L�x�� ,��y��⏊��߀��˳�253.7nm֮��L��⡣��挍��΢���H��ܵ�UVC��䏊�ȵĂ��Ƿ��ˮ�У��c΢��̎��ͬһλ�ã�,��ֻ�O(ji��n)�y253.7nm��L��,��ˮ̎��S��õ��@�N��͉��ߏ��ȹ��50��100��ķ��(n��i)��Ԍ��F(xi��n)늺��cUVCݔ��ľ��Ԅ��{(di��o)��,��

2.3��Ԅ��ϴϵ�y(t��ng)��x��
�� ˮ̎��S��ϵ�y(t��ng)��ϴϵ�y(t��ng)��˹��ϴ,��ԄәCе��ϴ��Ԅӻ��W��ϴ��N��˹��ϴҪ�Д��,��,��r�דp��ܣ��g��r�g�L��Ԅ��ϴһ��1��2�Σ�С�r��,��o��CʯӢ�׹��;C��͸��,��ˣ��O��e��r��,��O��ʹ��,��Ԅ��ϴϵ�y(t��ng)��x��c��ʹ�õğ��P��Љ��ߏ��ȟ��,��ض��600��900��֮�g,��Y��أ��횲��ÙCе��W��ϴ,��ڵ͉��ߏ��ȟ��,��ضȵ��110��Y��ٶȶ��h�h��Љ�� ,��1��2�Σ�h��ϴ�l�ʃ�(n��i),��γɽY��,��B�m(x��)10��µČ��H�\�нY��Ҳ�C��@һ�c��

2.4��Ⱦ��¹��Ⱦ
�� \�Еr�Ķ��Ⱦ��Ի��W��ϴϵ�y(t��ng)�е��ϴ��,��¹��r�µĶ��Ⱦ�l(f��)��ڟ��Ɠp�r��M��ˮ��,��Լ�Һ��ӵ��Ԅ��ϴϵ�y(t��ng)�l(f��)��й©��ˮ̎��S�x�õĹ��ʹ�õ��ǹ̑B(t��i)��Ͻ�,��̶�ճ��ڟ��܃ɶ˵�ͻ��c,��Ɠp�r��Һ�B(t��i)��ǘ��ˮ�У��ճ��Ͻ��ʯӢ��Ƭ��Ƴ��,��о�� ԓ��Ͻ��ˮ��L�ڽ��ݺ�ˮ�й��ı��ם��δҊ��,��⣬ԓϵ�y(t��ng)��É��s�՚��ԄәCе��ϴϵ�y(t��ng),��\��g��¹�й©��ɶ��Ⱦ�Ć��},��

3��ľ��

���c��ˮUVC��Ŀǰ��UVC��ˮ��ϵ�y(t��ng)��b�ڷ��m�ĺՠ��18.8�fm³��d��ͬ��,��ˮ��SS��Ӱ�,��y��Ͷ�Y��S�ķ��(n��i)�_��ǳ��˜ʡ�Ŀǰ,��ֻ��һ��O��̵Įa(ch��n)Ʒ�õ��˵��ˮ��Ø˜�Title22 of the California Code of Regulations��J��,��ԓ�˜�Ҫ�󿂴��c��ֵС��2.2TC��100mL��

4��O(ji��n)�y�Y��

��ˮ̎��S�M,��ˮ�OӋ�S��c��ֵ��10⁶��10⁸FC��100 mL,��y�׺�ƽ��ֵС��20FC��100mL��Ҋ��1��O(ji��n)�y��ö�ܰl(f��)�ͷ�,��

��1 ��ˮ̎��S��ϵ�y(t��ng)�O(ji��n)�y�Y��

�·�	ƽ��M�ڝ�� ×10⁵ FC/100mL��	ƽ��ڝ�� FC/100mL��	�·�	ƽ��M�ڝ�� ×10⁵ FC/100mL��	ƽ��ڝ�ȣ�FC/100mL��
3	9.1	18	7	11	20
4	8.4	12	8	21	32
5	8.9	11m	9	7.8	15
6	4.3	16	10	11	17

5��\�гɱ�

��b�ÿ��b�C��47.3KW,��
��\��M�ú�Ӌ��0.018Ԫ��m³��У�
��Դ��M�� 0.0098Ԫ��m³^��ܸ��Q�M�ã�0.0086Ԫ��m³^��H�ܺģ�0.02kWh��m³�C��늃r��0.49Ԫ��kWh ��

6��YՓ

��1��ڳ��ˮ��̎��ˮ��ԝM��Ŀǰ��(n��i)��^��G��ˮҪ��,��
��,��2��ԓ��g��Пo��Ⱦ��c��ǰ��V�,��
��,��3��ܺĵ�,��\��M�õ�,��Ԅӻ��̶ȸߣ��S�o��,��
��,��4��O��x�÷��棬�͉��ߏ��ľC�ϼ��g��(j��ng)��ָ�˃�(y��u)��Љ��ߏ��,��

��īI��
��[1] Liberti L, Lopez A, Notarnicola M, et at. Comparision of advanced disinfection methods for municipal wastewater resue in agriculture[J]. Water Sci. Technol, 2000, 42(1-2): 215-220
��[2] Lindenauer K G, Darby J L. Ultraviolet disinfection of wastewater: Effect of dose on subsequent photoreactivation[J]. Water Res, 1994, 28,: 805-807
��[3] Log F J, Darby J L, Tchobanoglous G, et al. Ultraviolet disinfection for wastewater resue[M]. Lancaster, Pa.: Technomic Publishing Co. Inc., 1998
��[4] ꐽ�, �f�L��, ��ռ, �Ƿ�, �S��. ��g�ڽo��ˮ�еđ��. �Ї��oˮ��ˮ. 2002. 18.(7): 29-31