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  • Ozone Generation System
    Source Water Contamination Desalination Water Scarcity Water Reuse Regulations and Legislation Providers YSI a Xylem brand Hach Company Schneider Electric Neptune Technology Group Inc Evoqua Water Technologies Veolia Water Solutions Technologies ABB Measurement Products Aclara Jacobi Carbons Endress Hauser Inc KROHNE Inc Kaeser Compressors Inc Emerson Process Management Rosemount Analytical Degremont Technologies Brentwood Industries View All Providers Product Service Ozone Generation System Source METAWATER USA Inc In order to generate ozone efficiently using the silent discharge technology METAWATER offers highly accurate and ultra narrow discharge gap dielectrics with enhanced cooling system Our Micro Gap dielectrics consisting of Robust and Durable glass lined stainless steel tube permit the cooling of Both the outer inner dielectrics by conditioned cooling water resulting in significant increase in the rate of heat removal thus increasing ozone production performance Contact The Supplier Click Here To Download Ozone Generation System MWX Series Datasheet Features include Glass lined ozone generating dielectric Enhanced cooling system Narrow discharge gap μ GAP PWM converter Need More Information Just Ask Click the button below to directly contact the supplier Use it to Ask a question Request more detailed information or literature Discuss your current project application Request a quote Locate a distributor

    Original URL path: http://www.wateronline.com/doc/ozone-generation-system-0001 (2016-02-14)
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  • Electrocoagulation Technology
    present but generally contaminants are reacted to their most stable state and then removed from the wastewater by physical means Typical solids separation methods like clarification or dissolved air flotation may be employed The solids sludge and filter cake produced by the electrocoagulation treatment of heavy metals can often pass the appropriate USEPA TCLP Toxic Characteristic Leachate Procedure demonstrating just how stable the produced solids really are Benefits of Kaselco Electrocoagulation Excellent Results i e Low Concentrations Treatment levels are typically below the capabilities of conventional chemical precipitation This makes electrocoagulation the method of choice for operations discharging under permits with low limits Peace of Mind Helps in compliance with regulatory obligations Low Capital Costs Standard packages and engineered systems are attractively priced Systems may be designed to retrofit your current wastewater treatment system resulting in substantial savings over current operations Low Operating Costs Operating costs can be dramatically reduced If you no longer pay for reagent chemicals can reduce polymer consumption reduce filter press operations reduce solid sludge generation wouldn t you save a lot of money Simultaneous Treatment A remarkable aspect of KASELCO Electrocoagulation is that several contaminants can be treated simultaneously This eliminates the need to segregate waste streams and treat them separately Most chemicals you use to treat the waste are no longer required The process will accept a wide pH range What does this mean Mix your Chromium VI and other streams together Cyanide does need to be destroyed in advance of EC however down to or below 7 PPM No or Low Chemical Reagent Use In many cases especially the Slam Dunk wastes the use of chemicals for treatment is eliminated Better Metals Removal The metals concentrations in the KASELCO effluent are lower than chemical processes can attain KASELCO EC technology is not bound

    Original URL path: http://www.wateronline.com/doc/electrocoagulation-technology-0001 (2016-02-14)
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  • Oil & Gas Market
    All Petroleum Refining Produced Water Power Generation Water Reuse Utility Management AMR AMI and Metering Asset Management Consumer Outreach Funding Labor Resiliency SCADA Automation Source Water All Source Water Contamination Desalination Water Scarcity Water Reuse Regulations and Legislation Providers YSI a Xylem brand Hach Company Schneider Electric Neptune Technology Group Inc Evoqua Water Technologies Veolia Water Solutions Technologies ABB Measurement Products Aclara Jacobi Carbons Endress Hauser Inc KROHNE Inc Kaeser Compressors Inc Emerson Process Management Rosemount Analytical Degremont Technologies Brentwood Industries View All Providers Product Service Oil Gas Market Source Veolia Water Technologies Water is an essential part of oil gas field production Veolia Water Technologies offers technologies and processes for water treatment that can enhance oil recovery for a variety of oil gas extraction methods Contact The Supplier Click here to learn more Need More Information Just Ask Click the button below to directly contact the supplier Use it to Ask a question Request more detailed information or literature Discuss your current project application Request a quote Locate a distributor in your area Schedule a demo Contact The Supplier Veolia Water Technologies Contact The Supplier Contact Details Company Profile MORE FROM Veolia Water Technologies Contact Details Company Name Veolia

