CAJ | 학술논문

采用 NaOH 处理过的棉花秸秆去除废水中的 Pb2+和 Cu2+，探究不同因素对 Pb2+、Cu2+的吸附效果的影响，确定最佳吸附工艺条件。结果表明，Pb2+最佳吸附条件为：投加量为33.33 g/ L，振荡时间为110 min，吸附温度为25℃，溶液初始浓度为15 mg/ L， pH 值为5.0，去除率达92％；对 Cu2+的最佳吸附条件为：投加量26.67 g/ L，振荡时间为110 min，吸附温度为55℃，溶液初始浓度为15 mg/ L，pH 值为5.0，去除率达90.4％。
채용 NaOH 처리과적면화갈간거제폐수중적 Pb2+화 Cu2+，탐구불동인소대 Pb2+、Cu2+적흡부효과적영향，학정최가흡부공예조건。결과표명，Pb2+최가흡부조건위：투가량위33.33 g/ L，진탕시간위110 min，흡부온도위25℃，용액초시농도위15 mg/ L， pH 치위5.0，거제솔체92％；대 Cu2+적최가흡부조건위：투가량26.67 g/ L，진탕시간위110 min，흡부온도위55℃，용액초시농도위15 mg/ L，pH 치위5.0，거제솔체90.4％。
The cotton stalks modified by sodium hydroxide were used to absorb Pb2 + and Cu2 + in wastewater,then the adsorption behavior was investigated and the optimum adsorption conditions were determined. The results showed that the best adsorption conditions of Pb2 + were the dosage 33. 33 g/ L,adsorption time 110 min,the temperature 25 ℃,solution initial concentration 15 mg/ L,and pH 5. 0,the maximum removal rate of Pb2 + is 92% . The best adsorption conditions of Cu2 + were the dosage 26. 67 g/ L,adsorption time 110 min,the temperature 55 ℃,solution initial concentration 15 mg/ L, and pH 5. 0,the maximum removal rate of Cu2 + is 90. 4% .