Results 21 to 30 of about 561 (87)
Research Progress on Key Technologies for Coupled Combustion of Coal and Solid Waste in Coal-Fired Unit [PDF]
, 2023 [Introduction] The co-combustion of coal and solid waste can not only realize the energy recycling of solid waste, but also is one of the paths to realize carbon emission reduction of coal-fired power generation. [Method] This paper reviewed the study on
Hongpeng XU +5 more
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Shuitu Baochi Xuebao, 2017 为研究煤矿区用矸石作为垫底基质进行土壤剖面重构土壤水分再分布过程和剖面热扩散与气体浓度变化特征，以指导工程设计和重构土壤熟化技术应用，在实验室设计了一种煤矿区重构土壤水气热运移模拟装置，通过布设在土柱系统不同深度的温湿度传感器和CO2浓度检测仪，连续监测重构土壤剖面含水量、温度和CO2浓度。结果表明：煤矸石层具有良好的阻水性，阻碍水分的入渗，增加上层土壤的持水能力。但是，煤矸石的持水性差，煤矸石层的含水量远低于土壤层10%左右；煤矸石具有更佳的热扩散性，在加热过程中煤矸石层的温度远大于土壤层 ...
王, 陈清华
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Research progress on in-situ intelligent sorting and filling technology of coal gangue underground [PDF]
Coal gangue needs to be transported to the ground for further treatment in traditional underground mines, which not only occupies land spaces, but also causes atmospheric and environmental pollutions due to spontaneous combustion and rainwater leaching ...
Fengqi GUO +4 more
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Shuitu Baochi Xuebao, 2000 利用网格布点取样法采集抚顺矿区老虎台井田煤矿北部矸石回填垦还田生态重建试验区不同覆土类型、不同土壤深度、不同覆土年龄的土壤样品，对矿山复垦土壤的重金属元素的时空变化进行研究。结果表明，矸石回填覆土后，重金属元素含量呈逐年递减趋势；施（培）肥造成了重金属元素含量表层高于30cm和60cm土层；覆土中重金属元素主要来源于外界输入；矸石母质中的重金属不存在对覆土耕作层的污染问题。
于君宝 刘景双 等
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Mechanical Properties of Gangue-steel Slag-ore Powder Mixture [PDF]
In order to explore the mechanical properties of the coal gangue-steel slag-ore powder mixture without alkali initiator, the solid waste materials coal gangue, steel slag and mineral powder produced in Handan Area were taken as the research objects, and ...
Hanlong CUI +4 more
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Shuitu Baochi Xuebao, 2018 煤矸石是一种潜在的资源，在现有技术条件下无法快速处理的大量煤矸石裸露堆放造成占地及生态环境问题，已成为矿区生态环境治理关注的热点。煤矸石山的植被恢复是其原位保存的最有效办法。腐殖酸作为腐殖质的主要组成成分对改善不利的植物生长环境具有积极作用。为探讨腐殖酸对煤矸石养分释放的影响，采用室内培养试验方法，研究了添加不同浓度腐殖酸及不同培养时间下煤矸石的pH、电导率（EC）变化及氮、磷、钾速效养分的释放特征。结果表明：相对于不添加腐殖酸处理（CK），添加腐殖酸的煤矸石pH明显升高，最高达到7.77 ...
余健 +7 more
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Progress Analysis and Development Prospects of Soil Ecological and Environmental Effects of Interlayer Construction [PDF]
[Objective] This study systematically summarized and analyzed the current application status, technical characteristics, and environmental benefits of interlayer construction in soil improvement, nutrient cycling, ecological restoration, and crop ...
CHEN Jihong +7 more
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Shuitu Baochi Xuebao, 2001 试验研究表明 ,煤矸石沙障对沙地土壤有明显的改良作用 ,使沙地土壤中细粒物质增加 ,土壤水分含量提高 ,土壤结构发生改变 ;土壤中有机质、全 N、速效 P、速效 K含量显著增加 ,分别是流沙对照地的 2 .6 5 ,2 .6 6 ,1.30 ,1.2 4倍。同时 ,分析结果表明 ,障蔽规格对土壤养分、水分的影响较显著 ,而矸石粒径影响不显著。
高国雄 李广毅 等
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Shuitu Baochi Xuebao, 2018 为探究煤矸石对盐碱土壤绿化的改良效果和对土壤微生物的影响，将不同用量（0，10%，20%，30%，40%，50%）和不同粒径（小粒径5 mm，以及小中大粒径等比例的混合粒径）煤矸石施用于盐碱土壤，进行紫花苜蓿盆栽试验，测定紫花苜蓿株高、生物量以及土壤微生物量和酶活性指标。结果表明，不同粒径煤矸石处理的土壤微生物量碳氮，土壤的脲酶、过氧化氢酶、脱氢酶活性，以及紫花苜蓿株高、生物量均随着煤矸石用量的增加呈先增大后降低的趋势，混合粒径、小粒径、中粒径、大粒径煤矸石处理的盐碱土上述指标分别在20%，20%，30%
孔涛 +5 more
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A key technology for synergistic backfilling of coal-based solid waste and high-salinity wastewater [PDF]
Background and Objective Limited by locations, as well as economic and technical levels, most of the coal-based solid waste is still accumulated in the form of open-air landfills without treatment, thus occupying large quantities of land resources and ...
Boqiang WU +9 more
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