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Topic: Wastewater treatment plant

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	Sewage treatment - Wikipedia, the free encyclopedia
		The objective of the treatment is to produce both a clean wastestream (or treated effluent) suitable for discharge or reuse back into the environment, and a solid waste or sludge also suitable for proper disposal or reuse.
		In older plants and plants receiving more variable loads, trickling filter beds are used where the settled sewage liquor is spread onto the surface of a deep bed made up of coke (carbonised coal), limestone chips or specially fabricated plastic media.
		The purpose of disinfection in the treatment of wastewater is to substantially reduce the number of living organisms in the water to be discharged back into the environment.
	en.wikipedia.org /wiki/Sewage_treatment (3960 words)

	Martinsville's Wastewater Treatment Plant
		Wastewater overflows the effluent weirs of the clarifiers and is transported to the secondary treatment process.
		As the strength of the incoming wastewater increases, the oxygen demand of the activated sludge organisms increases, requiring more dissolved oxygen to be supplied by the aeration equipment and conversely, when the incoming organic concentration decreases, the oxygen demand of the organisms decreases.
		Wastewater overflows the effluent weirs and is transported to the chlorine contact tanks for disinfection.
	www.ci.martinsville.va.us /Water/wwtp.htm (2503 words)

	Water/Wastewater Treatment Plant Operator Profile
		Wastewater treatment plant operators remove harmful pollutants from domestic and industrial wastewater so that it is safe to return to the environment.
		Wastewater travels through customers' sewer pipes to wastewater treatment plants where it is treated and returned to the streams, rivers and oceans, or reused for irrigation and landscaping.
		Employment of water and wastewater treatment plant operators is expected to grow as fast as the average for all occupations through the year 2012.
	www.delta.edu /jobplace/CareerProfiles/watertreatmentprofile.html (949 words)

	Lynn Wastewater Treatment Plant
		Wastewater is the used water and solids from a community that flows to a treatment plant.
		Treatment plants are not designed to remove all possible wastes from a wastewater flow.
		The Lynn Regional Wastewater Treatment Facility is currently a primary and secondary treatment plant with a design purpose of the primary to remove Settleable and floatable material (sludge, grease, etc.).
	members.aol.com /erikschiff/lwwtp1.htm (345 words)

	City of Wichita - Sewage Treatment Wastewater Treatment Plant
		A treatment plant accomplishes in a few hours what would take place over a period of days or weeks if the wastewater was discharged directly into the river, thus preserving the ecosystem of the river.
		Treatment begins when the wastewater flows from the mainline sewer through a bar screen which prevents large pieces of material from clogging or damaging the plant equipment.
		Wastewater which has received primary treatment at Plant #1 flows by gravity through a line 66 inches in diameter to Plant #2 for secondary treatment.
	www.wichita.gov /CityOffices/WaterAndSewer/SewageTreatment/Wastewater.htm (511 words)

	Denmark Wastewater Treatment Plant
		An issue for all wastewater treatment plants is the disposal of the biological sludge or biosolids, which are necessarily generated in the process of treating the wastewater.
		The wastewater then flows into the DAT which is aerated and in which phosphorus is removed from the wastewater by those organisms that had taken up the short chain fatty acids in the anaerobic reactor.
		This treatment plant will improve the environment of Denmark and its surrounding waters due to a much cleaner effluent being produced than in the past; the levels of organic carbon, nitrogen and phosphorus in the effluent are significantly lower than in the past.
	www.deh.gov.au /settlements/industry/corporate/eecp/publications/wastewater/denmark.html (2102 words)

	Jersey Shore Wastewater Treatment Plant, Wastewater/Water Treatment - LDG (Site not responding. Last check: 2007-09-20)
		A bypass pipe, installed at the treatment plant, is used to bypass partially treated wastewater around the secondary treatment system to handle these excessive flows.
		Treatment plant operators typically activate the bypass when flows at the plant exceed 2.15 million gallons per day.
		The purpose of this study was to identify hydraulic limitations within the existing treatment plant and determine actions necessary to increase the flow capacity of the plant.
	www.larsondesigngroup.com /project-jersey-shore-wastewater-treatment-plant.asp (567 words)

