in the present study, hydrilla verticillata biomass was investigated as a novel biosorbent for the uptake of basic dye malachite green from its aqueous solution. kinetic and equilibrium studies were carried out in batch process. batch adsorption experiments were conducted to study the effect of ph, temperature, sorbent dosage, initial dye concentration, and contact time for the removal malachit...

Despite positive aspects of energy consumption, their negative externalities i.e., environmental pollutions, are considerable. Green taxes, paid for products and services that are not environmentally friendly, are recommended as an efficient way of improving health indices. Since, Iran is among the countries with high per capita consumption of energy, pollution can be a kind of threat. In this ...

The purpose of this supplement is to establish the strong connection between the continuous-time model of Daley and Green (2011) and a discrete-time analog. First, when time periods are short, there exists an equilibrium with nearly identical structure to Ξ(α, β) (the equilibrium of interest in Daley and Green (2011)). Second, this equilibrium is unique among stationary equilibria satisfying a ...

The interactions between an anionic dye, Acid Green 25 AG and the two cationic surfactants tetradecyltrimethylammonium bromide TTAB, and hexadecyltrimethylammonium bromide CTAB in aqueous solutions far below the CMC are studied using the conductometric method at different temperature. The equilibrium constants and other thermodynamic functions for the process of dye-surfactant ion pair formatio...

The direct association between air pollution and morbidity and mortality rates has been proved. This major environmental risk factor has been mainly due to extensive use of fossil fuels. Increasing pollution caused by fossil fuels can threaten human health. This study simulated the effect of green taxes on Iran’s health indicators, i.e., mortality and morbidity. We used a Computable General Equ...

the experimental studies of methane conversion to higher hydrocarbons and methanol using a dielectric barrier discharge (dbd) reactor are presented in this article. the process is carried out at ambient atmospheric pressure and temperature. the dbd reactor is stimulated by an alternative voltage of 50 hz and amplitude of max.23kv. the examination of the effect of voltage and flow rates on metha...