Evidence of electronic influence in the adsorption of cationic and zwitterionic dyes on zeolites.

The adsorption of a cationic dye, Methylene blue (MB), and a zwitterionic dye, 8-Hydroxyquinoline (8-HQ), onto zeolites synthesized from different clays has been investigated. The presence of certain metals and the Si/Al ratio of the parent clay has an overall effect on the type of zeolites produced. Zeolites LTA and FAU Y were obtained using the hydrothermal method.

Influence of vermifiltered wastewater on the morphological, physiological and biochemical developments of Zea mays, Triticum aestivum and Sorghum bicolor seed germination.

Background: Reclaimed wastewater is a potential source for irrigation, although its effect on seed germination and plant growth has not been widely investigated. The present study focused on treating wastewater by vermifiltration and investigating the effect on seed germination and seedling development of Zea mays, Triticum aestivum and Sorghum bicolor and their morphological, physiological and biochemical developments. A filter bed was constructed using indigenous and improved materials.