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��B���f(w��n)¡�켈�S�Uˮ̎�����̸Ľ���(sh��)���������˅��� ������ˇ���ԭ������ˇ�ă�(y��u)��(sh��)�����\(y��n)�Р�r�c̎���ɱ�,�����̸��첢��(sh��)���坍���a(ch��n)��,����Ⱦ���|(zh��)�ŷſ������@�p�٣�ˮ�|(zh��)���_(d��)��GB18918-2002һ��(j��)A��(bi��o)��(zh��n),���M��һ�����ˮ���|(zh��)��Ҫ��,��ͬ�r(sh��)�cԭ�еĺ�������̎����ˇ��ȿɹ�(ji��)ʡ��(d��ng)���s55%�����̲�ȡ��(ji��)ˮ��ʩ��,���a(ch��n)Ʒ��ˮ��?j��)H��7��9 m3/t,����Ч������ˮ�YԴ���ġ�ͨ�^(gu��)�\(y��n)�Р�r��֪�������෨���酒����̎����ˇ�������Ʒ���,���������^���ܽ�����0.9��1.2 mg/L���l�����\(y��n)��,����Ч�p�����ܺģ��nj�(sh��)�H�������^������ą�����̎����ˇ,�� |
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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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