[Baker, H.M., Massadeh, A.M., Younes, H.A. (2009) Natural Jordanian zeolite: removal of heavy metal ions from water samples using column and batch methods, Environmental Monitoring and Assessment, 157, p.319-330. ]Search in Google Scholar
[Gunay, A., Arslankaya, E., Tosun, I. (2011) Lead removal from aqueous solution bz natural and pretreated clinoptilolite: Adsorption equilibrium and kinetics, Journal of Hazardous Materials, 146, p.362-371. ]Search in Google Scholar
[Ismael, I.S., Melegy, A., Kratochvil, T. (2012) Lead removal from aqueous solution by natural and pretreated zeolites, Geotechnical and Geological Engineering, 30, p.253-262. ]Search in Google Scholar
[Payra, P., Dutta, P.K. (2003) Handbook of zeolite . Science and technology, Marcel Dekker Inc., New York. 10.1201/9780203911167.pt1]Search in Google Scholar
[Rusu, T., Rusu, A., (2009). Purificarea Apelor Reziduale cu ajutorul Schimbătorilor de Ioni Naturali, ProEnvironment, 2, p.251-255. www.proenvironment.ro ]Search in Google Scholar
[Shaheen, S.M., Derbalah, A.S., Moghanm F.S. (2012) Removal of heavy metals from aqueous solution by zeolite in competitive sorption system, International Journal of Environemtal Science and Development, 3 (4), p.362-367. ]Search in Google Scholar
[Seliman, A.E., Borai, E.H. (2011) Utilization of natural chabazite and mordenite as a reactive barrier for immobilization of hazardous heavy metals, Environmental Science and Pollution Research, 18, p.1098-1107.]Search in Google Scholar
[Singh, A., Sharma, R.K., Agrawal, M., Marshall, F.M. (2010) Health risk assessment of heavy metals via dietary intake of foodstuffs from the wastewater irrigated site of a dry tropical area of India, Food and Chemical Toxicology, 48, p.611-619.]Search in Google Scholar
[Wang, S., Peng., Y. (2010) Natural zeolites as effective adsorbents in water and wastewater treatment, Chemical Engineering Journal, 156, p.11-24. ]Search in Google Scholar
[Wang, Q., Zhao, H.H., Chen, J.W., Gu, K.D., Zhang, Y.Z., Zhu, Y.X., Zhou, Y.K., Ye, L.X. (2009) Adverse health effects of lead exposure on children and exploration to internal lead indicator, Science of the Total Environment, 407, p.5986-5992. ]Search in Google Scholar
[Wang, X., Sato, T., Xing, B., Tao, S. (2005) Health risk of heavy metals to the general public in Tianjin, China via consumption of vegetables and fish, Science of the Total Environment, 350, p.28-37. ]Search in Google Scholar
[Yi, Y., Yang, Z., Zhang, S. (2011) Ecological risk assessment of heavy metals in sediment and human health risk assessment of heavy metals in fishes in the middle and lower reaches of the Yangtze River basin, Environmental Pollution, 159, pp.2575-2585. www.arixinternetteam.com 10.1016/j.envpol.2011.06.01121752504]Search in Google Scholar
[www.buyagreenhouse.com ]Search in Google Scholar
[www.clinolit.ro ]Search in Google Scholar
[www.lenntech.pl ]Search in Google Scholar
[Government Decision no.188 from 20.03.2002 amended by Government Decision no.352 from 11.05.2005, publihed in Official Gazette no.398 from 11.05.2005. ]Search in Google Scholar
[Law no.458/2002, amended by Law no.311/2004, published in Official Gazette no.552, Part I from 30.06.2004]Search in Google Scholar