Results 1 to 10 of about 42,005 (153)
Zhejiang Daxue xuebao. Lixue ban, 2022 同步脱氮除硫工艺以硝态氮作为电子受体，硫化物作为电子供体，通过以废治废，去除氮硫污染物。本文构建了双室型微生物燃料电池（microbial fuel cell，MFC），将同步脱氮除硫工艺与MFC相结合，在处理废水的同时生产电能。与化学对照组相比，该同步脱氮除硫MFC具有高基质去除性能和产电性能。当进水硝态氮和硫化物的浓度分别为95.54和540 mg·L-1，反应时间为20 h时，硝态氮和硫化物的去除率分别高达96.50%和99.64%；最大电流密度达457.20 mA·m-2，稳定电流密度为30 ...
CAIJing(蔡靖) +5 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
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Shuitu Baochi Xuebao, 2005 由于脱硫副产物的主要成分为CaSO4,因此可以用来改良碱化土壤。通过盆栽试验研究了脱硫副产物对碱化土壤的改良效果,试验设8个处理,4个脱硫副产物水平(0,7 5,15,22 5t/hm2)和2个淋洗水平(750,1200m3/hm2)。研究表明:施加脱硫副产物增加了葵花的出苗率,降低了碱化土壤的碱化度(ESP)、pH、全盐量(TDS)和Na K /Ca2 Mg2 ,但过量施加脱硫副产物也会抑制作物的出苗和生长;淋洗可以提高脱硫副产物的改良效率。根据试验结果推测当ESP=63 5,pH=9 15时 ...
王金满 杨培岭 石懿 任树梅
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Gongye shui chuli, 2023 在分析脱硫废水水质特点，以及调研排污许可证中脱硫废水去向和污染物排放执行标准的基础上，论述了脱硫废水达标处理、厂内回用和零排放的技术路线。排污许可证基本不允许脱硫废水外排，并对脱硫废水车间排放口水质进行了严格限定。约80.0%电厂的污染物因子和限值按《火电厂石灰石-石膏湿法脱硫废水水质控制指标》（DL/T 997—2006）执行，部分电厂增加了氨氮污染物因子控制指标、下调了氟化物和COD限值。脱硫废水达标处理，一类污染物重金属主要采用化学沉淀法去除，二类污染物氟化物采用复合盐沉淀技术去除 ...
胡大龙 +5 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou +5 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Tellurium (Te), emerging as a promising alternative to sulfur (S) and selenium (Se), offers significant advantages for potassium (K) ion storage due to its comparable theoretical volumetric capacity (2619 mAh cm−3) and higher electronic conductivity (∼102 S m−1), which promotes rapid charge transfer and improves reaction kinetics.
Sung Woo Cho +7 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Photocatalytic molecular oxygen (O2) activation provides a sustainable approach to produce singlet oxygen (1O2) for organic contaminants detoxification. However, the charge carriers‐involved pathway usually suffers from unsatisfactory 1O2 production efficiency owing to energy loss caused by photogenerated hole‐mediated superoxide species (•O2−
Yan‐Biao Shi +8 more
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Developing efficient and sustainable energy conversion technologies is crucial for addressing the global energy and environmental challenges. As a promising clean energy conversion strategy, the electrocatalytic methanol oxidation coupled with cathodic hydrogen production provides a pivotal path to solve the above problems.
Tao Chen +4 more
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Gongye shui chuli, 2022 通过静态批次实验，探讨了硫自养反硝化、铁自养反硝化和硫铁协同脱氮系统的脱氮性能。实验结果表明，单质硫自养反硝化过程中pH由8.46降至5.46，反应前期NO2--N发生积累，最高达7.14 mg/L。TN和NO3--N随反硝化的进行呈不断降低趋势。反应5 d时TN去除率可达100%。零价铁粉的加入可以有效起到缓冲pH的作用。在硫铁协同脱氮系统中，硫铁体积比为2∶1、1∶1时，反应体系的pH可维持在6.54~7.12之间。硫铁体积比为2∶1时脱氮效果最佳，反应72 h时TN去除率可达98.5%，NO3 ...
刘艳芳 +6 more
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