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The current wastewater treatment facility is designed for the year 2020 with an expected population equivalent of 44,700 P.E. Design Average Flow (DAF) is 5.0 MGD, and the plant is capable of treating 12.5 MGD (Peak Flow) through the main plant with an additional 3.5 MGD diverted to excess flow treatment. Excess Flow will receive grit removal and primary treatment, chlorination and dechlorination prior to combining with the completely treated effluent.
Wastewater enters the plant through 3 interceptors to the raw wet well and passes through a mechanically cleaned fine bar screen. Screenings are washed and compacted in the “screw/pactor, bagged and placed inside a dumpster for disposal. The wastewater is then pumped through a metered 24” Parshall Flume by 2 submersible (wet well) and 3 vertical centrifugal pumps (dry well) each capable of pumping up to 2,800 GPM for a peak flow of 16 MGD.
The raw wastewater flows through 2 aerated grit chambers each (20’L ● 20’W ●12’D) with a capacity of 72,000 gallons and retention time of 20.7 min at DAF (8.3 min at Peak Flow). After the grit chambers, the flow splits into 4 rectangular primary clarifiers (100’L ● 25’W ● 8.25’D) with a surface settling rate of 500 GPD/SF and a weir overflow rate of 15,000 GPD/SF at 5 MGD.
The primary effluent flows into 2 aeration plants for biological treatment. Total aeration tank volume is 1.984 MG. Wastewater flows in a serpentine pattern through each plant with a total detention time of approximately 8.2 hours at DAF. There are 5 blowers, each capable of providing 1,500 CFM of fine bubble diffused air to this stage. The SCADA system adjusts dissolved oxygen levels with actuated air valves to maintain optimum mixing and oxygen transfer.
The mixed liquor flows into a common header and is divided equally to 3 secondary clarifiers each 95’ in diameter. Each clarifier provides 235 GPD/SF surface settling rate at DAF. Combined the clarifiers provide 587 GPD/SF at wet weather peak flow. Settled solids (RAS) from the secondary clarifiers are returned to the aeration tanks by 3 submersible centrifugal pumps with a VFD controlled rate of 15% to 100% DAF. The excess solids are wasted into the WAS holding tanks then pumped to the #1 centrifuge for final thickening and pumping to the primary digester.
Raw [primary] sludge from the primary clarifiers is pumped directly to the primary digester. Under “complete mix” anaerobic digestion conditions the primary mesophilic digester is maintained at 98 ºF for 47.8 Days MCRT that achieves 58% reduction in volatile solids. Primary digester sludge is periodically transferred to the secondary digester for storage and thickening. Supernatant is removed from the secondary and is returned to the headworks. Both digesters are sized at 70’ in diameter and each can hold 750,000 gallons of sludge.
Stabilized secondary digester sludge is dewatered in one of two twin 21” centrifuges. The dewatered final Biosolids are conveyed to an enclosed (180’L ● 80’W ● 24’H) storage facility for approximately 2,500 cubic yards of material. The building is designed with enough overhead clearance for routine stacking activities and loading of large 20-yard semi trailers inside during land application periods. This significantly reduces drag out of material onto plant roadways. The Biosolids are beneficially reused through the City’s Land Application Program and local farmers. Just last week we hauled out this years Biosolids (2660 cu.yds.).
Effluent from the secondary clarifiers enters the UV structure and is exposed to Ultraviolet light that disinfects the effluent before discharge to the Fox River.
The Grid Friendly Appliance Controller chip can temporarily shift how smart appliances use power to soften the blow for utilities during times of peak demand on the grid. Battelle has licensed the GFAC to company Encryptor of Plano, TX.
For more information, visit www.pnl.gov/news
Terms of Use: Our images are freely and publicly available for use with the credit line, "Courtesy of Pacific Northwest National Laboratory." Please use provided caption information for use in appropriate context.
PANTECH SOLUTIONS Provides Project Guidance for B.E,B.Tech,M.E,M.Tech,MCA,B.Sc & M.Sc Electronic Science and for all Electrical Students
We offer Project Solutions for
Electronics & Communication Engineering (ECE )
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M.Sc Electronics and further more …….
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EMBEDDED – RF , Bluetooth , Zigbee,GSM,GPS,RFid,GPRS,Ethernet,I2C,CAN,Robotics,Finger Print, Bio Medical , Speech Rocognition and more
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PANTECH SOLUTIONS Provides Project Guidance for B.E,B.Tech,M.E,M.Tech,MCA,B.Sc & M.Sc Electronic Science and for all Electrical Students
We offer Project Solutions for
Electronics & Communication Engineering (ECE )
Computer Science Engineering ( CSE)
Electrical & Electronics Engineering ( EEE)
Electrical & Instrumentation Engineering ( E & I )
M.Sc Electronics and further more …….