    Original URL path: http://www.wateronline.com/doc/oil-and-gas-market-0001 (2016-02-14)
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  • The Road To Water Resource Recovery
    the significant conclusions and areas of pressing concern that were discussed It was important to bring together an expansive cross section of participants to have a thorough representation of the needs and challenges faced by many levels of utilities a representative from the EPA told Water Online The participants in the workshop reacted extremely positively the group was excited and engaged A testament to the dynamic collaboration is the level of output from the meeting A chief product of the workshop would be the jointly reached vision for the water resource recovery facility WRRF of the future It was agreed that a WRRF should be able to effectively manage more diverse waste streams generate fuel produce water and fertilizer and help communities recover other valuable resources per the report The participants concluded that WRRFs could be widespread in the next 20 years by focusing on four key initiatives making efficient use of resources and resource recovery integrating with other utilities like power plants and agricultural systems engaging and informing communities to expand their understanding of sustainable water resources and deploying smart systems of sensors software and innovative equipment to track performance and inform operations While the report goes into detail on what these initiatives will mean for the WRRF of the future no specific definition of its capabilities was reached There are not currently measurable goals established the EPA representative said The ability to use and recover resources efficiently is a holistic change In addition to generating electricity there are goals to harvest nutrients clean water for reuse and create economic benefits By 2035 the report suggests that a significant number of utilities in the U S can be energy positive Participants did specifically outline the research that needs to take place to facilitate a year 2035 abundant with WRRFs They prioritized 16 areas most ripe for significant progress six in the near term five in the long term and five that will span both periods Near term priorities for research include familiar items like shortcut nitrogen removal and water reuse Long term research priorities include loftier projects like the development of forward osmosis and microbial electrochemical cells Research that the group recommends as both near and long term to begin immediately and continue progress well into the future includes heat recovery and development of algae based systems The report also lists the regulatory technical social and financial barriers that must be overcome These include the health of aquatic ecosystems a need for pioneering facilities the monetizing of wastewater treatment outputs and a surprisingly self effacing critique of the EPA s emphasis on permit compliance over utility innovation As far as steps that can be taken by a given treatment plant to convert itself into the type of WRRF imagined in the workshop well not much is offered by the report beyond the encouragement that change is coming It does however direct readers to a Water Environment Research Foundation report A Guide To Net Zero Solutions of Water Resource Recovery

    Original URL path: http://www.wateronline.com/doc/the-road-to-water-resource-recovery-0001 (2016-02-14)
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  • New Tech Offers Low-Energy Oil And Gas Wastewater Management
    technologies are combined because biological treatment can be effective in organic degradation but is not suitable for salt removal meanwhile membrane based desalination technologies are ineffective in organic removal and require extensive pretreatment to protect system components Furthermore both processes consume high energy for aeration and pumping and previous studies showed 10 to 100 kWh of electricity is needed for the treatment of 1 m3 of water The main value proposition of MCD is that it offers a simpler solution for oil and gas water management because it can simultaneously remove hydrocarbons salts and metals in one reactor A Simpler And Cheaper Solution One approach to accomplishing sustainable produced water management is to develop technologies that remove both organic carbon and TDS without consuming external energy or that potentially gain net energy In this context recently developed microbial capacitive deionization MCD may provide a market niche MCD is based on the fundamental work derived from a platform called microbial electrochemical technology MET MCD employs microorganisms to break down organic or inorganic sources of electrons in the wastewater and the electrons i e current flow through an external circuit to specially designed membrane assemblies in the middle chamber and finally combine with protons in the cathode chamber to generate water The current can be directly harvested as electricity or used for chemical production in the cathode chamber and the electrical potential generated between the anode and cathode drives the removal of salts heavy metals and charged organic matter for water purification and desalination Electrical energy can be generated during ion discharge from the electrodes similar to a rechargeable battery The MCD process has been tested at lab and pilot scale and a mobile trailer system with a capacity of 5 gallons per minute is being developed for field testing Using actual produced water obtained from Denver Julesburg Basin which has chemical oxygen demand COD ranging from 1 100 to 2 600 mg L and TDS ranging from 16 000 to 28 000 mg L the lab systems were able to remove 10 200 to 66 240 mg TDS L day and 4 000 mg COD L day In addition to water treatment the system generates 89 to 131 W m3 of electricity which is harvested and stored for powering online sensors The figure below shows the pilot system developed by the University of Colorado at Boulder which is stackable and can be mounted on a truck The inset shows the water before and after treatment Preliminary techno economic analysis shows the MCD system is inexpensive to operate 0 10 to 0 60 barrel depending on treatment need and credited with low energy consumption moreover extra electricity and water are produced due to the use of sodium percarbonate as an electron acceptor Clear results The MCD pilot shown with influent effluent comparison Electrical energy can be generated during ion discharge from the electrodes similar to a rechargeable battery The main value proposition of MCD is that it offers a simpler solution for

