total hardness

简明释义

总硬度

英英释义

例句

1.To improve the taste of the water, we need to reduce its total hardness.

为了改善水的味道，我们需要降低其总硬度。

2.The water treatment plant regularly tests the total hardness of the water to ensure it meets safety standards.

水处理厂定期测试水的总硬度以确保其符合安全标准。

3.High total hardness in drinking water can lead to scale buildup in pipes and appliances.

饮用水中的高总硬度可能导致管道和设备内的水垢积聚。

4.A high total hardness level can affect soap's ability to lather.

高总硬度水平会影响肥皂起泡的能力。

5.The aquarium's total hardness is critical for the health of the fish species we are keeping.

水族箱的总硬度对我们饲养的鱼类健康至关重要。

作文

Water quality is a crucial aspect of environmental science, and one of the key parameters used to assess it is total hardness. 总硬度 refers to the concentration of calcium and magnesium ions in water. These minerals are essential for various biological processes, but their presence in high concentrations can lead to several issues. In this essay, I will explore the significance of total hardness in water, its sources, effects on human health, and methods for its management.Firstly, understanding the sources of total hardness is vital. The primary contributors to total hardness in natural water bodies are geological formations. As rainwater percolates through soil and rocks, it dissolves minerals, especially limestone and dolomite, which are rich in calcium and magnesium. Human activities, such as agricultural runoff and industrial discharges, can also increase the levels of total hardness in nearby water sources. For instance, fertilizers that contain calcium or magnesium can leach into groundwater, contributing to higher total hardness levels.The effects of total hardness on human health and daily life cannot be overlooked. While moderate levels of hardness are generally not harmful and may even provide essential nutrients, excessive total hardness can lead to complications. High hardness levels can affect the taste of drinking water, making it less palatable. Moreover, hard water can cause scaling in pipes and appliances, leading to reduced efficiency and increased maintenance costs. This scaling occurs due to the precipitation of calcium carbonate, which forms when water with high total hardness is heated.In terms of health, the presence of calcium and magnesium in water is beneficial, but it is essential to maintain a balance. Studies suggest that consuming hard water may have positive effects on cardiovascular health; however, excessively hard water can lead to skin irritations and exacerbate conditions like eczema. Therefore, monitoring total hardness is crucial for ensuring safe drinking water and healthy living conditions.To manage total hardness, various treatment methods can be employed. Water softening is a common approach, which involves the removal of calcium and magnesium ions from water. This can be achieved through ion exchange processes, where sodium ions replace calcium and magnesium ions. Another method is reverse osmosis, which filters out many impurities, including hardness-causing minerals. It is essential for municipalities and industries to regularly test and monitor total hardness levels to ensure compliance with health standards and to implement appropriate treatment solutions.In conclusion, total hardness plays a significant role in determining water quality. Understanding its sources, implications, and management techniques is essential for safeguarding public health and maintaining infrastructure. As we continue to strive for cleaner and safer water resources, recognizing the importance of total hardness will aid in our efforts to improve water quality for future generations.

水质是环境科学的一个关键方面，而评估水质的关键参数之一就是总硬度。总硬度指的是水中钙和镁离子的浓度。这些矿物质对各种生物过程至关重要，但它们在高浓度下的存在可能会导致多个问题。在这篇文章中，我将探讨总硬度在水中的重要性、来源、对人类健康的影响以及管理方法。首先，了解总硬度的来源至关重要。自然水体中总硬度的主要来源是地质构造。当雨水渗透土壤和岩石时，它溶解矿物质，尤其是富含钙和镁的石灰岩和白云岩。人类活动，如农业径流和工业排放，也可以增加附近水源中的总硬度水平。例如，含有钙或镁的肥料可以渗入地下水，导致更高的总硬度水平。总硬度对人类健康和日常生活的影响不容忽视。虽然适度的硬度通常无害，甚至可能提供必需的营养，但过高的总硬度可能会导致并发症。高硬度水平会影响饮用水的口感，使其变得不那么可口。此外，硬水会在管道和设备中造成水垢，导致效率降低和维护成本增加。这种水垢的形成是由于高总硬度水加热时碳酸钙的沉淀。在健康方面，水中钙和镁的存在是有益的，但保持平衡至关重要。研究表明，饮用硬水可能对心血管健康有积极影响；然而，过于硬的水可能导致皮肤刺激并加重湿疹等疾病。因此，监测总硬度对于确保安全饮用水和健康生活条件至关重要。为了管理总硬度，可以采用多种处理方法。水软化是一种常见的方法，涉及去除水中的钙和镁离子。这可以通过离子交换过程实现，在此过程中，钠离子替代钙和镁离子。另一种方法是反渗透，它过滤掉许多杂质，包括导致硬度的矿物质。市政当局和工业部门定期测试和监测总硬度水平，以确保符合健康标准并实施适当的处理解决方案，这一点至关重要。总之，总硬度在确定水质方面起着重要作用。了解其来源、影响和管理技术对于保护公共健康和维护基础设施至关重要。随着我们继续努力争取更清洁和更安全的水资源，认识到总硬度的重要性将有助于我们改善未来几代人的水质。