Overview of energy management tactics, sustainability and benchmarking applied to membrane treatment facilities...

This paper will present a case-study involving direct lime injection into the Reverse Osmosis permeate for enhanced finished water stability...

Pinellas County Utilities (County) Solid Waste Department receives an average of 3,000 tons per day of municipal solid waste. The bulk of the waste stream is incinerated at their 75 MW waste to energy facility. Cooling towers remove process heat and cool the incinerator off-gas by evaporative cooling. Faced with the combined challenges of a deterio...

This presentation from a preconference workshop in 2014 for Back to Basics on membrane technology discusses low pressure pilot plants and testing. Why to pilot, when to pilot, what to track and how to interpret the results are all given....

This article presents the results at the Lorne Park Water Treatment Plant (WTP) in Mississauga, Ontario, Canada of the performance testing that was conducted and lessons learned for future membrane performance testing. Once the Lorne Park WTP was fully commissioned, the membrane system had to be tested in accordance with the pre-selection documen...

Presents issues aroudn membrane operation, hydraulic data analysis, and factors which impact membrane ageing...

Challenges of blending industrial and municipal wastewaters. Selection process is discussed as is operational performance data....

Since the first wave of adaptation of membranes in drinking water industry in early 1990?s, thousands of membrane plants have been constructed around the world. While membrane manufacturers have been relentlessly advancing the technology and the engineering community continuously improving the design of WTP facilities, severe membrane fouling and e...

This paper will discuss the findings of the ASR feasibility study for the City of Marysville, OH and will outline the approach that the City will take on its new water treatment plant and concentrate management...

The use of membrane technology for the production of drinking water is becoming more commonplace and more cost-effective every year. Many utilities are converting to membrane filtration to help fortify their facilities for current or future regulations. The author has been fortunate to at the front lines of the membrane wave in Ohio - having part...

The main focus of this paper is to address several potential design pitfalls as well as other issues during construction and startup that could affect the performance and operatability of a membrane plant. Detail description of how to select an appropriate membrane permeability during the design and how to properly manage membrane fouling will als...

The Tampa Electric Company (TEC) recently commissioned a $100 million industrial water reuse facility at their Polk Power Station located approximately 40 miles southeast of Tampa, Florida. The project includes a wetlands water intake and pumping station, 15-mile transmission pipeline, advanced reverse osmosis (RO) desalination water treatment syst...

Indirect potable reuse (IPR) projects via groundwater injections in California utilizing full advanced treatment require MF/UF, RO and UV advanced oxidation to meet pathogen, TOC, trace organic and other requirements specified in the most recent groundwater recharge regulations (California Department of Public Health, 2014). The main functions of M...

The use of membrane technology for the production of drinking water is becoming more commonplace and more cost-effective every year. Many utilities are converting to membrane filtration to help fortify their facilities for current or future regulations. The author has been fortunate to at the front lines of the membrane wave in Ohio - having part...

This paper reinforces the vital role membranes continue to play in the water industry by showcasing state-of-the-art RO water treatment (12 mgd) and MBR-UV (7 mgd) water reclamation processes at a common site. Highlights include public engagement and outreach for community support, master planning, alternative delivery with progressive design-build...

The United States constructed the San Luis Unit to provide irrigation in central California with the 1960 San Luis Act. Subsequent court orders mandated that agricultural drainage service be provided to the farms that were supplied irrigation under the San Luis Act. The impacts to waterfowl and other aquatic species that manifested in 1985 at Keste...

This paper summarizes cost effective and proven approaches/methods to get similar pathogen credits when MBR replaces MF/UF in potable reuse trains. The findings of this paper are highly valuable for agencies, regulatory agencies, consultants and individuals who are involving in potable reuse projects and or helping developing a frame work for fort...

This paper focuses on a novel technology, blending the high-treated water quality of a membrane with the simplicity of a granular media filter. This ?MGF? technology is a direct replacement for filter media and underdrains inside the filter box and operates in gravity mode, using the existing hydraulic profile. Unlike immersed membrane filtration, ...

This paper provides detail descriptions of strategies and techniques that are used to maximize RO recovery for a water source with very high scaling potential. RO recovery maximization is critical for downstream Zero Liquid Discharge (ZLD) operation due to extremely high costs associated with ZLD. Planning level of cost estimations for the membrane...

Reducing RO concentrate flows generated from RO based advanced treatment facilities has become a major interest of agencies located in inland areas where surface discharges may not be possible. To meet this objective, many agencies are considering incorporating a high recovery RO concept into the AWTF design. However, depending upon nature of secon...

Turbidity has been a key parameter for monitoring filtered water quality due to its simplicity and reproducibility. Conventional filters integrity has historically been regulated based on the effluent turbidity unlike membranes which has been regulated based on direct integrity testing such as the pressure decay testing. These direct integrity test...

This paper provides details on lessons learned from a membrane condition assessment for 3 major UF membrane facilities owned by Region of Peel, Canada. In addition to typical membrane autopsy analyses with SEM and EDX, this paper details the results from advanced testing with SEI analysis, fiber tensile strength testing comparing new and old fibers...

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