1. Identification of the Material

Product Name: NEWDEF^®1 DEFLUORIDATION MEDIA

Recommended Use: Removal of excessive fluoride in drinking water

2. Material Origin and Physical Properties

Material Origin: Natural Mineral

Physical State: Solid Grain

Color: White

Solubility: Insoluble in water

Bulk Density: 1.33 g/ml

Particle Size: 0.5mm~1.5mm

3. Toxicological Information

Ingestion: No adverse effects expected

Skin contact: Not expected to be a skin irritant

Eye contact: No an eye irritant. No physical irritation

4. Mechanism

Defluoridation mechanism: The binding of fluoride ion to Ca²⁺ on NEWDEF^®1  surface while OH^- will be released

5. Defluoridation Capacity

The defluoridation capacity of NEWDEF^®1  is about 1~4 mg/g which is higher than normal media in the same conditions. The capacity is changed by different raw water quality including fluoride concentration、temperature、co-existing ions etc..

6. Technical Advantages

Ø High capacity and shorter contact time

Ø Safety, no dissolution of toxic and hazardous substances

Ø High efficiency, NEWDEF^®1 can remove 99% fluoride of the raw water. Thereby the treated water could be mixed with the raw water in order to reduce the operating costs and extend the operation cycle.

Ø Steady capacity under other ionic competition

Ø Lower regeneration cost and simple regeneration process

Ø Not only for fluoride removal but also can removal of iron and manganese.

7. Performance Comparison

Figure 1 and Figure 2 demonstrate that the NEWDEF^®1  media have higher performance than other common defluoridation materials under the same conditions. The treated water volume of NEWDEF^® is About 5.09—11.7 times of activated alumina and 12.9—23 times of activated clinoptilolite.

Figure 1．The volume of water treated by different media under the same conditions, the concentration of fluoride is 6mg/L in raw water

Figure 2.  The volume of water treated by different media under the same conditions, the concentration of fluoride is 2mg/L in raw water

8. Regeneration

Sodium hydroxide regeneration: It’s an opposite reaction of defluoridation mechanism. OH^- replace F^- on NEWDEF^®1 surface.