Biodegradable star-like polymer flocculants for rapid, efficient purification of water contaminated with industrial radionuclides

Novel biodegradable flocculants based on polysaccharides

The waste water and industrial effluent-treatment requires both inorganic and organic flocculants. Among the organic type, polymeric flocculants (synthetic as well as natural) are preferred because of their low dosage, easy handling, inertness to pH changes, production of large cohesive flocs and versatile tailorability. The concern for environmental and ecological issues warrants the use of th...

Polymer Nanocomposite Hydrogels for Water Purification

Applications of Biological Flocculants (BFs) for Coagulation Treatment in Water Purification: Turbidity Elimination

In this study, coagulation performance by using biological flocculants (BFs; produced from strain Bacillus sp. F6) for turbidity removal was investigated. The results demonstrated that BFs were able to eliminate turbidity from kaolin clay solution over a wide dosage range ( DR = 6–20 mg L ). The removal efficiency with BFs reached 86 % on average, lower than 95 % with Al2(SO4)3 ( Al = 6.5 mg L ...

Water-dispersible and biodegradable polymer micelles with good antibacterial efficacy.

New amphiphilic ABC triblock copolymers have been designed and self-assembled into water-dispersible and biodegradable polymer micelles, which exhibit good antibacterial activities without quaternary ammonium moieties or the loading of any external antibiotics due to the increased local concentration of cationic charge in the polymer micelles compared to the un-self-assembled individual polymer...

Synthesis and Characterization of Biodegradable Semi-Interpenetrating Polymer Networks Based on Star-Shaped Copolymers of ɛ-Caprolactone and Lactide

In this paper, the focus is on a new kind of biodegradable semi-interpenetrating polymer networks, which derived from ɛ-caprolactone, lactide, 1,4-butane diisocyanate and ethylenediamine and also its potential has been investigated in soft tissue engineering applications. The polymers were characterized by nuclear magnetic resonance (NMR) spectrometry, fourier transform infrared spectroscopy (F...