	Water and Wastewater Treatment Plant Operators
		Water and wastewater treatment plant operators work both indoors and outdoors and may be exposed to noise from machinery and unpleasant odors.
		Postsecondary training in water and wastewater treatment coupled with increasingly responsible experience as an operator may be sufficient to qualify for superintendent of a small plant, where a superintendent also serves as an operator.
		Employment of water and wastewater treatment plant operators is expected to grow as fast as the average for all occupations through the year 2008.
	www.umsl.edu /services/govdocs/ooh20002001/361.htm (1908 words)

	Waste Water Treatment Plant
		The Wastewater Treatment Plant is a division of the Utilities Department, which provides wastewater pumping and treatment, effluent and receiving stream monitoring, management of treatment residuals, and industrial waste control for Springfield and some surrounding areas, which are tributary to the collection system.
		The Springfield Wastewater treatment plant was originally constructed and placed into operation with preliminary and primary sewage treatment, and single stage anaerobic sludge digestion followed by a vacuum filter.
		The preliminary treatment process was expanded and upgraded to dual units for screenings and aerated grit removal, and a chlorine contact basin and storage building for ton containers was added to improve the disinfection process.
	www.ci.springfield.oh.us /depts/service/wwtp (584 words)

	Vint Hill Farms Wastewater Treatment Plant
		The treatment plant is located on the closed Vint Hill Farm Station army base and currently discharges to South Run, a tributary to Lake Manassas, the drinking water source for Manassas, Manassas Park, and parts of Prince William County.
		Declaration of Regional Plant - The Fauquier County Water and Sanitation Authority stated that staff should not predetermine the Vint Hill treatment plant as the regional plant through this permitting process and that it should be sufficient for DEQ to note that the expansion is in full compliance with Part 30 of the Policy.
		One-time Improvement of an existing Wastewater facility – The Fairfax County Water Authority interprets Part 30 of the Occoquan Policy to relate to a single one-time improvement of an existing waste treatment facility and not for the replacement of said facility which the FCWSA is proposing to do.
	www.pwconserve.org /issues/occoquan/vinthillwwtp.html (1931 words)

	Welcome to the City of York, Pennsylvania - The First Capital of the United States (Site not responding. Last check: 2007-09-20)
		The 26-mgd wastewater treatment plant is owned by the York City Sewer Authority and operated by group of dedicated professionals of the City of York.
		Wastewater from the City and all or portions of North York Borough, West York Borough, Manchester Township, West Manchester Township, York Township, and Spring Garden Township is sent to our facility.
		In receiving the award the plant was noted for accomplishing the mission of the P.W.E.A. which is to protect, preserve, and improve the water environment in the Commonwealth of Pennsylvania.
	www.yorkcity.org /cityservices/wwtp/index.htm (556 words)

	City of Ashland, Oregon - Wastewater Treatment Plant
		The City of Ashland's wastewater treatment plant operates as a secondary treatment system for five months (December 1-April 30), and as a tertiary system the remaining seven months (May 1- November 30).
		The biological treatment operation of the oxidation ditch depends upon a population of organisms in the oxidation ditches which convert the organic material in the wastewater to new cells, and the subsequent settling and removal of the organisms in the secondary clarifiers.
		The population of microorganisms, referred to as mixed liquor (ML), is maintained in the oxidation ditches and is responsible for the wastewater treatment and nutrient removal.
	www.ashland.or.us /Page.asp?NavID=8494 (1763 words)

	Point Loma Wastewater Treatment Plant \| Metropolitan Wastewater
		Following grit removal, the wastewater is pumped into sedimentation tanks where organic solids settle to the bottom of the tanks and "scum" (primarily cooking grease and oil) float to the surface.
		The organic solids ("sludge") which have settled out of the wastewater are pumped into one of the eight digesters on site where they are reduced in volume through a heat and bacterial process similar to human digestion.
		The Point Loma Wastewater Treatment Plant recently received its ninth Gold Award from the Association of Metropolitan Sewerage Agencies for its ninth year of complete compliance with all Federal and State regulations.
	www.sandiego.gov /mwwd/facilities/ptloma.shtml (759 words)

	Floyds Fork Wastewater Treatment Plant
		This facility will allow MSD to eliminate existing, neighborhood package treatment plants that have a history of operational problems as the infrastructure is expanded in the area east, west and north of the plant.
		The plant is designed to receive an average daily flow of 3.25 million gallons per day and a peak flow rate of 10.4 million gallons per day.
		Plant facilities treat wastewater to tertiary-level standards, meaning at least 95% of its major pollutants are removed before being discharged into Floyds Fork creek, a tributary to the Salt River.
	www.msdlouky.org /insidemsd/floydswtp.htm (177 words)

