文档介绍：Adsorption parison among three filter
media for phosphorus
Junling Wang, Yajun Zhang, Cuimin Feng, Huizhen Wang, Lihua Wang
School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing100044,
China
Abstract- Experiments on adsorption for phosphorus by activated pollutants removal, but the performance for phosphorus
carbon, zeolite and ceramisite were conducted. The results show removal in drinking water has not been unveiled. It is worth
that adsorption capacity order of three filter media from high to experimenting and confirming the efficiency to remove or
low is activated carbon, zeolite and ceramisite. Influential factors adsorb phosphorus in water, moreover, application possibility
which affect the adsorption capacity were surveyed. According of these filter media should be verified.
to the analysis, the first factor is that surface isoelectric point pH
of activated carbon is more than 7, but that of zeolite and II. EXPERIMENTAL MATERIALS
ceramisite both are less than 7, therefore the activated carbon
adsorbs anion phosphate easily. The second factor is related to A. Experimental material
the micropore in the adsorbent, the micropore size of activated Three adsorbents involved in these experiments including
carbon is less than 5nm, and that of zeolite is much less than that granul