environmental modification
2.The purposes of this are to identify the significant environmental modification, and to estimate the probability that the impact will occur.
3.From the aspect of modification of vermiculite and adsorptive characteristics of environmental pollutants, this article has systematically summarized the pillared method and modification of vermiculite, the distribution of organic pillared agent in the interlayer of vermiculite, the pillared mechanism of vermiculite and the characteristics of vermiculite adsorbing heavy metal ions and toxic organic pollutants.
4.The results indicate that when the pH is 6~8, the stirring rate is 160 r/min, the modification concentration is 2.0% and the adsorption time is 30 min, the rate of removing is more than 90%, which offers a new kind of environmental protection material for treating wastewater, open up a new way for empoldering and applying nature zeolite.