PANTECH POTENCY :
We Offer Project Assistance in
Digital Signal & Image Processing
Real Time Embedded System Design
ASIC Designs – FPA | CPLD Implementation
JAVA & Networking
Network Simulator – NS2
Dot Net,C # & Web Application
Power Electronics & Drives
Modern Power Systems
Control & Automation
EMBEDDED – RF , Bluetooth , Zigbee,GSM,GPS,RFid,GPRS,Ethernet,I2C,CAN,Robotics,Finger Print, Bio Medical , Speech Rocognition and more
VLSI & DSP – Low Power VLSI Design,Digital Image Processing,Neural Network , Filter Design
ELECTRICAL – SCADA , PLC , Automation,Coverter,Drives & Control,Power Electronics,Power Systems,,Imverter
IT – Image Processing ,Mobile Computing ,Web Applications,Data Mining ,Networking.
For Further Info ,
Call us @ 98409 74407 / 96000 66689 Email:sales@pantechmail.com / sales@pantechsolutions,net
Or Visit us @ www.pantechprojects.com , www.pantechsolutions.net
Our Branches @
Chennai - 044 42606450 | 4260 6470 | 42606480 | 96000 66689
Madurai – 0452 4375382 | 99406 85843 | 99406 58158
Coimbatore – 0422 – 4506470 | 98409 74409
Hyderabad – 040 40077960 | 99890 27053
Kochi – 0484 2536270 |98953 93393
Pune – 020 32926450 | 9561065750
15 May 2010. Harvard, CA (Mojave Desert).
Telegraph poles with multiple "code lines" were once a common feature alongside American railroad tracks. They are easily distinguishable from ordinary power or telephone lines by their multitude of cables, often occupying several crossarms. The wires typically include a shared power bus plus separate control leads for the signals along the route, with a variety of signal encoding schemes used depending on the particular technology used. Dedicated railroad code lines like those in this photo are among the earliest large-scale SCADA network technologies still in use today, although they are being supplanted by more modern signaling and communication systems that do not require such extensive cabling.
This example is on the Union Pacific Railroad in the Mojave Desert on the line between Barstow and Las Vegas (near milepost 175, in the largely abandoned town of Harvard, CA). The foreground pylon, with a more elaborate "portal" construction than the usual T-shaped single pole designs visible down the line, has a tap on the power bus (on the upper crossarm) to supply voltage for a track circuit (at right) that controls a nearby crossing gate.
Nikkor 24mm/3.5 PC-E lens (@ f/9), Nikon D3x camera (@ ISO 100).
No emulsions were harmed in the making of this image.
1614
Der neue Simatic Panel PC 577B von Siemens A&D erbringt mit dem leistungsstarken 1,86-Gigahertz-Intel-Mobile-Prozessor eine hohe Rechenleistung bei Industrieanwendungen. Das nur 14 Zentimeter tiefe Gerät wird standardmäßig mit einem Hauptspeicher von 512 Megabyte ausgeliefert.
Efficient panel PC for standard industry applications
With its powerful 1.86 gigahertz Intel Mobile processor, the new PC 577B Simatic Panel from Siemens A&D provides outstanding computing power for industrial applications. The panel, which is only 14 centimeters deep, has a main memory of 512 megabytes.
This photo is of Lakshadweep Island in India. OPS India has been awarded a prestigous contract with BHEL, to supply, commission and install proprietary technology inverters with MPPT and SCADA.
The solar PV net kWp of the four systems is 1.1 MWp.
For Lakshadweep Project info visit our company Blog here
Highly automated treatment plants are controlled and monitored using a computerized SCADA (Supervisory Control and Data Acquisition) system. SCADA systems receive signals from the processes at the facility, sending these signals back to the Process Control center. SCADA control rooms can sometimes look like a NASA control center.
Pictured: Brockton, Mass. Read more at www.veoliawaterna.com/media/case-studies/brockton-massach...
Left to right CEO Kirk Trede, Agriculture Secretary Tom Vilsack, Division Manager of Engineering Dennis Hill, SCADA Supervisor Tim Iossi during Agriculture Secretary Tom Vilsack tour of the Eastern Iowa Light and Power Cooperative in Wilton, IA on Friday, Jul, 17, 2015. Secretary Vilsack announced a $44 million U.S. Department of Agriculture (USDA) electric loan that will help improve nearly 350 miles of electric distribution lines throughout eastern Iowa. USDA photo by Darin Leach.
Comparing to older technology where Fuller’s Earth is used only once and then must be disposed together with oil and harmful contaminants, GlobeCore CMM-R plants utilize the principle of sorbent (Fullers Earth) reactivation and have a number of unique features:
› Extend transformers lifecycle by 25 to 30 years
› Regenerate the oil on energized transformer
› Remove sludge from cellulose insulation
› Reactivate the sorbent (Fuller’s Earth) allowing the sorbent to stay in the plant for 2-3 years before replacement is needed.
