Pumping Mexico City’s wastewater out of the city

03.07.2002

At the end of July this year, 20 Flygt heavy duty submersible propeller pumps will go into operation in the Grand Canal and the Rio Hondo River as part of Mexico City’s improved wastewater pumping system. The total value for the order, which consists of pumps, discharge columns, spare parts and onsite verification tests, is over USD 3.5 million.

Since Mexico City’s wastewater canals were built, the water table has dropped, and they have sunk in parts of the city. As a part of the project to improve the system, Dirección General de Construcción y Operation Hydráulica, DGCOH, have constructed two new pump stations that will lift the water up to a level where the water can flow freely downstream. Twenty high voltage Flygt submersible pumps will be used to pump the water.

Fourteen 300 kW pumps, with a total capacity of 40m³/sec, will operate at the largest station, which is located on the Grand Canal that runs north east through the city. As well as much of the Mexico City’s wastewater, most of the storm water, 95 percent of which falls between April and October, flows down the Canal. Six 480 kW pumps, with a combined capacity of 20 m3/sec, will be in operation at a smaller station on the Rio Hondo River, which flows north west through the city.

The order worth a total of over USD 3.5 million also includes discharge columns, spare parts and special tools, training of service engineers, installation, and comprehensive verification onsite testing.

The pump stations should be fully operational by the end of July.

Source: Xylem Inc.

More articles on this topic

Richmond Utility Uses Real-Time Analytics for Plan to Reduce Combined Sewer Overflows

03.05.2024 -

The city of Richmond, Virginia needed a plan to reduce combined sewer overflows (CSOs) into the James River, but how could its utility operators know which new infrastructure projects would have the biggest impact? The solution was a real-time visualization and decision support system from Xylem that identified critical infrastructure projects, helping the city develop a plan that could reduce CS0s by 180 million gallons and save costs.

Read more

Multi-Purpose Actuator Enables Ball Valve to Open and Close Automatically

02.05.2024 -

A major southern grow operation needed a valve to open and close automatically on a series of remote fertigation pipelines. The lines were in a location where compressed air and electricity were both unavailable and impractical. It was essential to have the valve close whenever the water supply dropped below operational pressure, to prevent the percentage of nutrients from exceeding safe levels and harming the crop.

Read more

Clean Alternative Fuel Liquid Ammonia Requires Fail-Safe and Hermetically Tight Pumps in the Shipping Industry

02.05.2024 -

Ammonia is currently at focus as clean alternative to heavy fuel oil that has predominantly been used. The technology employed in order to use liquid ammonia as a fuel must be hermetically tight and guarantee maximum operational safety as the gas is toxic and harmful to the environment. LEWA’s high-pressure diaphragm pumps meet these requirements. Their standard safety mechanisms make them suitable for hazardous, toxic and environmentally harmful fluids such as NH3, even under extreme operating conditions.

Read more