制红霉素废渣吸附水中Pb2+的试验研究

以某制药公司制红霉素废渣为生物吸附材料，对模拟含Pb²⁺废水进行了吸附试验，并进行了吸附过程热力学分析。结果表明：氢氧化钠改性可明显提高制红霉素废渣的吸附能力；用经氢氧化钠改性的制红霉素废渣处理初始浓度为11.8 mg/L的模拟含Pb²⁺废水的适宜条件为室温、溶液pH=3.5、吸附时间15 min、废渣用量2 g/L；Langmuir等温方程可以很好地描述制红霉素废渣对Pb²⁺的吸附行为。

Experimental Research on Adsorption of Pb2+ by Erythromycin Pharmaceutical Waste Residues

The erythromycin pharmaceutical waste residues discharged from one pharmaceutical company was used as a biosorbent to simulate the absorption tests of Pb²⁺. And the thermodynamic analysis on the adsorption process was carried out. The results showed that the modification of sodium hydroxide significantly improved the adsorption capacity of the erythromycin waste residues；The erythromycin waste residues modified by sodium hydroxide was used to treat the Pb²⁺ wastewater with the initial concentration of 11.8 mg/L, obtaining the appropriate conditions are solution pH=3.5, adsorption time 15 min and the dosage of residues 2 g/L at room temperature. Langmuir isotherm equation can well describe the adsorption behavior of erythromycin residues to Pb²⁺.