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  • Hydro International Expands Industrial And Municipal Water Treatment Options With New MicroScreen Technology
    of water treatment technologies to incorporate the M2R MicroScreen rotating belt screening system Delivering improved biological oxidation efficiency at reduced cost and footprint the Hydro MicroScreen changes the character of waste and industrial process water at the initial stage of the treatment train and enables municipal and industrial facilities to realise savings through reduced energy and chemical use reduced effluent surcharges and a removed solids output that can be used to offset costs The technology continuously filters settleable material out of water at a very fine level without clogging which makes it suitable for a variety of municipal and industrial water treatment applications Municipal processes include primary wastewater treatment primary sludge dewatering and upstream protection of technologies such as membranes sequencing batch reactors dissolved air floatation and moving bed bio reactors industry segments that will benefit from the Hydro MicroScreen s reduced footprint chemical free solids removal include food processing beef poultry vegetables fisheries dairies breweries and wineries tanneries and the pulp and paper industries This expansion of Hydro International s water treatment product range which includes products such as HeadCell and Hydro Sludge Screen augments the company s existing capabilities and enables it to provide customers with additional solutions to their process and wastewater treatment challenges Michael Jennings Chief Executive of Hydro International said This acquisition extends our water treatment capabilities and allows us to help our customers in new ways Hydro International is renowned for challenging convention and adding the Hydro MicroScreen to our already impressive range of water treatment products will enable us to help industrial and municipal sites to manage their water quality in ways that they currently may not even realise are possible For more information visit hydro int com MicroScreen About Hydro International Hydro International is a global leader in sustainable technologies for the

    Original URL path: http://www.wateronline.com/doc/hydro-international-expands-industrial-options-new-microscreen-technology-0001 (2016-02-14)
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  • Landia Chopper Pumps Are A Safe Bet For FCPC Renewable Generation LLC At Biodigester Plant
    18 5M biogas project which supports the FCPC s goal of using renewable carbon neutral resources to become energy self sufficient Located adjacent to the FCPC s Potawatomi Hotel and Casino in the Menomonee Valley the plant treats up to 120 000 gallons per day of high strength wastes producing up to 2MW of electricity enough to power 1 500 homes The Landia chopper pumps work 24 7 to handle a wide variety of solid and liquid waste from numerous local food and beverage manufacturers Generating 7 7 million BTU British Thermal Unit per hour of heat excess amounts are also utilised to provide hot water for the two anaerobic digesters as well as the hotel Christopher Winkowski Plant Manager for Natural Systems Utilities said As part of our ongoing commitment to focus on sustainable model opportunities we very much require top quality long lasting equipment Landia s chopper pumps are proving extremely reliable and blockage free The pumps are capable of handling all types of food waste which more often than not has aggressively low pH levels which corrode pumps that aren t up to the job Forest County Potawatomi Community was awarded a 2 5M grant from the U S Department of Energy for this biogas plant plus solar installation at the tribe s administration building in Milwaukee and renewable energy projects on the tribe s reservation in northern Wisconsin All feedstock handling at the Milwaukee plant takes place in an enclosed negative air pressure environment to stop odors being released Silencers on the two internal combustion engines have also been included to reduce noise Engineered by Symbiont of Milwaukee and constructed by Miron Construction of Neenah Wisconsin the Veolia Biothane anaerobic bioreactors process food waste in tanks devoid of oxygen Bacteria consume the waste and produce methane

    Original URL path: http://www.wateronline.com/doc/landia-chopper-pumps-are-renewable-generation-llc-biodigester-plant-0001 (2016-02-14)
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  • Water Environment Research Article Examines Odors In San Francisco Sewers
    All Providers News November 18 2015 Water Environment Research Article Examines Odors In San Francisco Sewers The open access article for the November 2015 issue of Water Environment Research WER examines the measurement of odor producing biochemical reactions in San Francisco sewers through modeling sulfides pH and hydrogen sulfide gas The resulting data led to the development of a sewer process model that helps predict and mitigate odor issues in collection systems Through the evaluation of biochemical reactions occurring in wastewater collection systems Vollertsen et al calibrated a sewer process model using data from the San Francisco Bay area said WER Editor in Chief Tim Ellis The model was relatively accurate in predicting wastewater and off gas hydrogen sulfide concentrations as well as pH values throughout the collection system Selected WER articles such as this one are available free to the public on a monthly basis through an open access program Click here to download the open access article Modeling Sulfides pH and Hydrogen Sulfide Gas in the Sewers of San Francisco by Jes Vollertsen Nohemy Revilla Thorkild Hvitved Jacobsen and Asbjørn Haaning Nielsen Published by the Water Environment Federation since 1928 WER is a popular professional journal that features peer reviewed research papers and research notes as well as state of the art and critical reviews on original fundamental and applied research in all scientific and technical areas related to water quality pollution control and management Originally known as the Sewage Works Journal WER is available in both print and online formats and receives approximately 400 new research submissions each year About WEF The Water Environment Federation WEF is a not for profit technical and educational organization of 34 000 individual members and 75 affiliated Member Associations representing water quality professionals around the world Since 1928 WEF and its