    Original URL path: http://www.wateronline.com/doc/new-tech-offers-low-energy-oil-and-gas-wastewater-management-0001 (2016-02-14)
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  • From Poop To Power
    least developed further now Rittmann For decades the conventional thinking was that anaerobic treatment processes are not efficient enough to treat domestic wastewater due to its low organic concentration and low temperature Also conventional aerobic treatment e g activated sludge has served us well as a means of treatment only Only in recent years have we begun to question the assumption that the only goal is treatment Since conventional processes did their assigned task well and energy costs were relatively low most of the time we didn t have the impetus to do anything different In the past 10 years or so a pull to reduce energy and to limit the greenhouse gas GHG costs of treatment has changed our perspective Combined with new materials membranes and electrodes we now have new tools to push development and to complement the pull of the desire to reduce energy and GHG impacts The same reasoning exists for nutrient recovery no pull until recently and some new materials to give it a push Q What are the environmental benefits of these technologies Rittmann By shifting from energy negative to energy positive the anaerobic technologies seriously reduce the GHG emissions of treatment Recovering nutrients prevents their discharge into surface waters and thus minimizes the acceleration of aging and dead zones in our lakes reservoirs and oceans Q What are the economic benefits of these technologies Rittmann The anaerobic processes can be used to generate energy not consume it Electricity use is the largest non personnel expense in treatment and shifting it from a cost to a profit center has a huge economic benefit to a municipality In addition the anaerobic processes generate much less sludge that has to be treated and hauled off to the landfill Currently sludge treatment and disposal constitute the second largest operating expense Recovering nitrogen and phosphorus also can provide an additional income stream if the quality of the products is good enough to sell At a minimum the sale of nitrogen and phosphorus products should offset the costs of removing them Q What is the next step needed to convert wastewater treatment plants into resource generators Rittmann On the technology side various technologies are at different stages An anaerobic membrane bioreactor is pretty well advanced and in large scale testing now It should be ready to go full scale soon The phosphorus and nitrogen recovery processes are commercially available for other applications but need to be optimized and tested for nitrogen and phosphorus recovery from anaerobically treated effluent The microbial electrochemical cells are at the pilot stage now and need significant development The most important steps are less technical and more economic and policy oriented First municipalities need to realize that they can dramatically reduce their costs of treatment and make their operations much more sustainable through these methods They have to get out of the business as usual mindset Second society has to embrace using resources that are recovered from used water They have to see that the

