Optimization of Synthesis Condition and Determination of Residue for Polyamine Type Flocculant

폴리아민계 고분자 응집제의 합성조건 최적화 및 잔류물분석

  • Received : 1998.07.10
  • Accepted : 1998.09.07
  • Published : 1998.12.10


Aluminium based inorganic flocculants are extensively used in this country in the removal of fine particles present in the raw water for the production of drinking water. These inorganic flocculants, however, have potential hazard of high residual aluminium ions in the treated waters, which is known to be one of the reasons of alzheimer's disease. Inorganic flocculants alone are sometimes incapable of treating water when there are excessive turbidity in the raw water sources due to flooding. A polyamine type polymeric flocculant has long been used to treat raw water in the drinking water production in the European countries and United State of America. The optimum reaction conditions such as mole ratio of epichlorohydrin(EPI) to dimethylamine(DMA), reaction temperature and time for each stage for the pilot scale preparation of polyamine from EPI-DMA was studied in this work. The variation of intrinsic viscosity and flocculating efficiency in the water treatment of the synthesized polyamines were evaluated. The residual materials after polymerization reaction were analyzed by gas chromatography to study the effect of variation of reaction conditions.


  1. AWWA Research Foundation A. Amirtharajah;M. M. clark;R. R. Trussell
  2. Sci. v.180 D. R. Crapper;S. S. Krishnan;A. J. Dalton
  3. Lancet A. M. Davison
  4. International Workshop, IWSA R. Nilson
  5. J. Environ. Eng. v.115 M. R. Wiesner;M. M. Clark;J. Mallevialle
  6. J. Membr. Sci. v.68 M. M. Peuchot;R. B. Aim
  7. Environmental Technology v.19 S. H. Lee;M. C. Shin;S. J. Choi;J. H. Shin;L. S. Park
  8. U. S. Pat. 3,248,353 A. T. Coscia
  9. AWWA Standard for EPI-DMA Polyamines American Water Works Associaton
  10. Process Chemistry for Water and Wastewater Treatment L. D. Benifield;J. F. Judkins Jr.;B. L. Weand