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The Research on Treating Wastewater Containing Aromatic Compounds with Macroporous Adsorption Resin

Author: ZhangHaiZhen
Tutor: WangHuiMin
School: Hohai University
Course: Environmental Engineering
Keywords: Wastewater treatment Adsorption Macroporous resin Aromatic compound
CLC: X703
Type: Master's thesis
Year: 2006
Downloads: 385
Quote: 4
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Abstract


In this paper, XDA-200 macroporous resin adsorption method for wastewater containing aromatic compounds were studied . The resin of the analog aniline , phenol, o- phthalic acid waste processing theory , the results showed that: the concentration of wastewater decreases with time ; resin simulated wastewater in the adsorption amount of the aromatic compound with the initial concentration of the increase , and the linear relationship between the ; temperature conducive resin adsorption of the aromatic compound wastewater ; resin adsorption of aniline with the increase of the pH value at pH 8.0, the highest absorption rate . pH value of 9.0, the adsorption rate decreases instead . The lower the pH , is conducive to resin adsorption of phenol and phthalate ; in a certain concentration , temperature conditions, aniline, phenol, phthalic acid at XDA-200 resin adsorption comply Langmiur model and Freundlieh model ; further study aniline , phenol belong to the preferential adsorption, while phthalates are not preferential adsorption ; concentration and flow rate on the resin adsorption adsorption performance impact ; while desorbent species and desorption desorption properties of the resin flow is also affected. In the systematic study XDA-200 macroporous resin simulated wastewater treatment based on further research on M wastewater treatment . The results show that the resin can be used to handle such waste , so far not been related research. When a control point of leakage COD 200mg / L is obtained when the optimum operating conditions is: When the optimum treatment volume 7BV, the adsorption rate was 3BV / h, pH value of 7.0 to 9.0 , the adsorption temperature is room temperature ; use ethanol as off sorbent flow rate of desorption 1.5BV / h ~ 3.0BV / h. In determining the optimum conditions, the treated water discharge , COD desorption rate ) of 95%. Stability test results show that good performance resin is reused .

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CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization
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