Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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The Correlation Between the Polymeric Aluminum Species of Inorganic Coagulant and Its Coagulation Efficiency

알루미늄계 무기 고분자 응집제에서 알루미늄 폴리머 생성과 응집효율과의 상관관계

  • 김지연 (서울대학교 응용화학부) ;
  • 이창하 (서울대학교 응용화학부) ;
  • 손진식 (국민대학교 건설시스템 공학부) ;
  • 윤제용 (서울대학교 응용화학부)
  • Received : 2004.01.30
  • Accepted : 2004.05.28
  • Published : 2004.06.15
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Abstract

The correlation between polymeric aluminum species of coagulant and its coagulation efficiency was investigated using several commercial polymeric Al(III) inorganic coagulants (Poly Aluminum Hydroxy Chloro Sulfate 2020 (PAHCS2020), Poly Aluminum Hydroxy Chloro Sulfate 2500 (PAHCS2500) which was introduced in Korean water treatment plants. The poly aluminum chloride (PAC), Poly Aluminum Hydroxide Chloride Silicate (PACS)) and the aluminum salts ($AlCl_3$, Alum ($Al_2(SO_4)_3$)) were used for the purpose of comparison. The comparison of the coagulation efficiency of each coagulant was made by turbidity removal through the standard jar testing procedure and the determination of the hydrolytic Al(III) species was made by the ferron method which can differentiate the monomeric aluminum species from the polymeric aluminum species. Overall, PAHCS2020 and PAHCS2500 showed the better performance in turbidity removal than the aluminum salts. The performance of coagulation was even better without adjustment of pH during the coagulation experiment. The positive correlation between polymeric aluminum species of coagulant and coagulation efficiency was found.

Keywords

References

  1. 하기성, 정현석(1999) 규산황산알루미늄의 용집특성에 관한 연구, 대한환경공학회지, 21(11), pp. 2079-2089
  2. 한승우，정철우，강임석(1999) 상수처리용 합성 무기고분자 Al(III)계 응집제의 화학적 특성, 한국환경과학회지，8(6), pp.711-716
  3. 한숭우，강임석(1999) PACI 응집제의 특성 및 기타 Al(Ill)계 응집제와의 응집특성 비교, 한국물환경학회지，15(3), pp. 345-352
  4. Amirtharajah A, O'Melia C.R. (1990) Water quality and treatment, 4th ed., 269, McGraw-Hill, NY
  5. Buffle. J., Parthasarathy.N., Haerdi.W. (1985) Importance of speciation methods in analytical control of water treatment processes with application to fluoride removal from waste waters, Wat. Res, 19(1), pp. 7-13 https://doi.org/10.1016/0043-1354(85)90318-5
  6. Fiessinger F. (1978) Coagulation and flocculation. Part I. Coagulation, Int. Wat. Supply. Ass. Congr. Proc., 12, E-I-E-10
  7. Jardine P.M., Zelazny L.W. (1986) Mononuclear and polynuclear aluminum speciation through differential kinetic reaction in ferron, Soil Sci. Soc. Am. J., 50, pp. 895-900
  8. Packham R.F., Shieham J. (1977) Development in the theory of coagulation and flocculation, J. lnst. Wat. Engng Sci., 31, pp. 96-108
  9. Parker D.R., Zelazny L.W., Kinraide T. B. (1988) Comparison of three spectrophotometric methods for differentiating mono- and polynuclear hydroxy-aluminum complexes. Soil Sci. Soc. Am.J., 52, pp. 67-75
  10. Parker D.R., Bertsch P.M. (1992) Identification and Quantification of the '$Al_{13}$' Tridecameric polycation using ferron, Environ. Sci. Technol., 26, pp. 908-914
  11. Stumm W., Morgan J.J. (1962) Chemical aspects of coagulation, J. Am. Wat. Wks ass., 54, pp. 971-994
  12. Stumm W., O'Melia C. R. (1968) Stoichiometry of coagulation, J. Am. Wat. Wks Ass., 60, pp. 514-539