    Original URL path: http://www.wateronline.com/doc/from-poop-to-power-0001 (2016-02-14)
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  • Greater Chicago Historic Infrastructure Projects Enhance Windy City Water Quality
    Calumet River The reclaimed water has more than 99 percent of the impurities removed and is deposited into the Little Calumet River and CAWS without any adverse environmental impact The treated water is often cleaner than the water of the rivers and streams The entire process from the time water reaches the treatment plant to the time it is cleaned and reclaimed takes less than 12 hours In addition to directly benefiting the water environment the disinfection project impacted the local economy by putting hundreds of tradespeople to work The above images show the massive scale of the Thornton Reservoir Disinfection also clears the way for direct reuse of the water by industry MWRD has entered into an agreement with Illinois American Water and together they are pursuing the local industrial use of this disinfected water Other environmental benefits of reusing water include saving the energy used to treat the water and conserving Chicago s tap water which is sourced from Lake Michigan Disinfection marks another significant date in the history of the Metropolitan Water Reclamation District of Greater Chicago dating back to 1889 when the District was first tasked with addressing the issue of contamination in Lake Michigan said MWRD President Mariyana Spyropoulos Since then we have constructed more than 60 miles of canals reversed the flow of the Chicago River and built seven water reclamation plants Creating a disinfection facility at Calumet is another chapter in our history of water treatment and one more upgrade we have made to improve the region s water quality Two Forks Merge Chlorination dechlorination is not the only resource recovery initiative the MWRD is pursuing The MWRD is also constructing a UV radiation system to disinfect water entering the CAWS at the O Brien WRP By using two distinct technologies the MWRD will saturate the CAWS with disinfected water that enters the waterways from the south through Calumet WRP and the north at O Brien WRP The UV disinfection system will become the largest wastewater UV installation in the world O Brien WRP which treats 530 MGD will have 1 152 TrojanUV Solo Lamps installed The TrojanUVSigna system uses 1 000 watt low pressure high output LPHO Solo Lamps The low pressure lamp means that fewer lamps are needed to accomplish disinfection versus medium pressure MP lamps Fewer lamps require less tank volume which translates into a lower capital cost than MP lamps The low wattage of operation translates into longer lamp life and lower power consumption The total power requirement for the traditional MP UV lamps to disinfect a 530 MGD effluent flow at the O Brien WRP is 5 068 kW versus 1 191 kW for the Solo Lamps The significant difference in power means a lower annual operating cost for the MWRD system The smaller number of lamps for the TrojanUVSigna system than the MP system also translates to reduced maintenance costs due to fewer lamps needing to be cleaned and replaced The inclined configuration of the Signa system

    Original URL path: http://www.wateronline.com/doc/greater-chicago-historic-infrastructure-projects-enhance-windy-city-water-quality-0001 (2016-02-14)
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  • Is Pasteurization The Key To Water Reuse
    reduce pathogens and prevent spoilage Though the low tech method has been around for over 150 years a novel application may be on the horizon for the water industry Andrew Salveson PE and water reuse chief technologist at Carollo Engineers explored pasteurization as a treatment method for recycling water in his WEFTEC presentation of Getting Hot The Expansion Of Pasteurization For Potable And Non Potable Reuse Salveson s presentation based on a project he s conducting along with 15 other researchers built on a growing industry reputation he has as an authority on reuse Indeed this project comes hot on the heels of another one he s conducting for the Water Research Foundation on the blending requirements for direct potable reuse DPR water known somewhat cryptically as project 4536 Regarding this latest project Salveson pointed out that the researchers are not utilizing your great great grandpa s pasteurization process He said that he was approached in 2005 by the inventor of a new process that uses waste heat for disinfection Heating water is costly stopping progress of this concept in many areas said Salveson as an explanation for why pasteurization hasn t already taken hold in water treatment This new work uses heat exchangers to essentially keep the heat in the loop within the reactor with cold water in and cold water out and heat in the middle This makes pasteurization 95 percent more cost and energy efficient Getting Hot summarizes tests of this method at four locations since 2006 the ultimate goal being approval under Title 22 of the California Department of Public Health s Regulations Related to Recycled Water The first pasteurization tests were done in Santa Rosa CA in 2006 and 2007 The work resulted in regulatory approval for pasteurization at a target temperature of 176 4 F for 7 7 seconds A full scale 500 000 GPD test was performed between 2012 and 2014 in Ventura CA Per a report on the project that work demonstrated robust performance of the pasteurization system which led to Title 22 clearance for pasteurization at 162 F Towards the end of the Ventura testing in 2014 a full scale pasteurization system came online in Graton CA and its disinfection results were roughly the same as its predecessor Regulatory permission of 162 at a contact time of 10 seconds was achieved Finally in 2014 and 2015 the most complete analysis of pasteurization was begun in Melbourne Australia as demonstration scale testing It has confirmed robust disinfection of a range of bacteria virus and protozoa at different temperatures and contact times Using the same unit employed in Ventura researchers successfully treated unfiltered secondary effluent for the first time They are hopeful that the results will allow pasteurization to replace several combined disinfection methods in Melbourne s state of Victoria When asked to highlight the most significant successes demonstrated by this research Salveson notes three the fact that pasteurization has resulted in the most robust treatment of pathogens for any disinfectant that there

    Original URL path: http://www.wateronline.com/doc/is-pasteurization-the-key-to-water-reuse-0001 (2016-02-14)
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