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Configuration – Internally Staged Design

Configuration – Internally Staged Design. Principle: Elements with the lowest production and highest rejection in the first positions and elements with the highest production in the rear positions of the vessel Advantages vs. conventional configuration

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Configuration – Internally Staged Design

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  1. Configuration – Internally Staged Design • Principle: Elements with the lowest production and highest rejection in the first positions and elements with the highest production in the rear positions of the vessel • Advantages vs. conventional configuration • Better hydraulics resulting in lower flux in the front modules: • Lower fouling potential -> lower energy required • Less cleaning needed -> longer membrane life • Lower energy requirement for a given production and/or higher production for a given pressure due to the use of high flow elements in the rear positions Internally Staged Design (ISD) Conventional

  2. Configuration – Internally Staged Design 6 x SW30HRLE-400i (7,500 gpd) Recovery system 37.11% Conventional 6 x SW30ULE-400i (11,000 gpd) Recovery system 42.42% 1 x SW30HRLE-400i + 1 x SW30XLE-400i + 4 x SW30ULE-400i Recovery system 41.80% ISD 1 x 7,500 gpd + 1 x 9,000 gpd + 4 x 11,000 gpd * Feed pressure: 56 bar * Feed TDS: 35,000 ppm * Feed flow: 12,4 m3/h

  3. Configuration – Internally Staged Design SW30HRLE-400i SW30XHR-400i SW30ULE-400i * COST CALCULATION (TOOLS): CAPEX and OPEX are taken into account. Model is prepared by a Consulting Company* for Dow (John Tonner Water Consultants International Inc.)

  4. Configuration – Internally Staged Design

  5. Configuration – Internally Staged Design

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