Ionic Liquids for Clean Technology
Kenneth R. Seddon · 1 Apr 1997
The use of room-temperature chloroaluminate(III) ionic liquids, specifically 1-butylpyridinium chloride–aluminium(III) chloride and 1-ethyl-3-methylimidazolium chloride–aluminium(III) chloride, as solvents for clean synthesis and catalytic processes, particularly those applicable to clean technology, is becoming widely recognised and accepted. The design principles for room-temperature ionic liquids, some of their properties, and the rationale for using these neoteric solvents, are…
Photocatalytic degradation for environmental applications – a review
Dhananjay Bhatkhande, Vishwas G. Pangarkar, Anthony A. C. M. Beenackers · 4 Dec 2001
Abstract Photocatalysis is a rapidly expanding technology for wastewater treatment. In this review the chemical effects of various variables on the rate of degradation of different pollutants are discussed in detail. The effects of adsorption, temperature, intensity of light, pH, and the presence of anions, cations, etc have been specifically covered. A critical analysis of…
Biosorption: critical review of scientific rationale, environmental importance and significance for pollution treatment
Geoffrey Michael Gadd · 29 Jul 2008
Abstract Biosorption may be simply defined as the removal of substances from solution by biological material . Such substances can be organic and inorganic, and in gaseous, soluble or insoluble forms. Biosorption is a physico‐chemical process and includes such mechanisms as absorption, adsorption, ion exchange, surface complexation and precipitation. Biosorption is a property of both…
Plant‐mediated synthesis of silver and gold nanoparticles and their applications
Vineet Kumar, Sudesh Kumar Yadav · 19 Aug 2008
Abstract Nanobiotechnology deals with the synthesis of nanostructures using living organisms. Among the use of living organisms for nanoparticle synthesis, plants have found application particularly in metal nanoparticle synthesis. Use of plants for synthesis of nanoparticles could be advantageous over other environmentally benign biological processes as this eliminates the elaborate process of maintaining cell cultures.…
Review: Treatment and reuse of wastewater from the textile wet‐processing industry: Review of emerging technologies
Philippe Vandevivere, Roberto Bianchi, Willy Verstraete · 1 Aug 1998
New ecolabels for textile products and tighter restrictions on wastewater discharges are forcing textile wet processors to reuse process water and chemicals. This challenge has prompted intensive research in new advanced treatment technologies, some of which currently making their way to full-scale installations. These comprise polishing treatments such as filtration, chemical oxidation and specialized flocculation…