› Oil regeneration and Fuller’s Earth reactivation is fully automatic.
› Disposal of sorbent is environmentally friendly and safe as Fuller’s Earth is free from oil and contaminants.
GlobeCore CMM-R Transformer Oil Regeneration Plants are designed to improve dielectric strength and chemical composition of insulating oils. It is important to maintain oil properties within the recommended standards to prevent weakening of cellulose insulation by products of oil degradation. Since the life of the transformer is determent by the state of cellulose insulation, intervention is necessary to prevent sludge from destructing chemical bonds which hold the cellulose together. Oil Regeneration allows to remove sludge (which is formed as a result of oil degradation (aging) and consists mainly of acids, aldehydes and peroxides), improve acidity level and decrease oil’s ability to dissolve gases.
The main principle of Oil Regeneration is to pump the oil through the sorbent (Fuller’s Earth). During this process the oil undergoes “molecular filtration” in the micro porous sorbent. By-products of oil ageing (burnt deposits,hydro-peroxides, ketones, carboxylic acids, aldehydes, phenols, etc) are removed and stay in the Fuller’s Earth granules. Fuller’s Earth is naturally occurring clay that possesses no environmental danger and can be disposed of as a construction waste after its absorbing properties have been exhausted.
Some regeneration plants are designed with multiple sorbent filter columns. Where this is the case columns can be either in filtration mode or sorbent reactivation mode. As oil processing proceeds these will flip-flop, the switching taking place when the sorbent has accumulated a certain amount of contaminants. This feature, managed by the SCADA (Supervisory Control and Data Acquisition System) control system, allows the regeneration of oil to proceed continuously. Reactivation of the sorbent is fully automated and enables the plant to process oil using the same Fuller’s Earth up to 300 times which is typically equal to 2 or 3 years of operation before sorbent replacement is required.
The final step of oil treatment is re-additivation. It is essential to restore the inhibitor content to the range 0.3-0.4 %, which is considered the optimal for inhibited oil. The appropriate amount is dissolved in a portion of the newly treated oil. This stock solution is introduced in the main oil flow and then circulated until it is well blended.
The system’s efficiency and reliability allows it to treat any mineral transformer oil to comply with all relevant international standards. Oil Regeneration provides a better alternative to oil replacement as treated oil parameters in most cases surpass those offered by new oil, as can be seen in table below.
GlobeCore offers a range of Oil Regeneration Plants with various flow rates from 2000 l/h to 10000 l/h.
For more details please contact Mr Stanislav Sukhar via skype: stan_globecore or by phone or email.
This photo is of Lakshadweep Island in India. OPS India has been awarded a prestigous contract with BHEL, to supply, commission and install proprietary technology inverters with MPPT and SCADA.
The solar PV net kWp of the four systems is 1.1 MWp.
The net kWp of the four systems is 1.1 MWp.
For Lakshadweep Project info visit our company Blog here
The above image depicts the existing PV arrays at the Pine Bluff project site.
The work was carried out on site by OPS in November 2009 and included a complete system upgrade of the old inverter to the new DSP controlled HPC system, with new current transducers installed and a user friendly SCADA package. This SCADA package will allow the operators and administrators of the school to effectively monitor and control the new system with ease and efficiency. The aging battery bank was entirely replaced with 40 x 6V, 875 Ah batteries, and the MPPT solar regulator was integrated into the DSP control to ensure maximum yield of the solar energy.
This photo depicts the smaller Grid Export Conditioner (GEC) unit which was added in later project development stages, after a small upgrade to the solar pv array was added.
The laptop shows the OPS SCADA remote monitoring system operating. OPS offer a range of SCADA software platforms to suit different projects types, such as OPS-Coms for single PCU projects, PVNet for multi-MW grid-connect systems and specialised Macro Hybrid Software for Macro Hybrid (large mini-grid) systems.
In 2012 OPS also released its Sitelink and Connect software platforms the latest in advanced communications remote power system monitoring.
Visit our OPS Blog for Bunaken Project info
Windy Hill was the first wind farm to be constructed in Queensland. Construction commenced in 1999 with turbine commissioning in 2000. The wind turbines were supplied by German company Enercon.
Windy Hill Wind Farm will reduce Australia’s greenhouse gas emissions by up to 25,000 tonnes of CO2 equivalent per year.
Windy Hill Wind Farm produces 12 megawatts of electricity from 20 turbines, or enough energy to supply 3,500 homes – equivalent to the towns of Atherton and Mareeba.
The land around the wind farm is owned by local farmers who have entered into lease access agreements with Transfield Services Infrastructure Fund.
