ɽ�|��֥��F(tu��n)��޹�˾(UASB)̎��ߝ��ЙC�Uˮ

��r�g��2008-12-17 17:12 ��Դ�� : ��x��1976

1�Uˮ̎��ˇ��

�ƾ��Һ��(j��ng)��ɰ�س�ɰ��M(j��n)�й�Һ��x,��x��ľ��ϣ��Uˮ�M(j��n)��{(di��o)��(ji��)��,��ۏUˮ��(j��ng)��(f��)��,��(��Ҫ�鵰�׷�)�ð�򉺞V��ɳ��,��Uˮ�M(j��n)��{(di��o)��(ji��)��c�ƾ��Uˮ��,��{(di��o)��53��±2�棬�ñ��UASB��(y��ng)��,��a(ch��n)��Ӛ�ݔ��늏S��偠t��o��ȼ��,��ˮ��(j��ng)��M(j��n)��m(x��)(��ϵ�y(t��ng))��̎��s�؝�s,��ð�򉺞V,��\��r(n��ng)�ʡ�

2��ʽ��ല(UASB)�ęC��

��ʽ��ല��w��һ��o��ϵĿ��,��(n��i)�bһ��(sh��)��ą��(�N��),��(y��ng)��ϲ��O(sh��)��һ��——Һ——�̷��xϵ�y(t��ng)�Q��x��(n��i)�֞��^(q��),��x��²��Ƿ��(y��ng)�^(q��)(Ҳ�Q�l(f��)�ͅ^(q��)),��ϲ��ǳ��^(q��)��ڷ��(y��ng)�^(q��)�в��(j��)��ķֲ��֞��(Ҳ�Q��ല)�c�Ҹ��,��

        ��(y��ng)��B(t��i),��Uˮ�ñ��}�_�l(f��)��һ��Է��(y��ng)��ײ��M(j��n)�뷴��(y��ng)��ͨ�^��,��Һ�c��w��Գ�ֽ��|��M(j��n)��ｵ��a(ch��n)��Ӛ�,��ˮ��Ӛ��γ��õ��Ȼ��裬��ʹһ��ڷ��(y��ng)�^(q��)��ല�Ϸ��γ��ϡ��Ҹ��,��,��ˮ,��Ļ��Һ��x��(Ѿ�ͽY(ji��)��(g��u))��(n��i)��w��x��ķ��r��,��ˮ�t�M(j��n)��ϲ��^(q��),��£�ˮ�c��x,��ڳ��^(q��)�²��ط��x��б�ڷ��ص��(y��ng)�^(q��)(��Ҹ��Ӄ�(n��i)),��x��ã�ʹ��Һ�е��г��x�c��ĭh(hu��n)��,��ĳ��,��Uˮ�п��ЙC��ЙCؓ(f��)�ɼ�ȥ��Ч�ʶ��^��,��ˮ�ķ��(y��ng)��ϲ��ˮ��ų�,��Ӛ�ķ��(y��ng)��픲��ų��

3��ʽ��ല(UASB)��\�п��

3.1 UASB��{(di��o)ԇ

        UASB�{(di��o)ԇ֮ǰ�茦��(y��ng)��M(j��n)�К��ԇ�,��_��oй©��,��c��̎��Uˮ��Ƶ��ӷN��࣬�N��10KgVSS/m³,��ؓ(f��)��0.05-0.1kgCOS/KgVSS•d,��С�r��M(j��n)�Џ�(f��)�Ѻ��Z��B(y��ng)��ˮ�|(zh��)��r,��(zh��n)�乤��,��ѭ�h(hu��n)��أ��ƽ��^2��,��ӽ��O(sh��)Ӌ�ض��u�M(j��n)��,��ʼ�M(j��n)�ϑ�(y��ng)��gЪʽ�M(j��n)�Ϸ�ʽ��M(j��n)��ؓ(f��)��0.2kgCOD/m³d,��a(ch��n)�Ӛ�߷��^��,��ҕ��pHֵ��]�l(f��)��ĸߵ�(VFA��200mg/L)��ؓ(f��)��,��(w��n)��\��һ�A��,��𲽿s��M(j��n)��g��r�g��ֺ��\��,��ע��,��u�_(d��)��O(sh��)Ӌ��(y��ng)��(d��ng)ע�⣺�Uˮ��ԭ��ںͮa(ch��n)��ĸ��N�]�l(f��)��δ��Ч�ֽ�֮ǰ,��(y��ng)��ӷ��(y��ng)��ؓ(f��)��,��ͬһؓ(f��)��Ҫ��(w��n)��\��һ�Εr�g��ҕ�\�Р�r��ٸ�׃ؓ(f��)��,��څ��ֳ��,��{(di��o)ԇ�\�Еr�gһ��^�L,��s��2-6��µĕr�g,��N��ɿs��{(di��o)ԇ�r�g��һ��,��Ϳ��L��A��,��ҿ��Լ��(ji��)�Ի��gЪ��\�D(zhu��n)��ӵĕr�gҲ��s��,��\��^��,��(y��ng)��(n��i)�ĭh(hu��n)��l��(y��ng)��څ��(x��)��(�a(ch��n)��)�ķ�ֳ��

