scholarly journals Fate of Pharmaceuticals in a Submerged Membrane Bioreactor Treating Hospital Wastewater

2021 ◽  
Vol 3 ◽  
Author(s):  
Bhagyashree Tiwari ◽  
Yassine Ouarda ◽  
Patrick Drogui ◽  
Rajeshwar D. Tyagi ◽  
Marc Antoine Vaudreuil ◽  
...  
Keyword(s):  
Membrane Bioreactor ◽  
Growth Promoter ◽  
Removal Mechanism ◽  
Hospital Wastewater ◽  
Entire Study ◽  
Submerged Membrane Bioreactor ◽  
Treatment Conditions ◽  
Pharmaceutical Pollutants ◽  
High Concentrations ◽  
Optimized Treatment

The fate of 12 pharmaceutical pollutants was investigated to understand their removal mechanism during hospital wastewater (HWW) treatment in submerged membrane bioreactor (SMBR). High concentrations of anti-depressant (venlafaxine and desvenlafaxine), analgesic (ibuprofen and hydroxy-ibuprofen), and caffeine were detected in the HWW during the entire study period. The SMBR showed high removal >70% of antibiotics (sulfamethoxazole and clarithromycin), beta-blocker (acebutolol), hormone (estrone), and caffeine via biodegradation. The partial degradation of diclofenac, venlafaxine, and desvenlafaxine in SMBR indicates the growth promoter or agent requirement, which could facilitate the metabolism and co-metabolism of these pharmaceuticals by microorganisms. The study demonstrated that the major removal mechanism of pharmaceuticals in SMBR at optimized treatment conditions was biodegradation for the majority of examined pharmaceuticals. The assessment of SMBR performance at the low temperature of 15 and 10°C resulted in the drop of biodegradation efficiency of SMBR, affecting overall pharmaceuticals removal.

scholarly journals Comparative study of submerged membrane bioreactor and extended aeration process coupled with tubesettler for hospital wastewater treatment

2020 ◽  
Vol 59 (6) ◽  
pp. 4633-4641
Author(s):  
Rachida El Morabet ◽  
Roohul Abad Khan ◽  
Javed Mallick ◽  
Nadeem A. Khan ◽  
Sirajuddin Ahmed ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Comparative Study ◽  
Membrane Bioreactor ◽  
Hospital Wastewater ◽  
Submerged Membrane Bioreactor ◽  
Aeration Process

Treatment of hospital wastewater using a submerged membrane bioreactor

2004 ◽  
Vol 39 (11) ◽  
pp. 1427-1431 ◽  
Author(s):  
Xianghua Wen ◽  
Hangjiu Ding ◽  
Xia Huang ◽  
Ruopeng Liu
Keyword(s):  
Membrane Bioreactor ◽  
Hospital Wastewater ◽  
Submerged Membrane Bioreactor

scholarly journals Stoichiometry and kinetics of hospital wastewater treatment in a submerged membrane bioreactor

2019 ◽  
Vol 164 ◽  
pp. 18-30
Author(s):  
Yusmel González-Hernández ◽  
Sylvie Schetrite ◽  
Claire Albasi ◽  
Marion Alliet ◽  
Ulises Jáuregui-Haza
Keyword(s):  
Wastewater Treatment ◽  
Membrane Bioreactor ◽  
Hospital Wastewater ◽  
Submerged Membrane Bioreactor ◽  
Kinetics Of

Activities of Activated Sludge Affected by Pharmaceutical Wastewater in a Membrane Bioreactor

