Activated carbon is being used in a batch process to remove pesticides from a rural water supply. After each batch of water is treated, the carbon particles are allowed to settle, the water is drained off, and a new batch of water is mixed with the carbon. The adsorption is known to follow a Langmuir isotherm. After a number of batches of water have been treated in this way, the adsorption density on a sample of the activated carbon is given by: q ¼ (qmax/Kadscin)/ (1 + Kadscin), where cin is the pesticide concentration in the untreated influent water. The value of q under these circumstances is much less than qmax. Do you think that the removal efficiency of pesticide in the next batch of water to be treated will be good or poor? Explain briefly.
Activated carbon is being used in a batch process to remove pesticides from a rural water supply. After each batch of water is treated, the carbon particles are allowed to settle, the water is drained off, and a new batch of water is mixed with the carbon. The adsorption is known to follow a Langmuir isotherm. After a number of batches of water have been treated in this way, the adsorption density on a sample of the activated carbon is given by: q ¼ (qmax/Kadscin)/ (1 + Kadscin), where cin is the pesticide concentration in the untreated influent water. The value of q under these circumstances is much less than qmax. Do you think that the removal efficiency of pesticide in the next batch of water to be treated will be good or poor? Explain briefly.
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