Development of the anaerobic baffled reactor-membrane bioreactor (ABR-MBR) as a biological nutrient removal system for high-rise building wastewater recycling

2014 ◽  
Vol 54 (4-5) ◽  
pp. 908-915 ◽  
Author(s):  
Chavalit Ratanatamskul ◽  
Chakraphan Charoenphol ◽  
Kazuo Yamamoto
Keyword(s):  
Nutrient Removal ◽  
Membrane Bioreactor ◽  
Biological Nutrient Removal ◽  
Anaerobic Baffled Reactor ◽  
High Rise ◽  
High Rise Building ◽  
Wastewater Recycling ◽  
Removal System

The energy-saving anaerobic baffled reactor membrane bioreactor (EABR-MBR) system for recycling wastewater from a high-rise building

2015 ◽  
Vol 71 (12) ◽  
pp. 1838-1844 ◽  
Author(s):  
Chavalit Ratanatamskul ◽  
Chakraphan Charoenphol
Keyword(s):  
Energy Saving ◽  
Water Reuse ◽  
Membrane Bioreactor ◽  
Phosphorus Uptake ◽  
Phosphorus Concentration ◽  
Biological Phosphorus Removal ◽  
Anaerobic Baffled Reactor ◽  
High Rise ◽  
High Rise Building ◽  
Treated Effluent

A novel energy-saving anaerobic baffled reactor–membrane bioreactor (EABR-MBR) system has been developed as a compact biological treatment system for reuse of water from a high-rise building. The anaerobic baffled reactor (ABR) compartment had five baffles and served as the anaerobic degradation zone, followed by the aerobic MBR compartment. The total operating hydraulic retention time (HRT) of the EABR-MBR system was 3 hours (2 hours for ABR compartment and very short HRT of 1 hour for aerobic MBR compartment). The wastewater came from the Charoen Wisawakam building. The results showed that treated effluent quality was quite good and highly promising for water reuse purposes. The average flux of the membrane was kept at 30 l/(m2h). The EABR-MBR system could remove chemical oxygen demand, total nitrogen and total phosphorus from building wastewater by more than 90%. Moreover, it was found that phosphorus concentration was rising in the ABR compartment due to the phosphorus release phenomenon, and then the concentration decreased rapidly in the aerobic MBR compartment due to the phosphorus uptake phenomenon. This implies that phosphorus-accumulating organisms inside the EABR-MBR system are responsible for biological phosphorus removal. The research suggests that the EABR-MBR system can be a promising system for water reuse and reclamation for high-rise building application in the near future.

The invisible BNR plant provides high quality effluent and recreational area for densely populated urban area

2009 ◽  
Vol 4 (1) ◽  
Author(s):  
E. Choi ◽  
Z. Yun ◽  
K.S. Min
Keyword(s):  
Nutrient Removal ◽  
Operating Temperature ◽  
Treatment Plant ◽  
Ground Level ◽  
Biological Nutrient Removal ◽  
High Quality ◽  
Sand Filter ◽  
Sport Facilities ◽  
Final Effluent ◽  
Removal System

In a densely populated area, a large wastewater treatment plant (WWTP) has been constructed in the underground. The plant is practically “invisible” to visitors and neighbours, and the ground level is used as a park and sport facilities in order to avoid the “not in my backyard” phenomenon. The WWTP has a 5-stage biological nutrient removal system utilizing the denitrifying PAO (dPAO) with a step feed in order to treat the weak sewage with higher nutrient removal requirement. Although the underground installation could be expected to increase plant operating temperature, the temperature increase was only 1°C. The polished final effluent from a sand filter produced average TN and TP concentrations of 5.11 mg/L and 0.91 mg/L, respectively with SS concentrations of 0.61 mg/L, indicating that the dPAO system combined with sand filter effectively produced a high quality effluent.

Metagenomic and metabolomic analysis reveals the effects of chemical phosphorus recovery on biological nutrient removal system

2017 ◽  
Vol 328 ◽  
pp. 1087-1097 ◽  
Author(s):  
Hongliang Dai ◽  
Zheqin Dai ◽  
Lihong Peng ◽  
Yifeng Wu ◽  
Haiming Zou ◽  
...  
Keyword(s):  
Nutrient Removal ◽  
Phosphorus Recovery ◽  
Biological Nutrient Removal ◽  
Metabolomic Analysis ◽  
Removal System
Sign in / Sign up

Export Citation Format

Share Document