Analyzing heavy metal contamination for one of the high-rate consumption fruits in Iran: A probabilistic health risk assessment.

Good health and well-being is one of the sustainable development goals (SDGs) that can be achieved through fruit consumption. This study measured cucumber (Cucumis sativus L.) heavy metal concentrations.

Phytosynthesis of Cu/rGO using extract and study of its ability in the reduction of organic dyes and 4-nitrophenol in aqueous medium.

For the first time, copper nanoparticles (Cu NPs) superficially deposited on reduced graphene oxide (rGO) using leaf aqueous media. A beneficial series of analytical methods was used to characterise leaf extract and involved nanostructures. The Cu/rGO nanocomposite (NC) obtained from the conversion of Cu ions to Cu NPs and GO to rGO undergoes the plant extract and used as a heterogeneous and reusable nanocatalyst for the destruction of 4-nitrophenol, rhodamine B, methylene blue, methyl orange and congo red using sodium borohydride at ambient temperature.

Confirmation of monod model for biofiltration of styrene vapors from waste flue gas.

Background: The objective of this research was to investigate the kinetic behavior of the biofil¬tration process for the removal of styrene.

Methods: A three stage compost based biofilter was inoculated with thickened activated sludge. The reaction order rate constants were obtained from continuous experiments and used as the specific growth rate for the Monod equation.