Bone Char 8x24 Mesh (coarse granular bone charcoal) is a unique carbonaceous adsorbent manufactured from the treatment and carbonization of selected grades of animal bone and is used for liquid phase filtration to remove organic and inorganic species such as color bodies and many heavy metals. Can be used in numerous bone char water filter designs and in combination with standard granular activated charcoal filters.
SPECIFICATIONS
| US Standard Mesh Size | 8 X 24 |
| Greater than 8 | 5% maximum |
| Less than 24 | 5% maximum |
| Surface Area (BET N2) | 200 m2/gm |
| Hardness Number | 80 minimum |
| Moisture | 5% maximum as packed |
| Bulk Density (lbs/ft3) | 40 typical |
| Acid Soluble Ash | 3% typical |
| pH | 8 - 10 typical |
All of the above test methods are performed using ASTM protocol for granular activated carbon.
Packaged in 50-pound bags or 1100-pound super sacks.
This information has been gathered from the manufacturer and/or test data, and is assumed to be accurate and reliable.
BuyActivatedCharcoal.com only warrants that this product will meet the above described published specifications and makes no other warranties of any kind either expressed or implied including but not limited to fitness for a particular purpose or application. Buyer assumes all liability and risk that may arise from the use of this product.
NOTICE
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Due to the varied nature of treatment and operational procedures, we regret that we cannot make any reduction claims or warranty.
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Bonechar - Removal Efficiency Index of Heavy Metals
| Metal |
Capacity (mg/g) |
Linear Velocity (m3/hr) |
Removal Efficiency (%) |
| Aluminum | 24 | 1 | > 80 |
| Arenic III | 30 | 0.5 | > 80 |
| Arsenic V | 26 | 0.5 | > 80 |
| Cadmium | 15 | 0.5 | > 80 |
| Chromium III | 15 | 0.5 | > 80 |
| Chromium IV | 8 | 0.5 | ≈ 50 |
| Copper | 50 | 3 | > 90 |
| Iron | 30 | 3 | > 80 |
| Lead | 151 | 3 | > 90 |
| Manganese | 50 | 3 | > 80 |
| Mercury | * | 0.5 | ≈ 50# |
| Nickle | 45 | 3 | > 90 |
| Silver | * | 0.5 | ≈ 50# |
| Zinc | 37 | 3 | > 90 |
* Undetermined capacity due to the nature of adsorption, does convert to pure metal from which recovery may be possible.
* Highly dependent on other species in the stream.
* All figures are subject to ongoing research and updating.
*Figures courtesy of Glasgow University, UK
Bone Char
ADSORPTION of METALS
| ALUMINUM | Very effective in removing soluble aluminum. Adsorption influenced by pH and retention time. Best results at ph 7 or above. |
| ARSENIC | Largely dependent upon form of arsenic (ie. AsIII or AsV). pH has considerable influence. At low pH almost no adsorption occurs. Affected by Protonation. |
| CADMIUM | Bone char is better than conventional precipitation and/or coagulation processes. Superior results in soft water. Retention time on par with aluminum. |
| CHROMIUM | Much dependent upon form present, ie. cation or anion, and valency (chrome III or chrome VI). Chrome III adsorbs well. |
| COPPER | Adsorption dependent upon pH and retention time. |
| IRON | Dependent upon form of iron. Better results with organic iron than with inorganic. Inorganic results dependent upon valency. Short retention times suffice. |
| LEAD | Very effective with short retention time (ie. 1 minute or less) |
| MANGANESE | Very effective. Pilot results good. Competition from other methods of oxidation. |
| MERCURY | Best with organic mercury. Inorganic mercury is dependent upon valency (mercury I and II). Although similar, the higher charged monatomic mercury II has a greater affinity for Bone Char than mercury I. |
| NICKEL | Adsorption best at higher pH. Requires high retention time. At 5 pH almost no adsorption. |
| SILVER | Quite rapidly adsorbed. Better at low concentrations in solute. High deposits of silver on bone char inhibit adsorption. Adsorption better at pH 5. |
| ZINC | Efficiency dictated by contact time and pH. Both pilot plant and full scale plant performance good. |
| BROMINE | Bone Char is effective in removing free bromine. Bromine form is important too. In presence of potassium and sodium adsorption decreases. |
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CHLORINE CHLORAMINES |
Bone Char is minimally effectively in reducing chlorine or chloramine. |
| COLOR | Retention time required is usually about 6 – 15 minutes, dependent upon chemical make up of color. Can be used in slow sand, rapid gravity or pressure filters. |
| FLUORIDE | Adsorption onto Bone Char is good, but influenced by pH – better at 6.5 or lower. Concentrations of fluoride present also influences performance. Activated carbons do not effectively adsorb fluoride. |
| PESTICIDES | Good at removing organo-chlorine pesticides (ie. Dieldrin, septachlor, etc.). not very good at atrazine, etc. |
