combined sewers

简明释义

雨污水合恋统

英英释义

例句

1.Cities are implementing green infrastructure to alleviate the pressure on combined sewers 合流污水管道 during storms.

城市正在实施绿色基础设施，以减轻暴风雨期间对合流污水管道的压力。

2.Many older cities still rely on combined sewers 合流污水管道 to manage both stormwater and wastewater.

许多老城市仍然依赖于合流污水管道来处理雨水和废水。

3.Upgrading combined sewers 合流污水管道 is essential for reducing pollution in urban waterways.

升级合流污水管道对于减少城市水道中的污染至关重要。

4.Residents near combined sewers 合流污水管道 often report unpleasant odors after rainstorms.

住在合流污水管道附近的居民常常在暴风雨后报告有不愉快的气味。

5.During heavy rainfall, combined sewers 合流污水管道 can overflow, leading to sewage backups.

在大雨期间，合流污水管道可能会溢出，导致污水倒灌。

作文

In urban planning, the concept of combined sewers refers to a system that collects both stormwater runoff and sewage in a single pipe. This design was commonly used in many cities during the late 19th and early 20th centuries. The primary advantage of combined sewers is their ability to transport wastewater and rainwater together, which can simplify infrastructure development and reduce construction costs. However, this system also has significant drawbacks that have led to its decline in modern urban engineering practices.One of the main issues with combined sewers is the risk of overflow during heavy rainfall events. When the volume of water exceeds the capacity of the sewer system, untreated sewage can be discharged directly into nearby water bodies, leading to pollution and health hazards. This phenomenon, known as Combined Sewer Overflows (CSOs), poses a significant environmental challenge. Many cities have implemented measures to mitigate CSOs, such as building retention basins or upgrading to separate sewer systems.Another concern is the maintenance of combined sewers. Since they handle both sewage and stormwater, these systems can become clogged with debris, leading to blockages and backups. Regular maintenance is essential to ensure their proper functioning, but it can be costly and labor-intensive. Additionally, the aging infrastructure in many urban areas exacerbates these problems, as older systems may not be equipped to handle current water volumes.Despite these challenges, some cities still rely on combined sewers due to historical reasons and the high costs associated with retrofitting existing systems. In these cases, innovative solutions are being explored, such as green infrastructure techniques that aim to reduce stormwater runoff at its source. These methods include installing permeable pavements, green roofs, and rain gardens, which can help alleviate pressure on the combined sewers by allowing rainwater to infiltrate the ground rather than entering the sewer system.The debate surrounding combined sewers highlights the broader conversation about sustainable urban development. As cities continue to grow, the need for effective and environmentally friendly wastewater management becomes increasingly important. Policymakers must weigh the benefits and drawbacks of combined sewers against alternative systems, considering both cost and environmental impact.In conclusion, while combined sewers played a crucial role in the development of urban sanitation systems, their limitations have prompted many cities to seek more sustainable solutions. The future of urban infrastructure will likely involve a combination of innovative technologies and nature-based solutions that address the challenges posed by aging sewer systems and climate change. Understanding the implications of combined sewers is essential for anyone involved in urban planning and environmental protection, as we strive towards creating healthier and more resilient cities.

在城市规划中，combined sewers的概念指的是一种系统，它将雨水径流和污水收集在一根管道中。这种设计在19世纪末和20世纪初的许多城市中被广泛使用。combined sewers的主要优点是能够将废水和雨水一起运输，这可以简化基础设施的发展并降低建设成本。然而，这种系统也有显著的缺点，导致它在现代城市工程实践中的衰退。combined sewers的主要问题之一是重雨事件期间溢出的风险。当水量超过下水道系统的容量时，未经处理的污水可能会直接排放到附近水体中，导致污染和健康危害。这种现象被称为合流污水溢流（CSOs），构成了重大的环境挑战。许多城市已采取措施来减轻CSOs，例如建设蓄水池或升级为分流污水系统。另一个关注点是combined sewers的维护。由于它们同时处理污水和雨水，这些系统可能会因杂物堵塞而导致阻塞和回流。定期维护对确保其正常运转至关重要，但这可能成本高昂且劳动密集。此外，许多城市地区的老化基础设施加剧了这些问题，因为旧系统可能无法应对当前的水量。尽管面临这些挑战，一些城市仍然依赖于combined sewers，这是由于历史原因以及重新改造现有系统的高成本。在这些情况下，正在探索创新解决方案，例如旨在从源头减少雨水径流的绿色基础设施技术。这些方法包括安装透水铺装、绿色屋顶和雨水花园，这可以通过让雨水渗入地下而不是进入下水道系统来减轻对combined sewers的压力。关于combined sewers的辩论突显了可持续城市发展的更广泛讨论。随着城市的不断发展，有效和环保的废水管理需求变得越来越重要。政策制定者必须权衡combined sewers的利弊与替代系统，考虑成本和环境影响。总之，虽然combined sewers在城市卫生系统的发展中发挥了关键作用，但它们的局限性促使许多城市寻求更可持续的解决方案。未来的城市基础设施可能会结合创新技术和基于自然的解决方案，以应对老化下水道系统和气候变化带来的挑战。理解combined sewers的影响对于任何参与城市规划和环境保护的人来说都是至关重要的，因为我们努力创建更健康和更具韧性的城市。