    Original URL path: http://www.wateronline.com/doc/water-environment-examines-odors-in-san-francisco-sewers-0001 (2016-02-14)
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  • Small Pumps Make A BIG Difference In Little Rock
    designed to notify us and integrate with our Preventative Maintenance program For example Oil levels are checked once a month on our Submersible Pumps and we also inspect the Impellers once every year In the meantime we conduct visual checks and we have a good ear too and can detect when something doesn t sound quite right with the equipment This proactive mode which also encompasses 28 Pump Stations and 3 Treatment Facilities saves on potentially drastic repair bills and has virtually eliminated downtime More importantly it ensures Little Rock Wastewater achieves its stringent Discharge Permit Serving a population of 183 000 the Fourche Creek Treatment Facility FCTF 43 MGD the Adams Field Treatment Facility AFTF 72 MGD and the Little Maumelle Treatment Facility LMTF 5 14 MGD are all closely monitored by State and Federal entities They are always welcome at every visit Joe stated because he and his team proudly believe a key part of their mission is simply to do the right thing for the City of Little Rock and its residents Although required to reduce pollutant loads by 85 percent FCTF consistently achieves 90 95 percent removal through its physical and biological processes An innovative secondary treatment facility with a Step Feed activated sludge process FCTF receives wastewater from southwest Little Rock via pressure lines from the College Station Arch Street Pump Stations FCTF also receives solids through a 5 mile Force Main from AFTF which is a complete mix activated sludge facility Here flow to the activated sludge secondary process goes through six rectangular Aeration Tanks where a biological microorganism population utilizes the incoming dissolved organic material in the wastewater as food The biological organisms settle out in the secondary final Clarifiers and are returned to the activated sludge Aeration Tanks to maintain a viable microorganism population Sludge from both AFTF and FCTF are combined and then thickened at FCTC prior to being introduces to one of four 1 2 million gallon primary Anaerobic Digestion Tanks Held for approximately 30 days at a constant 95 F and completely devoid of any free oxygen these tanks use naturally occurring bacterial to consume 55 of the organic solids in the thickened sludge to produce water carbon dioxide sulfide and most importantly Methane The Methane gas is collected and piped to the Generator building where it is used as an alternative fuel source to provide up to 100 of the facility s power saving FCTF three quarters of a million dollars annually over 2 000 per day Approximately 1150 kW of power is produced with around 850 kW for facility load and approximately 300 kW of that put back on the grid Those Landia Pumps Joe and his team first chuckled about were introduced eight years ago to pump the Anaerobic Digester solids They replaced a different manufacturers Screw Impeller Pumps which had been failing mechanically On the pedestals where the previous pumps sat the Landia Model MPTK close coupled Chopper Pumps take up only a third of

    Original URL path: http://www.wateronline.com/doc/small-pumps-make-a-big-difference-in-little-rock-0001 (2016-02-14)
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  • Wastewater Collection Systems News Documents on Water Online
    20 JWC Environmental Enhances Commitment To Industry With New Board Appointment 2 4 2016 JWC Environmental is pleased to announce the addition of Anselmo Teixeira to the JWC board of directors Major Micro Hydro Cost Savings With New Ham Baker SPP Partnership 1 20 2016 A new worldwide Micro Hydro partnership between Ham Baker Group and SPP Pumps promises to bring affordable effective energy generation for water treatment inlet works and service reservoirs typically 50m head flow rate 2500m3 Reliable Solutions For Receiving Septage 1 11 2016 Different circumstances require different solutions This holds true for septage receiving Huber Technology makes available a portfolio of designs to accommodate the full range of possibilities such as grit grease and rags The Ro3 design is an ideal setup for standard wastes When unusual or debris laden waste is part of the challenge the RoFAS screen is perfectly suited Hydro International Expands Industrial And Municipal Water Treatment Options With New MicroScreen Technology 12 24 2015 Hilsboro Oregon Hydro International has acquired the assets of M2 Renewables Inc expanding its range of water treatment technologies to incorporate the M2R MicroScreen rotating belt screening system Landia Chopper Pumps Are A Safe Bet For FCPC Renewable Generation LLC At Biodigester Plant 11 23 2015 Ten Landia Chopper Pumps in Milwaukee are playing a vital role in the success of the FCPC Renewable Generation LLC s FCPC RG LLC Biodigester Plant Greenfire Management Servics LLC managed the development of the facility for FCPC RG LLC which is operated under contract by Natural Systems Utilities NSU Water Environment Research Article Examines Odors In San Francisco Sewers 11 18 2015 The open access article for the November 2015 issue of Water Environment Research WER examines the measurement of odor producing biochemical reactions in San Francisco sewers through modeling sulfides

