| Autor: |
Guilbaud, Julie1, Massé, Anthony1 anthony.masse@univ-nantes.fr, Andrès, Yves2, Combe, François3, Jaouen, Pascal1 |
| Předmět: |
|
| Zdroj: |
Resources, Conservation & Recycling. Dec2010, Vol. 55 Issue 2, p148-154. 7p. |
| Abstrakt: |
Abstract: The present study deals with the feasibility to implement, on board ship, a direct nanofiltration process in order to treat laundry grey waters and recycle 80% to the inlets of the washing machines. At first, a specific methodology for real laundry grey water production was set up at the laboratory for the purpose. Characteristics of the lab-produced grey water are close to those observed on board (pH 7, 1300mgCOD/L, 80mgTSS/L). Then, a membrane screening in view of a selection was realised at the lab scale. A direct nanofiltration process (without pre-treatment) on tubular PCI-AFC80 membrane (35bar, 25°C, volumic-reduction-factor 5) allowed us to produce a permeate free of micro-organisms and suspended solids and with only 48mgCOD/L and 7mgTOC/L. Based on these satisfactory preliminary results, a techno-economic study was conducted (up-scaling) with the aim of producing daily 52m3 of recyclable permeate from 65m3 of polluted grey water. Finally, orders of magnitude, both for energetic consumption and processing costs, are proposed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
|
Full Text from ScienceDirect