Results 1 to 10 of about 141 (111)
Effects of Desulfurized Gypsum Applied Combined with Polyglutamic Acid on Improving Saline Soil [PDF]
, 2023 [Objective] The effects of desulfurized gypsum and polyglutamic acid (γ-PGA) improves saline soil were studied in order to provide a theoretical and technical basis for improving saline soil in Northwest China.
Li Hongyi +4 more
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Effect of Soil Conditioner Interface Modification on Migration Characteristics of Saline-Alkali Ions in Irrigation Area of Yellow River [PDF]
, 2023 [Objective] Through the treatment of hydrophilic and hydrophobic by the conditioner, the influence of different interface characteristics of the conditioner on the soil water and salt transport law was explored, and the improvement mechanism of fly ash ...
Chen Xiangyu +5 more
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Simulation of Soil N2O Emissions Under Different Soil Moisture Conditions by Using Mixed Dynamic Equation [PDF]
, 2023 [Objective] Soil moisture has an important impact on N2O emissions. This study attempted to simulate the cumulative process of soil N2O emission under different soil moisture conditions by using a mixed dynamic equation, and to analyze the influence of ...
Duan Shufang +6 more
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Shuitu Baochi Xuebao, 2022 为探明添加脱硫石膏对盐碱土水分运动参数的影响,以改善和提高银川北部地区土壤结构和土地生产力,进行了室内一维水平土柱吸渗试验。选取6种脱硫石膏添加比例0,1.5%,3%,4.5%,6%和7.5%,探究不同脱硫石膏添加比例下盐碱土水平吸渗特征及水分运动参数的变化。结果表明:脱硫石膏添加减缓了土壤水分入渗过程,随着脱硫石膏添加比例增加,各处理累积入渗量与湿润锋运移距离均逐渐减小。幂函数与Philip模型能较好地拟合不同脱硫石膏添加比例下盐碱土水分吸渗特征,吸渗率随脱硫石膏配比增加逐渐减小 ...
高小龙 +3 more
doaj +2 more sources
The effect of fluorogypsum on the properties of high-water filling materials [PDF]
, 2023 Filling mining is an important way to realize the green development of mines. High-water filling materials have been widely used because of their short setting time.
Huijuan LU, Yujie YANG, Yuli WANG
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Self-healing characteristics of fracture in sealing materials based on self-healing effect [PDF]
, 2023 Cement-based materials are the most commonly used grouting and sealing materials in underground coal mines, but due to the effects of stress perturbation as well as water loss and shrinkage of cementitious materials, the traditional cementitious ...
Banghua YAO +4 more
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Solidification/stabilization of Pb2+ within a blast furnace slag-steel slag based cementing agent for paste backfilling [PDF]
, 2016 Backfilling material specimens were prepared with Pb-bearing ore tailings and a blast furnace slag-steel slag based cementing agent(BSCA) used as a replacement for cement in traditional backfilling materials.
HUANG Xiao-yan +5 more
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, 2020 pdf本ガイドラインは，平成 29～30 年度の 2 カ年にわたって実施された環境研究総合推進費「廃石膏ボードリサイクルの品質管理の在り方と社会実装（3-1702）」にてとりまとめたものである． (本文より ...
80 +2 more
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Shuitu Baochi Xuebao, 2021 增加陆地生态系统碳固定能力能有效缓解大气CO2升高引起的温室效应。以干旱区典型盐土和碱土为研究对象，通过室内土柱模拟试验，研究不同施用量脱硫石膏（0，10，20，21.78，30，40 t/hm2）对盐土和碱土生态系统碳储量（包括土壤碳储量和生物量碳储量）的影响。结果表明：与对照相比，施加脱硫石膏盐土总碳储量（C）降低8.78%~15.72%，其中以土壤有机碳储量降低为主；碱土总碳储量（C）增加5.00%~23.94%，其中以土壤无机碳增加为主。脱硫石膏施加后盐土总生物量碳储量（C）较对照平均降低23 ...
王著峰 +3 more
doaj
Zhejiang Daxue xuebao. Lixue ban, 2013 针对目前国内含钙类废物种类复杂、环境危害大且缺乏合理综合利用技术指导的现状，选择浙江省典型污染企业，调查了不同行业含钙类废物物化特性指标，探讨其对水泥资源化综合利用技术的影响，并提出了水泥资源化处置的优化方案.结果表明，不同行业含钙类废物的细度、有机质质量分数等指标相对稳定，CaO、SO3、含水率指标变化幅度较大.含钙类废物水泥资源化可行性分析表明：干湿法电石渣和印染污泥适合煅烧硅酸盐水泥熟料，氟石膏、脱硫石膏适合煅烧硫铝酸盐水泥和用作水泥缓凝剂；所调查的8类废物均不适宜作水泥掺合料；当电石渣掺量为60%
CHENYing-qiang(陈应强) +8 more
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