Search

This document discusses innovations and new processes in the olive oil industry. It highlights the implementation of new technologies to improve olive oil extraction and quality, as well as minimize waste. The document covers various topics such as the benefits and drawbacks of using olive mill wastewater in irrigation, the importance of temperature control during olive oil production, the use of natural microtalcs to improve oil extraction yields and quality, and the production of high-value products and bioenergy from olive oil byproducts. It also explores the influence of different factors on the physicochemical parameters and composition of flavoured olive oils, as well as the effect of growing regions and processing methods on the phenolic compound profile in table olives. [Extracted from the article]

This study aimed to prepare surface amino-riched passion fruit peel (DAPFP) by amination reaction with low-cost biomaterials and use it as a biosorbent to adsorb Cr (VI). The specific physicochemical and structural properties of DAPFP were characterized by SEM, EDS, XRD, TG, Zeta, XPS, and FT-IR. The effects of pH value, initial concentration, adsorption time, coexisting ions, and temperature on the adsorption of Cr (VI) were systematically investigated. The results showed that within 90 min, DAPFP could reduce the concentration of Cr (VI) solution (1 mg/L−1) to an allowable safe level of drinking water (0.05 mg/L−1) specified by the World Health Organization. The adsorption process complies with pseudo-second-order kinetics and the Langmuir isotherm model. The adsorption capacity of the prepared biosorbent could reach 675.65 mg/g−1. The results of thermodynamic studies confirmed that the adsorption process was a self-discharging heat process. DAPFP also showed good reusability; even after being used repeatedly five times, it still showed excellent adsorption performance. FT-IR and XPS analyses showed that electrostatic attraction and reduction were the main reasons for the adsorption. By virtue of its low cost and excellent adsorption performance, DAPFP has a potential practical application as an adsorbent in treating Cr (VI) containing wastewater. [ABSTRACT FROM AUTHOR]