3.2��(y��ng)��\�п��c��

        ��(y��ng)��\�к�,��Ҫ�^�y��Ƶ�ָ��(bi��o)�У��M(j��n)ˮˮ��,��ضȣ�̎��ؓ(f��)��,��Ӛ�M��,��ˮ�ē]�l(f��)�Ậ��c΢��ķN��ܼ�ͣ��r�g��,��ε��v,��M(j��n)ˮˮ�|(zh��)Ҫ��(w��n)��ˮ��,��ؓ(f��)��Ҳ��(y��ng)��u��,��Ҫ��^�󲨄ӣ��\�Мض�Ҫ�㶨,��ÿ�ղ��ӷ��^2��,��ͬ�r�O(ji��n)�y��ˮ�]�l(f��)��(VFA<300mg/L)��_��ЙCؓ(f��)��,��@�ӿ��ԱM��γɻ��γ��^��w��,��о��J(r��n)�飺�]�l(f��)��ĸߵ��w��γɲ�ͬ��͵��Ҫ��أ��Ʒ��(y��ng)��ˮ�ē]�l(f��)��ȁ��x��ă�(y��u)�ݾ��N,��ü��z��|(zh��)�H��^�ߵ��c,��S�ֵ͵ĳ�ˮ��ȁ��_(d��)��ʹ��z��ɞ��Ҫ��Įa(ch��n)��郞(y��u)�ݾ��Ŀ�ġ��53��±2��,��ˮ��ȵ��200mgCOD/L,��ؓ(f��)��ʣ��B(y��ng)��z��w��,��(d��ng)��ˮ��ȸߕr,��ؓ(f��)�ɿ��B(y��ng)��˯B��w��ࡣ��`�C��Ʒ��(y��ng)��ЙCؓ(f��)�ɺ��ĳ��ǿ��^��ʧ��Ҫ�ֶΡ�

        ��(y��ng)��(d��ng)ע��ǣ��ķ��(y��ng)��ĉA��,��ĵ��נI�B(y��ng),��Ҳ��Ҫ��á��(y��ng)��ЉA�ȼ��_��Ԓ,��a(ch��n)��ЙC�ጢ��ʹ��(y��ng)��Һ�ĉA��pHֵ�½��Ʈa(ch��n)��鷴��(y��ng)�ĳ̶�,��ھ��_��ܵ͵ķ��(y��ng)��m��(d��ng)��̼��c��Ӛ�a(ch��n)��,��pHֵ,��A��,��ж��,��ĳ��c̎��Ч��,��ͬһ�ЙC�Uˮ(��Uˮ��)��׺��׃��,��ճ��r��{(di��o)��(ji��)��ױ��,��һ��(y��ng)��\�е�pHֵ,��ᡢ�A��,��CO₂��ɏUˮ�е��ЙC��,��΢��ӵ��,��΢��ֳ��ͬ�r��߷��(y��ng)��ľ��_��,��

4��ˮ̎��S��Ҫ��ˇ��(sh��)

4.1�O(sh��)Ӌ��(sh��)

        UASB�O(sh��)Ӌ��2750m³,��O(sh��)Ӌؓ(f��)��8kgCOD/m³•d,��l(f��)�͜ض�53��±2��,��O(sh��)Ӌ�M(j��n)ˮ��Ȟ�14600mg/L��1510m³/d,��O(sh��)Ӌȥ��ʞ�COD85%,��SS80%,��

4.2��H�\�Ѕ��(sh��)

        �M(j��n)ˮˮ��1350m³/d,��M(j��n)ˮ��Ȟ�(�ƾ��Uˮ450m³/d,��CODƽ��35000mg/L,��SSƽ��15000mg/L,��Zʳ�Ƶ�ˮˮ��50m³/d��COD100000mg/ L,�� SS8000mg/ L��ۏUˮ850m³/ d,�� CODƽ��15000mg/L,��SSƽ��7500mg/L)CODƽ��24815mg/L,��SSƽ��10019mg/ L��ЙCؓ(f��)�ɿ��_(d��)12kgCOD/ m³•d��,��ˮˮ�|(zh��)COD2465mg/L,��ȥ��90%��SSƽ��1103mg/L,��ȥ��89%,��

5��Ҫ�Y(ji��)Փ

        �� `�C��ʽ��ല(UASB)̎��ƾ��۵ȸߝ��ЙC�Uˮ��øߜضȰl(f��)��,��ȡ��@��Ч��,��UASB�ڸߝ��ЙC�Uˮ̎��؄e�ǸߑҸ��ﺬ��ďUˮ̎��,��һ��õ�ʾ��,��Ҵ��ˌ��҂�һ��J(r��n)��ԓ�b�ò��̎��Ҹ��2000mg/L�ĽY(ji��)Փ,��
        �� “Y”�ͽY(ji��)��(g��u)��x��M(j��n)�з��̎��,��Lʹ�É��,��——Һ——��x�صף��\��Ч�ʼ��ˮˮ�|(zh��),��ʹ��Ч��,��}�_�M(j��n)�ϔ��Ҿ��,��(y��ng)��,��(ji��)�s��Դ,��
        �� ԓ�b��\�з�(w��n)��ȥ��Ч�ʸ�,��\��M��ʡ,��ͣ��r�g��,��˺��m(x��)̎��Ͷ�Y��̎��y��,��ھƾ��Һ�M(j��n)�й�Һ��x,��ۏUˮ��(j��ng)��(f��)��g(sh��)��ˎ�A(y��)̎��ЙCؓ(f��)��,��x��ľ��㡢��۵��׷۵ȶ��ϳ��,��l(f��)�ͮa(ch��n)��Ӛ��偠t�o��ȼ��,��ʹúȼ��֣��͇��ú,��l(f��)�ͮa(ch��n)��ð�򉺞V��r(n��ng)��,��ɶ��Ⱦ��ҳ��YԴ,��˾C��,��Q�˸ߝ��y��ЙC�Uˮ̎��y�}��һ��C��õČ��ü��g(sh��)�Ŀ,��