Results 31 to 40 of about 368 (121)

Review of comprehensive utilization of typical ferroalloy slags [PDF]

open access: yes, 2020
Three typical ferroalloy slags, namely, silicon–manganese, nickel–iron, and chrome–iron slags, are produced in large quantities as by-products. This is because they are not efficiently utilized, which creates lots of pressure on environmental capacity ...
Fang-qin CHENG   +6 more
core   +1 more source

New way for green and low-carbon development of coal industry under the target of “daul-carbon” [PDF]

open access: yes
Under the background of “dual-carbon” goal and current technological conditions, coal, waste and carbon constitute an impossible triangle in the coal industry which severely constrains its green, low-carbon, and sustainable development.
Jianyou WANG   +10 more
core   +1 more source

Removal Impurity and Whitening of Phosphogypsum via Calcination and Acid Leaching [PDF]

open access: yes
This is an article in the field of metallurgical engineering. Large production and storage capacity of phosphogypsum has become an important factor restricting the green and healthy development of phosphorus chemical industry.
Jiaxin TIAN   +4 more
core   +1 more source

安定処理土における凍結融解に対する抵抗性と微視的構造について [PDF]

open access: yes, 1984
金沢大学理工研究域環境デザイン学系In the regions of the cold weather, the deterioration of the subbase in roads by freezing-thawing action is often observed. Although the durability of stabilized soils is considered to be important, the evaluation of the resistibility of
Hasaba Shigemasa   +7 more
core   +1 more source

Key technologies for preparation and multi scene utilization of multi-source solid waste based carbon fixation mining materials [PDF]

open access: yes
During the production of metallurgical industry and the development of coal resources, a large number of solid wastes that are difficult to be effectively utilized are produced, accompanied by surface subsidence, solid waste stockpiling and high carbon ...
Lang LIU   +6 more
core   +1 more source

Review of techniques and case studies for saline-alkali land amelioration in the coastal regions of China [PDF]

open access: yes
Soil salinization is one of the major challenges in agricultural production and ecological development. With the rapid development of China’s coastal areas, land resources are becoming increasingly scarce, creating an urgent need for the improvement and ...
Hang LYU   +5 more
core   +1 more source

Precise intelligent recognition method and application of coal-power-chemical industry sites characteristics in Yellow River Basin [PDF]

open access: yes
The Yellow River Basin is an energy basin that has the dual responsibility of ecological environment governance and economic and social development. The precise and intelligent recognition of the categories, numbers and characteristics of coal-related ...
Feng LIU   +6 more
core   +1 more source

CaSO4改良苏打碱土的离子吸附交换过程分析与数值模拟

open access: yesShuitu Baochi Xuebao, 2008
分析CaSO4改良苏打碱土的机理可以为其替代品(脱硫石膏、粉煤灰和磷石膏等)的田间应用提供理论依据。本文通过土柱试验构建了综合考虑离子吸附交换以及土壤水力传导度动态变化的多离子溶质运移方程,并利用UNSATCHEM软件进行了数值模拟。结果表明:CaSO4改良碱化土壤是一个伴随着离子吸附交换反应的复杂过程,同时受到土壤理化特性动态变化的影响,利用UNSATCHEM多离子溶质运移模型能够准确地模拟土壤溶液中Ca2 和Na 的迁移转化、土壤胶体Na 和土壤溶液中Ca2 的吸附交换过程,且其精度较高。同时 ...
王金满, 杨培岭, 白中科
doaj  

Hydration Characteristics of Excess-sulfate Titanium Gypsum Slag Cement [PDF]

open access: yes
This is an article in the field of mineral materials. Based on the experience of cementing materials composited with industrial by-product gypsum and slag , several sets of excess-sulfate titanium gypsum slag cement were designed, and the water ...
Cheng LIU   +4 more
core   +1 more source

Optimization and mechanism of wet desulfurization with fly ash based on response surface [PDF]

open access: yes
To investigate the desulfurization effect and mechanism of fly ash as a desulfurized, single factor experiment and response surface method were used to analyze the parameters of ash slurry solid-liquid mass ratio , SO2 volume fraction, and gas flow rate,
Kai JU   +7 more
core   +1 more source

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