HUANGJun,MAXiao-hang,LIUTian-shun,et al.Design Case on Renovation and Expansion of a Waterworks in Lüliang[J].China Water & Wastewater,2025,41(18):48-53.
吕梁某水厂改扩建工程设计实例
- Title:
- Design Case on Renovation and Expansion of a Waterworks in Lüliang
- Keywords:
- waterworks; renovation and expansion; micro-polluted raw water; production wastewater; self?use water rate; recycle pool
- 摘要:
- 吕梁某水厂一期建设规模5×104 m3/d，二期扩建5×104 m3/d，总规模达到10×104 m3/d。水源为吕梁山区的水库水，水质优良，具有微污染、冬季低温低浊、汛期浊度偏高等特点。采用预氧化+机械混凝+斜管沉淀+V型滤池+臭氧接触+活性炭吸附+消毒处理工艺，设计出水水质执行《生活饮用水卫生标准》（GB 5749—2022）。通过精细化设计，适当降低核心工段的处理负荷，加强关键部位的细节设计，提高出水水质保障率；采用多种措施降低自用水率，节水降耗，减少水资源浪费；通过高标准建设废水处理系统，减少污染物排放，可为类似工程的设计提供借鉴。
- Abstract:
- The phase Ⅰ project of a waterworks in Lüliang has a construction capacity of 5×104 m3/d, with a planned expansion of an additional 5×104 m3/d in the phase Ⅱ project, resulting in a total capacity of 10×104 m3/d. The water supply originates from a reservoir located in the Lüliang mountainous region, which is known for its high-quality water. The raw water is characterized by micro-pollution, low temperature, low turbidity in water, and a relatively higher turbidity during the flood season. The water treatment process incorporates the following stages: pre-oxidation, mechanical coagulation, inclined tube sedimentation, V-shaped filtration, ozonation contact reactor, activated carbon adsorption, and disinfection. The designed effluent quality meets the requirements specified in Standards for Drinking Water Quality (GB 5749-2022). Through optimized design, the processing load on the core section was effectively reduced, while the detailed design of critical components was enhanced, thereby improving the reliability of effluent water quality. A series of measures were implemented to lower the system’s self-use water rate, contributing to water conservation, reduced operational costs, and minimized water resource wastage. Wastewater treatment systems with high discharge standards were constructed to minimize pollutant discharge. This project can serve as a reference for the design and implementation of similar water treatment facilities.
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