The thick of it

Nick Hankins, Nidal Hilal, Tan Phong Nguyen

Research output: Contribution to specialist publicationArticle

Abstract

Synthetic sludge process is a biological treatment process of municipal and industrial wasterwaters to reduce public health and environmental hazards. The components of synthetic sludge include polysterene latex particles of bacterial size, alginate, fibrous cellulose, and calcium ions, which are effective for the treatment of wastewater. The photometric dispersion analysis for synthetic sludge has shown that no significant flocculation occurs without adding calcium ions and begins when Ca ion concentration reaches 15 mM. The final flocculation size increases with increase in calcium concentration and there is a shift in size distribution, which shows that calcium cations in synthetic sludge are directly involved in flocculation through cationic bridging. Dewatering is improved with the addition of synthetic sludge conditioning agents and the thickened sludge samples with 1 g/l TSS are conditioned with varying amounts of the cationic polymers.

Original languageEnglish
Pages40-43
Number of pages4
No.792
Specialist publicationChemical Engineer
Publication statusPublished - 1 Jun 2007

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Hankins, N., Hilal, N., & Nguyen, T. P. (2007). The thick of it. Chemical Engineer, (792), 40-43.