The City of Scottsdale Water Campus: A Complex State-of-the-Art Indirect Potable Reuse Project

2001 ◽  
Author(s):  
David M. Mansfield ◽  
Arthur A. Nunez
Keyword(s):  
State Of The Art ◽  
Complex State ◽  
Potable Reuse ◽  
Indirect Potable Reuse ◽  
The City

Two approaches to indirect potable reuse using membrane technology

2000 ◽  
Vol 41 (10-11) ◽  
pp. 149-156 ◽  
Author(s):  
J. Lozier
Keyword(s):  
Membrane Bioreactor ◽  
Wastewater Effluent ◽  
Secondary Effluent ◽  
Potable Reuse ◽  
Wwtp Effluent ◽  
Indirect Potable Reuse ◽  
Effluent Discharge ◽  
The City ◽  
Raw Wastewater ◽  
Bioreactor Process

A pilot study was conducted at McAllen, Texas to evaluate two microfiltration technologies, Memcor and ZeeWeed, to treat secondary effluent from the city of McAllen south WWTP. The objectives of the study were to compare the ability of Memcor and ZeeWeed to pretreat secondary effluent for subsequent processing by RO and to evaluate the ability of the ZenoGem membrane bioreactor process to directly treat screened, de-gritted wastewater to a quality suitable for direct processing by RO. The results showed both Memcor and ZeeWeed to be competitive in their ability to produce a high quality filtrate from secondary effluent. The results also indicated that the ZenoGem process is capable of producing a filtrate suitable for RO treatment while meeting the City's current wastewater effluent discharge requirements. Additionally, the ZenoGem treated McAllen's raw wastewater to a quality comparable to the city's existing WWTP effluent.

Using a membrane bioreactor/reverse osmosis system for indirect potable reuse

2001 ◽  
Vol 1 (5-6) ◽  
pp. 303-313 ◽  
Author(s):  
J. Lozier ◽  
A. Fernandez
Keyword(s):  
Drinking Water ◽  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Municipal Wastewater ◽  
Secondary Effluent ◽  
Potable Reuse ◽  
High Calcium ◽  
Indirect Potable Reuse ◽  
The City

The City of McAllen, Texas, with the assistance of CH2M HILL, has pilot tested an integrated membrane bioreactor (MBR)/reverse osmosis (RO) treatment train to reclaim municipal wastewater to a quality suitable for use as a new drinking water supply in the process called indirect potable reuse. Previous testing by the City (Phase 1) demonstrated the applicability and cost of microfiltration (Memcor and ZeeWeed systems) to enhance the quality of secondary effluent for subsequent treatment by RO and the feasibility of a membrane bioreactor system (ZenoGem) to produce RO feedwater directly from minimally processed sewage. Phase 2 testing, reported on in this paper, is designed to demonstrate reliable operation of MBR/RO treatment for processing screened, degritted sewage and that the effluent from such a train can meet all federal primary and State secondary drinking water regulations and comply with anticipated State requirements for indirect potable reuse. Results show the ZenoGem process to be reliable, require minimal operator attention and maintenance, produce an effluent that can be processed by RO with little fouling and that easily exceeds the City's current effluent discharge requirements relative to BOD, TSS and ammonia. The ZenoGem permeate quality exceeds RO feedwater criteria for turbidity and silt density index and RO system performance confirms minimal membrane fouling by particles. However, the high calcium hardness and phosphate levels in the City's wastewater (and ZenoGem permeate) caused mineral precipitation within the RO system when operated at higher recoveries. Precipitation can be controlled, however, by increased acidification of the RO feedwater.

