Page 58 - Vol.27

Tech
Notes
技術專文

圖 3、DOW HRLE-440 IPA 去除效率

Product Specifications
Active area Feed spacer Permeate flow rate Stabilized salt Minimum salt
Product Part number ft (m ) thickness (mil) gpd (m /d) rejection (%) rejection (%)
3
2
2
HRLE-440i 347733 440 (41) 28 12,650 (48) 99.5 99.3

Typical Stabilized Rejections for Individual Solutes
Silica Boron Nitrate Ammonium Isopropyl alcohol
rejection (%) rejection (%) rejection (%) rejection (%) rejection (%)
99.8 68 97 97.5 94

1. Permeate flow and salt (NaCl) rejection based on the following standard conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8 and 15% recovery.
2. Flow rates for individual elements may vary but will be no more than 15% below the value shown.
3. Sales specifications may vary as design revisions take place.
4. Active area guaranteed +/-3%. Active area as stated by Dow Water & Process Solutions is not comparable to nominal membrane area often stated by some
manufacturers. Measurement method described in Form No. 609-00434.
5. Specific solute stabilized rejections based on the following standard test conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 7 and 15% recovery,
50 ppm SiO2, 5 ppm B, 100 ppm NO3 , 100 ppm NH4 + , or 100 ppm IPA.
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圖 4、台中廠區本次 demo 專案系統流程圖

AORI 收集槽

900 CMD RO 產水
250 mg/L 765 CMD
15 mg/L
收集槽 RO 膜 中繼槽 UV 供水槽 RCW
RO 濃縮水 RO 產水
135 CMD 114 CMD
1581 mg/L 94.86 mg/L
RO 產水
收集槽 RO 膜
RCW
RO 濃縮水
21 CMD
9648 mg/L
排放槽 生物處理系統

表 1、台中廠區 AORI+AOR 水質

系統編號 P5A AORI P5B AORI
水質項目 雙氧水 pH 導電度 COD 雙氧水 pH 導電度 COD
Date ppm μS/cm ppm ppm μS/cm ppm

02月17日 0.5 8.50 15.27 0.5 6.68 8.10
02月22日 4.0 7.61 18.32 765 0.5 7.19 8.83 1056
02月24日 0.5 8.22 17.26 570 3.0 7.78 8.94 6770

02月28日 5.0 8.30 17.03 795 7.0 7.39 11.88 1175
03月03日 4.0 8.16 16.41 511 0.0 7.66 12.55 590
03月06日 8.0 7.60 17.71 819 13.0 7.38 12.24 903

03月08日 7.0 8.56 14.55 664 3.0 8.69 13.40 1168
03月10日 3.0 8.15 11.23 425 0.0 7.93 9.81 578

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