    Original URL path: http://www.wateronline.com/hub/bucket/wastewater-collection-systems-news (2016-02-14)
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  • Assessing PPCPs How To Handle The Micropollutants That Pose A Major Threat
    It is unclear how the unintended exposure to low concentrations of multiple chemicals may affect an organism or an individual Tracking The Problem PPCPs enter the environment from several different sources Human sources are the predominant ones releasing PPCPs after they have been used either as they are washed off the body or excreted Additionally PPCPs are often disposed down the drain or in the trash and these enter the environment either through wastewater treatment systems or landfills Other sources include livestock agriculture pets and aquaculture Humans typically excrete 50 to 90 percent of the active ingredients in ingested drugs either as unmetabolized pharmaceuticals or as metabolites When these excreted chemicals leave the body they typically enter a municipal wastewater treatment facility an on site sewage system or a reclaimed water treatment facility Treatment processes vary in their treatment efficiency for PPCPs Typically wastewater from the treatment system is discharged into the environment Washington Department of Ecology s Brandi Lubliner collects a sample at a wastewater treatment plant Consumers dispose of an estimated 25 to 33 percent of pharmaceuticals sold either to a landfill or wastewater treatment plant Ultimately these disposed PPCPs enter a municipal wastewater treatment facility an on site sewage system or a reclaimed water treatment facility Unused or expired PPCPs thrown away in the trashcan and disposed in a landfill can be mobilized in the environment via landfill leachate The fate of PPCPs in the environment is complex for a number of reasons First there are thousands of chemicals used in the manufacture of a wide variety of PPCPs Not all PPCPs are similar chemically and the different types of chemicals react differently to different treatment processes The individual chemical structure dictates whether PPCPs will biodegrade volatilize degrade into metabolites or concentrate and persist in the environment The results of this study indicate that PPCPs are routinely found in municipal wastewater PPCP removal varies between wastewater treatment processes and specific chemicals and advanced nutrient reduction and tertiary filtration may provide additional PPCP removal Treating The Problem The treatability of PPCPs depends upon the physicochemical properties of each compound of interest and the specific set of treatment processes Some treatment processes efficiently remove some chemicals but are ineffective at treating others Some treatment processes merely remove the chemical from one media and transfer it to another media without destroying it For example nonylphenol is removed from water through settling but in the process it is partitioned into the sludge Once land applied it remains in the environment available for transport to groundwater or surface waters Typical treatment processes include adsorption filtration volatilization photodegradation biodegradation chemical alteration and plant or animal utilization In summary no single treatment process effectively removes 100 percent of PPCPs Some treatment processes reduce some pharmaceuticals to very low levels while other pharmaceuticals remain resilient In 2008 the Washington Department of Ecology and the U S EPA conducted a study to characterize PPCPs at five municipal wastewater treatment plants in the Pacific Northwest The goal

