Phosphorus and water recovery by a novel osmotic membrane bioreactor-reverse osmosis system.

An osmotic membrane bioreactor-reverse osmosis (OMBR-RO) hybrid system integrated with periodic microfiltration (MF) extraction was evaluated for simultaneous phosphorus and clean water recovery from raw sewage. In this hybrid system, the forward osmosis membrane effectively retained inorganic salts and phosphate in the bioreactor, while the MF membrane periodically bled them out for phosphorus recovery with pH adjustment. The RO process was used for draw solute recovery and clean water production. Results show that phosphorus recuperation from the MF permeate was most effective when the solution pH was adjusted to 10, whereby the recovered precipitate contained 15-20% (wt/wt) of phosphorus. Periodic MF extraction also limited salinity build-up in the bioreactor, resulting in a stable biological performance and an increase in water flux during OMBR operation. Despite the build-up of organic matter and ammonia in the draw solution, OMBR-RO allowed for the recovery of high quality reused water.

[1]  H. Ngo,et al.  Applicability of a novel osmotic membrane bioreactor using a specific draw solution in wastewater treatment. , 2015, The Science of the total environment.

[2]  E R Cornelissen,et al.  The innovative osmotic membrane bioreactor (OMBR) for reuse of wastewater. , 2011, Water science and technology : a journal of the International Association on Water Pollution Research.

[3]  D.J.H. Harmsen,et al.  Membrane fouling and process performance of forward osmosis membranes on activated sludge , 2008 .

[4]  Tzahi Y Cath,et al.  Forward osmosis for concentration of anaerobic digester centrate. , 2007, Water research.

[5]  Tzahi Y Cath,et al.  Solute coupled diffusion in osmotically driven membrane processes. , 2009, Environmental science & technology.

[6]  Tzahi Y. Cath,et al.  Long-term pilot scale investigation of novel hybrid ultrafiltration-osmotic membrane bioreactors , 2015 .

[7]  S A Parsons,et al.  Struvite formation and the fouling propensity of different materials. , 2002, Water research.

[8]  Hang-sik Shin,et al.  Effects of salinity on the characteristics of biomass and membrane fouling in membrane bioreactors. , 2013, Bioresource technology.

[9]  Simon Judd,et al.  Effect of high salinity on activated sludge characteristics and membrane permeability in an immersed membrane bioreactor , 2006 .

[10]  Long D. Nghiem,et al.  Rejection of pharmaceutically active compounds by forward osmosis: Role of solution pH and membrane orientation , 2012 .

[11]  H. Paerl,et al.  Controlling Eutrophication: Nitrogen and Phosphorus , 2009, Science.

[12]  Menachem Elimelech,et al.  A forward osmosis-membrane distillation hybrid process for direct sewer mining: system performance and limitations. , 2013, Environmental science & technology.

[13]  Chuyang Y. Tang,et al.  Performance of a submerged anaerobic membrane bioreactor with forward osmosis membrane for low-strength wastewater treatment. , 2014, Water research.

[14]  Wenshan Guo,et al.  High retention membrane bioreactors: challenges and opportunities. , 2014, Bioresource technology.

[15]  Xinde Cao,et al.  Carbonate and magnesium interactive effect on calcium phosphate precipitation. , 2008, Environmental science & technology.

[16]  Pierre Le-Clech,et al.  Trace organic solutes in closed-loop forward osmosis applications: influence of membrane fouling and modeling of solute build-up. , 2013, Water research.

[17]  Guanglei Qiu,et al.  Direct and complete phosphorus recovery from municipal wastewater using a hybrid microfiltration-forward osmosis membrane bioreactor process with seawater brine as draw solution. , 2015, Environmental science & technology.

[18]  Bin Cao,et al.  State of the art of osmotic membrane bioreactors for water reclamation. , 2012, Bioresource technology.

[19]  O. H. Lowry,et al.  Protein measurement with the Folin phenol reagent. , 1951, The Journal of biological chemistry.

[20]  Long D Nghiem,et al.  Performance of a novel osmotic membrane bioreactor (OMBR) system: flux stability and removal of trace organics. , 2012, Bioresource technology.

[21]  B. Rittmann,et al.  A unified theory for extracellular polymeric substances, soluble microbial products, and active and inert biomass. , 2002, Water research.

[22]  Anthony G Fane,et al.  Impacts of salinity on the performance of high retention membrane bioreactors for water reclamation: A review. , 2010, Water research.

[23]  Guanglei Qiu,et al.  Direct phosphorus recovery from municipal wastewater via osmotic membrane bioreactor (OMBR) for wastewater treatment. , 2014, Bioresource technology.

[24]  Michael A. Wilson,et al.  Effects of humic material on the precipitation of calcium phosphate , 2004 .

[25]  Yueping Ren,et al.  Integration of micro-filtration into osmotic membrane bioreactors to prevent salinity build-up. , 2014, Bioresource technology.

[26]  Y. Qian,et al.  Simultaneous removal of phosphorus and potassium from synthetic urine through the precipitation of magnesium potassium phosphate hexahydrate. , 2011, Chemosphere.

[27]  H H Ngo,et al.  Enhanced biological phosphorus removal and its modeling for the activated sludge and membrane bioreactor processes. , 2013, Bioresource technology.

[28]  F. Smith,et al.  COLORIMETRIC METHOD FOR DETER-MINATION OF SUGAR AND RELATED SUBSTANCE , 1956 .

[29]  Yonghui Song,et al.  Effects of solution conditions on the precipitation of phosphate for recovery. A thermodynamic evaluation. , 2002, Chemosphere.

[30]  C. Craft.  Biogeochemistry of Wetlands: Science and Applications , 2009 .

[31]  P. Bishop,et al.  Comparison of extraction methods for quantifying extracellular polymers in biofilms , 1999 .

[32]  Stuart J. Khan,et al.  Effect of mixed liquor pH on the removal of trace organic contaminants in a membrane bioreactor. , 2010, Bioresource technology.

[33]  Amy E. Childress,et al.  The forward osmosis membrane bioreactor: A low fouling alternative to MBR processes , 2009 .

[34]  C. D. Lundin,et al.  A multi-barrier osmotic dilution process for simultaneous desalination and purification of impaired water , 2010 .

[35]  Sher Jamal Khan,et al.  Microbial toxicity effects of reverse transported draw solute in the forward osmosis membrane bioreactor (FO-MBR) , 2013 .