nitrification

简明释义

英[ˌnaɪtrɪfɪˈkeɪʃən]美[ˌnaɪtrəfəˈkeɪʃn]

n. [化学] 硝化作用；氮饱和；氮化合

英英释义

单词用法

同义词

反义词

例句

1.Conventional bioremoval of nitrogen involves two processes: aerobic nitrification, and anaerobic denitrification.

传统生物脱氮包括好氧硝化和缺氧反硝化两个过程。

2.The application of nitrification accelerator HB - 1 in wastewater treatment plant was introduced.

介绍了硝化促进剂hb-1在污水处理装置中的应用情况。

3.Hydraulic characteristics and nitrification efficiency of Biological Turbulent Bed Reactor (BTBR) were studied.

试验研究了生物紊动床的水力特性及硝化效能。

4.The kinetic model of the nitrification of garbage percolate is different from that of sewage with low-concentration of ammonia nitrogen.

垃圾渗滤液硝化动力学模型不同于低浓度氨氮废水硝化动力学模型。

5.Study was made on the efficiency and mechanism of shortcut nitrification-denitrification in aerated biofilter.

通过小试研究了曝气生物滤池实现短程硝化反硝化的效能和机理。

6.The lime nitrification device is one set of core equipment in the lime-milk preparation system.

石灰硝化装置是石灰乳制备系统的核心设备之一。

7.Based on the experiment of biofilm A/O process, the feasibility of brief-nitrification in attached microorganism system is studied.

基于菌膜厌氧好氧工艺法流程试验，对附着微生物简短硝化的可行性进行了研究。

8.The inhibition of copper ion on nitrification activity of nitrifying bacteria in sediment and activated sludge were studied.

研究了铜离子对底泥和活性污泥硝化活性的抑制作用的差异。

9.The nitrogen removal rate would be increased through enhancing the nitrification ability in constructed wetland.

提高人工湿地硝化能力，就可以提高湿地中氮去除率。

10.The process of nitrification is essential for converting ammonia into nitrates in soil.

硝化作用的过程对于将氨转化为土壤中的硝酸盐至关重要。

11.In aquaponics, nitrification helps maintain water quality by breaking down fish waste.

在水产养殖中，硝化作用通过分解鱼类废物来帮助维持水质。

12.Farmers often rely on nitrification to enhance soil fertility and crop yields.

农民常常依靠硝化作用来提高土壤肥力和作物产量。

13.The study of nitrification processes can help in understanding nitrogen cycles in ecosystems.

对硝化作用过程的研究可以帮助理解生态系统中的氮循环。

14.Microbial activity is crucial for the nitrification process in wastewater treatment.

微生物活动对废水处理中的硝化作用至关重要。

作文

Nitrification is a crucial process in the nitrogen cycle, which plays a significant role in maintaining the balance of ecosystems. This biological process involves the conversion of ammonia into nitrites and then into nitrates, primarily carried out by specific types of bacteria. Understanding nitrification is essential for various fields, including agriculture, environmental science, and wastewater management. In agriculture, nitrification is vital because it affects soil fertility. Ammonia, often produced from organic matter decomposition or through fertilizers, can be toxic to plants in high concentrations. However, when ammonia undergoes nitrification, it is transformed into nitrites and then into nitrates, which are much less harmful and more easily absorbed by plants. This process not only helps in preventing the accumulation of toxic substances in the soil but also enhances the availability of essential nutrients for plant growth. Moreover, nitrification has significant implications for environmental sustainability. In natural ecosystems, the process ensures that nitrogen is recycled efficiently. Nitrogen is a critical nutrient for all living organisms, and its availability in the right forms is necessary for the growth and development of plants and animals. By converting ammonia into nitrates, nitrification facilitates the uptake of nitrogen by plants, thereby supporting the food chain and promoting biodiversity. However, nitrification can also have negative consequences, especially when it comes to water quality. When excess fertilizers are applied to agricultural lands, the runoff can lead to elevated levels of nitrogen in nearby water bodies. This phenomenon, known as eutrophication, occurs when an overabundance of nutrients stimulates excessive plant growth, particularly algae. The decay of this organic matter depletes oxygen levels in the water, leading to dead zones where aquatic life cannot survive. Thus, while nitrification is a natural and necessary process, its disruption through human activities can result in significant ecological problems. In wastewater treatment, nitrification is employed to remove excess nitrogen from sewage and industrial effluents. The process is typically carried out in two stages: first, ammonia-oxidizing bacteria convert ammonia to nitrites, and then nitrite-oxidizing bacteria further convert nitrites to nitrates. This treatment is crucial for preventing nitrogen pollution in water bodies, ensuring that treated water meets environmental standards before being released back into the ecosystem. In conclusion, nitrification is a fundamental biochemical process with far-reaching implications for agriculture, environmental health, and wastewater management. By understanding how nitrification works and its effects on ecosystems, we can better manage our agricultural practices, protect our water resources, and promote sustainable environmental practices. As we face challenges related to food security and environmental degradation, recognizing the importance of nitrification will be crucial in developing effective strategies for a sustainable future.

硝化作用是氮循环中的一个关键过程，在维持生态系统平衡方面发挥着重要作用。这个生物过程涉及将氨转化为亚硝酸盐，然后再转化为硝酸盐，主要由特定类型的细菌完成。理解硝化作用对于农业、环境科学和废水管理等多个领域至关重要。 在农业中，硝化作用是至关重要的，因为它影响土壤肥力。氨通常是由有机物分解或通过肥料产生的，高浓度的氨对植物可能是有毒的。然而，当氨经历硝化作用时，它被转化为亚硝酸盐，然后转化为硝酸盐，这些物质的毒性大大降低，更易被植物吸收。这个过程不仅有助于防止有毒物质在土壤中的积累，还增强了植物生长所需的养分的可用性。 此外，硝化作用对环境可持续性具有重要意义。在自然生态系统中，该过程确保氮的高效循环。氮是所有生物体所需的重要营养素，其以适当形式的可用性对植物和动物的生长与发展至关重要。通过将氨转化为硝酸盐，硝化作用促进了植物对氮的吸收，从而支持食物链并促进生物多样性。 然而，硝化作用也可能带来负面影响，特别是在水质方面。当过量肥料施用于农田时，径流可能导致附近水体中的氮含量升高。这种现象称为富营养化，发生在营养物质过剩刺激植物过度生长，尤其是藻类时。这种有机物的腐烂会耗尽水中的氧气，导致水域中出现死区，水生生物无法生存。因此，尽管硝化作用是一个自然且必要的过程，但人类活动的干扰可能导致显著的生态问题。 在废水处理过程中，硝化作用被用来去除污水和工业废水中的过量氮。该过程通常分为两个阶段：首先，氨氧化细菌将氨转化为亚硝酸盐，然后亚硝酸盐氧化细菌进一步将亚硝酸盐转化为硝酸盐。此处理对于防止水体中的氮污染至关重要，确保处理过的水在排放回生态系统之前符合环境标准。 总之，硝化作用是一个基本的生化过程，对农业、环境健康和废水管理具有深远的影响。通过理解硝化作用的工作原理及其对生态系统的影响，我们可以更好地管理农业实践，保护水资源，并促进可持续的环境实践。随着我们面临与食品安全和环境退化相关的挑战，认识到硝化作用的重要性对于制定有效的可持续未来战略至关重要。