��ϳ��̎��ؽ��x�ӏUˮ

��r(sh��)�g��2012-02-03 11:24 ��(l��i)Դ�� : ��x��2400

Ŀǰ,��҇�(gu��)��û��W(xu��)��̎��ؽ��x�ӏUˮ��ڲ�ͬ��ؽ��x��ɚ��r(sh��)��pHֵ��ͬ,��Լ�ĳЩ�ؽ��x�ӿ��c��Һ�е��x��γɽj(lu��)��(��ˮ�е��ܽ��),��̎��Ч��롣��,��ؽ��x��ډA�Խ��|(zh��)��ɵĚ��,��һ��֕�(hu��)��ŷ��S��pHֵ�Ľ��Ͷ��ܽ��ˮ�С��,��Ҫ�о��_(k��i)�l(f��)��Ч��ؽ��x��Ó��,��(j��ng)��(j��)��̎��

1��ϳ��C(j��)��

DTCR��L(zh��ng)朸߷��|(zh��),��д��ĘO�Ի�(�O�Ի��е��ԭ�Ӱ돽�^��,��ؓ(f��)늣��ژO��׃�ζ��a(ch��n)��ؓ(f��)늈�(ch��ng)),��ܲ�׽�(y��ng)�x�Ӳ�څ��I��y�ܵİ��}(TDC�}),��ɵ�TDC�}�в��x��I��(qi��ng)�O��I(��TDC—Ag),��(sh��)��r(ji��)�I(��TDC—Cu,��TDC—Zn,��TDC—Fe)��ͬһ��x��ϵ��r(ji��)��O��܁�(l��i)�Բ�ͬ��DTCR��,��@��ɵ�TDC�}�ķ��ӕ�(hu��)�Ǹ߽�(li��n)��,��w�Y(ji��)��(g��u)�ģ�ԭDTCR��(du��)��|(zh��)��(10��15)×104,��ɵ��y��}�Ŀ��_(d��)��(sh��)��f(w��n)��ǧ�f(w��n),��ʴ˷N��}һ��ˮ��ɣ��кܺõ��Ч��,��

��ϳ��DTCR�ڳ��c�Uˮ��Hg2+,��Cd2+��Cu2+,��Pb2+,��Mn2+��Ni2+,��Zn2+,��Cr3+�ȶ�N�ؽ��x��Ѹ�ٷ��(y��ng)��c(di��n)��ɲ��ˮ��}��ټ��ЙC(j��)��(��)�o(w��)�C(j��)��γ��,��Ķ��_(d��)��ȥ��ؽ��x�ӵ�Ŀ��,��

2��ϳ��c(di��n)

��ϳ��c(di��n)��

��̎��(ji��n)�Σ�ֻҪ��ˎ��ɳ�ȥ�ؽ��x��,��Ҳ��O(sh��)��M(f��i)��,��

��DTCR��c�ؽ��x�ӏ�(qi��ng)��ϣ�ȥ��ؽ��Ч��,��

��DTCR�Ǹ߷��Ƅ�,��c��x��õ��w��Ч��,��

��Óˮ(��Â��y(t��ng)�Ļ��W(xu��)��͵ͷ��Ӳ��턩̎��r(sh��),��ҪͶ�Ӵ��ʹ��࣬��಻��Óˮ,��ճ�ڞV��?y��n)V��϶��),��

��DTCR��pHֵ�m�÷��pH=3��11��(n��i)��Ч,��

DTCR��,��ӡ�ʯ��,��ټӹ�,��ٟ�̎��늏S��ϴ��ИI(y��)�ďUˮ̎��

3��(y��ng)�Ì�(sh��)��

3.1��像S�Uˮ̎��

�\(y��n)�Зl��̎��Y(ji��)��քeҊ(ji��n)��1,��2,��̎��ˇҊ(ji��n)�D1��

��1 ̎��ˇ�l��
Cr⁶⁺߀ԭ			��(y��ng)		��
Na₂S₂O₅(mg/L)	H₂SO₄(mg/L)	pH	NaOH(mg/L)	DTCR(mg/L)	PAM(mg/L)
213	88	2.52	444	100	1

��2 ̎��Y(ji��)��
�M��	Cu²⁺(mg/L)	Zn²⁺(mg/L)	Fe³⁺(mg/L)	��Cr(mg/L)	Ni²⁺(mg/L)	pH
ԭˮ	7.3	79.8	1.74	33.3	4.05	3.36
̎��ˮ	0.0123	0.2349	0	0	0.1819	8.35

�ɱ�2��֪,��ϵ�y(t��ng)��(du��)��x��ȥ��Ч��,��ˏUˮ��û��W(xu��)��̎��x��ɳ��pHֵ��ͬ,��ȥ��ܼ���(d��ng)pHֵ�{(di��o)��8��9�r(sh��)�\,��懇�(y��n)�س��(bi��o)��pHֵ��ߵ�9��ϕr(sh��)�t�t��(hu��)��ܶ��(bi��o),��ϳ��t�ܺõؽ�Q��@��(g��)��(w��n)�},��

4��Y(ji��)�Z(y��)��

��ϳ��ǌ�(du��)��ؽ��x�ӏUˮ�M(j��n)�л��W(xu��)̎��һ�N�·��ͬ�r(sh��)Ҳ��Uˮ̎��ĳ��Փ�_(k��i)��µ��о��I(l��ng)��,��_(k��i)�l(f��)��ϳ��̎��Uˮ��·��ṩ��Փ��(j��),��

DTCR�܉�ȥ��N�ؽ��x�ӣ��ǳ��m��,��,��ʯ��ИI(y��)�ƏV��(y��ng)�á�

����D(zhu��n)�d��ǳ��ڂ��f��Ϣ֮Ŀ��,��Ё�(l��i)Դ��(bi��o)ע�e(cu��)�`��ַ��ĺϷ��(qu��n)��,��Ո(q��ng)��߳֙�(qu��n)��C��c��W(w��ng)(li��n)ϵ��҂��r(sh��)��,��h��,��x�x��