[1]徐 朦,龚佳豪,周美成,等.河道底泥轻质陶粒的制备及性能[J].常州大学学报(自然科学版),2020,32(03):25-33.[doi:10.3969/j.issn.2095-0411.2020.03.004]
　XU Meng,GONG Jiahao,ZHOU Meicheng,et al.Study on Preparation and Performance of Lightweight Ceramsite Made of River Sediment[J].Journal of Changzhou University(Natural Science Edition),2020,32(03):25-33.[doi:10.3969/j.issn.2095-0411.2020.03.004]
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河道底泥轻质陶粒的制备及性能()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第32卷
期数:
2020年03期
页码:
25-33
栏目:
环境科学与工程
出版日期:
2020-05-28

文章信息/Info

Title:
Study on Preparation and Performance of Lightweight Ceramsite Made of River Sediment
文章编号:
2095-0411(2020)03-0025-09
作者:
徐 朦1; 龚佳豪2; 3; 周美成4; 董良飞1
(1. 常州大学 环境与安全工程学院,江苏 常州 213164; 2. 宁波首创厨余垃圾处理有限公司,浙江 宁波 315000; 3. 首创环境控股有限公司,上海 200080; 4. 江苏冰洲石环保科技有限公司,江苏 南京 210000)
Author(s):
XU Meng1;  GONG Jiahao2; 3;  ZHOU Meicheng4;  DONG Liangfei1
(1. School of Environmental & Safety Engineering, Changzhou University, Changzhou 213164, China; 2. Ningbo Capital Kitchen Waste Disposal Co., Ltd., Ningbo 315000, China; 3. Capital Environment Holdings Limited, Shanghai 200080,China; 4. Jiangsu Ice Island Environmental Protection Technology Co., Ltd., Nanjing 210000, China)
关键词:
河道底泥;  轻质陶粒制备;  物理性能
Keywords:
river sediment;  preparation of lightweight ceramsite;  physical performance
分类号:
X 705
DOI:
10.3969/j.issn.2095-0411.2020.03.004
文献标志码:
A
摘要:
以河道底泥为主要原料,以粉煤灰、黏土为辅料,通过对原料的化学成分、矿物物相分析,考察其制备轻质陶粒的可行性。分别研究了原料配比、烧结温度及烧结时间等对陶粒性能的影响并对陶粒进行微观结构及矿物组成分析。结果表明,在原料配比m(河道底泥):m(粉煤灰):m(黏土)为4:2:4,预热温度350 ℃,时间20 min,烧结温度1 180 ℃,时间5 min时,可制备出堆积密度为0.73 g/cm3,表观密度为1.39 g/cm3,空隙率为48.1%,抗压强度为5.11 MPa的河道底泥轻质陶粒; 河道底泥陶粒中的重金属浸出毒性远低于原料,因此用河道底泥制备轻质陶粒是可行的。
Abstract:
Taking the river sediment as the main raw material with fly ash and clay as the auxiliary materials, and the feasibility of preparing the lightweight ceramsite was investigated by analyzing the chemical composition and mineral composition. The effects of raw material ratio, sintering temperature and sintering time on the properties of ceramsite were studied. The microstructure and mineral composition of ceramsite were analyzed by SEM and XRD. The lightweight ceramsite can be prepared when the raw material ratio of the river sediment, fly ash and clay is 4:2:4, at the preheating temperature 350 °C for 20 min, and the sintering temperature 1 180 °C for 5 min. The bulk density and the apparent density were 0.73 g/cm3 and 1.39 g/cm3, and the porosity and the compressive strength were 48.1% and 5.11 MPa. The heavy metal leaching toxicity is much lower than that of the raw material which shows that it is feasible to prepare lightweight ceramsite from the river sediment.

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备注/Memo

备注/Memo:
收稿日期:2020-01-08。
基金项目:2018年度南京市建邺区“高层次创业人才引进计划”资助项目(建人才发〔2018〕2号)。
作者简介:徐朦(1995—),女,江苏无锡人,硕士生。通信联系人:董良飞(1972—),E-mail: dlf@cczu.edu.cn
引用本文:徐朦,龚佳豪,周美成,等. 河道底泥轻质陶粒的制备及性能[J]. 常州大学学报(自然科学版),2020,32(3):25-33.
更新日期/Last Update: 2020-06-11