BMBW-4040 equivalent Hydranautics CPA5-440

BW series of sea water aromatic polyamide RO element developed by Besta Membrane for brackish water desalination. It can replace FILMTEC™ TW30,Hydranautics CPA5-LD-440,LG RO 4040 etc.This series of elements have the characteristics of low operating pressure, low equipment investment, good desalination performance and stability. Among them, the BM-BW-4040 have the highest desalination rate of 99.8%, which ensure that drinking water can be produced from brackish water  through one pass RO system.

BW series membrane elements are generally suitable for the treatment of   brackish water with high concentration. It can be used for brackish water desalination, desalination of brackish water with high concentration, boiler replenishment water in power plants, wastewater reuse, concentration and recovery of high value-added substances such as food and pharmaceuticals, etc.

Module　    Active Membrane Area       Average Permeate               Stable rejection                  Min rejection          B  rejection

                                 ft2(m2)                                      GPD（m³/d）　　　　           Rate（％）                               Rate（％）               Rate（%）

BM-BW-4040      85（7.9）                                  2600（9.84）                              99.9　　　　　　                      99.75                         92

Test conditions：

Testing pressure                                                                                  225Psi（5.5Mpa）

Testing solution temperature                                                           25℃

Concentration of testing solution                                                     2000ppm NacL

pH value of testing solution                                                              8.0

Recovery rate of Single element                                                       8%

Feed spacer：                                                                                      28mil

Operation limits & conditions：

Max. Working Pressure                                                                                              600psi（8.27Mpa）

Max. Temperature of Feed water                                                                              45℃

Max. Feed water SDI15&nbsp                                                                                     5.0

Max. Feed water Turbidity                                                                                           1.0NTU

pH Range of Feed water during Continuous Operation                                          2～11

pH Range of Feed water during Chemical Cleaning                                                 1～13

Residual Chlorine Concentration of Feed Water&nbsp                                           ＜0.1ppm

Max. Pressure Drop of Single Membrane Element&nbsp                                       15psi（0.1Mpa）

Max. Pressure Drop of Single Pressure Vessel with Six elements&nbsp              50psi（0.34Mpa）