冷再生机在不同气候条件下的施工效果有何差异？

　　What are the differences in the construction effects of cold recycling machines under different climatic conditions?

　　冷再生机在不同气候条件下的施工效果存在显著差异。以下将详细阐述其在不同气候条件下的具体表现。

　　There are significant differences in the construction effect of cold recycling machines under different climatic conditions. The following will elaborate on its specific performance under different climatic conditions.

　　一、在温暖气候条件下

　　1、 Under warm climate conditions

　　在温暖地区，冷再生技术的应用相对较为顺利。以沥青路面冷再生为例，施工效果良好，能够有效实现路面的维修和改造。例如，在一般公路和城市道路的维修改造及升级中，SY2500H 型横移式就地冷再生机采用单车道施工，对公共交通的影响小，适用于温暖地区的道路维修。此外，在温暖地区，就地冷再生技术的施工过程中，材料的性能能够得到较好的发挥，再生后的路面质量较高。

　　In warm regions, the application of cold regeneration technology is relatively smooth. Taking the cold recycling of asphalt pavement as an example, the construction effect is good and can effectively achieve the maintenance and renovation of the pavement. For example, in the maintenance, renovation, and upgrading of general highways and urban roads, the SY2500H transverse on-site cold recycling machine adopts single lane construction, which has little impact on public transportation and is suitable for road maintenance in warm areas. In addition, in warm regions, the performance of materials can be well utilized during the construction process of on-site cold recycling technology, and the quality of the regenerated pavement is relatively high.

　　二、在寒冷气候条件下

　　2、 Under cold climate conditions

　　生物废水处理中的应用

　　Application in biological wastewater treatment

　　在寒冷气候下，生物废水处理面临挑战，因为反应速率较低。然而，使用固定生物质的 MBBR（Moving Bed Biofilm Reactor）工艺允许在较低温度下运行，例如在处理矿山废水时，长期氮去除可维持在 4°C，硒去除可维持在 7°C。

　　In cold climates, biological wastewater treatment faces challenges due to lower reaction rates. However, the MBBR (Moving Bed Biofilm Reactor) process using fixed biomass allows for operation at lower temperatures, such as in the treatment of mine wastewater where long-term nitrogen removal can be maintained at 4 ° C and selenium removal can be maintained at 7 ° C.

　　施工和拆除废物回收中的应用

　　Application of Waste Recycling in Construction and Demolition

　　在寒冷气候下，实施施工和拆除废物（C&D waste）回收时，需要考虑不同的市场场景。例如，当 C&D 废物回收处理能力短缺或过剩时，废物生产者和回收者的利润会受到影响。在寒冷气候下，回收者的利润通常会随着废物处置率和投资成本系数的增加而减少。但当回收者的废物处理能力不足以处理产生的 C&D 废物时，回收者可以获得更多利润。

　　In cold climates, different market scenarios need to be considered when implementing construction and demolition waste (C&D waste) recycling. For example, when there is a shortage or surplus of C&D waste recycling capacity, the profits of waste producers and recyclers will be affected. In cold climates, the profits of recyclers typically decrease as the waste disposal rate and investment cost coefficient increase. But when the waste disposal capacity of recyclers is insufficient to handle the generated C&D waste, recyclers can earn more profits.

　　湿地处理系统中的应用

　　Application in wetland treatment system

　　在寒冷温带地区，湿地系统处理各种废水的数量在稳步增加，包括垃圾填埋场渗滤液。在寒冷气候条件下，使用人工湿地（CWs）存在三大工程问题，即结冰、水文和温度对生物或微生物介导的处理过程的影响。例如，在斯堪的纳维亚半岛，由于现场 “高科技” 渗滤液处理系统建设和运营成本高昂，低成本的扩展曝气池和序批式反应器（SBR）在人工湿地处理之前通常能够成功去除有机物（化学需氧量 COD 和生化需氧量 BOD）和 NH4-N。垂直地下流系统由于在垂直过滤器中有更高的氧气可用性，可能优于水平流系统。在气温低于 -15°C 的地区，可能需要季节性储存冬季负荷。

　　In cold temperate regions, the amount of wastewater treated by wetland systems, including leachate from landfills, is steadily increasing. Under cold climate conditions, there are three major engineering issues with the use of constructed wetlands (CWs), namely the effects of icing, hydrology, and temperature on biological or microbial mediated treatment processes. For example, in the Scandinavian Peninsula, due to the high construction and operation costs of on-site "high-tech" leachate treatment systems, low-cost extended aeration tanks and sequencing batch reactors (SBR) can usually successfully remove organic matter (chemical oxygen demand COD and biochemical oxygen demand BOD) and NH4-N before artificial wetland treatment. Vertical underground flow systems may be superior to horizontal flow systems due to higher oxygen availability in vertical filters. In areas with temperatures below -15 ° C, seasonal storage of winter loads may be necessary.

　　公路施工中的应用

　　Application in highway construction

　　在寒冷气候下，公路工程沥青路面施工中，冷再生技术的施工效果受到一定影响。但通过合理的施工准备和技术使用，可以提高施工质量。例如，在公路冷再生施工中，需要针对沥青路面冷再生技术的特点，做好施工准备和技术应用，以确保工程建设质量。

　　In cold climates, the construction effect of cold recycling technology in asphalt pavement construction of highway engineering is somewhat affected. But through reasonable construction preparation and technical use, the construction quality can be improved. For example, in the cold recycling construction of highways, it is necessary to prepare and apply the cold recycling technology for asphalt pavement based on its characteristics to ensure the quality of the project construction.

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