Results 31 to 40 of about 661 (156)
Preparation of biochars from biogas residue and adsorption of ammonia-nitrogen in biogas slurry [PDF]
, 2014 以生物产甲烷的副产物沼渣为原料,用5种不同的方法通过化学活化法制备生物炭,实验结果表明5种生物炭对沼液中的氨氮都有吸附效果,而氢氧化钾活化制备的生物炭(kOH-CC)对氨氮的吸附效果相对较好,吸附剂对氨氮的吸附符合准二级吸附动力学,吸附等温线表现为lAngMuIr型,通过拟合计算最大吸附容量能达到120 Mg·g-1。对生物炭进行bET、扫描电镜及红外等表征,分析了kOH-CC生物炭吸附氨氮过程的作用机理。Five types of biochars were prepared through ...
何宁 +6 more
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Global status, impacts, and management of rocky temperate mesophotic ecosystems
Conservation Biology, Volume 38, Issue 1, February 2024.Abstract The ecology and function of rocky temperate mesophotic ecosystems (TMEs) remain poorly understood globally despite their widespread distribution. They typically occur at 20–150 m (the limit of photosynthesis), and on rocky substratum they support rich benthic communities and mobile fauna.
James J. Bell +5 more
wiley +1 more source
Research Progress of Biochar Based Materials and Their Applications Using Electrochemical Sensors [PDF]
Electrochemical sensors have become a research hotspot in the field of analytical chemistry due to their high sensitivity, good selectivity, and fast reaction rate.
Baoli WANG +3 more
core +1 more source
Mejores prácticas de manejo para el uso optimizado del suelo y el agua en la agricultura [PDF]
, 2021 Chinese translation: Yun Xie, Lixin Chen, Jie Tang, Zhaoqi Fu, Meng Zhang, Hanlin Dong.English version available at http://dx.doi.org/10.20350/digitalCSIC/13964Spanish version available at http://dx.doi.org/10.20350/digitalCSIC/13985在Shui项目框架下 ...
Chen, L. +9 more
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GCB Bioenergy, Volume 16, Issue 1, January 2024.The use of biochar increased greenhouse gas (GHG) emissions but countered the harm caused by GHG emissions by considerable soil carbon sequestration resulting in a negative carbon footprint. Furthermore, the use of biochar lowered the proportion of CH4 and N2O, demonstrating that biochar usage has a considerable positive effect on GHG emissions ...
Zhuoxi Chen +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2023 为了揭示生物炭改良土壤孔隙的复杂结构及其影响因素,以江苏滨海盐渍土为研究对象,采用添加生物炭改良盐渍土,设置0,2%,5%(占表层0-20 cm土重比)3个生物炭添加水平。每年10月在水稻收割后,采用塑料环刀取表层(0-20 cm)原状土,进行Micro-CT扫描获取土壤CT孔隙序列。基于多重分形去趋势波动分析理论,并结合数据重排,分析施加生物炭对CT孔隙序列多重分形特征及其来源的影响。结果表明,所有处理的CT孔隙序列的复杂度均随着年份增长;2%生物炭处理的CT孔隙序列的复杂程度较0和5 ...
孙枭沁, 佘冬立
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Shuitu Baochi Xuebao, 2022 土壤表面电化学性质是土壤具有肥力的重要基础, 研究小麦秸秆及其生物炭添加对黄绵土表面电化学性质的影响, 可为黄绵土耕地质量的提升及可持续利用、减少土壤侵蚀提供重要的理论及实践依据。通过室内恒温培养试验, 设置对照(CK)、1%秸秆(J1)、3%秸秆(J3)、5%秸秆(J5)、7%秸秆(J7)、10%秸秆(J10)和1%生物炭(S1)、3%生物炭(S3)、5%生物炭(S5)、7%生物炭(S7)、10%生物炭(S10)11个处理。培养10个月后采集土壤样品, 采用物质表面性质联合测定法测定表面电化学参数 ...
涂坤 +7 more
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Experimental Study on the Removal of SO2, NO and Hg0 from Coal-fired Flue Gas by Plasma Oxidation-Activated Carbon Adsorption Technology [PDF]
, 2017 燃煤烟气中的SO2、NO和Hg0通常采用在燃煤锅炉后分设烟气脱硫、烟气脱硝和活性炭喷射装置来实现控制。这种分级治理模式存在占地面积大、投资和运行成本高、烟气系统稳定性差等问题。本文在总结各种污染控制技术的基础上，提出了一种等离子体氧化与活性炭吸附结合的同时脱硫脱硝脱汞工艺，即：燃煤烟气中的SO2、NO和Hg0先通过等离子体氧化为易处理的SO3、NO2和Hg2+，再利用活性炭吸附氧化产物，实现多污染物一体化脱除。 本文以玉米秸秆为原材料，通过热解炭化和等离子体改性制备了一种高效脱汞吸附剂 ...
牛强
core
The Impact of Mixed Application of Modified Straw Biochar and Organic Fertilizer on Soil Water Retention and Fertility Maintenance in the Loess Hilly Dry Area [PDF]
[Objective] This study aimed to investigate the effects of different modified corn straw biochars on the water retention and fertilizer conservation capacity of arid loess soil and their effects on crop growth.
CHANG Fangling +5 more
core +1 more source
Shuitu Baochi Xuebao, 2022 为解决水稻生产过度依赖化肥及其环境和高效利用问题,探讨贵州黄壤稻田科学施用生物炭。在贵州省思南县典型黄壤稻田开展氮肥不减量(T0)和氮肥减10%施2.5 t/hm2(T1),氮肥减20%施5.0 t/hm2(T2),氮肥减30%施7.5 t/hm2(T3),氮肥减40%施10.0 t/hm2生物炭(T4)和不施肥对照(CK)共6个处理3次重复田间小区随机区组试验,研究了氮肥减量施生物炭对水稻产量、产量构成和氮磷钾养分吸收利用的影响。结果表明,氮肥减量施生物炭显著影响贵州黄壤稻田水稻产量、产量构成 ...
段建军 +7 more
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