✦ LIBER ✦

The use of dyestuff-treated rice hulls for removal of heavy metals from waste water

✍ Scribed by R. Suemitsu; R. Uenishi; I. Akashi; M. Nakano

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 385 KB
Volume: 31
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1986.070310108

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✦ Synopsis

Rice hulls, when coated with the reactive dye of Procion Red or Procion Yellow, was found to be highly effective for removal of many metal ions from aqueous solutions both in batch and column method. When 120-130 ppm solutions were used, quantitative removal could be achieved with Pbz+, Cd2+, and Hgz+. After the adsorption of metal ions, the substrate could be recovered almost completely by treating with dilute hydrochloric or nitric acid solution, and used repeatedly.

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## Abstract The graft copolymerization of acrylamide (AAm) monomer onto polyethylene‐coated polypropylene (PE‐__co__‐PP) nonwoven fabric was carried out by the mutual irradiation method. The general peculiarities of the grafting have been studied by gravimetric, scanning electron microscope (SEM),