sewage treatment; sewage disposal

简明释义

污水处理

英英释义

例句

1.Local regulations require all facilities to have a plan for sewage disposal 污水处置 to protect public health.

地方法规要求所有设施制定污水处置 污水处置计划，以保护公共健康。

2.Advanced sewage treatment 污水处理 systems can significantly reduce environmental impact.

先进的污水处理 污水处理系统可以显著减少环境影响。

3.The city has invested heavily in new technologies for sewage treatment 污水处理 to improve water quality.

这座城市在新技术的污水处理 污水处理上投入了大量资金，以改善水质。

4.The new plant will enhance sewage treatment 污水处理 capabilities for the growing population.

新工厂将增强对不断增长的人口的污水处理 污水处理能力。

5.Proper sewage disposal 污水处置 is crucial to prevent contamination of local water sources.

适当的污水处置 污水处置对于防止当地水源污染至关重要。

作文

In today's world, the management of waste is becoming increasingly important due to the rapid growth of urban populations and industrial activities. Among the various types of waste, one of the most critical issues is related to water pollution caused by sewage. Therefore, effective methods of sewage treatment (污水处理) and sewage disposal (污水处置) are essential for maintaining environmental health and public safety. Sewage refers to the wastewater that is generated from households, industries, and commercial establishments. This wastewater contains a variety of harmful substances, including pathogens, chemicals, and organic matter. If left untreated, sewage can contaminate rivers, lakes, and oceans, leading to serious ecological and health problems. Hence, the process of sewage treatment involves various physical, chemical, and biological processes designed to remove these harmful components from the wastewater before it is released back into the environment.The first step in sewage treatment is typically the primary treatment, which involves the physical separation of solid waste from the liquid. This is usually achieved through screening and sedimentation. During this stage, larger solids are removed, and the remaining liquid is sent for further treatment. The secondary treatment follows, where biological processes are used to break down organic matter. This can be accomplished through methods such as activated sludge systems or biofilters, which utilize microorganisms to consume the organic pollutants.Finally, the tertiary treatment may be employed to further purify the water, often involving advanced filtration and disinfection techniques, such as chlorination or ultraviolet light treatment. This multi-step process ensures that the treated sewage meets regulatory standards before being discharged into natural water bodies or reused for irrigation and other purposes.After the sewage treatment process, the next crucial step is sewage disposal. This refers to the safe and environmentally responsible management of the treated sewage. There are several methods of sewage disposal, including discharge into rivers, lakes, or oceans, land application, and even recycling for non-potable uses. Each method has its advantages and disadvantages, depending on local regulations, environmental conditions, and community needs.For instance, discharging treated sewage into water bodies can help maintain water levels and support aquatic life, provided that the effluent meets quality standards. On the other hand, land application allows nutrients from the treated sewage to enrich soil, benefiting agricultural activities. However, improper sewage disposal can lead to contamination of groundwater and surface water, posing risks to human health and the environment.In conclusion, the significance of sewage treatment and sewage disposal cannot be overstated. As our cities continue to grow and industrialize, the need for effective waste management solutions becomes ever more pressing. By investing in advanced technologies and sustainable practices, we can ensure that our waterways remain clean and safe for future generations. It is imperative that governments, industries, and communities work together to promote responsible sewage treatment and sewage disposal methods, safeguarding our environment and public health.

在当今世界，由于城市人口和工业活动的快速增长，废物管理变得越来越重要。在各种类型的废物中，与污水相关的问题尤为关键。因此，有效的方法来进行污水处理和污水处置对于维护环境健康和公共安全至关重要。污水是指来自家庭、工业和商业机构产生的废水。这种废水含有多种有害物质，包括病原体、化学物质和有机物。如果不加以处理，污水会污染河流、湖泊和海洋，导致严重的生态和健康问题。因此，污水处理的过程涉及各种物理、化学和生物过程，旨在在废水释放回环境之前去除这些有害成分。污水处理的第一步通常是初级处理，其中涉及将固体废物从液体中物理分离。这通常通过筛分和沉淀来实现。在此阶段，较大的固体被移除，剩余的液体被送往进一步处理。随后是二级处理，在此过程中使用生物过程分解有机物。这可以通过活性污泥系统或生物滤池等方法完成，这些方法利用微生物消耗有机污染物。最后，可能会采用三级处理，以进一步净化水，通常涉及先进的过滤和消毒技术，例如氯化或紫外线照射。这个多步骤的过程确保经过处理的污水在排放到自然水体或用于灌溉等其他目的之前符合监管标准。在污水处理过程之后，下一步至关重要的是污水处置。这指的是对处理过的污水进行安全和环保的管理。有几种污水处置的方法，包括排放到河流、湖泊或海洋、土地应用，甚至用于非饮用水的回收。每种方法都有其优缺点，取决于当地法规、环境条件和社区需求。例如，将处理后的污水排放到水体中可以帮助维持水位并支持水生生物，前提是排放物符合质量标准。另一方面，土地应用使处理过的污水中的营养物质能够丰富土壤，有利于农业活动。然而，不当的污水处置可能导致地下水和地表水污染，给人类健康和环境带来风险。总之，污水处理和污水处置的重要性不容低估。随着我们的城市不断发展和工业化，对有效废物管理解决方案的需求变得愈发紧迫。通过投资先进技术和可持续实践，我们可以确保我们的水道保持清洁和安全，造福未来几代人。各国政府、行业和社区必须共同努力，促进负责任的污水处理和污水处置方法，保护我们的环境和公共健康。