Biological improvement is a sustainable approach for saline–alkali land amelioration and utilization. Echinochloa frumentacea (Roxb.) link salt-tolerant gramineous forage, which plays an important role in improving land. The Hetao Ningxia Plain located the upper–middle reaches of Yellow River with large area soil, where E. has potential applications Three experiments were conducted on Pingluo C...

Incineration bottom ash is generated by the incineration of solid waste. Household waste increasing every year and so ash. This a problem to treat because has many toxic components. Cement composites can solve this there are studies for using as fine aggregate. To evaluate usage ash, compressive strength, mercury intrusion porosimetry, scanning electron microscopy-backscatter electron, X-ray di...

The in-service condition of steel fiber-reinforced shotcrete installed more than 20 years ago as single-shell rock support lining in the Nordkapp subsea road tunnel was investigated. novelty this study is comparison with water–glass and alkali-free activators a saline groundwater environment. lowest density obtained at joints between two adjacent layers. In case accelerator, ettringite enrichme...

The photovoltaic industry generates large amounts of waste graphite (WG) that contains useful metals can be recycled into high-value products. This study elucidated the impurity elements and their existence states in WG, analyzed verified source main phase SiC, determined SiC content to 4.66%. WG was purified using an alkaline-acid method, whose optimal process parameters were a solid alkali ra...

Discarded Waste-SCR (selective catalytic reduction) catalysts not only harm the natural environment, but also hinder recovery of valuable metals such as V, W, and Ti, thus resulting in a waste resources. Therefore, it has become imperative to dispose large amounts. This study aims develop complete, eco-friendly, economical process dealing with catalysts. In this process, V W from was achieved s...

This article deals with the possibility of partial replacement blast furnace slag (GGBFS) fly ash after denitrification (FAD) in alkali-activated materials. Physical-mechanical and durability properties were tested, hydration reaction was monitored, infrared spectroscopy performed. Results compared between mixtures prepared without (FA), also a mixture based only on GGBFS. The basic result is t...

Abstract The technical and environmental aspects of treating electric arc furnace dust (EAFD) using a novel process including alkaline roasting organic acid leaching were evaluated compared to the globally applied conventional Waelz process. global warming potentials roasting–organic (with co-product credits) processes 7.48 4.71 kg CO 2 -eq with 33% Zn as feed material. However, decreasing cont...