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Ceramic membrane in production of recycled water; Keraamikalvo uusioveden valmistuksessa - EKT 05

Abstract

Applicability of ceramic ultrafiltration membrane modifications were studied with laboratory units to purify clear filtrate and biologically treated combined wastewater from high quality board manufacturing process for reuse. Also performance of polymeric membrane and ceramic membrane was compared. The performance of the membrane filtration cell, developed according to requirements of the fixed dimensions of ceramic membrane was compared with the performance of the cross-rotational commercial test unit (CR-filter) of polymeric membranes. The quality of ultrafiltration permeate, namely suspended solids, turbidity and colour, was better than the quality of lake water used in the mill. The permeate fluxes were in the range of 60-75 l/m{sup 2}h. The fouling layer primarily controlled the flux and the retention, leaving the effects of surface modifications as the secondary function. The flux was slightly higher with the biologically treated wastewater. Differences in membrane material and pore size had an effect on the cleaning ability of the membranes. The polymeric membrane and the membrane with smaller pore size were easier to clean. Tests with the CR-filter showed that the rotor increases shear forces, reduces the filtration resistance and thus increases the flux compared to the cell for ceramic membranes where the increase of shear forces can  More>>
Authors:
Laitinen, N; Luonsi, A; Levaenen, E; Maentylae, T; Vilen, J [1] 
  1. Haemeen ympaeristoekeskus, Tampere (Finland)
Publication Date:
Dec 31, 1998
Product Type:
Technical Report
Report Number:
NEI-FI-362
Reference Number:
SCA: 320305; PA: FI-99:003374; SN: 99002156270
Resource Relation:
Other Information: PBD: 1998; Related Information: Is Part Of CACTUS technology programme. Yearbook 1998; Alakangas, E. [ed.]; PB: 300 p.
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; PAPER INDUSTRY; ULTRAFILTRATION; WATER; CERAMICS; MEMBRANES; WATER TREATMENT; CHEMISTRY; CHEMICAL OXYGEN DEMAND; BIOCHEMICAL OXYGEN DEMAND
OSTI ID:
703376
Research Organizations:
VTT Energy, Jyvaeskylae (Finland)
Country of Origin:
Finland
Language:
Finnish
Other Identifying Numbers:
Other: ON: DE99771568; TRN: FI9903374
Availability:
OSTI as DE99771568
Submitting Site:
FI
Size:
pp. 63-72
Announcement Date:

Citation Formats

Laitinen, N, Luonsi, A, Levaenen, E, Maentylae, T, and Vilen, J. Ceramic membrane in production of recycled water; Keraamikalvo uusioveden valmistuksessa - EKT 05. Finland: N. p., 1998. Web.
Laitinen, N, Luonsi, A, Levaenen, E, Maentylae, T, & Vilen, J. Ceramic membrane in production of recycled water; Keraamikalvo uusioveden valmistuksessa - EKT 05. Finland.
Laitinen, N, Luonsi, A, Levaenen, E, Maentylae, T, and Vilen, J. 1998. "Ceramic membrane in production of recycled water; Keraamikalvo uusioveden valmistuksessa - EKT 05." Finland.
@misc{etde_703376,
title = {Ceramic membrane in production of recycled water; Keraamikalvo uusioveden valmistuksessa - EKT 05}
author = {Laitinen, N, Luonsi, A, Levaenen, E, Maentylae, T, and Vilen, J}
abstractNote = {Applicability of ceramic ultrafiltration membrane modifications were studied with laboratory units to purify clear filtrate and biologically treated combined wastewater from high quality board manufacturing process for reuse. Also performance of polymeric membrane and ceramic membrane was compared. The performance of the membrane filtration cell, developed according to requirements of the fixed dimensions of ceramic membrane was compared with the performance of the cross-rotational commercial test unit (CR-filter) of polymeric membranes. The quality of ultrafiltration permeate, namely suspended solids, turbidity and colour, was better than the quality of lake water used in the mill. The permeate fluxes were in the range of 60-75 l/m{sup 2}h. The fouling layer primarily controlled the flux and the retention, leaving the effects of surface modifications as the secondary function. The flux was slightly higher with the biologically treated wastewater. Differences in membrane material and pore size had an effect on the cleaning ability of the membranes. The polymeric membrane and the membrane with smaller pore size were easier to clean. Tests with the CR-filter showed that the rotor increases shear forces, reduces the filtration resistance and thus increases the flux compared to the cell for ceramic membranes where the increase of shear forces can be done by increasing the flow velocities. (orig.)}
place = {Finland}
year = {1998}
month = {Dec}
}