The reduced activated carbon adsorption capacity needs to be replaced in time. The adsorption capacity of activated carbon decreases, and when replacement is required, the activated carbon filled in the activated carbon adsorption tower must be taken out. With the different structure of various adsorption towers, the operation content of taking out activated carbon is also different.
Generally, the method of sucking the activated carbon into the inside of the activated carbon adsorption tower is adopted to suck the activated carbon, and the activated carbon that is moistened by water can also be used for the phase adsorption. However, when a sand filter layer is laid under the activated carbon, it must be adjusted to such an extent that sand cannot be sucked out. In addition, special vehicles and ready-to-take packaging containers should be prepared before operation (mostly use FIBC). Due to the limitation of the adsorption tower site or the amount of filling, there are occasions when it has to be taken out manually. At this time, the method of opening the manhole of the adsorption tower, picking up activated carbon or taking it out with water in the form of a carbon slurry, and then removing the water in the receiving container is also feasible.
No matter what kind of occasion, according to the condition of the equipment, the most reasonable method should be researched and planned in advance. The cost incurred by this replacement operation is also treated as the operation and management cost of activated carbon, so it is necessary to pay attention. When the operations are performed by experienced operators, not only are there fewer accidents, but they are often short in time and low in cost.
Activated carbon used for absorbing solvents and other occasions, and sometimes there are residual solvents in the activated carbon. Attention must be paid to the management of the kind of fire, and fires must be prevented during transportation. In this case, the tripartite parties should also make clear before using the activated carbon, the active carbon production enterprise, and the personnel who are responsible for the replacement of the carbon.
In addition, the same applies to the situation where the safety of the substances adsorbed on activated carbon must be paid attention to, and it is the responsibility of the user to make the situation clear.
