The moisture sorption isotherms of Clinacanthus nutans (C. nutans) herbal leaves were established at three different temperatures 30°C, 40°C, and 50°C, water activity between 0.3–0.9 using a static gravimetric method. results showed that equilibrium content C. increased with increasing constant temperature for both desorption adsorption isotherms. In contrast, the decreased when all exhibited T...

The recovery and removal of the most organic acids in liquid solutions is usually treated with fixed-bed adsorption processes. Among many adsorbents, Granular Activated Carbon (GAC) is used to remove organic pollutants such as Benzoic Acid (BA) from wastewaters conventionally. In this research, adsorption isotherm curves of BA onto GAC at varying temperatures 25-60 °C are developed and the ...

Temperature and relative humidity (RH) are two major external factors, which affect equilibrium moisture content (EMC) of wood-plastic composites (WPCs). In this study, the effect of different durability treatments on sorption and desorption isotherms of southern yellow pine (SYP)-high density polyethylene (HDPE) composites was investigated. All samples were equilibriumed at 20 °C and various R...

This paper deals with modeling the suitability of novel adsorbents in terms of the isotherm constants and temperature. Two different models viz., Linear Regression Model (LRM) and Model based on Normalized Sum of Squares (NMSS) are used. A database comprising of 120 data points (DB-1) pertaining to Freundlich constants is compiled from literature to find out the trends of n and k on Temperature...

Isotherm equation is one of the important scientific bases for adsorbent selection. There are different isotherms that do not account for an adsorbate, different chemisorption geometries on the nanoporous surface. It is interesting to introduce a general isotherm, which considers different chemisorption geometries of an adsorbate on nanoporous surfaces. In this study, an isotherm for non-dissoci...

Activated carbon prepared from coir pith (ZnCPC) using ZnCl2 was investigated to find the feasibility of its application for removal of 2,4–dichlorophenol (2,4-DCP) in aqueous solution through adsorption process. Batch mode kinetics and isotherm studies were carried out to evaluate the effects of contact time, initial concentration, adsorbent dose, pH, and temperature. Lagergren, Second order, ...