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��r(sh��)�g��2014-07-15 15:54 ��Դ��h(hu��n)��̌W(xu��)��(b��o) ��: ��x��2372

��ժҪ:

��B��f¡�켈�S�Uˮ̎��̸Ľ��(sh��)��,��˅�� ˇ��ԭ��ˇ�ă�(y��u)�ݼ��\(y��n)�Р�r�c̎��ɱ��̸��첢��(sh��)��坍��a(ch��n)��,��Ⱦ��|(zh��)�ŷſ��@�p��,��ˮ�|(zh��)��_(d��)��GB18918-2002һ��A��(bi��o)��(zh��n)��M��һ��ˮ��|(zh��)��Ҫ��,��ͬ�r(sh��)�cԭ�еĺ��̎��ˇ��ȿɹ�(ji��)ʡ��s55%,��̲�ȡ��(ji��)ˮ��ʩ�󣬮a(ch��n)Ʒ��ˮ��H��7��9 m³/t,��Ч��ˮ�YԴ��,��ͨ�^�\(y��n)�Р�r��֪��෨��酒��̎��ˇ��Ʒ��㣬��^��ܽ��0.9��1.2 mg/L��l��\(y��n)��,��Ч�p��ܺ�,��ǌ�(sh��)�H��^��ą��̎��ˇ��

Ӣ��ժҪ:

The wastewater treatment reconstruction project in Wanlong Paper Mill was introduced. The operational process and treament costs were compared,�� it could be concluded that anaerobic-aerobic process was more advantaged than the former aerobic treatment process. After the reconstruction of the project and clean production accomplished,�� the effluent quality could achieve first grade discharge standard of GB 18918-2002 and the recycle requirement of reuse water. Meanwhile�� the energy costs of the new process were reduced by 55%,�� comparing with the former aerobic biological treatment technology. With the water conservation technology�� the water comsumption for per unity unit product was just 7��9 m³/t�� protecting the water resource effectively. The result indicated that as a developed post-treatment process,�� the activated sludge system was convenient to be operated,�� while the dissolved oxygen concentration was low (0.9��1.2 mg/L)�� it presents an attractive characteristic of low energy consumption.

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