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- Title
改性污泥活性炭对阿莫西林的吸附研究.
- Authors
钟婷婷; 杨灿; 王甜甜; 贺月莛; 刘亚利
- Abstract
Antibiotic wastewater poses a threat to the environment and health,which needs to be solved urgently. The dewatered sludge was used as materials to prepared the activated carbon( SAC) by zinc chloride activation method,and the SAC was modified by nano-titanium dioxide( T-SAC). At the same time,the effects of dosage,p H,adsorption time and initial amoxicillin concentration on the removal performances of amoxicillin by T-SAC were studied. The results showed that the specific surface area of T-SAC was increased by about 6 times than that of SAC due to nano-titanium dioxide modification,and the corresponding average pore diameter was reduced from 10.425 nm to 5.497 nm,which effectively promoted the formation of porous structure. In addition,the optimal adsorption conditions of T-SAC for amoxicillin solution with initial concentration of 30 mg/L were: dosage of 4 g/L,pH of 8,adsorption time of 4 h,and the temperature of 25°C. The maximum removal rate reached 81. 78%,which was enhanced by 10% of SAC. The adsorption kinetics results indicated that the adsorption of amoxicillin by T-SAC reached equilibrium at about 240 min,and the adsorption process was more in line with the quasi-secondary kinetic model.
- Subjects
ADSORPTION kinetics; ZINC chloride; SURFACE area; ADSORPTION (Chemistry); AMOXICILLIN; ACTIVATED carbon
- Publication
Forest Engineering, 2019, Vol 35, Issue 6, p106
- ISSN
1006-8023
- Publication type
Article