chitosan water treatment Articles
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A new composite chitosan flocculant has been prepared, and its optimal dosage in the treatment of sewage established. It significantly improves the removal of chemical oxygen demand, suspended solids and aluminium ions from water. Compared with the traditional flocculant polyaluminium chloride, the cost of the composite flocculant was lower and it produced less pollution.Keywords: chitosan, ...
Chitosan, a natural biopolymer, was evaluated for its ability to be used as a coagulant to treat water for potable use both in isolation and in combination with other water treatment technologies, specifically ion-exchange and activated carbon. Chitosan was found to be very effective for particle removal at doses far below those required for equivalent turbidity removal by inorganic coagulants. ...
There are few studies that evaluate the application of chitosan in the treatment of eutrophic waters and its contribution to disinfection by-product formation. Thus, this study evaluated the use of chitosan as coagulant in the treatment of lake water spiked, or not, with Microcystis aeruginosa cells, as well as the formation of trihalomethanes (THM) by chlorine oxidation. Coagulant doses ...
The effectiveness of chitosan as a coagulant flocculant in surface water treatment has been studied. Tests were carried out in laboratory on treated and raw water. The treated water was mixed with high and low concentrations of bentonite to simulate turbid water. This treated water provides from water treatment plant of Algiers (Boudouaou site) which is supplied by both dams of Keddara and Beni ...
Scientists continuously search for alternative coagulants that would be able to outperform traditionally used aluminium (Al) and iron (Fe). Use of a novel metal coagulant zirconium (Zr) has been associated with enhanced organic matter reduction. On the other hand, eco-friendly non-metal solutions, such as chitosan, can provide non-toxic sludge and water with no metal residue. In fact, Zr and ...
Peat water is an abundant water resource in Asia, especially in rural areas. However, it is unsuitable to be used as a commercial water supply. Monitoring peat water characteristics at Beriah swamp, Perak, recorded colour (238 PtCo), turbidity (12.86 NTU), iron (0.89 mg/L), pH (4.8) and chemical oxygen demand (COD) (27 mg/L) over the national limitation standards. In this study, surfactant ...
This paper gives an overview of the results obtained by various researchers in the treatment of various suspensions and solutions by using Chitosan as an adsorbent. Chitosan, a partially deacetylated polymer obtained from the alkaline deacetylation of chitin, extracted from shellfish has been reviewed for its application in water and wastewater. Chitosan exhibits a variety of physicochemical and ...
Passive Pre-Treatment with ChitoVan Cartridges Followed by CESF with 1.5% ChitoVan Two Chitosan-Enhanced Sand Filtration systems where implemented during the construction of a Wal-Mart Superstore and Sam's Club near Raleigh, NC. The treatment train consisted of a series of ponds with conveyance channels that utilized ChitoVan Chitosan Lactate Cartridges for treatment prior to being filtered. ...
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