POREX 博滤克斯（宝利事）管式膜应用描述-石灰软化 RO浓水回用.pdf

F I LT R AT I O N ® POREX Tubular Membrane Filter Modules for Lime Softening / RO Reclaim Choosing Tubular Membrane Filter Modules (TMF) for RO Reject Reclaim Typical process water systems use RO (Reverse Osmosis) Using a TMF system coupled with lime softening will reduce technology as the method of decreasing the level of ions in scaling and enhance the operation of the 2nd RO. Lime softening process water. RO recovery rates normally range from 75- along with TMF provides very efficient softening, silica reduction 80%, therefore 20-25% of the RO feed water is discharged and solids removal within a single process scheme. as wastewater. With the increasing cost of water and waste Using this treatment technique, recovery rates can be greater discharge, more companies are looking to recover and reuse than 95% while assuring substantial reduction of scaling to the RO reject water. RO units. This is an efficient and cost effective method for either While it is possible to reuse the reject water from an RO by retrofitting existing RO systems or incorporating it into newly feeding it directly into a 2nd RO unit, the likelihood of scaling designed systems. or fouling the 2nd RO without pretreatment is rather high. Designing a TMF System for RO Pretreatment or RO Reject Reclaim RO Pretreat