	Utilities / Wastewater Plant - Oregon, Ohio
		Primary treatment is then completed by the grit removal tanks and two circular settling tanks which operate in parallel and remove settleable solids, grit, sand and floating materials.
		The portion of the purified wastewater that does not settle in the final clarifiers is disinfected in the chlorine contact tanks.
		Sludge, or the portion of the wastewater and heavier material which settle in the clarification tanks are pumped to the aerobic digestion tank.
	www.ci.oregon.oh.us /ctydpt/utilities/wastewater/wastewater.htm (755 words)

	Wastewater Treatment Plant Proposal (Site not responding. Last check: 2007-09-20)
		The City of Helena is preparing for major upgrades to its 40-year-old wastewater treatment plant.
		The current wastewater treatment plant cannot meet new federal standards governing ammonia levels in treated wastewater.
		The renovated treatment plant will continue to serve City of Helena residents and also will maintain the capacity to treat wastewater from outlying areas if existing treatment systems wanted to connect to the plant and become city customers.
	www.ci.helena.mt.us /works/waste/Wastewater_Fact_Sheet.php (541 words)

	ActewAGL \| Education Site \| Wastewater \| Treatment (Site not responding. Last check: 2007-09-20)
		A small sewage treatment works was built at Fyshwick in 1967 to treat wastewater that could not easily be dealt with at Weston Creek.
		During treatment all of the solid material, called sewage sludge, is taken out and burnt in a high-temperature furnace.
		During treatment, scum that is taken out during solids separation is used as fuel for the incinerator.
	www.actewagl.com.au /education/water/wastewater (593 words)

	Hailey Wastewater Department: Hailey's Wastewater Treatment Plant (Site not responding. Last check: 2007-09-20)
		Once in the plant, the wastewater passes through a self-cleaning, cylindrical fine screen that removes all the large pieces of debris like paper towels from the waste stream.
		Once all the material that could cause problems in the plant by fouling pumps or plugging pipes is removed, the process moves on to treat the nutrients and organic matter in the wastewater.
		At this point the wastewater is done with most of its treatment except for a final filter (tertiary treatment) to remove some of the very fine solids that won't settle and UV (ultraviolet) disinfection to kill any pathogens in the water.
	www.haileycityhall.org /publicworks/wastewater/treatmentplant.asp (725 words)

	Welcome to the City of Hollywood, Florida - Public Utilities (Site not responding. Last check: 2007-09-20)
		The City of Hollywood's Southern Regional Wastewater Treatment Plant is an activated sludge treatment plant.
		Wastewater entering the treatment plant flows through a series of units which remove the pollutants before finally being discharged.
		The primary distinguishing feature of this system is that high purity oxygen gas is the source of oxygen for the aerobic biomass in the oxygen trains, as opposed to air as the source in all other modifications of the activated-sludge process.
	www.hollywoodfl.org /pub-util/tour-sewer.htm (280 words)

	Wastewater Treatment plant (Site not responding. Last check: 2007-09-20)
		After grit is removed, water begins primary treatment in a large basin or tank (left), called a primary clarifier, where solids (called sludge) settle and light materials (grease, oil, light solids) float.
		When water leaves a primary treatment clarifier, it flows to secondary or biological treatment, which exposes it to bacteria that "eat" dissolved and organic materials still floating in the water.
		One common biological treatment unit is an aeration tank (left).
	www.lehigh.edu /~kaf3/envt/wastewater_plant.htm (1064 words)

	TREATMENT PLANT UPGRADE (Site not responding. Last check: 2007-09-20)
		The Wastewater Treatment Facility prior to the upgrade could not meet new federal standards governing ammonia levels in treated wastewater.
		In addition, some equipment at the plant has become so worn out that it no longer works properly and cannot be repaired.
		The renovated treatment plant will continue to serve City of Helena residents and also will maintain the capacity to treat wastewater from outlying areas if existing treatment systems wanted to connect to the facility and become city customers.
	www.ci.helena.mt.us /works/waste/virtual/treatmentplantupgrade.php (424 words)

