biological wastewater treatment

简明释义

废水生物处理

英英释义

例句

1.Research shows that biological wastewater treatment 生物污水处理 can significantly reduce organic matter in sewage.

研究表明，生物污水处理 biological wastewater treatment可以显著减少污水中的有机物。

2.The plant utilizes biological wastewater treatment 生物污水处理 to ensure clean water is returned to the ecosystem.

该工厂利用生物污水处理 biological wastewater treatment确保清洁水被返回生态系统。

3.Many industries are adopting biological wastewater treatment 生物污水处理 to comply with environmental regulations.

许多行业正在采用生物污水处理 biological wastewater treatment以遵守环境法规。

4.The effectiveness of biological wastewater treatment 生物污水处理 depends on the microorganisms used in the process.

生物污水处理 biological wastewater treatment的有效性取决于过程中使用的微生物。

5.The city implemented a new system for biological wastewater treatment 生物污水处理 to reduce pollution levels in the river.

该市实施了一种新的系统进行生物污水处理 biological wastewater treatment，以降低河流中的污染水平。

作文

The process of biological wastewater treatment is essential for maintaining the health of our environment. As urbanization and industrial activities continue to grow, the amount of wastewater generated has increased significantly. This wastewater often contains harmful pollutants that can adversely affect aquatic ecosystems and human health if not treated properly. Therefore, understanding the principles and methods of biological wastewater treatment is crucial for sustainable development.Biological wastewater treatment refers to the use of microorganisms to break down organic matter in wastewater. This process typically occurs in two main stages: aerobic and anaerobic treatment. In aerobic treatment, bacteria consume organic pollutants in the presence of oxygen, leading to the production of carbon dioxide and water. Conversely, anaerobic treatment takes place in environments devoid of oxygen, where different types of bacteria thrive and convert organic matter into biogas, which can be used as a renewable energy source.One of the most common methods of biological wastewater treatment is activated sludge. In this method, wastewater is aerated in a tank, allowing bacteria to grow and form flocs, which are clusters of microorganisms. These flocs then settle at the bottom of the tank, separating from the treated water. The settled sludge can be recycled back into the system to maintain the bacterial population or disposed of safely. This method is widely used due to its efficiency in removing organic pollutants and its relatively low operational costs.Another popular technique is the use of biofilters or trickling filters. In this system, wastewater flows over a bed of media, such as rocks or plastic, which provides a surface for bacteria to grow. As the wastewater trickles through the media, the bacteria break down the organic matter. This method is particularly effective for treating smaller volumes of wastewater and is often used in decentralized systems.The advantages of biological wastewater treatment are numerous. Firstly, it is an environmentally friendly option as it utilizes natural processes to treat wastewater. Secondly, it can effectively reduce the biochemical oxygen demand (BOD) and total suspended solids (TSS) in wastewater, making it suitable for discharge into natural water bodies. Moreover, the by-products of biological wastewater treatment, such as biogas, can be harnessed for energy production, contributing to a circular economy.However, there are also challenges associated with biological wastewater treatment. Factors such as temperature, pH, and the presence of toxic substances can significantly impact the efficiency of the treatment process. Additionally, the management of sludge produced during treatment requires careful consideration to prevent environmental pollution.In conclusion, biological wastewater treatment plays a vital role in safeguarding our water resources and promoting environmental sustainability. As we face increasing challenges related to water pollution, investing in advanced and efficient biological wastewater treatment technologies will be essential. By enhancing our understanding of these processes and implementing effective treatment systems, we can protect our ecosystems and ensure a cleaner, healthier future for generations to come.

生物废水处理的过程对于维护我们环境的健康至关重要。随着城市化和工业活动的不断增长，产生的废水量显著增加。这些废水通常含有有害污染物，如果不经过适当处理，会对水生生态系统和人类健康产生不利影响。因此，理解生物废水处理的原理和方法对于可持续发展至关重要。生物废水处理是指利用微生物分解废水中的有机物质。该过程通常分为两个主要阶段：好氧处理和厌氧处理。在好氧处理过程中，细菌在氧气存在的情况下消耗有机污染物，从而产生二氧化碳和水。相反，厌氧处理发生在缺乏氧气的环境中，不同类型的细菌在此繁衍生息，将有机物转化为沼气，这可以作为可再生能源使用。最常见的生物废水处理方法之一是活性污泥法。在这种方法中，废水在一个罐中曝气，使细菌生长并形成絮体，即微生物的聚集体。这些絮体随后沉淀在罐底，与处理后的水分离。沉淀的污泥可以回收利用以维持细菌种群，或安全处置。由于其高效去除有机污染物和相对较低的运营成本，这种方法被广泛使用。另一种流行的技术是生物滤池或滴滤池。在这个系统中，废水流过一层介质，如岩石或塑料，为细菌生长提供了表面。当废水滴流通过介质时，细菌分解有机物质。这种方法特别有效于处理较小体积的废水，通常用于分散系统。生物废水处理的优点众多。首先，它是一种环保选项，因为它利用自然过程处理废水。其次，它可以有效降低废水中的生化需氧量（BOD）和总悬浮固体（TSS），使其适合排放到自然水体中。此外，生物废水处理的副产品，如沼气，可以用于能源生产，促进循环经济。然而，生物废水处理也面临挑战。温度、pH值和有毒物质的存在等因素会显著影响处理过程的效率。此外，处理过程中产生的污泥管理需要谨慎考虑，以防止环境污染。总之，生物废水处理在保护我们的水资源和促进环境可持续性方面发挥着至关重要的作用。随着我们面临与水污染相关的日益严峻的挑战，投资先进和高效的生物废水处理技术将变得至关重要。通过增强我们对这些过程的理解并实施有效的处理系统，我们可以保护我们的生态系统，确保为后代创造一个更清洁、更健康的未来。