Suitability of recycled paper mill sludge as adsorbent for ammonia treatment
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Date
2019-06
Authors
Siti Nur Fatihah Binti Mohd Basri
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Abstract
Ammonia gas is a highly reactive and soluble gas alkaline gas which can be
hazardous if it is were to release to in large quantity. Ammonia gas should be treated as
it brings tremendous impact on environment. This can be done by treating the by-product
of the factory using activated carbon before releasing it to atmosphere. In this study, the
treatment method used for ammonia removal is chemical and physical activated carbon
from RPMS. RPMS is by-product from papermaking factory which is ideal to use as low
cost production adsorbent as it contain high carbon. The effectiveness of the physical and
chemical activated carbon of adsorption capacity of this activated carbon are based on
effect of impregnation ratio, temperature and time. The chemical activated carbon use
KOH as activation agent. In order to determine the adsorption capacity of the activated
carbon, iodine number test has been conducted. The optimum condition for chemical
activated carbon is 700 °C, impregnation ratio of 1.0 at 60 minutes. Meanwhile, the
optimum condition for physical activated carbon is 500 °C at 60 minutes. Next, the
adsorption ammonia also was investigated. Chemical activated and physical activated
carbon both have quite similar result for removal of lower concentration ammonia which
is 50 ppm.