GB/T 17923-1999
Replaced
T/CI 164-2022
Abolished
Group standards
T/CI 164-2022 The anaerobic ammonia oxidation treatment process and operating debugging specifications for the desulfurization and denitrification tail liquid from coal-fired power plants
T/CI 164-2022 The anaerobic ammonia oxidation treatment process and operating debugging specifications for the desulfurization and denitrification tail liquid from coal-fired power plants
Price:
$ 20.00
Basic Information
Standard Code:
T/CI 164-2022
Standard Type:
Group standards
Standard Status:
Abolished
is_force_gb:
no
CCS Name:
Industrial wastewater and pollutant analysis methods
ICS Name:
Liquid waste, sludge
Publish Date:
2022-12-26
Implement Date:
2022-12-26
Scope
Scope: This document specifies the terms and definitions, process flow, design parameters, technical requirements, and operation and commissioning of the anaerobic ammonia oxidation treatment process for desulfurization and denitrification tail liquids from coal-fired power plants in China. This document is applicable to the anaerobic ammonia oxidation treatment process and operation and commissioning of desulfurization and denitrification tail liquids from coal-fired power plants in China; Main technical content: Process flow 4.1 Basic principles The selection of the anaerobic ammonia oxidation treatment process for desulfurization and denitrification tail liquids from coal-fired power plants shall comply with the provisions of GB 50660 and DL/T 5046, and meet the following general requirements: (1) The process flow shall be advanced and reasonable, and technically feasible; (2) It shall meet the prescribed emission or reuse water standards and achieve good treatment effects; (3) It shall have a small footprint, low energy consumption, and low sludge production; (4) The operating costs shall be reasonable; (5) The operation and control shall be simple and convenient. 4.2 Process flow selection 4.2.1 Two-stage nitrification-anaerobic ammonia oxidation process Figure 1: Two-stage nitrification-anaerobic ammonia oxidation process flowchart The anaerobic ammonia oxidation process is divided into two stages. In the first stage, half of the NH4+ is converted to NO2- in an aerobic reactor. In the second stage, the remaining NH4+ and NO2- are directly converted to N2 in an anaerobic reactor. Pre-treatment includes neutralization, coagulation sedimentation, and air flotation. The C/N ratio of the effluent from this stage should be controlled within 3:1; nitrification can be achieved by controlling dissolved oxygen (oxygen-limited autotrophic nitrification-denitrification process, i.e., OLAND process), pH and free ammonia, and controlling reactor temper
Development Information
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