active sludge

简明释义

活性污泥;

英英释义

例句

1.Increased temperatures can enhance the activity of active sludge microorganisms.

温度升高可以增强活性污泥微生物的活性。

2.Adjusting the aeration rate can significantly affect the concentration of active sludge in the reactor.

调整曝气速率会显著影响反应器中活性污泥的浓度。

3.The treatment plant uses active sludge to break down organic waste efficiently.

污水处理厂使用活性污泥有效分解有机废物。

4.The efficiency of the biological treatment system depends largely on the quality of active sludge used.

生物处理系统的效率在很大程度上依赖于所用的活性污泥的质量。

5.Monitoring the levels of active sludge is crucial for optimizing the wastewater treatment process.

监测活性污泥的水平对于优化废水处理过程至关重要。

作文

In the realm of wastewater treatment, the term active sludge refers to a crucial component in the biological process that helps in breaking down organic matter. This method is widely used in modern sewage treatment plants and has proven to be effective in reducing pollutants before the water is released back into the environment. The active sludge process primarily involves a mixture of microorganisms, including bacteria and protozoa, which thrive in a nutrient-rich environment provided by the incoming wastewater. These microorganisms consume organic materials and convert them into biomass, which can then be separated from the treated water. The significance of active sludge cannot be overstated. It plays a vital role in maintaining the ecological balance in our water systems. As urbanization continues to rise, the amount of wastewater generated increases, making it essential to have efficient treatment processes in place. The active sludge system not only aids in cleaning the water but also helps in minimizing the environmental impact of human activities. By utilizing this technology, we can ensure that harmful substances are effectively removed from wastewater before it is discharged into rivers or oceans.One of the key advantages of using active sludge is its ability to adapt to varying concentrations of organic matter. The microorganisms within the sludge can adjust their metabolic rates according to the available food sources, making the process highly efficient. Moreover, the active sludge system can be optimized through various operational parameters such as aeration time, temperature, and pH levels. These factors greatly influence the performance of the microorganisms, ultimately affecting the quality of the treated water.However, managing active sludge systems is not without challenges. One common issue is the formation of bulking sludge, where the microorganisms fail to settle properly, leading to poor separation during the clarification phase. This can result in higher levels of suspended solids in the treated water, compromising its quality. To combat this, operators must closely monitor the system and make necessary adjustments, such as controlling the return activated sludge (RAS) flow rate or adding chemicals to improve settling.Furthermore, the disposal of excess active sludge generated during the treatment process poses another challenge. This sludge contains a significant amount of organic material, which can be repurposed as fertilizer or bioenergy. However, proper handling and treatment are required to ensure that pathogens and contaminants are eliminated before reuse. This aspect highlights the importance of sustainability in wastewater management practices.In conclusion, the concept of active sludge is integral to the field of wastewater treatment. Its ability to effectively break down organic matter and reduce pollutants makes it an invaluable tool in protecting our water resources. As we continue to face environmental challenges, the optimization and management of active sludge systems will be critical in ensuring a cleaner and healthier planet for future generations. Understanding the dynamics of active sludge not only enhances our knowledge of wastewater treatment but also emphasizes the need for responsible water management practices.

在废水处理领域，术语活性污泥指的是生物过程中的一个关键组成部分，它有助于分解有机物。这种方法广泛应用于现代污水处理厂，并已被证明在减少污染物方面有效，在水被释放回环境之前。活性污泥过程主要涉及微生物的混合物，包括细菌和原生动物，这些微生物在进入的废水提供的富营养环境中茁壮成长。这些微生物消耗有机物质并将其转化为生物量，然后可以从处理过的水中分离出来。活性污泥的重要性不容小觑。它在维护我们水系统的生态平衡中发挥着至关重要的作用。随着城市化的不断上升，产生的废水量也在增加，因此必须有高效的处理过程。活性污泥系统不仅有助于清洁水源，还有助于最小化人类活动对环境的影响。通过利用这项技术，我们可以确保在废水排放到河流或海洋之前，有害物质被有效去除。使用活性污泥的一个主要优点是它能够适应不同浓度的有机物。污泥中的微生物可以根据可用的食物来源调整其代谢速率，从而使过程高效。此外，活性污泥系统可以通过多种操作参数进行优化，如曝气时间、温度和pH值。这些因素极大地影响微生物的性能，最终影响处理水的质量。然而，管理活性污泥系统并非没有挑战。一个常见的问题是污泥膨胀的形成，即微生物未能正确沉降，导致在澄清阶段分离不良。这可能导致处理水中悬浮固体含量升高，从而降低水质。为了解决这个问题，操作人员必须密切监测系统并进行必要的调整，例如控制回流活性污泥（RAS）流量或添加化学品以改善沉降。此外，在处理过程中产生的多余活性污泥的处理也是另一个挑战。这种污泥含有大量的有机物，可以作为肥料或生物能重复使用。然而，在重复使用之前，需要进行适当的处理和处置，以确保病原体和污染物被消除。这一点强调了废水管理实践中可持续性的必要性。总之，活性污泥的概念是废水处理领域不可或缺的一部分。它有效分解有机物和减少污染物的能力，使其成为保护水资源的宝贵工具。在我们继续面临环境挑战的过程中，优化和管理活性污泥系统对于确保未来世代拥有更清洁、更健康的星球至关重要。理解活性污泥的动态不仅增强了我们对废水处理的认识，还强调了负责任的水管理实践的必要性。