	Plant Combines Wastewater Treatment and Energy Conservation
		The methane gas produced during the organic treatment process was captured and used to operate the reciprocating engines to generate electricity.
		In addition to capturing and using the methane gas produced during the wastewater treatment process, a closed-loop system for the high-temperature exhaust that is produced by the gas turbines has been established.
		Both the gas from the plant's digester tanks as well as that from the nearby landfill are high in carbon dioxide.
	www.wqpmag.com /wqp/index.cfm?powergrid=rfah=\|cfap=&CFID=2168092&CFTOKEN=56367889&fuseaction=showArticle&articleID=3366 (1542 words)

	North River Treatment Plant (Site not responding. Last check: 2007-09-20)
		The North River wastewater treatment plant is located on the Hudson River, west of the West Side Highway from 137th Street to 145th Street.
		The plant provides wastewater treatment for the hundreds of thousands of people who live and work in or visit the west side of Manhattan, from Bank Street in Greenwich Village to Inwood Hill at the island’s northern tip.
		Secondary treatment is called the “activated sludge process,” because air and "seed" sludge from the plant treatment process are added to the wastewater to break it down further.
	www.nyc.gov /html/dep/html/northri.html (1173 words)

	Princeton Indiana Wastewater Treatment Plant (Site not responding. Last check: 2007-09-20)
		The treatment process uses both gravity and natural biological functions to continually improve the waste stream as it passes through each phase of the facility.
		Phase 3 the oxidation ditch and fine bubble aeration is the heart of our treatment plant, this biological treatment process, reduces the amount of organics as well as ammonia nitrogen of the effluent.
		Princeton is the third wastewater treatment plant (WWTP) in the Midwest to employ phased oxidation ditch technology to produce a high-quality effluent.
	www.princeton-indiana.com /wastewater (673 words)

	City of Marquette Wastewater Treatment Plant (Site not responding. Last check: 2007-09-20)
		As the wastewater flows through the step-screen inorganic and large solids are removed from the waste stream.
		Following the preliminary treatment area, the wastewater flows into the primary settling tanks where approximately 50% of the organic material is settled.
		As the wastewater flows out of these tanks, sodium bisulfite is added to remove the residual chlorine to levels less than 0.036 ppm before the wastewater is discharged into the Carp River.
	www.mqtcty.org /departments/water/WasteWaterPlant.htm (992 words)

	Wastewater Treatment Plant Upgrades Moving Ahead (Site not responding. Last check: 2007-09-20)
		Upgrades are well underway at six wastewater treatment plants (WWTPs) in the watersheds of New York City's Catskill and Delaware Water Supply Systems, according to an announcement by Commissioner Joel A. Miele Sr., P.E., of the City's Department of Environmental Protection (DEP).
		Five of the plants undergoing upgrades are in Delaware County -- the municipal facilities owned by the Villages of Delhi, Hobart, Stamford and Walton, and another that treats wastewater at Worcester Creamery, formerly Mountainside Dairy Farms, in Roxbury.
		In addition to these six plants, the upgrades of 21 smaller WWTPs in the Catskill/Delaware watershed are all scheduled for completion by or before the first quarter of 2003.
	www.nyc.gov /html/dep/html/press/01-40pr.html (380 words)

	Rhinelander Wastewater Treatment Plant
		An RV Dump Station is located at the entrance to the wastewater treatment plant on Boyce Drive. The fee is $3.00 per use. Rhinelander residents may use the facility free of charge.
		Preliminary treatment is provided by Muffin Monster Grinders, which chop and grind material such as rags and paper. Grit is removed in a Pista Grit chamber and is separated in a cyclone grit classifier. Grit is disposed of in a landfill.
		Primary treatment is provided by four Hydrasieve screens. Secondary treatment is provided by two Biotower trickling filters followed by secondary clarifiers. Wastewater is disinfected and dechlorinated prior to its discharge to the Wisconsin River.
	www.rhinelandercityhall.org /wastewater.cfm (235 words)

	Wastewater Treatment Plant
		The Wastewater Treatment division operates and maintains the Punta Gorda Wastewater Treatment Plant, a 4.0 MGD (Million Gallon per day) plant.
		Wastewater residuals are beneficially reclaimed by land application to on-site agriculture fields.
		A 5 year renewal application was submitted to Florida Department of Environmental Protection for the wastewater plant operating permit as required for the facility.
	www.ci.punta-gorda.fl.us /departments/utilities/wwtp.htm (212 words)

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