    Original URL path: http://www.wateronline.com/doc/assessing-ppcps-how-to-handle-the-micropollutants-that-pose-a-major-threat-0001 (2016-02-14)
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  • Innovation In Applying Existing Technology Solutions
    Using Existing Technologies When problems coalesce so rapidly an immediate response can be an extreme sense of urgency to develop new innovative technologies Millions if not billions of dollars are invested in the quest to find a silver bullet But while innovation and the development of new technologies are critical for long term problem solving this process is time and resource intensive It requires uncompromised vetting multiple rounds of funding pilots testing oftentimes numerous iterations and further testing to demonstrate commercially viable solutions In the process the obvious is often totally ignored the use of existing technologies that are economically efficient and commercially proven and innovation in how they can be deployed No Silver Bullet Part of the dilemma is that companies have sometimes tried and been disappointed with the results they get from technology solutions particularly when they are oversold the silver bullet For example hydrodynamic cavitation and electrocoagulation EC Taking a slightly different approach a range of proven technologies such as these can be incorporated into a single system allowing each technology to attack the specific chemistry or process it has been successfully proven to mitigate Innovating the approach and combining the technologies can create an immediate efficient cost effective solution to a whole list of problems Examples From Oil And Gas The Scottish company Global Advantech manufactures solutions for decontamination effluent treatment waste valorisation and hydrocarbon crude oil recovery Water treatment systems using existing technologies such as electrocoagulation are applied within a systems engineered solution to a variety of problems involved in cleaning industrial wastewater in the oil and gas industry As modular scalable ISO container systems Global Advantech solutions can be designed as mobile units fitting on tractor trailers for transportation between well sites or as a localised water treatment plant The EC based systems clean produced water drilling slops and hydraulic fracturing flowback water Applications For EC Flexibility In Applications By Combining Existing Technologies Combining technologies within a system engineered solution also provides flexibility in addressing a range of specific chemistries underlying industrial operations as well as integrating related issues For example an aqueous drill cuttings cleaning system to extract hydrocarbons can combine existing hydrodynamic cavitation technology to separate oil from solids then add EC to treat the wastewater stream This expands the application for EC to include cleaning wastewater such as oil tanker ballast and tank clean down wastewater refinery and petrochemical plant effluent tank farm and downstream contaminated surface water and tank bottom sludges In contrast to current thermal de absorption systems existing hydrodynamic cavitation technology presents a more efficient and cost effective option Capital costs are approximately 25 percent lower than thermal processing and operating costs are up to 20 percent lower because of lower energy consumption Oil separation occurs to recover the majority of the released hydrocarbons and electrocoagulation can be used to continuously treat and recycle all process water to remove dispersed emulsified hydrocarbons larger organic molecules and polymers suspended particulates heavy metals alkaline earths Other existing technologies can also

    Original URL path: http://www.wateronline.com/doc/innovation-in-applying-existing-technology-solutions-0001 (2016-02-14)
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  • Nontraditional Nutrient Reduction Techniques
    Inc the contractors adhered to the schedule allowing the new commissioning procedures to occur simultaneously with the decommissioning of the existing facilities Throughout the construction process some unforeseen challenges surfaced During excavation the team discovered the underground presence of several unmarked and abandoned vaults and structures These items were not shown on the as built drawings The contractor worked with RETTEW to modify the construction approach completing the base for the oxidation ditch in three concrete foundation pours while the structures were simultaneously removed Because of the close proximity to a nearby creek groundwater also became an issue during excavations and construction The contractor brought in large pumps to dewater the excavations for the oxidation ditch and kept the project on schedule and within the original cost estimates The original estimate of construction costs for the work was 10 4 million However approximate total cost after bids were returned was 8 6 million With the change orders and change in construction approach due to the unforeseen circumstances the final costs were approximately 9 6 million Plant improvements included new pumps for return sludge and waste activated sludge The Process The newly installed BRN processes enabled the facility to meet PADEP nutrient discharge requirements BNR typically refers to a system treating wastewater to an effluent level of total nitrogen 8 to 10 mg L and total phosphorus 1 to 3 mg L In a BNR wastewater treatment facility the microorganisms used to treat the wastewater are intentionally stressed resulting in several nutrient important results the conversion of ammonia to nitrates and nitrites the release of nitrogen gas and the uptake of phosphorus To ensure these biological conversions occur the microorganisms environment must be controlled keeping the pH balance alkalinity carbon and sludge age at correct levels By controlling the microorganisms their environment and the phases of the installed oxidation ditches MAWSA completes biological nitrogen removal through nitrification denitrification as well as some biological phosphorus removal The Next Step ENR is a step further than BNR resulting in effluent levels as low as total nitrogen of 3 mg L and total phosphorus of 0 3 mg L or less Traditionally wastewater treatment facilities obtain ENR with the addition of filters or chemicals At MAWSA however the facility s staff has been able to reach ENR level discharges through optimizing its oxidation ditches The authority s staff wanted to optimize the facility for its primary discharge requirements so they tested and finetuned processes to reach lower effluent discharge levels The goals were both to improve effluent discharge levels and find operating and cost efficiencies for the facility something that was possible because of the facility s unusual quality influent MAWSA s facility does not feature typical quality influent Rather its influent has low biochemical oxygen demand BOD concentrations featuring monthly averages of 160 mg L with lows as little as 50 mg L These concentrations result in a low food to microorganism ratio After careful testing of the process MAWSA determined that by

    Original URL path: http://www.wateronline.com/doc/nontraditional-nutrient-reduction-techniques-0001 (2016-02-14)
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