A wastewater treatment plant is a place where wastewater from homes and other buildings is collected and processed. The sewage treatment plant treats all of the collected sewage water. There are four stages of wastewater treatment, including screen, sedimentation, and discharging into water reservoirs.
What is a wastewater treatment plant?
A wastewater treatment plant is a place where wastewater from homes and other buildings is collected and processed. WWTP is an abbreviation for Waste-Water Treatment Plant. A wastewater treatment plant is also referred to as a sewage treatment plant.
What is DWSD?
DWSD is a branch of city government. In 1852, the City of Detroit's Common Council formed a Board of Trustees to operate the water system and provide it with hands-on management. In 1853, the state legislature transformed the Board of Trustees into the Board of Water Commissioners (BOWC) which continues as DWSD's governing body today.
What's going on with the Detroit wastewater treatment plant?
Construction of the Detroit wastewater treatment plant. In addition to the major infrastructure elements of the project, a scheme is underway to compile and update the plant's "as-built" drawings and to create them where none currently exist. A network database is also being developed to store them.
What was the first wastewater treatment plant in the United States?
HRC were consultants on the design of the pumping station, grit chambers, and special baffles for the rectangular tanks for the first wastewater treatment plant. The plant began operation in 1940 as a primary treatment plant, thereby preventing the untreated discharge of 400 MGD of raw sewage to the Detroit River.
What are the 3 stages of wastewater treatment?
There are three main stages of the wastewater treatment process, aptly known as primary, secondary and tertiary water treatment. In some applications, more advanced treatment is required, known as quaternary water treatment.
What are the 5 stages of wastewater treatment?
Treatment StepsStep 1: Screening and Pumping. ... Step 2: Grit Removal. ... Step 3: Primary Settling. ... Step 4: Aeration / Activated Sludge. ... Step 5: Secondary Settling. ... Step 8: Oxygen Uptake. ... Sludge Treatment.
What are the 4 stages of wastewater treatment?
4-Step Wastewater Sludge Treatment ProcessStep 1 – Sludge Thickening. The first step in the sewage sludge treatment plan is called thickening. ... Step 2 – Sludge Digestion. After amassing all the solids from the sewage sludge begins the sludge digestion process. ... Step 3 – Dewatering. ... Step 4 – Disposal.
What are the three types of wastewater systems?
However, there are a few different types of sewer systems and they each have a unique purpose for catching waste and wastewater. The three types of sewers are sanitary sewers, storm sewers, and combined sewers.
What are the 7 steps in wastewater treatment?
The Wastewater Treatment ProcessStage One — Bar Screening. ... Stage Two — Screening. ... Stage Three — Primary Clarifier. ... Stage Four — Aeration. ... Stage Five — Secondary Clarifier. ... Stage Six — Chlorination (Disinfection) ... Stage Seven — Water Analysis & Testing. ... Stage Eight — Effluent Disposal.
What is wastewater treatment and why is it important?
The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment. As solid material decays, it uses up oxygen, which is needed by the plants and animals living in the water.
What are the methods of waste water treatment?
Four common ways to treat wastewater include physical water treatment, biological water treatment, chemical treatment, and sludge treatment.
What are the four basic principles for water treatment?
4 Steps of Community Water TreatmentCoagulation and Flocculation. ... Sedimentation. ... Filtration. ... Disinfection.
What is the process of wastewater treatment is commonly known?
The Correct Answer is Sewage treatment. Sewage treatment is a method for the extraction of pollutants from urban wastewater, consisting primarily of household wastewater and some industrial wastewater.
What are the 2 types of wastewater?
Types of sewage Domestic sewage carries used water from houses and apartments; it is also called sanitary sewage. Industrial sewage is used water from manufacturing or chemical processes.
What is the best wastewater treatment system?
To give a short answer, the best system on the market is the ClearFox Nature. This is a totally non-electric plant, and it is the only non-electric treatment plant in the world that does not require replacement parts or media. So, the best non-electric sewage treatment plant is without a doubt the ClearFox Nature.
What are the main sources of wastewater?
Wastewater is 'used water' from any combination of the sources listed below:Domestic.Industrial.Commercial.Agricultural activities.Surface runoff or storm water.Any sewer inflow or sewer infiltration.Horticultural.Aquaculture effluent.
When did Detroit Water and Sewerage Department start?
