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Titolo:
IMPROVED WET OXIDATION FOR THE TREATMENT OF DYEING WASTE-WATER CONCENTRATE FROM MEMBRANE SEPARATION PROCESS
Autore:
LEI LC; HU XJ; YUE PL;
Indirizzi:
HONG KONG UNIV SCI & TECHNOL,DEPT CHEM ENGN KOWLOON HONG KONG HONG KONG UNIV SCI & TECHNOL,DEPT CHEM ENGN KOWLOON HONG KONG
Titolo Testata:
Water research (Oxford)
fascicolo: 9, volume: 32, anno: 1998,
pagine: 2753 - 2759
SICI:
0043-1354(1998)32:9<2753:IWOFTT>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Keywords:
WET OXIDATION; DYE CONCENTRATE; WASTE-WATER TREATMENT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
L.C. Lei et al., "IMPROVED WET OXIDATION FOR THE TREATMENT OF DYEING WASTE-WATER CONCENTRATE FROM MEMBRANE SEPARATION PROCESS", Water research (Oxford), 32(9), 1998, pp. 2753-2759

Abstract

In this paper, a series of wet oxidation experiments was carried out in a 2-1 autoclave reactor. To achieve a significant reduction of the reaction temperature and pressure, two new oxidation methods were applied. One was to partially or totally replace oxygen with a stronger oxidant, viz. hydrogen peroxide, and the other was to introduce a catalyst. Both processes were found to achieve a higher initial reaction rate of TOC and colour reduction at lower reaction temperatures and pressures as compared with the conventional wet air oxidation. By combiningthe two new improved methods to treat the dyeing wastewater concentrate from a membrane separation process, almost 80% of TOC reduction and90% of colour removal were achieved within half-an-hour at a reactiontemperature of 110 degrees C and a system total pressure of 50 kPa. (C) 1998 Elsevier Science Ltd. All rights reserved.

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Documento generato il 26/09/20 alle ore 01:35:18