Abstract:
A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 μm existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion exchange groups are uniformly distributed, and an ion exchange capacity is not less than 0.5 mg equivalent/g of dry porous ion exchanger. The porous ion exchanger can be used as an ion exchanger filled into a deionization module of an electrodeionization water purification device, solid acid catalyst, adsorbent, and filler for chromatography.
Abstract:
THE SPECIFICATION DESCRIBES THE USE OF A PARTICULATE ION EXCHANGE MATERIAL FOR THE PURIFICATION OF WASTE EFFLUENTS, SUCH AS WASHINGS OBTAINED FROM SLAUGHTER HOUSES, WHICH CONTAIN PROTEIN OR FAT, OR BOTH. THE USE OF THE MATERIAL CAN PROVIDE EFFLUENT, WITH A SUFFICIENTLY LOW CONTAMINATION LEVEL FOR IT TO BE READILY DISPOSED OF, OR EVEN REUSED FOR FURTHER CLEANING PURPOSES. BY SUITABLE ELUTION OF THE MATERIAL, THE PROTEIN OR FAT CAN BE RELEASED AND ISOLATED FOR USE, FOR EXAMPLE, AS ANIMAL FOOD. THE ION EXCHANGE MATERIAL CAN BE REGENERATED FOR REUSE.