Removal study of chromium (VI) in aqueous media from tanning industrial wastewater by using silicon-organic polymer

Илтгэсэн хурлын нэр: 5th International Conference “Chemistry and Clean Energy - 2013” on School of Chemistry and Chemical Engineering, NUM

Илтгэгч:  Н.Наранцогт

Хамтран илтгэгч:

Илтгэсэн огноо: 2013-09-27

Илтгэлийн хураангуй:

“Hargia” wastewater plant is facilitated by old equipment therefore plant cannot purifying the chromium in tanning industrial wastewater polluted by chromium (VI), which has a serious effect on the environment and human health. In order to remove low content heavy metals from aqueous media novel method such as adsorption which is economically beneficial, no effect of matter’s biogeochemical cycle in the environment, and provides the opportunity to remove metals selectively is needed.

Recently uses of new adsorption materials is widely used for removal of heavy metals. Silicon-organic polymer is known as adsorption materials which have the unique characteristics such as selectivity, efficiency and tolerance in acidic solution.

In this research the possibility of uses as an adsorbent material for removal hexavalent chromium, its absorption mechanism and absorption process kinetics, thermodynamics and equilibrium were studied. Adsorption capacity of chromium(VI) onto silicon-organic sorbent containing thiocarbamide (-HN-C(S)-NH-) group, which named poly[N,N’-bis(3-silseskquioxanilpropyl) thiocarbamide] (PSTM-3T) was investigated in  a  batch  system   by considering the effects of various parameters like contact time, initial concentration, pH and temperature. It was revealed  that this porous absorbent material has a functional group containing   N  and  S  atoms therefore heavy metal ions in large amount of diluted solutions of contaminated water, the metal ion bonded by coordination bond and removes the metal contamination.