Results 21 to 30 of about 5,407,826 (314)

Recuperação de um solo salinizado após cultivo em ambiente protegido Reclamation of a salinized soil after cultivation in greenhouse

Revista Brasileira de Engenharia Agrícola e Ambiental, 2001
O excesso de fertilizantes e o manejo inadequado da irrigação nos cultivos em ambiente protegido, têm levado à salinização dos solos, o que resulta na redução da produtividade das culturas.
Flávio F. Blanco, Marcos V. Folegatti
doaj   +1 more source

The Investigation of Optimizing Leaching Efficiency of Al in Secondary Aluminum Dross via Pretreatment Operations

Processes, 2020
Secondary aluminum dross (SAD) is an inevitable by-product from the secondary aluminum industry and has caused serious environmental issues. In this study, the effect of pretreatment operations on the subsequent acid leaching operation was studied by ...
Feng Haigang, Zhang Guofan, Qun Yang, Xun Luobing, Zhen Siyuan, Dezhi Liu   +5 more
semanticscholar   +1 more source

To incinerate or not? - Effects of incineration on the concentrations of heavy metals and leaching efficiency of post-precipitated sewage sludge (RAVITA™).

Waste Management, 2020
The major element and heavy metal concentrations of post-precipitated sewage sludge (PPS) and its ash residue (PPA) were determined using microwave digestion followed by inductively coupled plasma optical emission spectrometry (ICP-OES) and mass ...
Sini Reuna, A. Väisänen
semanticscholar   +1 more source

Hydrochloric Acid Leaching Behaviors of Copper and Antimony in Speiss Obtained from Top Submerged Lance Furnace

Metals, 2020
Copper (Cu) has been recovered from speiss generated from top submerged lance furnace process, but it was reported that the leaching efficiency of Cu in sulfuric acid solution decreased with increasing antimony (Sb) content in the speiss.
Sujin Chae, Kyoungkeun Yoo, Carlito Baltazar Tabelin, Richard Diaz Alorro   +3 more
doaj   +1 more source

Effect of Mechanical Activation on the Leaching Process of Rare Earth Metal Yttrium in Deep Eutectic Solvents

Applied Sciences, 2022
Deep eutectic solvents (DESs) have the potential to be a lixiviant for the selective processing of metal because of their versatile complexation properties.
Xiaofen Li, Wei Li, Yuntao Gao, Guocai Tian   +3 more
doaj   +1 more source

Enhanced Recovery of Zn from Carbonate-Type Mixed Oxidized Ore (CMO) by Combining Organic Acid Leaching with Mechanical Activation

Metals, 2023
With excessive consumption of sulfide ores, using low-grade Pb-Zn mixed ores to obtain Zn has attracted more attention. Acid leaching is an effective method for Zn recovery; however, a high concentration of inorganic acid brings severe environmental ...
Hao Deng, Xuelin Pan, Fanyun Chen, Qingshan Gao, Chen Tian, Zhang Lin   +5 more
doaj   +1 more source

Assessing salinity leaching efficiency in three soils by the HYDRUS-1D and -2D simulations

Soil & Tillage Research, 2019
Author(s): Yang, T; Simůnek, J; Mo, M; Mccullough-Sanden, B; Shahrokhnia, H; Cherchian, S; Wu, L | Abstract: © 2019 Elsevier B.V. Salinity leaching is necessary to sustain agricultural production in irrigated croplands.
Ting Yang, J. Šimůnek, Minghao Mo, B. Mccullough-Sanden, Hossein Shahrokhnia, Setrag Cherchian, Laosheng Wu   +6 more
semanticscholar   +1 more source

Boosting the Recycling Efficiency of Spent Lithium‐Ion Battery Cathodes Using a Green Reductant

Advanced Energy & Sustainability Research, 2021
One major bottleneck of today's industrial hydrometallurgical lithium‐ion battery recycling processes is the limited operation efficiency, particularly for leaching Co, Li, and Ni elements.
Satchit Rose, Panpan Xu, Hongpeng Gao, Mingqian Li, Xiaolu Yu, Zheng Chen   +5 more
doaj   +1 more source

Research Status of the Effect of Typical Impurity Minerals and Ions on Chalcopyrite Leaching

Kuangchan zonghe liyong, 2022
Chalcopyrite is often associated with some impurity minerals such as pyrite, quartz, carbonateand silicate minerals, and the presence of these minerals will affect the leaching of chalcopyrite.
Hongguang Leng, Baisui Han, Mengyue Yang, Tonglin Zhao   +3 more
doaj   +1 more source

Carrollite Leaching in H2SO4-NaClO3 Media at Atmospheric Pressure [PDF]

Archives of Metallurgy and Materials, 2020
A new extraction process suitable for treating refractory CuCo2S4 under atmospheric pressure acidic leaching conditions was investigated. The effect of variables such as oxidant species, liquid-to-solid ratio, leaching time, oxidizing agent and mineral ...
Bo Dong, Jian-Hui Wu, Jun Wu, Xian-Peng Zhang, Jing-Jun Zhai   +4 more
doaj   +1 more source