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| LAJU AQUA ... in the water treatment industry |
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 Coconut Shell Based Activated Carbon is a medium activity carbon is used mainly in various water treatment applications, usually in fixed bed adsorbers. The carbon has high de-chlorination properties when compared to coal based carbon. It also exhibits increased capability to adsorb trihalomethanes or THMs and methyl tertiary butyl ethers or MTBEs, and other disinfectants when compared to coal based carbon because of its abundance of micropores. The carbon is widely used in Soft Drinks Bottlers, brewers and water treatment companies.
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| Iodine No |
1000 - 1500 mg/g |
ASTM D4607-94 |
| CTC (CCL4) activity |
50 - 100% |
ASTM D3467-88 |
| Apparent Density |
0.45 to 0.55 g/cc |
ASTM D2854-96 |
| Ball Pan Hardness |
95 - 98% |
ASTM D3820-79 |
| Moisture Content |
< 5% |
ASTM D2867-99 |
| ASH Content |
< 3% |
ASTM D2866-94 |
| pH Value |
6 to 11 |
JIS K1474
ASTM D2862-82 |
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| Particle Size Distribution |
| 4x8 USS, 6x12 USS, 8x16 USS, 12x30 USS, 20x40 USS, 40x100 USS : |
| Mesh |
over size (+4, +6, +8, +12, +20, +40) |
< 5% |
| Mesh |
size in the range (4-8, 6-12, 8-16, 12-30, 20-40, 40-100) |
> 90% |
| Mesh |
under size (-8, -12, -16, -30, -40, -100) |
< 5% |
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| 70x325USS : As reported |
| Notes: - The typical analysis are the average analysis figures based on previous year's production, and may fluctuate due the base material. |
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Applications
- Dechlorination
- Ozone removal
- Removal of THMS and MTBES
- Removal of taste and odours
- Elimination of pesticides and other dissolved pollutants
- Protection of RO membrane and resins
Advantages
Pore structure
Each starting carbonaceous material possesses inherent properties for forming different size range of internet pores. Generally, peat and lignite tend to form relatively large pores. Coal-based carbons tend to form wide ranges of pores sizes.
Because coconut shell Coconut shell carbons have much higher pore volume in the microporous region and slightly lower in the macropores region.
- Selected pore structure for maximum adsorption
- Excellent backwash characteristics
- Can be regenerated
- Efficient dechlorination properties
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