| 1 | Conclusion: Alum and dried alum have significant bacteriostatic effect in vitro. | |
| 2 | Results:It has obvious effect of bacteriostasis on above bacteria. | |
| 3 | Polyelectrolytes as coagulant aids lower the required dosages of alum and auxiliary chemicals. | |
| 4 | Result: The qualitative detection of Iron salt disaccord with regulations, result in 10 lots Alum from market were disaccord with the standard of Chinese pharmacopoeia, 2005 edition. | |
| 5 | The method primarily materializes the paper making sewage with the alumenb and the white sugar, and the processed sewage can be recycled in the production. |
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