The extensive scheme of work currently being implemented by Detroit Water and Sewerage Department (DWSD) is the latest in a long history of upgrades to keep up with changing times and growing demands since the plant first entered service in February 1940.
When was Detroit's sewer system built?
Detroit’s sewer system began in 1836 with the “The Grand Sewer” – a stone and brick construction which enclosed Savoyard Creek – a portion of which remains in service to this day. Over the next hundred years, the burgeoning population and, in particular, the rapid development of Detroit’s east side resulting from the enormous growth of motor car manufacturing placed ever increasing demands on the existing infrastructure. To relieve the situation, a series of new sewers were constructed, along with Detroit’s WWTP, which was completed in 1939 at a cost of $10 million.
When was the WWTP built?
To relieve the situation, a series of new sewers were constructed, along with Detroit’s WWTP, which was completed in 1939 at a cost of $10 million. The plant was originally designed to provide primary treatment, which then comprised the removal and incineration of settled solids and the chlorination of the effluent, ...
Where is the DWSD located?
Both DWSD and GLWA are headquartered in the Water Board Building located at 735 Randolph Street in Detroit. DWSD is a branch of city government. In 1852, the City of Detroit's Common Council formed a Board of Trustees to operate the water system and provide it with hands-on management. In 1853, the state legislature transformed the Board ...
What was the DWSD in 2015?
In 2015, DWSD sponsored or participated in a wide-range of outreach activities. In addition to numerous community group and block club meetings, DWSD participated in the March of Dimes March for Babies, Detroit River Water Festival, Making Strides Against Breast Cancer Walk, among others.
How long is the lease agreement between DWSD and GLWA?
The agreement between DWSD and GLWA includes a $50 million annual lease payment for 40 years to replace and rehabilitate DWSD’s aging water and sewer system. DWSD continues to retain ownership of the regional assets.
What is the Detroit water and sewer system?
The Detroit Water and Sewerage Department (DWSD) is one of the largest water and sewer utilities in the United States serving more than 200,000 Detroit residential and commercial accounts that includes a city population of nearly 680,000. DWSD’s water network consists of more than 2,700 miles of transmission and distribution mains ...
Where is the Detroit Water and Sewerage Department located?
Both DWSD and GLWA are headquartered in the Water Board Building located at 735 Randolph Street in Detroit.
What are the five operating groups of DWSD?
DWSD is organized into five operating groups: Customer Care, Field Services, Finance and Procurement, Administration, and Meter Operation s. By Michigan statute, water and sewer rates are based on the cost of service only. The department receives no subsidies from property taxes.
What is GLWA in Detroit?
On January 1, 2016, the City of Detroit began leasing regional water and sewer infrastructure, as well as water and wastewater treatment facilities, to the Great Lakes Water Authority (GLWA). The regional system built by DWSD, serves 126 municipalities in seven southeast Michigan counties. The agreement between DWSD and GLWA includes ...
What is DWSD system plan?
DWSD System Plans cover improvements and expansion to both the fresh water and wastewater networks. There are also technical specifications for commercial, industrial and residential plumbing and water drainage systems. Detailed drawings for contractors are housed within this section, as well.
What is DWSD's water master plan?
DWSD's Master Plan covers both our fresh water and wastewater operations for the next 50 years. This takes into account population growth, commercial and industrial needs, as well as the increased cost to maintain such systems. These documents serve as the basis for DWSD's continued mission to deliver the best services to all of the communities we serve. The most recent Water Master Plan was prepared in 2004.
What is the name of the system that regulates the discharge of water into streams?
The discharge of water into receiving streams in the United States is regulated through a system known as the National Pollutant Discharge Elimination System (NPDES). DWSD has a permit, called a NPDES permit, to discharge water into receiving streams.
Capital Improvement Plans
Master Plans
- DWSD's Master Plan covers both our fresh water and wastewater operations for the next 50 years. This takes into account population growth, commercial and industrial needs, as well as the increased cost to maintain such systems. These documents serve as the basis for DWSD's continued mission to deliver the best services to all of the communities we ...
2015 Comprehensive Water Master Plan
National Pollutant Discharge Elimination System
- The discharge of water into receiving streams in the United States is regulated through a system known as the National Pollutant Discharge Elimination System (NPDES). DWSD has a permit, called a NPDES permit, to discharge water into receiving streams. The program is regulated at the state level by the Michigan Department of Natural Resources and Environment (MDNRE), and re…