Coal ash

简明释义

煤灰

英英释义

例句

1.Regulations on coal ash management have become stricter in recent years.

近年来，关于煤灰管理的规定变得更加严格。

2.The accumulation of coal ash can lead to serious health risks for nearby communities.

大量的煤灰堆积可能对附近社区造成严重健康风险。

3.In some regions, coal ash is reused in construction materials like concrete.

在某些地区，煤灰被重新用于混凝土等建筑材料中。

4.Some farmers use coal ash as a soil amendment to improve crop yields.

一些农民将煤灰用作土壤改良剂，以提高作物产量。

5.The power plant must properly dispose of its coal ash to prevent environmental contamination.

发电厂必须妥善处理其煤灰以防止环境污染。

作文

Coal ash, or 煤灰, is a byproduct of burning coal in power plants and industrial processes. It consists of fine particles that are released into the air during combustion, as well as the solid residues left after the burning process. The composition of 煤灰 can vary significantly depending on the type of coal used and the conditions of combustion. Generally, it contains a mixture of silica, alumina, iron, calcium, magnesium, and other trace elements. While 煤灰 may seem like a waste product, it has several important applications and poses environmental challenges that need to be addressed.One of the primary uses of 煤灰 is in the construction industry. It can be used as a pozzolanic material in concrete production, enhancing the strength and durability of concrete structures. The addition of 煤灰 to concrete not only improves its performance but also reduces the amount of cement required, leading to lower carbon emissions associated with cement production. This makes 煤灰 a valuable resource for sustainable construction practices.However, the disposal of 煤灰 presents significant environmental concerns. When improperly managed, it can leach harmful heavy metals into the soil and groundwater, posing risks to human health and ecosystems. For instance, elements such as arsenic, lead, and mercury can be found in 煤灰, and their presence raises alarms about contamination. Therefore, it is crucial for industries to implement effective management strategies for 煤灰 disposal and recycling to minimize these risks.In recent years, regulations surrounding the management of 煤灰 have become stricter. Many countries have recognized the need to treat 煤灰 as a hazardous material, requiring power plants to monitor and report its composition and disposal methods. This shift reflects a growing awareness of the potential dangers associated with 煤灰 and the importance of protecting public health and the environment.Moreover, research is ongoing to find innovative ways to utilize 煤灰 more effectively. Scientists are exploring its use in various applications, such as in the production of lightweight aggregates, road construction materials, and even in agriculture as a soil amendment. These alternative uses could help reduce the volume of 煤灰 sent to landfills while simultaneously providing economic benefits.In conclusion, 煤灰 is a complex material with both beneficial uses and significant environmental challenges. Its role in the construction industry highlights its potential as a sustainable resource, while the risks associated with its disposal underscore the need for careful management. As society continues to seek cleaner energy sources and more sustainable practices, understanding and effectively managing 煤灰 will be essential for achieving a balance between energy production and environmental protection.

煤灰，或称为煤灰，是燃烧煤炭时在发电厂和工业过程中产生的副产品。它由在燃烧过程中释放到空气中的细小颗粒以及燃烧后留下的固体残留物组成。煤灰的成分因所用煤种和燃烧条件的不同而有很大差异。一般来说，它包含二氧化硅、铝土矿、铁、钙、镁及其他微量元素的混合物。虽然煤灰看似废弃物，但它具有多种重要应用，并且带来了需要解决的环境挑战。煤灰的主要用途之一是在建筑行业。它可以作为混凝土生产中的火山灰材料，提高混凝土结构的强度和耐久性。在混凝土中添加煤灰不仅改善了其性能，还减少了所需水泥的数量，从而降低了与水泥生产相关的碳排放。这使得煤灰成为可持续建筑实践中的宝贵资源。然而，煤灰的处置带来了重大的环境问题。当管理不当时，它可能会将有害重金属渗入土壤和地下水，对人类健康和生态系统构成风险。例如，煤灰中可能含有砷、铅和汞等元素，其存在引发了对污染的担忧。因此，工业界必须实施有效的管理策略，以便妥善处理和回收煤灰，以最小化这些风险。近年来，围绕煤灰管理的法规变得更加严格。许多国家认识到需要将煤灰视为危险材料，要求发电厂监测并报告其成分和处置方法。这一转变反映出对与煤灰相关潜在危险的日益关注，以及保护公众健康和环境的重要性。此外，科研人员正在探索创新的方法，更有效地利用煤灰。科学家们正在研究其在各种应用中的使用，例如在轻质骨料的生产、道路建设材料，甚至在农业中作为土壤改良剂。这些替代用途可能有助于减少送往填埋场的煤灰量，同时带来经济利益。总之，煤灰是一种复杂的材料，既具有有益的用途，也面临显著的环境挑战。它在建筑行业中的作用突显了其作为可持续资源的潜力，而其处置所带来的风险则强调了谨慎管理的必要性。随着社会继续寻求更清洁的能源来源和更可持续的实践，理解和有效管理煤灰将对实现能源生产与环境保护之间的平衡至关重要。