The application of PAC/UF hybrid processes for the removal of organic substances from natural waters

• Autorzy: Mozia S. , Tomaszewska M.
• Języki publikacji: EN

Abstrakty

EN

A polyacrylonitrile ultrafiltration (UF) membrane was tested in order to examine its applicability for water purification in the adsorption - ultrafiltration (PAC/UF) system. The influence of the presence of humic acids (HA) in a feed on the membrane fouling was examined. Moreover, the effect of powdered activated carbon (PAC) addition to the feed on the UF process, especially on the flux decline and the possibilities of membrane cleaning during backwashing as well as the effectiveness of the removal of organic contaminants was investigated. Natural water from Miedwie Lake with the addition of humic acids was applied as a feed. Commercial powdered activated carbon CWZ 30 (Gryfskand Sp. z o. o., Hajnowka, Poland) was used as the adsorbent. PAC dosage was equal to 100 mg PAC 1(-1). The process was carried out in the cross - flow system. It was found that the combination of the UF and the adsorption on PAC was more effective in organics removal than UF alone. The effectiveness of organics removal during the UF was lower at pH 6.5 than at pH 8.7. The treatment effects obtained in the PAC/UF hybrid processes were similar at both pH values. Moreover, no significant effect of PAC addition to the feed on the permeate flux was observed.

Słowa kluczowe

EN

ultrafiltration; PAC/UF; fouling; hybrid processes; water treatment

PL

wody powierzchniowe; układ hybrydowy; PWA/UF; ultrafiltracja

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2004
• Tom: Vol. 6, nr 3
• Strony: 29--32
• Opis fizyczny: Bibliogr. 7 poz., tab., rys.

Twórcy

autor

Mozia S.

• Technical University of Szczecin, Institute of Chemical and Environment Engineering, ul. Pułaskiego 10, 70-322 Szczecin

autor

Tomaszewska M.

• Technical University of Szczecin, Institute of Chemical and Environment Engineering, ul. Pułaskiego 10, 70-322 Szczecin

Bibliografia

• (1) Laine J. M., Vial D., Moulart P., Status after 10 years of operation - overview of UF technology today, Desalina-tion, 2000.131.17 - 25.
• (2) Mozia S., Tomaszewska M., Water treatment using hybrid processes PAC/UF, Polish Journal of Chemical Tech-nology, 2003, 4 (5), 37 - 39.
• (3) Mozia S., Tomaszewska M., Treatment of surface water using hybrid processes - adsorption on PAC and ultrafiltra-tion, Desalination, 2004, 162, 23 - 31.
• (4) Tomaszewska M, Mozia S., Effect of PAC on mem-brane performance during ultrafiltration, Proceedings of the conference „Membranes in Drinking and Industrial Water Production", Miilheim, Germany, September 22 - 26, 2002, band 37b, 337 - 343.
• (5) Tomaszewska M., Mozia S., Removal of organie matter from water by PAC/UF system, Water Research, 2002, 36, 4137 - 4143.
• (6) Tomaszewska M., Mozia S., Kaleńczuk R. J., Sorption of phenol onto activated carbon, Polish Journal of Chemical Technology, 2001, 3, 28 - 30.
• (7) Kabsch - Korbutowicz M., Majewska - Nowak K., Winnicki T, Analysis of membrane fouling in the treatment of water solutions containing humic acids and mineral salts, Desalination, 1999, 126, 179 - 185.