化工进展 ›› 2017, Vol. 36 ›› Issue (S1): 495-499.DOI: 10.16085/j.issn.1000-6613.2017-0350

• 资源与环境化工 • 上一篇    下一篇

高温焙烧改性底泥吸附剂的应用

于珊珊1, 杨月红1, 程杨2   

  1. 1. 昆明理工大学环境科学与工程学院, 云南 昆明 650500;
    2. 北方碧水环境工程有限公司, 黑龙江 哈尔滨 150070
  • 收稿日期:2017-03-07 修回日期:2017-03-14 出版日期:2017-12-31 发布日期:2017-12-13
  • 通讯作者: 杨月红,教授级高级工程师,研究方向为固体废弃物处理。
  • 作者简介:于珊珊(1991-),女,硕士研究生。
  • 基金资助:
    人才科研启动(14119031)及科技三项费用(20090074)项目。

Application of high temperature roasting modified sediment adsorbent

YU Shanshan1, YANG Yuehong1, CHENG Yang2   

  1. 1. Faculty of Environmental Science and Engineering, Kunming University of Science & Technology, Kunming 650500, Yunan, China;
    2. North Water Environment Engineering Limited Company, Harbin 150070, Heilongjiang, China
  • Received:2017-03-07 Revised:2017-03-14 Online:2017-12-31 Published:2017-12-13

摘要: 在滇池的疏浚过程中产生了巨大的底泥,其堆积程度也在剧增,不仅对生态环境造成破坏,还占用了大量的土地。目前对于滇池底泥的的综合利用已经初步地探索出一条途径,但是如何实现底泥的减量化、无害化、稳定化处置和资源化利用,是当前亟待解决的大问题。为了解决这一问题,本文提出了将底泥作为吸附剂吸附工业废水中的重金属离子,为实现底泥的资源化利用提供一种新的思路。通过高温焙烧处理底泥吸附处理模拟含铬和铜的废水,采用静态吸附法,研究了焙烧温度、pH、离子浓度、吸附温度、吸附时间对底泥吸附Cr6+和Cu2+的影响。结果表明,利用高温焙烧改性底泥吸附处理含铬和铜的废水,具有去除率高、吸附量大、处理效果好等优点。热力学参数的计算结果表明底泥对Cr6+和Cu2+的吸附过程均为自发、吸热和熵增加的过程。

关键词: 高温焙烧, 底泥, 吸附, 废水, 改性, 动力学模型

Abstract: In the dredging process of the battery produced a lot of sediment,and the amount of accumulation is increasing. Not only to the destruction of the ecological environment, but also take up a lot of land. At present, the comprehensive utilization of sediment in Dianchi has been preliminarily explored,But how to achieve the reduction of sediment, harmless, stable disposal and resource utilization, is a big problem to be solved. In order to solve this problem, a new method is put forward, which uses sediment as adsorbent. In order to solve this problem, it is proposed that the sediment is used as adsorbent to adsorb heavy metal ions in industrial wastewater, which provides a new way to realize the resource utilization of sediment. Through the high temperature calcination treatment sediment adsorption treatment of chromium and copper containing wastewater,using static adsorption method. The effects of calcination temperature, pH, ion concentration, adsorption temperature and adsorption time on the adsorption of Cr6+ and Cu2+ were studied. The results show that the treatment of wastewater containing chromium and copper by high temperature roasting sediment has the advantages of high removal rate, high adsorption capacity and good treatment effect. The results of thermodynamic parameters show that the adsorption process of Cr6+ and Cu2+ is spontaneous, endothermic and entropy.

Key words: high temperature roasting, sediment, adsorption, wastewater, modified, kinetic modeling

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