A wastewater containing 150 mg/l chlorobenzene is treated in alaboratory adsorption unit using a PVC column, 1.0 inch internaldiameter, to an effluent concentration of 15 mg/l . Service times,and throughput volumes at specified depths and flowrates associatedwith a breakthrough concentration of 15.0 mg/l are given in table1.
table1 : result of adsorption column experiment
Loading rate,gpm/ft2Â Â Bed depth,ftThroughput volume, gal Time, hr
loading rate gpm/ft2 | bed depth ft | throughput volume, gal | time, hr |
| 2.5 | 3.0 | 810 | 980 |
| 5.0 | 1750 | 2230 |
| 7.0 | 2910 | 3440 |
| 5.0 | 3.0 | 605 | 420 |
| 5.0 | 1495 | 1000 |
| 9.0 | 3180 | 2185 |
| 7.5 | 5.0 | 1183 | 452 |
| 9.0 | 2781 | 1075 |
| 12.0 | 4000 | 1564 |
1) is the attainable effluent concentration satisfactory from aregulatory standpoint?
2) determine the Bohart-Adams constant ( K,N0 andx0) for each hydraulic loading.
3)base on data derived above design an adsorption column 2.0 ftinternal diameter to treat a wastewater flow 5,000 gal/d containing150 mg/l of CB. The attainable effluent concentration is 15 mg/land it is desired to operate the column for 90 days(8 hourslday,7days/week) before reching exhaustion.
4)calculate the yearly carbon requirements in cubic feet.
what kind of information do you need? these are all what i gotfrom paper
