denitrifier

简明释义

英[diːˈnaɪtrɪˌfaɪə(r)]美[ˈdenɪtrɪfaɪər]

n. 脱氮剂

英英释义

单词用法

同义词

反义词

例句

1.The denitrifier of complexation type has a good separation capability.

络合型脱氮剂具有良好的分离能力。

2.Research on pollutants removal efficiency of the high rate denitrifier applied for constructed wetland with simulating undercurrent was conducted.

研究高效除氮菌的加入对模拟潜流人工湿地除污效果的影响。

3.Research on pollutants removal efficiency of the high rate denitrifier applied for constructed wetland with simulating undercurrent was conducted.

研究高效除氮菌的加入对模拟潜流人工湿地除污效果的影响。

4.The role of the denitrifier in the nitrogen cycle is crucial for maintaining soil health.

在氮循环中，脱氮菌的作用对维持土壤健康至关重要。

5.Farmers often use denitrifiers to reduce nitrogen runoff into nearby water bodies.

农民常常使用脱氮菌来减少氮流失到附近水体中。

6.The effectiveness of denitrifiers can be influenced by environmental factors such as pH and temperature.

环境因素如pH值和温度会影响脱氮菌的有效性。

7.In wastewater treatment, denitrifiers are used to remove excess nitrates.

在废水处理过程中，使用脱氮菌去除多余的硝酸盐。

8.Research shows that certain plants can enhance the activity of denitrifiers in the soil.

研究表明，某些植物可以增强土壤中脱氮菌的活性。

作文

In the intricate web of our ecosystem, every organism plays a vital role in maintaining balance and sustainability. Among these organisms, the denitrifier is particularly significant. A denitrifier (反硝化细菌) is a type of bacteria that converts nitrates into nitrogen gas, thus playing a crucial role in the nitrogen cycle. This process is essential for preventing the accumulation of excess nitrates in the environment, which can lead to problems such as water pollution and algal blooms.The nitrogen cycle is a natural process that involves the transformation of nitrogen from one form to another. It begins with nitrogen fixation, where atmospheric nitrogen (N2) is converted into ammonia (NH3) by certain bacteria. This ammonia can then be taken up by plants and used to create proteins. However, when these plants die or are consumed, the nitrogen is released back into the soil in the form of nitrates (NO3-). Here is where the role of the denitrifier becomes critical.When there is an excess of nitrates in the soil, it can leach into water bodies, causing eutrophication, which leads to oxygen depletion and harm to aquatic life. The denitrifier helps mitigate this issue by converting nitrates back into nitrogen gas, which is then released into the atmosphere. This not only reduces the amount of nitrates in the soil but also helps maintain the balance of nitrogen in our ecosystem.Furthermore, denitrifiers are found in various environments, including wetlands, forests, and agricultural soils. Their activity is influenced by several factors, including oxygen levels, temperature, and the availability of organic carbon. In anaerobic conditions, where oxygen is limited, denitrifiers thrive and perform their function more effectively. This adaptability makes them essential for nutrient cycling in diverse ecosystems.The importance of denitrifiers is further highlighted in agricultural practices. Farmers often use fertilizers that contain nitrates to enhance crop yield. However, without proper management, these nitrates can runoff into nearby water bodies, leading to environmental issues. By promoting the growth of denitrifiers in the soil, farmers can reduce nitrate levels and improve water quality, demonstrating a sustainable approach to agriculture.In recent years, researchers have been exploring the potential of using denitrifiers in bioremediation efforts. Bioremediation is a process that uses living organisms to remove or neutralize contaminants from the environment. By harnessing the capabilities of denitrifiers, scientists aim to develop strategies to clean up polluted water and soil, showcasing the beneficial aspects of these microorganisms.In conclusion, the role of the denitrifier in the nitrogen cycle cannot be overstated. As nature's recyclers, they help convert harmful nitrates back into harmless nitrogen gas, thus preventing environmental degradation. Understanding the function of denitrifiers not only highlights the interconnectedness of our ecosystem but also emphasizes the need for sustainable practices in agriculture and environmental management. By recognizing and supporting the work of these tiny yet mighty organisms, we can contribute to a healthier planet for future generations.

在我们生态系统的复杂网络中，每种生物在维持平衡和可持续性方面都扮演着至关重要的角色。在这些生物中，denitrifier（反硝化细菌）尤为重要。denitrifier是一种将硝酸盐转化为氮气的细菌，因此在氮循环中发挥着关键作用。这个过程对防止环境中硝酸盐过量积累至关重要，因为这可能导致水污染和藻类暴发等问题。氮循环是一个自然过程，涉及氮的不同形态之间的转化。它始于氮固定，某些细菌将大气中的氮（N2）转化为氨（NH3）。这种氨随后可以被植物吸收并用于合成蛋白质。然而，当这些植物死亡或被食用时，氮会以硝酸盐（NO3-）的形式释放回土壤。这时，denitrifier的角色变得至关重要。当土壤中硝酸盐过量时，它可能渗入水体，导致富营养化，进而导致氧气耗竭和水生生物的伤害。denitrifier通过将硝酸盐转化回氮气来帮助缓解这一问题，氮气随后释放到大气中。这不仅减少了土壤中的硝酸盐含量，还帮助维持我们生态系统中氮的平衡。此外，denitrifiers存在于各种环境中，包括湿地、森林和农业土壤。它们的活动受多种因素的影响，包括氧气水平、温度和有机碳的可用性。在缺氧条件下，氧气有限，denitrifiers茁壮成长，更有效地执行其功能。这种适应性使它们在多样化生态系统中的养分循环中至关重要。denitrifiers的重要性在农业实践中更为突出。农民通常使用含硝酸盐的肥料来提高作物产量。然而，如果没有适当管理，这些硝酸盐可能会流入附近的水体，导致环境问题。通过促进土壤中denitrifiers的生长，农民可以降低硝酸盐水平并改善水质，展示了一种可持续的农业方法。近年来，研究人员一直在探索在生物修复工作中使用denitrifiers的潜力。生物修复是一种利用活生物去除或中和环境中污染物的过程。通过利用denitrifiers的能力，科学家们旨在开发清理污染水和土壤的策略，展示这些微生物的有益方面。总之，denitrifier在氮循环中的作用不可低估。作为自然的回收者，它们帮助将有害的硝酸盐转化为无害的氮气，从而防止环境退化。理解denitrifiers的功能不仅突显了我们生态系统的相互联系，还强调了在农业和环境管理中可持续实践的必要性。通过认识和支持这些微小但强大的生物的工作，我们可以为未来几代人贡献一个更健康的星球。