What is bod in wastewater treatment?
The treatment process begins with a wastewater collection system that is regulated by Industrial Pretreatment and Fat, Oils, and Grease programs. At the WRRF, wastewater initially passes through fine, step screens and vortex grit removers. ... Murfreesboro Water Resource Recovery Facility Plant Manager Email 2032 Blanton Drive Murfreesboro, TN ...
What is the permissible BOD level for wastewater disposal?
A portion of the cost involved with Murfreesboro wastewater services includes removing pollutants at a treatment plant. Wastewater treatment ensures that our rivers, lakes and oceans remain clean and safe to enjoy. Many of the byproducts that come out of treated wastewater are recycled. The remainder is disposed of in a fashion that is more ...
What is the wastewater treatment process?
· Wastewater treatment plants use BOD value as an index to ascertain the overall degree of organic pollution in a water source. A BOD test is typically carried out over a standard 5-day incubation period at 20°C (68°F) for the most accurate results. Generally, a higher BOD value indicates a higher level of water pollution, while a lower BOD ...
What is coagulation in wastewater treatment?
The Murfreesboro Wastewater Treatment Plant is located in Rutherford County, Tennessee, United States. The place is catalogued as Locale by the U.S. Board on Geographic Names and its elevation above sea level is equal to 564ft. (172mt.)
Where does Murfreesboro TN get its water?
Your water comes from two surface water locations. One water source is the East Fork of the Stones River and the other source is the J. Percy Priest Lake.
Can you drink tap water in Murfreesboro?
MURFREESBORO — City officials tout how their drinking water is safe and meets federal and state regulations.
What are the 3 stages of wastewater management?
There are three main stages of the wastewater treatment process, aptly known as primary, secondary and tertiary water treatment.
What are the 4 stages of wastewater treatment?
Four common ways to treat wastewater include physical water treatment, biological water treatment, chemical treatment, and sludge treatment. Let us learn about these processes in detail.
Which bacteria is used in aeration tank?
Aerobic bacteria are used in most new treatment plants in an aerated environment. This means that there is dissolved oxygen available for the respiration of the bacteria. They use the free oxygen in the water to degrade the pollutants in the incoming wastewater into energy they can use for growth and reproduction.
What bacteria is used in sewage treatment?
Anaerobic bacteria are used in wastewater treatment on a normal basis. The main role of these bacteria in sewage treatment is to reduce the volume of sludge and produce methane gas from it.
What decomposes sludge?
sludge is decomposed by Aerobic bacteria(Aerobic digestion is a bacterial process occurring in the presence of oxygen resembling a continuation of the activated sludge process. Underaerobic conditions, bacteria rapidly consume organic matter and convert it into carbon dioxide.)
What materials Cannot be removed from wastewater?
When wastewater arrives at the treatment plant, it contains many solids that cannot be removed by the wastewater treatment process. This can include rags, paper, wood, food particles, egg shells, plastic, and even toys and money.
What is called sludge?
The residue that accumulates in sewage treatment plants is called sludge (or biosolids). Sewage sludge is the solid, semisolid, or slurry residual material that is produced as a by-product of wastewater treatment processes. This residue is commonly classified as primary and secondary sludge.
What is removed during secondary wastewater treatment?
Secondary Treatment The secondary stage of treatment removes about 85 percent of the organic matter in sewage by making use of the bacteria in it. The principal secondary treatment techniques used in secondary treatment are the trickling filter and the activated sludge process.
What is the BOD in wastewater?
Usually determined alongside chemical oxygen demand (COD) in wastewater treatment, BOD is an important index that every industrial and municipal authority in the country should be aware of.
What is the maximum BOD level for wastewater disposal?
Clean Water Act. Typical maximum values range from 10 mg/L for direct environmental disposal and 300 mg/L for disposal to sewer systems .
What is the difference between BOD reduction and anaerobic decomposition?
Wastewater clarification and separation BOD reduction methods are part of the primary phase of wastewater treatment while anaerobic microbial decomposition is part of the second phase of treatment.
How does wastewater clarification work?
Wastewater clarification removes organic solids (primary sludge) from the water by utilizing the force of gravity – in other words, the heavier particles settle to the bottom and are removed first. Wastewater clarification is often followed by a chemical separation process.
Why is it important to know the BOD value?
Knowing BOD value helps municipal authorities determine their biological water quality and industries to assess the impact effluent disposal will have on the immediate environment.
What is the BOD test?
A BOD test is typically carried out over a standard 5-day incubation period at 20°C (68°F) for the most accurate results.
Why do municipalities use a BOD test?
Municipalities can use a BOD test to detect water contamination in their public supply to ensure that it is safe for human consumption. Industries need to know their BOD value to determine when treated wastewater is safe for reuse or disposal.
Murfreesboro Wastewater Treatment Plant, Rutherford County, Tennessee
Murfreesboro Wastewater Treatment Plant is a cultural feature (locale) in Rutherford County. The primary coordinates for Murfreesboro Wastewater Treatment Plant places it within the TN 37129 ZIP Code delivery area.
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Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2021, data includes home values, household income, percentage of homes owned, rented or vacant, etc.
Daily Water Quality Report
SRWTP has a treatment capacity of 20 million gallons per day. The recent expansion increased:
Distribution System and Storage
The distribution water system service area encompasses 36 square miles and consists of 435 miles of water lines. There are five water storage tanks having a total storage capacity of 12 million gallons. In addition to storage, these tanks help maintain system pressure and provides fire protection.