Process information
| Key Data Set Information | |
| Location | GZ-GD-CN |
| Geographical representativeness description | 广州市白云区沙太北路以东、犀牛南路以北地段 |
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| Use advice for data set | When utilizing the process data for Life Cycle Assessment, it is important to ensure that the boundary conditions match the intended application. For this specific underground AAO+MBR treatment process, users should take into account the geographic location and the characteristics of the wastewater treated. It's crucial to consider specific regional regulations, technology scale, and operational parameters for consistency in environmental impact assessment. Additionally, potential waste sludge treatment and energy consumption should be accounted for in the assessment to ensure a comprehensive analysis. |
| Technical purpose of product or process | The process described refers to an Advanced Oxidation Process (AAO) combined with a Membrane Bioreactor (MBR) used for underground water treatment. This unit process is located in the area to the east of Shatai North Road and to the north of Xiniu South Road in Baiyun District, Guangzhou city. It is specialized for the treatment of municipal or industrial wastewater by effectively removing organic pollutants and pathogens, making the water suitable for reuse or safe release into the environment. |
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| General comment on data set | In municipal wastewater treatment, the underground AAO+MBR treatment process is an advanced sewage treatment technology. This process first utilizes AAO (Anaerobic-Anoxic-Oxic) system for biological degradation and ammonia nitrogen removal, followed by membrane filtration in MBR (Membrane Bioreactor) to thoroughly remove suspended solids and microorganisms. In the AAO process, wastewater comes into contact with biological membranes under aerobic conditions, where microorganisms degrade organic matter while oxidizing ammonia nitrogen. The MBR system utilizes microfiltration membranes to separate water from sludge, achieving efficient solid-liquid separation and microbial retention. This underground treatment process has advantages such as small footprint, high treatment efficiency, and stable effluent quality, making it suitable for sewage treatment needs in urban areas with limited underground space. |
| Copyright | No |
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| Technology description including background system | In municipal wastewater treatment, the underground AAO+MBR treatment process exhibits the following technical characteristics:Subsurface Layout: The AAO+MBR treatment process is typically designed for subsurface layout, utilizing underground space to accommodate biological reactors and membrane modules, reducing surface footprint and protecting equipment from external environmental impacts.Membrane Bioreactor (MBR): This process employs membrane bioreactor (MBR) technology, effectively isolating water and microorganisms through microfiltration membranes to achieve solid-liquid separation. Membrane modules require regular cleaning and maintenance to ensure stable operation and long-term service life.Anaerobic-Anoxic-Oxic (AAO) Treatment Process: The AAO process combines aerobic and anoxic treatment zones to achieve removal of organic matter and nutrients such as nitrogen and phosphorus within a single system. Control of parameters such as oxygen supply, mixing rate, and gas-liquid ratio in aerobic and anoxic zones is necessary to maintain optimal microbial growth conditions and reaction efficiency.Operational Conditions: For the operation of the AAO+MBR treatment process, it is essential to periodically monitor and adjust membrane module flux, transmembrane pressure, and cleaning cycles to ensure stable operation and efficient treatment performance.Related Upstream and Downstream Processes: Upstream processes for this technology include wastewater pretreatment such as screening, grit removal, and sedimentation to remove large particles and settleable solids. Downstream processes may involve membrane module cleaning and maintenance, as well as additional treatment steps such as disinfection or advanced oxidation to ensure the final treated water quality meets discharge standards. |
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