Method for processing high temperature condensed water by integration technique of membrane
A high-temperature condensate, membrane integration technology, applied in adsorption water/sewage treatment, permeation/dialysis water/sewage treatment, etc., can solve the problems of unstable treatment effect, frequent replacement of adsorbent materials, etc., to achieve stable and reliable effluent quality, beneficial to Long-term stable operation, reduced equipment investment and operating costs
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Example Embodiment
[0032] Embodiment 1 (flow such as figure 1 )
[0033] Pass 50L of steam condensate A at 65°C into the condensate treatment system. The water quality of the steam condensate is shown in Table 1.
[0034] The membrane filtration unit 3 uses a modified polyethersulfone hollow fiber microfiltration membrane with a pore size of 0.8 μm, and the membrane area is 8 m 2 . Adopt as attached figure 1In the dead-end filtration method shown, the membrane filtration unit 3 is a modified polyethersulfone hollow fiber microfiltration membrane, which is placed in a high-temperature condensed water storage tank 1, and powered by a suction pump 2 connected to the permeable side of the membrane, The operating pressure is 0.02MPa, and under this condition, the stable flux through the microfiltration membrane is 0.5m 3 / 11, the quality of membrane filtration water is shown in Table 1.
[0035] The membrane permeate water from the membrane filtration unit 3 is pumped by the pump 2 and sent to t...
Example Embodiment
[0039] Embodiment 2 (flow such as figure 2 )
[0040] Pass 50L, 80°C steam condensate A into the condensate treatment system, and the water quality of the steam condensate is shown in Table 1.
[0041] Membrane filtration unit 3 uses a 19-channel tubular ceramic microfiltration membrane with a pore size of 200nm, with a membrane area of 0.5m 2 . Adopt as attached figure 2 In the dead-end filtration method shown, the membrane filtration unit 3 is a multi-channel tubular microfiltration membrane made of zirconia material, which is communicated with the high-temperature condensed water storage tank 1, and is connected by a centrifugal pump connected between the high-temperature condensed water storage tank and the membrane inlet. 2 Provide power, the operating pressure is 1.2MPa, and the average flux of the microfiltration membrane under this condition is 1.7m 3 / h, when the membrane flux drops to 0.5m 3 / h, backwash the permeate side of the ceramic membrane with compres...
Example Embodiment
[0046] Embodiment 3 (flow such as image 3 )
[0047] The steam condensate A of 50L and 95°C was passed into the condensate treatment system. The water quality of the steam condensate is shown in Table 3.
[0048] Membrane filtration unit 3 uses a 19-channel tubular ceramic ultrafiltration membrane with a pore size of 20nm and a membrane area of 3m 2 . Adopt as attached image 3 In the cross-flow filtration mode shown, the membrane filtration unit 3 is a multi-channel tubular ultrafiltration membrane made of alumina material, which is communicated with the high-temperature condensed water storage tank 1, and is connected to the high-temperature condensed water storage tank and the membrane inlet by a centrifugal filter. The pump 2 provides power and the operating pressure is 0.35MPa. The high-temperature condensed water in the liquid storage tank 1 is sent to one side of the ultrafiltration membrane of the membrane filtration processing unit 3 through the pump 2, and the ...
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