The turbines are mounted on tubular towers 44 metres high, the hub height is 46 metres with a rotor diameter of 46 metres. The blades pitch to optimise the power produced and to control the rotational speed.
The Enercon E40 turbines were manufactured in Germany. Each generator has an electrical capacity of 600 kilowatts.
The development of the wind farm included an underground 22 kilovolt electrical reticulation system, customer SCADA system and wind monitoring system.
The wind farm was commissioned in August 2000, at a cost of $20 million.
Pulling the pins to open the gates.
Gates at the London Ave. Canal Interim Control Structure began opening just after 8 a.m. today after the lake level subsided below 2.5 feet.
On Saturday, easterly winds and heavy rain caused Lake Pontchartrain’s water level to reach the operational trigger of 2.5 feet and rising, prompting us to close the gates and begin pumping.
Previous procedures called for closing the gates when the lake-side gage reached 4 feet and rising only during tropical events. Lowering that elevation and operating during nontropical events reduces the risk of exceeding the canal’s safe water elevation. It also maximizes the Sewerage and Water Board’s pumping ability during heavy rainfall.
A three person team had been located at the structure throughout the weekend and is responsible for operating the gates and pumps from the control room.
Supervisory Control and Data Acquisition (SCADA) equipment enables our emergency operations center to remotely monitor and operate the system as a redundancy in our operation plan, should the need arise.
The Corps’ pumps have a maximum combined capacity of 5,200 cubic feet per second at the London Ave. Canal.
The lake is currently at about 2 feet and we will continue to monitor rainfall and tides in the lake.
www.trihedral.com - Visual Tag System (VTS) is Windows-based, HMI software for monitoring and control of mission critical applications. VTS applications range from OEM machine interfaces and standalone workstation to large, distributed client/server systems.
A comprehensive click & drag toolset allows for quick display creation and database development. The automatically generated scripting language can be modified by the customer to meet specific requirements.
Integrated SCADA Features
VTS includes an integrated SCADA tools layer called VTScada; which is available at no extra cost.
Designed for the water & wastewater industry, VTScada adds powerful remote asset management features to VTS telemetry applications. Industry-specific reports, auto-generated graphic displays and automatic historical data logging provide a platform for quick application development without compromising on features.
Ormar nadzora i upravljanja EK NUP-GK je glavni upravljački ormar SCADA (Supervisory Control And Data Acquisition) sustava (Zagreb - Glavni Kolodvor) za nadzor i upravljanje grijanjem skretnica, rasvjetom skretničkih i isklizničkih likova, te nadzor diesel agregata, ups kabineta, stanja vrata, termostata, vatrodojave i luksomata.
ELEKTROKEM d.o.o. - industrijska elektronika
Augusta Šenoe 69, Vugrovec Donji
10 360 Sesvete, Hrvatska
e-mail: elektrokem@elektrokem.hr
Telefon: +385 (0)1 2051-400
Telefaks: +385 (0)1 2051-406
Gates at the London Ave. Canal Interim Control Structure began opening just after 8 a.m. today after the lake level subsided below 2.5 feet.
On Saturday, easterly winds and heavy rain caused Lake Pontchartrain’s water level to reach the operational trigger of 2.5 feet and rising, prompting us to close the gates and begin pumping.
Previous procedures called for closing the gates when the lake-side gage reached 4 feet and rising only during tropical events. Lowering that elevation and operating during nontropical events reduces the risk of exceeding the canal’s safe water elevation. It also maximizes the Sewerage and Water Board’s pumping ability during heavy rainfall.
A three person team had been located at the structure throughout the weekend and is responsible for operating the gates and pumps from the control room.
Supervisory Control and Data Acquisition (SCADA) equipment enables our emergency operations center to remotely monitor and operate the system as a redundancy in our operation plan, should the need arise.
The Corps’ pumps have a maximum combined capacity of 5,200 cubic feet per second at the London Ave. Canal.
The lake is currently at about 2 feet and we will continue to monitor rainfall and tides in the lake.
SCADA (Supervisory Control And Data Acquisition) sustav se sastoji od korisničkog sučelja, servisa za razmjenu podataka i servisa za očitavanje signala. Korisničko sučelje nadzire i upravlja diesel agregatom, UPS sustavom, grijačima skretnica, rasvjetom skretnica, skretničkih i isklizničkih likova te očitava stanja otvorenosti vrata, termostata, vatrodojave i luksomata.
ELEKTROKEM d.o.o. - industrijska elektronika
Augusta Šenoe 69, Vugrovec Donji
10 360 Sesvete, Hrvatska
e-mail: elektrokem@elektrokem.hr
Telefon: +385 (0)1 2051-400
Telefaks: +385 (0)1 2051-406