Soil nutrients in deep soils are important for nutrient cycling and plant growth. Organic amendments have been widely used enhancing soil health crop yield. However, little is known about the effects of organic on vertical distributions nutrients. Based a 32-year long-term amendment experiment, objective this study was to evaluate changes distribution soybean–wheat system Vertisol. The results ...

Because tires contain approximately 1-2% zinc by weight, zinc leaching is an environmental concern associated with civil engineering applications of tire crumb rubber. An assessment of zinc leaching data from 14 studies in the published literature indicates that increasing zinc leaching is associated with lower pH and longer leaching times, but the data display a wide range of zinc concentratio...

Abundant carbon resides in spent cathode (SCC) of aluminum electrolysis and its high-purity powder is conducive to high-value recycling. The alkali-fused SCC was separated effectively purified using an HCl/NaF solution. Effects particle size, leaching temperature, time, initial acid concentration, sodium fluoride dosage, on the purity removal rate, were investigated. Using as research object, k...

Recovery of valuable metals from red mud smelting separation slag is important for environmental protection and saving natural resources. In this paper, we propose a recycling process by mineral phase reconstruction conducted under an air atmosphere. process, NaOH Ca(OH)2 roasting Al2O3 NaAlSiO4 was performed, SiO2 were converted into alkaline-soluble NaAlO2 Ca2SiO4, respectively. the consequen...

With the increasing shortage of water resources, current management saline–alkali lands in semi-arid and arid areas has gradually transformed from “flooding irrigation with drainage” past to combination controlling regional salt balance, phytoremediation, comprehensive utilization halophyte resources. However, soil salinization caused by natural anthropogenic factors still been a major global e...

Leaching is an unavoidable phenomenon associated with the pesticide applications. Leaching of pesticide does not only indicate the efficiency of a pesticide molecule, but also degree of the environmental contamination. Leaching is the process by which a pesticide molecule enters the soil-water ecosystem. Hence, to access the leaching behavior of a pesticide molecule, various models are used glo...

The sustainability goals of the developing world have led many industries to recycle their wastes and reduce emitting greenhouse gases. To contribute these environmental responsibilities, this study has focused on development eco-friendly binder materials from regional ground tuff marble by activation Na2SiO3 NaOH or slaked lime (Ca(OH)2). results show that alkali-activated composites tend expa...

This study aims to investigate the chloride diffusion behavior of alkali activated slag and fly ash blends with different contents waste glass powder (GP) addition. The reaction heat flow slag/fly ash/waste is characterized. products are determined by X-ray diffraction thermogravimetric analysis (TGA). N2 adsorption (BET) used evaluate microstructure samples. accelerated penetration test (ACPT)...

Abstract To realize the utilization of andesite tailings and solve environmental problems caused by municipal solid waste incineration (MSWI) fly ash, both them were selectively used as raw materials to prepare glass ceramics sintering process. The effects components on properties analyzed. results showed that glass-ceramic sample 21 prepared from MSWI ash had best performance, bending strength...