Zealite is a natural ion exchange resin that has demonstrated the properties of absorbing nitrates and phosphates. The literature is not clear on the absorption rates. Any clarification on this would be appreciated.
Karapnar N. Application of natural zeolite for phosphorus and am-
monium removal from aqueous solutions // Journal of Hazardous
Materials. – 2009. – V. 170. – No 2–3. – P. 1186–1191.
Hamdi N., Srasra E. Removal of phosphate ions from aqueous solu-
tion using Tunisian clays minerals and synthetic zeolite // Journal of
Environmental Sciences. – 2012. – V. 24. – No 4. – P. 617–623.
These are good studies:
Gupta et al., Removal of ammonium ions from wastewater - A short review in development of efficient methods, Global J. Environ. Sci. Manage., 1(2): 149-158, Spring 2015. DOI: 10.7508/gjesm.2015.02.007
Onyango et al., Adsorptive Removal of Phosphate Ions from Aqueous Solution Using Synthetic Zeolite, Ind. Eng. Chem. Res. 2007, 46, 894-900. DOI: 10.1021/ie060742m
The results obtaine in this way, expressed through uptake rate curves, showes that the adsorption rates are strongly dependent on the parameters studied. On comparing the adsorption rates among the adsorbents (commercial 3A zeolites), it can be concluded that, under the same operational conditions, exists a pronounced difference among them.
In an experimental determination of the adsorption capacity of water in synthetic
Zeolite A,produced from a Nigerian clay (kankara), determined at different Zeolite temperatures and water vapor pressures for use in an adsorption cooling system is presented .0.2kg of synthetic Zeolite Ais tested at adsorption temperatures in a range of 40 to 150°C and water vapour pressures in the range 36 to 40 kPa. Experimental result obtained show that the maximum adsorption capacity of synthetic Zeolite A prepared from kankara clay is nearly 0.258 kgad/kgw for Zeolite temperatures and water vapor pressures in the range 40 to 150°C and 36 to 40 kPa and that the adsorption capacity is a weak function of the water vapor pressure at high Zeolite temperatures.
http://www.academicjournals.org/journal/JMER/article-full-text-pdf/35834C45647
Dear Calt,
You may like to check the below articles out to find an answer for your question.
Cordially.
Article Protective Effect of Clinoptilolite on Lead Toxicity in Comm...
Article Removal of ammonia nitrogen from leachate of Muribeca munici...
These are all good studies. Here (a link attached) is one recent article where geopolymer (amorphous analogue of zeolite) was used for ammonium removal.
I might also add that nitrate (anion) is not removable with zeolites which are cation exchangers.
http://dx.doi.org/10.1016/j.clay.2015.10.027
- Badges
- Science topic
- Similar topics
- Instrumentation Engineering
- Instruments