1. Physical characteristics

- Polystyrene particle is sphere, white, lighter than water

- Tangential plane area: 600 m2/m3 (drop 3-5mm); 1.150 m2/m3 (drop 2-3mm)

2. Application area

- Treat underground water: deoxidize iron, mangan

- Treat saline water: deoxidize floating elements, alluvium

- Treat waste water: organic individual

3. Use instruction for underground water

- Source water with high iron content (15 - 40mg/l): at first, using oxidization tower or ejector for adding more oxy; if necessary, adding chemicals to increase pH degree, then filtering through 2 phases: raw filter by floating materials and refine by sand filter stick.

- Source water with iron level less than 15mg/l: at first, using oxidization tower or ejector to add more oxy; if necessary, adding chemicals to increase pH degree, then filtering through 2 phases like the above case (Fe = 10-15mg/l), or just filter by 1 phase (Fe

- Source water with mangan content < 5mg/l: after using in 2 weeks - 1 month, when particle surface has a layer of yellow brown iron oxide, or black brown mangan oxide, particles become catalyst in iron and mangan oxidization every effectively. Hence, it is better for longer using.

4. Use instruction for salt water

- Low opaque degree water (< 100 NTU): use filter particle 2-3mm, minimum filter material layer 1m

- Source water with opaque degree from 100-300 NTU: use 1.5 - 2mm, 1m thick

- Source water with opaque degree > 300 NTU: recommendation for not using.

5. Use instruction for waste water

- Be biological individual for treatment process of xybionic, anti-air which are often attached: use particle 3 - 5mm

6. Cleaning

- When water quality is bad, it must wash and filter by let out 1m water over the material layer (use raw water, not need to pump for filtering). Then, repeat the filter process.

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