Treatment of Trace Organic Compounds by Membrane Processes: At the Lake Arrowhead Water Reuse Pilot Plant

1999 ◽  
Vol 40 (4-5) ◽  
pp. 293-301 ◽  
Author(s):  
Bruno B. Levine ◽  
Kapal Madireddi ◽  
Valentina Lazarova ◽  
Michael K. Stenstrom ◽  
Mel Suffet
Keyword(s):  
Pilot Plant ◽  
Water Reuse ◽  
Ultra Violet ◽  
Treatment Efficiency ◽  
Small Molecular Weight ◽  
Potable Reuse ◽  
Low Concentrations ◽  
Neutral Compounds ◽  
Indirect Potable Reuse ◽  
Trace Organic

Organic and trace organic performance data for ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) at the Lake Arrowhead water reclamation pilot plant are analyzed to determine the treatment efficiency of these processes in an indirect potable reuse design. Four organic parameters were studied: dissolved organic carbon (DOC), ultra-violet absorbance at 254 nm (UV-254), SUVA and base neutral analysis (BNA). UF and NF removed the larger compounds from the influent, but had no significant impact on the base neutral fraction with the exception of sterols. The RO process removed DOC and UV-absorbance compounds from the effluent to their respective detection limits. Base neutral compounds were significantly removed by RO, leaving at extremely low concentrations small molecular weight compounds, indicating indirect potable reuse is technically feasible.

scholarly journals An Australian perspective on DPR: technologies, sustainability and community acceptance

2015 ◽  
Vol 6 (3) ◽  
pp. 355-361 ◽  
Author(s):  
Ian B. Law
Keyword(s):  
Water Supply ◽  
Recent Work ◽  
Western Australia ◽  
Community Education ◽  
Water Recycling ◽  
Potable Reuse ◽  
Community Acceptance ◽  
Indirect Potable Reuse ◽  
Direct Potable Reuse

Australia has had guidelines in place for water recycling (for all uses other than potable reuse) since 2006. These guidelines were extended in May 2008 to cover potable reuse and have since been applied to two potable reuse schemes – one in Brisbane (Queensland) in 2011 and the second in Perth (Western Australia) in 2013. These guidelines cover both indirect potable reuse and direct potable reuse (DPR) and outline the steps that must be followed in the planning and validation of such schemes. This paper summarizes: (i) recent work carried out in Australia on treatment trains and technologies suitable for DPR; (ii) sustainability considerations of DPR and how it compares with other water supply options; and (iii) developments in community education and engagement in the potable reuse space.

The fate of microplastics in natural and engineered aquatic systems: A case study of unplanned indirect potable reuse

2021 ◽  
pp. 100302
Author(s):  
Swadhina Priyadarshini Lenka ◽  
Tahereh Jasemizad ◽  
Iraj Rezapour Balaneji ◽  
Brandon Huang ◽  
Benjamin Campbell ◽  
...  
Keyword(s):  
Aquatic Systems ◽  
Potable Reuse ◽  
Indirect Potable Reuse

Public Communication as an intersection for the construction of a MIL City concept: the São Paulo City

2021 ◽  
pp. 244-255
Author(s):  
S. Navacinsk ◽  
E. Gardinali
Keyword(s):  
Public Interest ◽  
State Of The Art ◽  
The State ◽  
Public Communication ◽  
Exploratory Research ◽  
Secondary Sources ◽  
The City

In this article we intend to analyze what is the state of the art in which the São Paulo City is in relation to the concept of Mil Cities, instituted in 2018 by UNESCO. From a group of metrics developed by the institu­ tion, we intend to see and measure effective actions that have already been implemented or are under development, that can serve as a basis to enable the construction of a MIL City in the analyzed public institu­ tion. In this tracking we want to understand how public communication from the perspective of public interest can establish itself as a paradigm, when governments, organizations and society demand a new and higher level of interlocution and exchange, with the purpose of transforming reality for a project that can transform the city of São Paulo into a MIL City. We use exploratory research in primary and secondary sources as a methodology.

Optimizing RO Design Criteria for Indirect Potable Reuse

2011 ◽  
Vol 3 (4) ◽  
pp. 40-45 ◽  
Author(s):  
Greg Wetterau ◽  
Paul Liu ◽  
Bruce Chalmers ◽  
Tom Richardson ◽  
Heather Boyle VanMeter
Keyword(s):  
Design Criteria ◽  
Potable Reuse ◽  
Indirect Potable Reuse
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