HJ 2021-2012
Technical specifications of internal circulation aerobic biological fluidized bed for wastewater treatment
内循环好氧生物流化床污水处理工程技术规范
Catalogue
前言 → 1 适用范围 → 2 规范性引用文件 → 3 术语和定义 → 4 设计水量和设计水质 → 5 总体要求 → 6 工艺设计 → 7 检测与过程控制 → 8 主要辅助工程 → 9 施工与验收 → 10 运行与维护 Foreword → 1 Scope → 2 Normative References → 3 Terms and Definitions → 4 Design Flow and Design Water Quality → 5 General Requirements → 6 Process Design → 7 Detection and Process Control → 8 Main Auxiliary Engineering → 9 Construction and Acceptance → 10 Operation and Maintenance
Scope
This standard specifies the technical requirements for process design, main equipment, detection and control, and operation management of wastewater treatment engineering using internal circulation aerobic biological fluidized bed. This standard is applicable to municipal wastewater or industrial wastewater treatment projects adopting the internal circulation aerobic biological fluidized bed process, and can serve as the technical basis for environmental impact assessment, design, construction, environmental protection acceptance, and post-construction operation and management.
本标准规定了内循环好氧生物流化床污水处理工程的工艺设计、主要设备、检测和控制、运行管理的技术要求。本标准适用于采用内循环好氧生物流化床工艺的城镇污水或工业废水处理工程，可作为环境影响评价、设计、施工、环境保护验收及建成后运行与管理的技术依据。
Normative References
Keywords
Application Summary AI generated
This standard is used by wastewater treatment engineering designers, construction teams, and operation managers to guide the design, construction, and operation of internal circulation aerobic biological fluidized bed systems for municipal and industrial wastewater. It ensures efficient and stable treatment performance by specifying process parameters, equipment selection, and operational requirements, helping facilities meet discharge standards and prevent water pollution.
该标准主要供污水处理工程设计单位、施工单位和运营管理人员使用，用于指导内循环好氧生物流化床工艺在城镇污水和工业废水处理工程中的设计、建设和运行。它通过规范工艺参数、设备选型和操作要求，确保污水处理系统高效稳定运行，达到排放标准，对防治水污染具有重要意义。
AI Summary AI generated
This standard specifies technical requirements for wastewater treatment using internal circulation aerobic biological fluidized bed, covering process design, equipment, detection and control, and operation management. It applies to municipal and industrial wastewater treatment and serves as a technical basis for environmental impact assessment, design, construction, and acceptance. Key technical parameters include reactor height-to-diameter ratio of 3-8, carrier volume of 15%-30%, volumetric loading rates, and design flow/water quality calculation methods, with emphasis on nitrogen and phosphorus removal.
本标准规定了内循环好氧生物流化床污水处理工程的技术要求，涵盖工艺设计、设备、检测控制及运行管理。适用于城镇污水和工业废水处理，可作为环评、设计、施工和验收的技术依据。标准详细规定了流化床结构、载体选择、供氧系统、脱氮除磷要求等关键技术参数，如好氧区高径比3~8、载体投加量15%~30%、容积负荷等，并给出了设计水量和水质计算方法。
Key Sentences extracted from text
本标准规定了内循环好氧生物流化床污水处理工程的工艺设计、主要设备、检测和控制、运行管理的技术要求。
流化床应按旱流污水量计算。
好氧反应区的高径比宜为3~8。
投加载体的体积宜为好氧反应区体积的15%～30%。
流化床宜用于小型城镇污水和工业废水处理工程，其污水处理量宜小于10000 m3/d。
This standard specifies the technical requirements for process design, main equipment, detection and control, and operation management of wastewater treatment engineering using internal circulation aerobic biological fluidized bed.
The fluidized bed shall be calculated based on dry weather flow.
The height-to-diameter ratio of the aerobic reaction zone should be 3 to 8.
The volume of carrier added should be 15% to 30% of the volume of the aerobic reaction zone.
The fluidized bed is suitable for small-scale municipal wastewater and industrial wastewater treatment projects, with a treatment capacity preferably less than 10,000 m3/d.