PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Effect of polyaluminium chlorides overdosage on effectiveness of coagulation and filtration

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
PACls overdosage has negative impact on the operation and the effectiveness of coagulation and separation of post-coagulation suspensions. The results of the pilot study revealed that a sharp increase of fine particles was observed at reaching and exceeding the isoelectric point. Based on the full-scale research with PACl_1 (B = 2, 4) it was stated that these particles did not cause deterioration of standard quality parameters (turbidity, absorbance UV254, colour, TOC, CODMn) of water purified in conventional treatment. However, the particles not retained in sedimentation tanks supplied rapid filters and caused their overloading, and hence shortening of filtration cycles.
Rocznik
Strony
5--14
Opis fizyczny
Bibliogr. 13 poz., tab., rys.
Twórcy
autor
  • Faculty of Energy and Environmental Engineering, Silesian University of Technology, Gliwice, Poland
autor
  • Faculty of Energy and Environmental Engineering, Silesian University of Technology, Gliwice, Poland
Bibliografia
  • [1] ŚWIDERSKA-BRÓŻ M., WOLSKA M., Efficiency of surface water treatment processes at removing biodegradable organic substances, Ochr. Środowiska, 2011, 33 (4), 77.
  • [2] ŚWIDERSKA-BRÓŻ M., WOLSKA M., Removal of total organic carbon fractions from surface water by coagulation, Ochr. Środowiska, 2011, 33 (1), 9.
  • [3] PERNITSKY D., EDZWALD J., Solubility of polyaluminum coagulants, J. Water Supply: Res. Technol. – AQUA, 2003, 52 (6), 395.
  • [4] SHUPING B., CHENYI W., QING C., CAIHUA Z., Studies on the mechanism of hydrolysis and polymerization of aluminum salts in aqueous solution: correlation between the “Core-links” model and “Cage-like” Keggin-Al13 model, Coord. Chem. Rev., 2004, 248, 441.
  • [5] TOCZYŁOWSKA B., The role of indirect indicators in assessing threats to human health due to the presence of Cryptosporidium oocysts in water, Ochr. Środowiska, 2007, 29 (3), 25.
  • [6] DĄBROWSKI W., Rational operation of variable declining rate filters, Environ. Prot. Eng., 2011, 37 (4), 35.
  • [7] KŁOS M., GUMIŃSKA J., Use of real time coagulant dose control to upgrade the efficiency of the coagulation process, Ochr. Środowiska, 2011, 33 (4), 71.
  • [8] KŁOS M., Use of the stream current analyzer for the control of sweep coagulation, Ochr. Środowiska, 2012, 34 (2), 15.
  • [9] GUMIŃSKA J., KŁOS M., Analyzing the consequences of pre-hydrolyzed coagulant overdosage, Ochr. Środowiska, 2012, 33 (3), 15.
  • [10] WANG D., SUN W., XU Y., TANG H., GREGORY J., Speciation stability of inorganic polymer flocculant– PACl, Colloids Surf., A, 2004, 243 (1–3), 1.
  • [11] WANG S., WANG M., TZOU Y., Effect of temperatures on formation and transformation of hydrolytic aluminum in aqueous solutions, Colloids Surf., A, 2003, 231, 143.
  • [12] WEIZHI Z., BAOYU G., QINYAN Y., LILI L., YAN W., Al-Ferron kinetics and quantitative calculations of Al(III) species in polyaluminium chloride coagulants, Colloids Surf., A, 2006, 278, 235.
  • [13] SCHULZ M., GODEHARDT M., BOULESTREAU M., ERNST M., MIEHE U., LESJEAN B., JEKEL M., On-line submicron particle analysis for the assessment of fouling potential in tertiary membrane filtration, Proceedings of the International Conference on Particle Separation, Berlin 2012.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-ee6ae59a-3fe6-4eac-95a8-d07b8fc2da08
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.