primary sedimentation

简明释义

一次沉淀

英英释义

例句

1.The design of a primary sedimentation 初级沉淀 tank is crucial for optimal performance.

初级沉淀池的设计对于最佳性能至关重要。

2.During primary sedimentation 初级沉淀, solids settle at the bottom of the tank.

在初级沉淀过程中，固体物质会沉降到池底。

3.Improper primary sedimentation 初级沉淀 can lead to higher levels of pollutants in the effluent.

不当的初级沉淀可能导致排放水中污染物水平升高。

4.Engineers often monitor the efficiency of primary sedimentation 初级沉淀 in treatment plants.

工程师经常监测处理厂中初级沉淀的效率。

5.The process of primary sedimentation 初级沉淀 is essential for removing large particles from wastewater.

初级沉淀过程对去除废水中的大颗粒物质至关重要。

作文

In the field of wastewater treatment, understanding the processes involved is crucial for effective management and environmental protection. One of the key stages in this process is known as primary sedimentation, which plays a vital role in the removal of solid particles from wastewater. Primary sedimentation refers to the initial step in the sedimentation process where suspended solids settle out of the water due to gravity. This stage is essential because it significantly reduces the load on subsequent treatment processes, such as biological treatment. During primary sedimentation, wastewater flows into large tanks called sedimentation basins or clarifiers. These tanks are designed to allow enough time for the heavier solids to settle to the bottom, forming a layer of sludge. The lighter materials, including grease and oils, float to the surface and form a scum layer. The design and operation of these tanks are critical; they must be large enough to accommodate variations in flow rates and influent characteristics. The efficiency of primary sedimentation can be influenced by several factors, including the size and density of the particles, the hydraulic retention time, and the temperature of the wastewater. For instance, larger and denser particles tend to settle faster, while smaller particles may require longer settling times. Additionally, the temperature of the wastewater can affect the viscosity of the water, which in turn influences the settling rate of solids. After the settling period, the sludge collected at the bottom of the sedimentation basin is typically removed and sent for further treatment, while the clarified water is directed to the next stage of the treatment process. This separation is crucial because it prevents the accumulation of solids in the system, which could lead to operational issues and reduced treatment efficiency. Moreover, primary sedimentation not only helps in reducing the solid load but also plays a role in removing some of the organic matter and pathogens present in the wastewater. By allowing solids to settle, the process contributes to the overall improvement in water quality before it undergoes more advanced treatment methods. In conclusion, primary sedimentation is a fundamental step in wastewater treatment that facilitates the removal of solids and enhances the efficiency of subsequent treatment processes. Understanding this process is essential for engineers and environmental scientists working in the field of water treatment. By optimizing primary sedimentation, we can ensure that wastewater is treated effectively, protecting both public health and the environment. As the demand for clean water continues to rise, the importance of efficient sedimentation processes will only grow, making it imperative for professionals in the industry to stay informed about the latest advancements and best practices in wastewater management.

在废水处理领域，理解所涉及的过程对于有效管理和环境保护至关重要。其中一个关键阶段被称为初级沉淀，它在去除废水中的固体颗粒方面发挥着重要作用。初级沉淀是指沉淀过程中最初的一步，悬浮固体因重力而沉降出水面。这个阶段是必不可少的，因为它显著减少了后续处理过程（如生物处理）的负荷。在初级沉淀期间，废水流入称为沉淀池或澄清池的大型坦克。这些坦克的设计旨在允许足够的时间让较重的固体沉降到底部，形成一层污泥。较轻的材料，包括油脂和油，漂浮到表面并形成泡沫层。这些坦克的设计和操作至关重要；它们必须足够大，以适应流量和进水特性的变化。初级沉淀的效率可能受到多个因素的影响，包括颗粒的大小和密度、水力停留时间以及废水的温度。例如，较大和较密的颗粒通常沉降得更快，而较小的颗粒可能需要更长的沉降时间。此外，废水的温度会影响水的粘度，从而影响固体的沉降速度。沉降期结束后，沉淀池底部收集的污泥通常会被移除并送往进一步处理，而澄清的水则被引导到处理过程的下一阶段。这种分离至关重要，因为它防止了系统中固体的积累，这可能导致操作问题和处理效率的降低。此外，初级沉淀不仅有助于减少固体负荷，还在去除废水中某些有机物质和病原体方面发挥作用。通过允许固体沉降，该过程有助于在废水经过更高级的处理方法之前改善水质。总之，初级沉淀是废水处理中的基本步骤，有助于去除固体并提高后续处理过程的效率。理解这一过程对水处理领域的工程师和环境科学家至关重要。通过优化初级沉淀，我们可以确保废水得到有效处理，从而保护公共健康和环境。随着对清洁水需求的不断上升，高效沉淀过程的重要性只会增加，这使得行业专业人士必须及时了解废水管理领域的最新进展和最佳实践。