Results 11 to 20 of about 153,291 (132)
, 2007 生物质煤气废水是一种新出现的高浓度氨氮有机废水。作者采用化学沉淀法去除该废水中的氨氮，研究了不同沉淀剂、pH、温度和搅拌时间对氨氮去除效果的影响。结果表明，MgCl2＋Na3PO4·12H2O明显优于其他沉淀剂组合。当n（Mg^2＋）：n（NH4^＋）：n（PO4^3-）=1：1：1、pH10．0、温度30℃、搅拌时间30min时，废水中的氨氮质量浓度从处理前的222mg/L降到17mg／L，去除率为92.3％
吴创之
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Functional Ecology, Volume 40, Issue 6, Page 1725-1739, June 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Root exudates play a key role as signals and nutrients in mediating plant–microbe communication. However, critical knowledge gaps remain regarding how root exudates mediate soil–microbe–plant interactions to regulate crop yield under long‐term straw mulching combined ...
Jiajie Song +7 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Graphitic carbon nitride (g‐C3N4) doped with 3d transition metals (3d‐TM@g‐C3N4) has gained attention as a noble metal‐free alternative for oxygen evolution and reduction reactions (OER/ORR). Yet the key mechanisms driving its performance remain debated, especially across different charge states.
Jing Zhang +6 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Periodontitis is a chronic infectious oral disease triggered by periodontopathogenic bacteria, resulting in the progressive inflammation and destruction of the tissues surrounding teeth. To achieve reprogramming of the infectious microenvironment for periodontitis therapy, a nanoformulation was proposed by loading polydopamine (PDA) with ...
Hao Liang +14 more
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Gongye shui chuli, 2022 为确定电催化氧化对污水厂二级出水的处理效果及优化运行参数，采用连续流反应器，以天津市某污水厂二级出水为原水，通过单因素实验考察了极板类型、极板数量、电流密度、极板间距、水力停留时间对COD、氨氮、总氮去除效果的影响。结果表明：对于COD和氨氮的去除，钌钛电极的去除效果优于钌铱电极；增加极板数量可以强化有机污染物的去除率。采用钌钛电极的优化运行参数：电流密度10 mA/cm2，极板间距8 cm，水力停留时间2.75 h；在优化条件下运行时，COD平均去除率为55.1%，氨氮平均去除率为99.6 ...
李诚, 张浩, 顾悦, 王少坡
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
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Gongye shui chuli, 2013 采用柱式光合反应器对藻类去除煤气化废水的氨氮及总氮开展了探索性实验研究。实验结果表明:优化条件下,四尾栅藻、斜生栅藻、混合藻(黄丝藻和席藻)都在3 d内完全去除氨氮,同时总氮去除率都在第5天达到最大,分别是四尾栅藻86.02%,斜生栅藻83.33%,混合藻71.81%。说明选用合适的藻类去除煤气化废水的氨氮及总氮可行,同时相比生物硝化/反硝化脱氮工艺该方法具有一定的新颖性。
刘肃力 +3 more
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Developing efficient catalytic thermal desorption systems is of great significance in the field of sustainable soil remediation. Herein, novel Mn–Ce solid solution modified Co3O4 nanocrystals were successfully prepared for the removal of perfluorooctanoic acid (PFOA) in soil.
Yu‐Hao Liu +8 more
wiley +1 more source
, 2008 本发明涉及一种用于处理高浓度氨氮废水的氨氮脱除剂及处理方法，属污水处理技术领域。氨氮脱除剂为在设定水量的氨氮废水中按Mg2+∶NH4+∶PO43-＝1.4～1.6∶1∶1.4～1.6加入镁盐和磷酸盐反应生成的沉淀物然后在MAP分解室分解，最后分解产物经盐酸溶解，搅拌混匀成稀泥状制备而成。使用氨氮脱除剂的处理方法其特征在于：设定水量的氨氮废水先进入pH预调节沉淀池，然后进入MAP沉淀池，加入氨氮脱除剂搅拌反应后根据上清液氨氮浓度选择是否进入MAP再次沉淀池，废水最后进入除磷池除磷 ...
波, 肖贤明, 黄海明, 晏
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New Phytologist, Volume 247, Issue 6, Page 2616-2629, September 2025.Summary Seagrasses are important contributors to environmental nutrient cycling in marine ecosystems and can improve water quality by absorbing excess nitrogen (N). However, these ecosystems are vulnerable to human‐mediated pressures, including marine heatwaves (MHWs), particularly those of longer duration. We performed an experiment simulating a 30‐d,
Alissa V. Bass +5 more
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