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1.1 ��

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1.2 ԭ��

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1.3 Ӱ��@�V�γ��

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1.3.2 pH ֵ,��Uˮ��pH ֵ��MAP ��ȥ��Ч��Ӱ푺ܴ�[3],��pH �l��Q��˽M��B�Sʯ�ĸ��N�x��ˮ��_��ƽ��r�Ĵ��ΑB(t��i)�ͻ��,��ֻ�Ю��B�Sʯ��ĸ��N�x�ӵĻ�ȷe��^��ܶȷe,��ܰl(f��)��

��һ��,��B�Sʯ��ˮ�е��ܽ��S��pH��߶��,��pH ��ߵ�һ��ֵ�r,��B�Sʯ��ܽ�ȕ��SpH ��߶��,��pH<7 �r��Һ��PO43-�x�ӝ�ȵ�,��B�Sʯ��M��,��pH ֵ8.0~9.5 �r,��B�Sʯ��pH ֵ9.5~11 �r,��һ��D��ɚ�B(t��i)��]�l(f��),��˕r��B�Sʯ��Mg(OH)2��pH ֵ>11 �r,��B�Sʯ��Mg3(PO4)2,��pH ֵ��12 �r,��Mg3(PO4)��C��īI��֪,��B�Sʯ��հ��(y��u)pH ��8~10 ֮�g,��ͬ��о��ó��ĽYՓ��e

1.3.3 ��턩Ͷ�ӵ�Ħ��ȡ�Ҫ��@�V(MgNH4PO4·6H2O)��,��턩Ͷ�ӵ�Ħ��n(Mg2+)�� n(NH4+)�� n(PO43-)��Փ�ȑ��1��1��1,��ͬ�x��Ч��Mg2+,��PO43-��,��ɴ��M��M�У��Ķ��߰��ȥ��cȥ��,��ˎ��Ͷ��ܶ෽��ص�Ӱ�,��C�Ͽ��]��ش_��ȵ��ȡ�

1.3.4 ��턩��x��,��MAP ��x�ö�N��Mg2+��V�}�ͺ�PO43-��}��黯�W��ˎ��[4],��ǣ��ͬˎ��Uˮ��̎��Ч��c̎��ɱ��@�Ĳ,��ȥ��ʿ��54.4%~98.2%֮�g��,��ձ��J��c��Ȼ��V��턩��߰��Uˮ̎��Ч��^�ã��ȥ��>90%[5],��V�}�ĳɱ��̎��Ҫ�ɱ�֮һ,��ʹ�ò�ͬ��V�}��ɱ�ռ��̎��ɱ��4.4%~40.2%֮�g��ʹ��MgCO3 ��ʹ��MgCl2 �ɱ��18.3%[6],��}�^�F,��Ҹ��r��Ч��}�ɴ��Ƚ��͏Uˮ̎��ɱ��

�w�õ�[7]�ڌ�MAP ��M�з��Ļ��A��,��MgHPO4(MHP)��հ��,��հ��Įa��MAP �M�П�ֽ�ʹMgHPO4 ��İ��Uˮ̎��·��о��NH4Cl ��Һ��ģ�M��Uˮ,��Ҫ̽��pH,��ضȵȸ��N�l��MHP �İ��ܵ�Ӱ푡��о��Y��,��MHP��̎��˰��Uˮ,��ɵ�MAP ��ֽ�,��ų��cˮ�Ļ��Ի��ոߝ�ȵİ�ˮ,��˷�߀��ʹMAP �D��MHP ѭ�h(hu��n)��,��ҪͶ�Ӵ��V�}��}��ԓ��c��ȷ��,��ܰяUˮ�еİ��Ըߝ�ȵİ�ˮ��,��F(xi��n)��YԴ��Ч��õ��c��

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1.4 ��

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1.5 �l(f��)չڅ��

�ڽ��Č��H��,��ԓ��Ҫ��څ�ݣ�(1)��ԓ��ɵ��@�V�w��С��w,��Һ��x��һ��y��һ��̶��ԓ��đ��,��о�څ��B�Sʯ�Y��Ą��W,��Y��ȷ��Y��w�|��Ƶȷ��о�,��(2)��ѷ��l��,��_��Uˮ��Mg2+��NH4+,��PO43-�x�ӵ��ѱ��,��Ԍ��F(xi��n)��󰱵�ȥ��ʡ�(3)�Ҍ��r��Ч�ĳ��ˎ��,��B�Sʯ��հ��Ч��,��̎��ɱ��о��ğ��c֮һ��B�Sʯ��ˇ�\�гɱ��ߵ�һ��ԭ��ҪͶ��VԴ,��҇��ˮ�S��H�\��Ќ��ˮ��}�uˮ��V�V��I(y��)��aƷ��VԴ,��،��󽵵��\�гɱ�,��(4)�ЙC�Ｐ��s�|��B�SʯÓ��^�̵�Ӱ푙C��о��(5)��W��Uˮ̎��,��紵Ó��,��﷨(li��n)��ʹ�ÙC��о��Ԍ��F(xi��n)̎��ɱ��Ľ��,��(6)�B�Sʯ�Y��b�õ��о�,��(7)�B�Sʯȥ��Ľ��Ч��a��;��V��_��MAP��;,��ʹ��յ�MAP ��H��a��ˎ��M��߀�ܮa��һ��Ľ��Ч��,��tMAP ��ļ��g��(y��u)�݌��Ϸ��ȡ��ͻ��,��B�Sʯ��Ó��׼��g��õ��Ҏ(gu��)ģ��ƏVʹ��,��δ��ߝ�Ȱ��Uˮ̎��İl(f��)չ��̓�(y��u)��x��

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[1] Xu Yuan, Jiang Jing-dong, Ma San-jian, et al. Advancesin the application of struvite sediment to wastewater treatment[J]. Pollution Control Technology, 2006, 19 (6): 26-30, 57. (in Chinese)

[2] Pastor L, Mangin D, Barat R, et al. A pilot-scale study ofstruvite precipitation in a stirred tank reactor: Conditions influencingthe process[J]. Bioresource Technology, 2008, 99(14): 6285-6291.

[3] ꐆ��A��_��,��,��. ��@�V��Ó��Uˮ�а��ļ��g�F(xi��n)��[J]. ��I(y��)ˮ̎��, 2008, 28 (6): 5-8.

[4] �´󄂣��Ϸ�ƽ,��w��,��. ��W��ߝ�Ȱ��Uˮ��о�[J]. ��u��W�W��(��̼��g��), 2004,19(2):1-5.

5] ��־�V��O�w��u��A,��. �ó��⸡��ջ��ʏS[14]

[6] �w��,��ܿ��,��. ��V��̎��Uˮ�Ĺ�ˇ�l��[J]. ˮ̎��g, 2008, 34(4): 69-72.

[7] �߽��,��Z��£��ǽ�ƽ,��. ��W��̎��ߝ�Ȱ��Uˮ��ˇ�l��о�[J]. �h(hu��n)��ƌW�c��g, 2008, 31(10):114-117.

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