Ozone and biofiltration as an alternative to reverse osmosis for removing PPCPs and micropollutants from treated wastewater.

This pilot-scale research project investigated and compared the removal of pharmaceuticals and personal care products (PPCPs) and other micropollutants from treated wastewater by ozone/biofiltration and reverse osmosis (RO). The reduction in UV254 absorbance as a function of ozone dose correlated well with the reduction in nonbiodegradable dissolved organic carbon and simultaneous production of biodegradable dissolved organic carbon (BDOC). BDOC analyses demonstrated that ozone does not mineralize organics in treated wastewater and that biofiltration can remove the organic oxidation products of ozonation. Biofiltration is recommended for treatment of ozone contactor effluent to minimize the presence of unknown micropollutant oxidation products in the treated water. Ozone/biofiltration and RO were compared on the basis of micropollutant removal efficiency, energy consumption, and waste production. Ozone doses of 4-8 mg/L were nearly as effective as RO for removing micropollutants. When wider environmental impacts such as energy consumption, water recovery, and waste production are considered, ozone/biofiltration may be a more desirable process than RO for removing PPCPs and other trace organics from treated wastewater.

[1]  A. E. Greenberg,et al.  Standard methods for the examination of water and wastewater : supplement to the sixteenth edition , 1988 .

[2]  Frank Sacher,et al.  Removal of pharmaceuticals during drinking water treatment. , 2002, Environmental science & technology.

[3]  Shane A. Snyder,et al.  Role of membranes and activated carbon in the removal of endocrine disruptors and pharmaceuticals , 2007 .

[4]  H Kroiss,et al.  Removal of selected pharmaceuticals, fragrances and endocrine disrupting compounds in a membrane bioreactor and conventional wastewater treatment plants. , 2005, Water research.

[5]  Yoshimasa Watanabe,et al.  Elimination of selected acidic pharmaceuticals from municipal wastewater by an activated sludge system and membrane bioreactors. , 2007, Environmental science & technology.

[6]  J. Pinnekamp,et al.  Evaluation of advanced treatment technologies for the elimination of pharmaceutical compounds. , 2007, Water science and technology : a journal of the International Association on Water Pollution Research.

[7]  S. Jørgensen,et al.  Occurrence, fate and effects of pharmaceutical substances in the environment--a review. , 1998, Chemosphere.

[8]  Shane A. Snyder,et al.  Pharmaceuticals, Personal Care Products, and Endocrine Disruptors in Water: Implications for the Water Industry , 2003 .

[9]  J. Keller,et al.  Biofiltration of wastewater treatment plant effluent: effective removal of pharmaceuticals and personal care products and reduction of toxicity. , 2011, Water research.

[10]  T. Melin,et al.  Removal of endocrine disrupting compounds with membrane processes in wastewater treatment and reuse. , 2004, Water science and technology : a journal of the International Association on Water Pollution Research.

[11]  E R Cornelissen,et al.  Influence of electrostatic interactions on the rejection with NF and assessment of the removal efficiency during NF/GAC treatment of pharmaceutically active compounds in surface water. , 2007, Water research.

[12]  Joan Oppenheimer,et al.  Occurrence and suitability of sucralose as an indicator compound of wastewater loading to surface waters in urbanized regions. , 2011, Water research.

[13]  Martin Krauss,et al.  Kinetic assessment and modeling of an ozonation step for full-scale municipal wastewater treatment: micropollutant oxidation, by-product formation and disinfection. , 2011, Water research.

[14]  Martin Krauss,et al.  Elimination of organic micropollutants in a municipal wastewater treatment plant upgraded with a full-scale post-ozonation followed by sand filtration. , 2009, Environmental science & technology.

[15]  M. Jekel,et al.  SUVA as control parameter for the effective ozonation of organic pollutants in secondary effluent. , 2007, Water science and technology : a journal of the International Association on Water Pollution Research.

[16]  S. Meriç,et al.  Occurrence patterns of pharmaceuticals in water and wastewater environments , 2007, Analytical and bioanalytical chemistry.

[17]  K. Kimura,et al.  Removal of pharmaceutical compounds by submerged membrane bioreactors (MBRs) , 2005 .

[18]  0. A. Dechlorinated.  Biological filtration for BOM and particle removal : a critical review , 2006 .

[19]  Irwin H. Suffet,et al.  Method development for measuring biodegradable organic carbon in reclaimed and treated wastewaters , 1998 .

[20]  Carson Odell Lee.  Ozone and biofiltration as an alternative to reverse osmosis for removing PPCPs and EDCs from wastewater , 2010 .

[21]  Susumu Kawamura,et al.  Cost Estimating Manual for Water Treatment Facilities , 2008 .

[22]  E. Wert,et al.  Removal of EDCs and Pharmaceuticals in Drinking and Reuse Treatment Processes , 2007 .

[23]  D. Burrini,et al.  Formation and Removal of Biodegradable Ozonation By-Products during Ozonation-Biofiltration Treatment: Pilot-Scale Evaluation , 1999 .

[24]  Ronald E. Zegers,et al.  Ozone Oxidation of Endocrine Disruptors and Pharmaceuticals in Surface Water and Wastewater , 2006 .

[25]  J. Keller,et al.  Removal of micropollutants and reduction of biological activity in a full scale reclamation plant using ozonation and activated carbon filtration. , 2010, Water research.

[26]  Jeffrey Q. Adams,et al.  Modified Indigo Method For Gaseous And Aqueous Ozone Analyses , 1995 .

[27]  Mira Petrovic,et al.  Analysis of pharmaceuticals in wastewater and removal using a membrane bioreactor , 2006, Analytical and bioanalytical chemistry.

[28]  Daniel Stalter,et al.  Comparative toxicity assessment of ozone and activated carbon treated sewage effluents using an in vivo test battery. , 2010, Water research.

[29]  Hiroaki Tanaka,et al.  Use of Ozone‐Based Processes for the Removal of Pharmaceuticals Detected in a Wastewater Treatment Plant , 2010, Water environment research : a research publication of the Water Environment Federation.

[30]  M. Jekel,et al.  Measurement of the initial phase of ozone decomposition in water and wastewater by means of a continuous quench-flow system: application to disinfection and pharmaceutical oxidation. , 2006, Water research.

[31]  Shane A Snyder,et al.  Using ultraviolet absorbance and color to assess pharmaceutical oxidation during ozonation of wastewater. , 2009, Environmental science & technology.

[32]  J E Drewes,et al.  Fate of pharmaceuticals during indirect potable reuse. , 2002, Water science and technology : a journal of the International Association on Water Pollution Research.

[33]  Christopher Bellona,et al.  Rejection of wastewater‐derived micropollutants in high‐pressure membrane applications leading to indirect potable reuse , 2005 .