Adsorption effect of porous heterogeneous materials on COD in laboratory wastewater
In this paper,the porous heterogeneous material was prepared by calcomonolite,cetyl trimethyl ammonium bromide,dodecamine and ethyl silicate as raw materials,and porous Montmorillonite heterogeneous material was used as adsorbent to conduct experiment for the adsorption and removal of COD organic matter in laboratory sewage to investigate the removal rate of COD in laboratory wastewater by the synthesized porous heterogeneous materials under different conditions,and through intelligent water quality detection instruments,thermal weight analyzer and other instruments quantitative analysis of the COD removal rate of the porous heterogeneous materials.The results of the experiments showed that,when the molar ratio of organic soil/dodecyeneamine/ethyl orthosilicate is 1∶24∶160,the synthesized porous heterogeneous material has the greatest adsorption effect on sewage;The optimal adsorption conditions are 30g·L-1 of the amount of porous heterogeneous material,pH 5.0 of adsorption mixture,sewage COD concentration of 300mg·L-1,adsorption time of 150min,the removal rate of COD under this condition reached 45%;porous heterogeneous material has stable adsorption and degradation of COD in wastewater,and can be used for multiple times.
NETL
NSTL
万方数据
