Treatment of waste coolants by coagulation and membrane filtration

Nidal Hilal, Gerald Busca, Federico Talens-Alesson, Brian P. Atkin

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

In this study, the treatment of waste coolant (mobile cut 232) from cutting tools was studied by three processes. The first pre-treatment process, coagulation was tested using four conventional industrial coagulants, aluminium sulphate hydrate, aluminium chloride, iron sulphate pentahydrate and iron chlorite. The second process was filtering the supernatant produced from the first stage using two nanofiltration membranes of 500 and 2000 Da. The third process used ultrafiltration method using a 100,000 Da membrane. The critical coagulation concentration of the different coagulants was determined and the quality of the supernatant was compared to the permeate produced by ultrafiltration. The parameters compared were TOC, absorbance at 400 nm and pH. The performances of both nanofiltration membranes were evaluated. In addition, the surface morphology and pore size distribution of the NF and UF membranes were investigated with an Atomic Force Microscope.

Original languageEnglish
Pages (from-to)811-821
Number of pages11
JournalChemical Engineering and Processing: Process Intensification
Volume43
Issue number7
DOIs
Publication statusPublished - Jul 2004
Externally publishedYes

Fingerprint

Nanofiltration membranes
Coagulants
Ultrafiltration
Coagulation
Coolants
Iron
Membranes
Aluminum chloride
Cutting tools
Hydrates
Sulfates
Pore size
Surface morphology
Microscopes
Aluminum
chlorite
aluminum chloride
aluminum sulfate

Keywords

  • Coagulation
  • Metalworking fluids
  • Nanofiltration
  • Ultrafiltration
  • Wastewater treatment

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Treatment of waste coolants by coagulation and membrane filtration. / Hilal, Nidal; Busca, Gerald; Talens-Alesson, Federico; Atkin, Brian P.

In: Chemical Engineering and Processing: Process Intensification, Vol. 43, No. 7, 07.2004, p. 811-821.

Research output: Contribution to journalArticle

Hilal, Nidal ; Busca, Gerald ; Talens-Alesson, Federico ; Atkin, Brian P. / Treatment of waste coolants by coagulation and membrane filtration. In: Chemical Engineering and Processing: Process Intensification. 2004 ; Vol. 43, No. 7. pp. 811-821.
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