POREX 博滤克斯（宝利事）管式膜应用描述-切割 研磨废水循环利用.pdf

F I LT R AT I O N ® POREX Tubular Membrane Filter Modules for Metals Precipitation / Removal Choosing Tubular Membrane Filter Modules (TMF) for Metals Precipitation/Removal Industrial processes can often result in waste water contaminated for either disposal into existing municipal waste systems or further with heavy metals that require treatment prior to discharge or treatment for plant reuse/recycle. Treated effluent levels of less recycling. A treatment system using POREX Tubular Membrane than 1 ppm suspended solids and less than 0.1 ppm metals are Filter Modules in combination with chemical precipitation provides typical. Cleaning of the TMF modules is simple and involves the excellent reduction of heavy metals (nickel, zinc, copper, lead, use of standard chemicals which will allow many years of service. chromium, etc). TMF product water (permeate or filtrate) is ready Designing a TMF system for a Metals Precipitation/Removal Process Figure 1 shows a typical Metals Precipitation application with a filter press for de-wetting or to disposal. The number of Tubular TMF process. The feed water containing dissolved metals is fed Membrane Filter Modules required is dependent upon the total to reaction tank #1 where chemicals are added to enhance metals flow rate of the system needed and the modules are typically precipitation out of solution. The water is then fed to reaction tank placed in series of up to 12 modules. Systems are designed to #2 where additional chemical are added to control pH and further