Zenon ZeeWeed

The ultrafiltration unit, containing submerged polyvinylidenefluoride (PVDF) hollow-fiber membranes (ZeeWeed by Zenon), is designed to treat 1600 m3/h of wastewater with a COD/h of445 kg and the suspended matter of the treated water is <1 mg/L [21]. 

ZeeCost is ZENON s proprietary design and costing program for ZeeWeed-immersed membrane systems. Total plant costs were considered, including land to reflect the benefit provided by smaller footprint, except where indicated. While the cost estimations presented in this chapter allow comparing options and drawing conclusions on a relative basis, the absolute precision is considered to be 25%. 

The membrane system used for the MBR is ZENON s ZeeWeed 500d (Crossley et al., 2003). Membrane cassettes containing 48 modules of 31.6 m each (Fig. 7.4a) were arranged into separate membrane tanks, shown in Figure 7.4c (2, 6, 8, and 12 tanks for the four flow rates simulated). The continuous mixed liquor recirculation flow rate between the membrane tanks and the main bioreactor was set at 5 x (2ave to deconcentrate... 

Figure 10.4 Zenon s ZeeWeed 500d submerged HF cassette.

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