Study On Emergency Disposal Materials And Equipment Of Copper Pollution In Water

The frequency of sudden water pollution has been growing recently, bringingserious damage to the society. Adsorption is one of the common processing methods.However, due to the high resistance and low flux of traditional adsorption devices in thelarge flow of rivers and open channels, they were difficult to meet the applicationconditions. To solve this problem, this study chose Cu2+as the research object todevelop new emergency treatment with the low resistance and high flux.The materials were studied in the kinds of granule and fiber. The results showedthat amygdaline shell activated carbon and001*7resin were chosen in the kind ofgranule, and the maxium capacity of them were5.48mg/g and85.46mg/g, respectively.And the time to achieve the balance was60min and20min, respectively. Strong acidcation exchange fiber was chosen in the kind of fiber, and the maxium capacity was89.44mg/g. And the time to achieve the balance was30min. Besides it, this studyutilized the microwave in the amidoximation of PAN. After the orthogonal test, thepreparation conditions were optimized: microwave power was590W, irradiation timewas20min, mole ratio was1:3. And the adsorption capacity of the production was2mg/g when pH in the reaction was7. Compared with the production by the traditionmethod, the reaction time was greatly decreased. And this study investigated the effectcaused by stock time for001*7resin and strong acid cation exchange fiber. The resultsshowed that one-month stock did not affect the removal effect of the materials.According to the different features of the materials, some emergency devices,including the cage boxes, filter bags, chip-type devices and string-type devices, weredesigned and developed. And this study investigated the effect caused by relative angle,the filling factor, the density of array and linear velocity for resistance and removaleffect. The results showed that if linear velocity was bigger but the filling factor wassmaller, then the adsorption rate of filter bags would be faster. If the density of arraywas bigger, then the removal effect was better, but the local resistance coefficient wasalso bigger. It seemed that the good removal effect and the small local resistancecoefficient cannot be obtained at the same time. The local resistance coefficient ofstring-type devices was small, but the removal effect was good.Finally, there was comprehensive evaluation of these devices in the performance ofremoving effect, local resistance coefficient and economic cost. This can support thetechnology and economy frame for the study on t he materials and equipment ofemergency disposal.