Municipal Chemical Pump

Municipal Water Treatment Most municipal water is supplied from water sources such as large wells, reservoirs, rivers or lakes. Dirt, debris, and biological agents that may be toxic, and cause water to taste and smell bad must be removed to meet regulatory requirements. Generally, municipal water goes through three steps: 1. Sedimentation and Flocculation The influent is screened then held to allow the settlement of solids to the bottom of a holding tank or reservoir. Further clarification is accomplished though the introduction of coagulation agents that bind solids that do not settle. 2. Filtration...

Wastewater Treatment Most municipalities are not only responsible for supplying clean water for public use, but are also responsible for treating wastewater before returning the effluent to nature. The steps for this are similar to producing water for use. 1. Screening, Processing and Sedimentation Raw sewage is screened to remove solid waste. The effluent is then ran through a comminutor to break up hard material. Solids in suspension are settled within the grit chamber and aeration tanks. The resulting solids are typically sent to a landfill. 2. Clarification The effluent is sent through a...

Municipalities that fail to take proactive action to control odors run the risk of alienating themselves from the community and may face harsh penalties. This is especially true as urban areas expand into the once remotely located water treatment facilities. Odors are caused by the bacteria used to consume raw waste as well as other treatment processes. As bacteria break down organic solids, they release sulfate ion (SO2-4) as the oxygen source for respiration, producing hydrogen sulfide (H2S) which causes the offensive rotten-egg odor. H2S is also highly corrosive. Areas of water treatment facilities...

ment oval & rage mary fication Ferric Chloride Coagulation Flocculation Sedimentation Final Clarifier Settled Solids Centrifuge/ Dewatering Primary Clarifier Aeration Tank Final Clarifier Discharge to Watershed Disinfection Flocculation, Sedimentation NaOH Activated Sludge Return Centrifuge/ Dewatering

Odor Control Methods Depending where odors occur, there are two groups of technologies used in odor mitigation: Vapor-Phase and Liquid-Phase. There are many technologies; but the focus here is where corrosion resistant pumps may be needed. Vapor-Phase Most odors are mitigated by sealing/covering basins and biological and chemical solutions. Iron salts (ferric chloride or Iron(III)) can be introduced at key points in liquid processes to oxidize and precipitate sulfides. This results in ferrous sulfides which can be used downstream to remove phosphorous, serving a dual purpose. Handling Iron(III)...

• Tough Flouropolymer ETFE lining resists almost all corrosive chemicals and is permanently bonded to the substrate ductile iron • Users get all the chemical resistance without the high cost of corrosion resistant metals like Super Duplex Steel, • The pump can be located in confined areas where space is at a premium • No need to worry about alignment • No need to worry about finicky and difficult to maintain and expensive mechanical seals and seal plan systems • No need to worry about leaks. The 3298 is leakproof! • The Model 3298 has few parts and is easy to maintain • Optional DryGuard® bearings,...

In Addition to the 3298, There is a Goulds Pump for a Wide Range of Municipal Applications General Service ANSI pump Sealed Lined Pumps for Limited Solids Handling and Corrosion Resistance Recessed Impeller Solids Handling Non-metallic Pump for Chemical Resistance Double Suction for Higher flows An ITT Brand 240 Fall Street Seneca Falls, NY 13148 Phone: 315.568.2811 Fax: 315.568.2418 www.gouldspumps.com Vertical Sump Pump For Low NPSH and High Pressure Services