摘要：

基于实验室制备秸秆-污泥基活性炭和中小城镇生活垃圾双解技术的研究，开发了一套制备水稻秸秆-污泥基活性炭的成套装置，并在最佳条件下制备得到了秸秆-污泥基活性炭。实验结果表明，秸秆-污泥基活性炭主要官能团有—OH、—C=C—、C—O，比表面积为902.6 m²/g，总孔容为0.303 0 cm³/g，微孔容为0.205 0 cm³/g。考察了活性炭对Pb²⁺的吸附效果的影响，结果表明，在吸附时间为200 min、pH为6、活性炭投加量为6 g/L的条件下对Pb²⁺的吸附量为12.79 mg/g，吸附过程符合二级吸附动力学模型。

关键词: 污泥, 秸秆, 活性炭, 吸附Pb²⁺

Abstract:

Based on the laboratory preparation of straw-sludge activated carbon and the 'Double-Solution' technology for municipal solid waste treatment, a set of equipment for the preparation of rice straw-sludge activated carbon was set up, and the rice straw-sludge activated carbon was prepared under the optimized condition by adjusting the parameters. The experimental results showed that the main functional groups of straw sludge based activated carbon were -OH, -C=C-, C-O, specific surface area of 902.6 m²/g, total pore volume of 0.303 0 cm³/g, and micro-pore volume of 0.205 0 cm³/g. The effect of activated carbon on the adsorption of Pb²⁺ was investigated. The results indicated that under the condition of adsorption time was 200 min, pH=6, and the activated carbon dosing mass concentration of 6 g/L, the removal effect of Pb²⁺ was the best, which could reach to 9.79 mg/g, in accordance with secondary adsorption dynamics model.

Key words: sewage, straw-rice, activated-carbon, Pb²⁺ adsorption

中图分类号: 

• X703.1