. Introduction:
• Co-products of PVC production in Vietnam from coconut shell charcoal activated method at temperatures of 900-1.0000C.
• Effect: de color, odor, heavy metals, organic compounds, pesticides.
2. Technical characteristics:
• Particle size: 1.68 to 3.36 mm (mesh size 6-12), from 2.36 to 4.76 mm (mesh size 4-8)
• Density: 520-550 kg/m3
• type of black beans, dry, loose, angular.
• The basic criteria:
The iodine number: 650 - 850 mg / g
Adsorption of CCl4: 40 - 60%
Benzene: 23 - 33%
Methylene Blue: 130 to 170 ml / g
Hardness:> = 95%
Ash: 2-5%
Humidity: = <6%
PH: 7-8
3. Pros:
• These products are cheap compared to imported goods, quality standards, and can be applied in water treatment works and waste water.
• Time use, depending on the concentration of toxic substances to be processed.
4. Scope of application:
• Removes colors, odors, heavy metals, pesticides and other organic compounds.
5. Recommended use:
• velocity filter depending on the type of toxins to be processed. For example, reducing residual chlorine content: 40m/gio; removal of organic compounds: 6m/gio.
• The thickness of the coal layer is from 0.7 to 0.9 m.
• Sometimes it is necessary to backwash to disturbance and redistribution of the coal layer.
• Need to wash before use.

10kg/bag.