A novel adsorption material was synthesized and characterized by the methods of X-ray diffraction and scanning electron microscopy. The optimum reaction conditions of the 8-hydroxyquinoline modified bentonites were studied. And the modified bentonite was applied into the treatment of dyeing wastewater. The decoloration rate was invested as index. The effects of pH, adsorbent dosage, stirring speed, sedimentation time on adsorption have also been studied. The result showed that the decoloration rate of direct light turquoise blue dye on modified bentonites reached 94.12%, and the decoloration rate of acid orange dyeing wastewater reached 74.46%. So this type of modified bentonite was suitable for the treatment of dyeing wastewater.

The electromagnetic parameter of common textile materials has not reached the order of magnitude of metals or semiconductors [1]. They generally do not own any electromagnetic function. In the article, the concept of electromagnetic textile material and its basic preparation method are proposed. Finally, the application of electromagnetic textile materials is briefly introduced [2].

Multilayer ZnO varistors were prepared by aqueous gel tape casting with water-soluble acrylamide as binder. 0.8wt% PAA dispersant was found to be the optimum concentration needed to prepare stable slurry. Plasticizer glycerol has a positive effect on the fluidity of the suspension and oxygen anti-polymerizing inhibitor PEG 2000 deteriorated the fluidity. The addition of 15wt. % PEG2000 eliminates the surface exfoliation absolutely due to the oxygenation of ether units. The solid loading of the slurry was about 71wt% compared to the custom acrylic formulation binder 60wt%. The multilayer ZnO varistors prepared by aqueous gel tape casting display comparable good electrical properties to those prepared by water-based tape casting using custom acrylic formulation binder which is attributed to the high solid loading of slurry.

The present study deals with comparative evaluation of three different aquatic macrophytes, i.e. Myriophyllum spicatum, Sagittaria sagittifolia and Pistia stratiote planted at three different concentrations (1.0, 3.0 and 5.0 mg/L) of metals in laboratory experiment for Cd, Cu and Zn removal from aqueous solution. Result revealed high removal (>90%) of different metals during 15 days experiment. Highest removal was observed on 13th day of experiment, thereafter it decreased. Results revealed Pistia stratiote as the most efficient for the removal of selected heavy metal followed by Sagittaria sagittifolia and Myriophyllum spicatum. Selected plants can be used for large scale removal of Cd, Cu and Zn from waste water.