The scope includes design and engineering, procurement, and complete site services, covering installation and commissioning ...

By leaching coal ash in stages, or step-leaching, different materials can be targeted, such as rare-earth elements and ...

The idea is to make sure nitrogen, phosphorus and potassium, which are found in fertilizers, are applied in the right ...

While the majority of Midwestern farmers rotate corn and soybeans, commodity prices and corn yield advantages compel some to ...

A two-stage process of recovery of zinc-lead-silver from zinc leaching residue was investigated. The stage of sulfated roasting-water leaching of zinc leaching residue was applied to recovery zinc by ...

Leaching occurs in metals recovery, in contaminated soil washing, and in many natural processes, such as fertilizer dissolution and rock weathering. This paper presents a model developed to simulate ...

The increasing global demand for platinum-group metals (PGMs) from the automotive, electronics, and hydrogen fuel-cell industries necessitates efficient recycling technologies for materials containing ...

Nitrate leaching occurs when N deposition (input) and net mineralization (N status) exceed plant demand. A combined N flux to the soil of 50 to 60 kg ha−1 a−1 from N deposition and litterfall may be a ...

Cleve Lightfoot, former head of innovation at BHP and ex-Glencore general manager, joins board as an advisor.

Background and aims It is so far a gap in knowledge to assess nitrate (NO₃⁻) leaching loss linking with crop yield for a given cereal cropping system. Methods We conducted a meta-analysis on 32 ...