2012 ◽  
Vol 610-613 ◽  
pp. 1426-1431 ◽  
Author(s):  
Yuan Hong Ding ◽  
Qing Wang ◽  
Hong Qiang Ren
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Organic Compounds ◽  
Membrane Bioreactor ◽  
Ammonia Nitrogen ◽  
Nitrifying Bacteria ◽  
Pharmaceutical Wastewater ◽  
Submerged Membrane Bioreactor ◽  
High Concentrations ◽  
Final Effluent

a submerged membrane bioreactor was used to treat the effluent of a pharmaceutical wastewater treatment system, the treated water is rich in ammonia nitrogen and organic compounds (NH4-N, averaged in 78.1 mg/L; COD, averaged in 189.5 mg/L), the final effluent of membrane bioreactor was stably below 50 mg/L COD and 40 mg/L NH4-N respectively, the activity of nitrifying bacteria was inhibited by high concentrations of organic compounds and ammonia nitrogen, a rapid declination of filtration was probably resulted form high concentrations of organic compounds and biomass.

The bacterial community structure of submerged membrane bioreactor treating synthetic hospital wastewater

2019 ◽  
Vol 286 ◽  
pp. 121362 ◽  
Author(s):  
Bhagyashree Tiwari ◽  
Balasubramanian Sellamuthu ◽  
Sarah Piché-Choquette ◽  
Patrick Drogui ◽  
Rajeshwar D. Tyagi ◽  
...  
Keyword(s):  
Community Structure ◽  
Bacterial Community ◽  
Bacterial Community Structure ◽  
Membrane Bioreactor ◽  
Hospital Wastewater ◽  
Submerged Membrane Bioreactor

Compositional Microbial-Community Shift of Submerged Membrane Bioreactor Treating Hospital Wastewater at Varying Temperatures

2021 ◽  
Vol 147 (2) ◽  
pp. 04020152
Author(s):  
Bhagyashree Tiwari ◽  
Balasubramanian Sellamuthu ◽  
Sarah Piché-Choquette ◽  
Patrick Drogui ◽  
Rajeshwar D. Tyagi ◽  
...  
Keyword(s):  
Microbial Community ◽  
Membrane Bioreactor ◽  
Hospital Wastewater ◽  
Submerged Membrane Bioreactor ◽  
Community Shift

scholarly journals Preliminary Study of Hospital Wastewater Treatment with a Submerged Membrane Bioreactor (SMBR): Case Study of Songklanagarind Hospital – Thailand

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
U. Preecha ◽  
P. Sridang ◽  
P. Wanichapichart
Keyword(s):  
Wastewater Treatment ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Initial Period ◽  
Operating Conditions ◽  
Total Biomass ◽  
Hospital Wastewater ◽  
Permeate Flux ◽  
Submerged Membrane Bioreactor ◽  
Working Volume

The objective of this research was to study hospital wastewater treatment using a submerged membrane bioreactor (SMBR). The lab scale unit of SMBR with a working volume of 20 liters was operated at a hydraulic retention time of 0.416 day and 0.208 day at F/M ratio of 0.18 day–1 and 0.29 day–1. The operating conditions were set up to provide good biological treatment without sludge extraction, and two different permeate flux values were studied. The performance of membrane was studied by monitoring the variation of transmenbrane pressure (TMP) during filtration runs. The efficiency of MBR was investigated according to the daily measurements of pH, dissolved oxygen and temperature. The COD, BOD5, NH4+–N, TKN, color, turbidity, SS and Escherichia coli (E.coli) in influent and effluent were analyzed. Membrane fouling intensity occurred slowly when the system operated with flux at 10 L/h/m2 and 20 L/h/m2, which induced high TMP at the initial period of filtration. The fouling rate was at about 0.3022 mbar/day for the permeation of flux at 10 L /h/m2. The fouling rate still remained at 0.2774 mbar/day for 20 L/h/m2. The results showed the great effect of membrane use for total biomass retention and the removal rate of COD, BOD5 and E.coli were over 90%. The characteristics of sludge in SMBR showed healthy floc formations with good settling. Although the ratio of MLVSS/MLSS was lower than the normal range (about 0.2), it was found that the average values of COD and NH4+–N in permeate were lower than 2–80 mg/L and 0.05–6.755 mg/L while the value of turbidity was also less than 3 NTU.

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