Study On The Treatment Of Organic Compounds In Wastewater By Macroporous Adsorption Resins

Macroporous resin have good adsorption effect of organic matter in wastewater,because macroporous resins have different pore diameters and polarities,the appropriate macroporous resin models can be selected based on the molecular structure and polarity of the organic matter in the wastewater.By LS-1,8,9,11 four kinds of static adsorption on macroporous resin cyanurate found LS-9 Adsorption of preferably cyanurate.The effects of temperature,pH,salinity and cyanuric acid concentration on the adsorption of LS-9 resin were investigated.It was found that the adsorption of cyanuric acid was better at room temperature,pH = 4 and the mass fraction of sodium chloride was 5.64%.In order to increase the amount of cyanide wastewater treated by the resin,two new methods have been used.One is eutectic,cyanuric acid prepared by cyanuric acid-cyanuric acid eutectic,reduce the concentration of cyanuric acid,resin treatment of wastewater capacity increased by 10.8 times.The other is cyanuric acid into cyanuric acid metal salt precipitation,resin treatment wastewater capacity increased by 2.6 times.Both of these methods can effectively improve the amount of cyanide wastewater treated by the resin.By LS-1,8,9,11 four kinds of static adsorption on macroporous resin dichloromethane and chloroform,methylene chloride and chloroform found that adsorption of preferably LS-1.The effects of temperature,the concentration of dichloromethane and chloroform on the adsorption of resin were studied.It was found that the adsorption effect of resin at room temperature was higher at room temperature and chloroform concentration.Finally,LS-1 resin was used to dynamically adsorb methylene chloride and chloroform.The saturated adsorption capacity of LS-1 resin to dichloromethane and chloroform was 1.53 g/g and 2.57 g/g.By LS-1,8,9,11 four kinds of static adsorption on macroporous resin phenol,preferably LS-8 was found phenol adsorption.The dynamic adsorption of phenol by LS-8 resin gave the resin adsorption capacity of 0.12 g/g.The LS-8 resin was used to treat the wastewater produced by the plant salicylic acid,and the resin was treated with 9.3L/g of the plant wastewater.