The amount of sludge produced in wastewater treatment plants (WWTPs) has increased over the years, and methods used to reduce this waste, such as incineration, agricultural use, or disposal landfills, cause problems secondary pollution. For reason, it is necessary find sustainable low-cost solutions manage waste. Additionally, emerging priority pollutants are attracting attention from scientifi...

The main aim of this study was to perform a parametric for treating model dye containing wastewater (i.e., methylene blue, MB) using locally available biomass wastes in Palestine as the adsorbent. Eight different types biomasses were investigated batch adsorption tests, including coffee grains, almond shells, pistachio date pits, jute sticks, sunflower peanut and grapevine sticks. experiments c...

The solvated title compound, [ZnCl2(C20H17BrN2)]·0.5CH2Cl2, comprises a bidentate imino-pyridine ligand and two Cl atoms bound to a zinc2+ cation in a distorted tetra-hedral arrangement. The chelate bond lengths are consistent with localized C=N double bonds and a C-C single bond, as expected for an unreduced ligand bound to a closed-shell transition metal cation. Apart from weak nonclassical C...

Abstract: Bitter almond shells (BAS) were inspected as a low-cost precursor in producing activated carbon (AC) through the optimized ZnCl2 activation route. The raw BAS impregnated with at multiple ratios (1:1 - 3:1 ZnCl2:BAS), followed by carbonization various temperatures (400 – 800 °C) for different durations (30 120 minutes) tubular reactor. typical AC sample was prepared using 1:1 ZnCl2:BA...

results results showed that dex 1 significantly increased, while dex 30 and groups treated with zinc 10 mg/kg and zinc 20 mg/kg decreased total immobility time as compared to that of saline group. also there was a significant decrease of total immobility time when zinc administered to rats already received dex 1, compared with that of control group. conclusions the current study findings sugges...

This work pioneers the thermocatalytic conversion of tagua seeds (or ivory nut) from palm Phytelephas aequatorialis into key chemical building blocks, being levoglucosenone, furfural and levomannosan. Annually, ca. 100,000 metric ton those are produced in Ecuador. Mannan (a mannose-polymer similar to cellulose) is main constituent tagua. Thermocatalytic conversions were first explored on analyt...

The stereoselective aldol reaction represents one of the major challenges of modern synthetic organic chemistry.1 Many useful methodologies have been reported during the last few decades. For instance, 1,2-asymmetric induction in the aldol reaction of a-alkoxy aldehydes with silyl enol ethers or ketene silyl acetals is well-established.2 The aldol reaction between a-alkoxy aldehydes and a malon...