Project Cases
Membrane Aerated Biofilm Reactor (MABR)
Membrane Aerated Biofilm Reactor (MABR)
The membrane aerated biofilm reactor (MABR) technology is a cutting-edge wastewater treatment technology that hybridizes gas membrane technology with biofilm technology. Direct oxygen delivery to the biofilm can be obtained by passing air through the hollow fiber membranes. Oxygen and organic substrates (nutrients) enter the biofilm from two different sides. This creates a cross-transport of the substrates allowing the biofilm to form distinct layers possessing unique properties that can achieve single-stage COD and nitrogen removal. By combining the multi-functional biofilm and the highly efficient membrane-facilitated oxygen delivery system, a cost-effective wastewater treatment solution can be obtained, therefore giving it technical advantages, cost advantages, engineering advantages, and operational advantages over conventional water treatment technologies.
The DongpaiMingQu discharge basin
The DongpaiMingQu discharge basin is in the east area of Tianjin Economic and Technological Development Zone. The length of the treatment section is 2.3km, and the width is 25m to 40m. The flow rate of the rainwater runoffs to the discharge basin can reach up to 80m³/s. The basin also contains high levels of salinity due to seawater intrusion making any types of biological treatment extremely difficult. The channel’s cross-section adopts a trapezoidal cross-section. 4 pumping stations directly discharge collected stormwater from throughout the city and wastewater treatment plant tail water into the basin.
Shanxi rural wastewater treatment station upgrade
The rural wastewater treatment station has a sewage treatment capacity of 800 m3/ d. The sewage treatment plant was upgraded with MABR modules to stabilize the COD, Ammonia Nitrogen, and other indicators under low-temperature conditions in the effluent. The MABR also improved the effluent quality to class V of the national surface water standard.
Shanxi County sewage treatment plant upgrade project
The capacity of the sewage treatment plant is 8,000m3/d and is an A2O WWTP. MABR modules were installed to ensure that COD, Ammonia Nitrogen, and other indicators are stable at low temperatures to meet class V of the national surface water standard.
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