Resources & Reference Materials

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26th Ward WWTP Bypass

USA
The Combined Sewer Overflow Regulator at the 26th Ward WWTP in Brooklyn collapsed. The estimated flow through this regulator was 85 MGD, with a combined plant...

Aeration Efficiency in Oxidation Ditches

SWEDEN
Oxygen transfer and efficiency in water reclamation facilities are studied. In particular, design aspects of the factors affecting aeration performance in...

Albany, NY installs Wedeco Duron UV Disinfection at South WWTP

USA
ChallengeThe ACSD South Plant is a conventional activated sludge plant with an average low of 19.5 MGD, and a maximum flow of 45 MGD. Constructed in 1974, it...

Albany, NY looks to Godwin pumps for Sewer Bypass System

USA
New York’s Albany County was in the process of updating its wastewater treatment plants when it turned to BCI Construction for a temporary bypass system to...

An underground pump station – fit for a king

SWEDEN
Stockholm’s largest pump station is situated some meters below a site which was once a 17th century palace in the middle of the city. The large flows and...

AOPs for degrading metaldehyde in surface water used for drinking water

UK
Intensive farming and the associated use of pesticides is one of the main reasons that these regulated substances can be found in the drinking water reservoirs...

Bringing pumping efficiency beyond par

UK
England’s Northumbrian Water Ltd (NWL) serves roughly 2.5 million people with water and sewerage services. To better assess its predicted results they...

Building an Invisible and Soundless Power Plant in Italy

The Villoresi Channel
Milan, Italy
ChallengeThe Villoresi Channel, located north of Milan, was designed with the main purpose of agricultural irrigation while providing water to the city of...

Circular sewage and stormwater pump station

CHINA
Challenge A large combined sewage and stormwater station will be built in one of the largest cities in the world. The flow is high, the head is fairly low, and...

Circular stormwater and wastewater pump station

CHINA
ChallengeSituated on an estuary of a major river, one of the largest cities in China has an average annual rainfall of 1100 mm (43 in). The three-month typhoon...

Circular stormwater pump station

FRANCE
ChallengeOne of the largest airports serving France required a stormwater treatment plant to handle the inflow from a large gravity sewer collecting water...

Circular wastewater lift station

USA
Challenge A 54,000-acre service area in a major city in Texas required assistance to handle a projected 50% increase in population and subsequent increase in...

City of Penticton doubles capacity with a Leopold Clari-DAF system retrofit to allow new flow through same footprint

CANADA
The Leopold Clari-Daf system installed in the City of Penticton filters water drawn from the Okanagan Lake. The new system provides affordable clarification...

City Validates Innovative Reuse Treatment Options Without RO

USA
ChallengeHollywood, Florida's 55.5 MGD Southern Regional Wastewater Treatment Plant (SRWWTP) treats wastewater from Hollywood and six neighboring...

Clog resistance cannot be determined by throughlet size

A wastewater pump’s throughlet size is frequently used to specify clog resistance, despite data that demonstrates the irrelevance of this measurement. Clogging...

Combined sewage and stormwater pump station

USA
ChallengeTo develop a combined stormwater and sewage pump station at the lowest possible cost.Solution The station was designed with three Flygt CP 3501 and...

Compact stormwater pump station

USA
ChallengePlacement of a new stormwater pump station in a 10 m x 5 m (32 × 18 ft) area between two roads and a hotel in one mid-western state’s major cities....

Cooling water for gas-fired power plant

SWEDEN
Challenge A gas-fired power plant in southern Sweden required a supply of cooling water to be pumped through a long pipe, which is sensitive to water hammer,...

Cost-efficient pump station

BELGIUM
ChallengeTo provide a cost-efficient pump station fed by three independent inlets, resulting in a potential maximum inflow of 7.8 m3/s (123,000 US gpm)...

Creating a white-water ride

SPAIN
ChallengeCreating an artificial white water channel for water sports such as kayaking, canoeing and rafting by pumping 3 m3/s (48,000 US gpm) per pump at a...

Creek Culvert Bypass Helps New York State Avoid a Major Road Closure

Fulton County, NY
Mayfield Creek in Fulton County, New York, is an arterial body that flows out of Great Sacandaga Lake for approximately four miles through farmland and the...

Decoloration and Tensides Reduction with Ozone Oxidation

ITALY
This case story presents the role played by ozone in achieving environmental friendly strategies for several types of industrial wastewaters that contain color...

Decolorization with Ozone: Wastewater treatment at Buttenpapierfabrik Gmund

BAVARIA
Wastewater treatment at Buttenpapierfabrik Gmund uses a Wedeco ozone generator during its paper decolorization processes. The water is then reused for...

Don’t get hot and bothered get N-pumps

NEW ZEALAND
Frequent blockages and the challenges associated with high temperature geothermal environments put extreme demands on this pumping station. A lot of different...