The present paper has virtual importance on the physicochemical characteristics of both underground water and surface water in various places of Coimbatore in the summer season (March-June 2021). The surface water tests were gathered from near lakes around Coimbatore, Pollachi, and Tirupur the underground water was gathered from near, Pollachi, Coimbatore, and Tirupur. The physicochemical properties such as Dissolved Oxygen, TDS, pH, Turbidity, Alkalinity, Calcium, Total hardness, Chloride, Nitrates, Nitrites, Fluorides, Potassium, and Sodium were tested. The outcome results showed that the analyzed ground and surface water is fit for domestic purposes and not for drinking purposes.
In this present study, formaldehyde-treated Simarouba glauca seed shell powder, a low-cost agricultural byproduct, was used as the adsorbent for the removal of cationic dye malachite green (MG) from aqueous solutions. The adsorbent was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, XRD, BET, and CHNS analyses. Batch mode adsorption studies were carried out under various experimental conditions such as agitation time, dye concentration, adsorbent dose, and pH to assess the potentiality of the adsorbent for the removal of MG from wastewater. Optimum adsorption of MG was found to be at pH 8 for an equilibrium time of 60 min with an adsorbent dose of 0.15 g. The experimental data were analyzed using Langmuir, Freundlich, Temkin, and DubininRadushkevich isotherms. The data fitted well with Langmuir model with a maximum adsorption capacity of 125 mg/g. Kinetic data were analyzed using pseudo-first-order, pseudo-second-order, and intraparticle diffusion models. The experimental results showed that the pseudo-second-order model fits well.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.