Siemens to Provide Water Treatment Solution in Colombia

System will treat process water and wastewater from Reficar refinery

The Siemens Industry Automation Division will equip the Reficar refinery in Cartagena, Colombia with an integrated water treatment solution. It will form the heart of a combined system for treating both process and wastewater. Siemens technologies will be applied to prepare river water for use as boiler feed water, and to purify wastewater before discharge, for example. The order is worth over thirty million US dollars. It is part of a project to expand and modernize the refinery, which is scheduled to be completed in the first half of 2013.

Water is required for a number of steps in the refining process. Siemens will supply a multicomponent solution for treating the process water in the Reficar refinery. These include contact basins for softening the water and a J-Press filter press for thickening the accumulated primary sludge. Siemens will also provide plants for desalinating the boiler feed water and treating waste lye. The condensate is to be cleaned with granular, active charcoal filters.

The wastewater from the refinery will also be purified by a multistage system. To start with, API (American Petroleum Institute) separators and DGF (Dissolved Gas Flotation) systems will separate the oil from the water. An Omniflo sequencing batch reactor will handle the biological purification before the Hydro-Clear sand filter employs gravitational filtration in the tertiary stage. Centrifuges will be used to dewater the sludge.

The expansion project will not only double the capacity of the refinery to 165,000 barrels of crude oil per day, but also produce better quality, low-sulfur fuel. This will improve the fulfillment of national and international environmental directives.

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