赤泥-磷石膏复合材料中重金属浸出研究

doi:10.19964/j.issn.1006-4990.2022-0195

Abstract

Abstract:

In order to realize the resource utilization of two major industrial solid wastes of red mud and phosphogypsum,the unmodified red mud and phosphogypsum were used as raw materials to prepare composite materials meeting requirements of mine filling through the modification and solidification of composite additives.When the mass fraction of red mud was 85% of the total raw materials and phosphogypsum was 5%,the compressive strength of the composite cured for 28 d was 4.34 MPa,which met the requirements of mechanical properties of mine filling.According to the“Horizontal oscillation method of solid waste leaching method”（HJ 557—2010） and the Dutch standard“container experiment for testing the diffusion leaching behavior of inorganic components in block waste or building materials”（EA NEN 7375—2004）,the leaching experiment was carried out on the comparison of granular and block samples.The leaching behavior of heavy metals（Cd,Cr,Ni,Ba） in red mud phosphogypsum composite materials was studied.The results showed that the leaching concentrations of heavy metals from large to small was Cr,Ba,Ni and Cd.When the content of phosphogypsum was less than 5%,the leaching concentration and diffusion coefficient of heavy metals were changed slightly,and the leaching rate of heavy metals was increased when it was above 5%.The leaching behavior of heavy metals in composites by two leaching methods was analyzed dynamically.It was found that the leaching behavior of heavy metals was mainly controlled by diffusion,and also by depletion and retardation in the long-term leaching process.

Key words: red mud, phosphogypsum, filling, heavy metals, leaching

CLC Number:

TB332

HUANG Zhiwei,SU Xiangdong,ZHANG Jiangang,LUO Diyuan,CHEN Ye,LI Haijia. Study on leaching of heavy metals from red mud-phosphogypsum composite materials[J]. Inorganic Chemicals Industry, 2022, 54(10): 133-140.

Figures/Tables 14

Table 1

Table 2

Fig.1

Table 3

Fig.2

Fig.3

Fig.4

Fig.5

Table 4

Table 5

Table 6

Fig.6

Fig.7

Table 7

References 24

[1]	马时成, 梅再美, 顾汉念, 等. 锰渣-赤泥吸附剂制备及其对铜（Ⅱ）吸附性能[J].无机盐工业, 2020, 52(3): 85-89.
	MA Shicheng, MEI Zaimei, GU Hannian, et al.Preparation of manganese residue-bauxite residue adsorbent and its adsorption capacity on Cu²⁺ [J].Inorganic Chemicals Industry, 2020, 52(3): 85-89.
[2]	LU Guozhi, ZHANG Tingan, MA Linan, et al.Utilization of Bayer red mud by a calcification-carbonation method using calcium aluminate hydrate as a calcium source[J].Hydrometallurgy, 2019, 188(9): 248-255.
[3]	PARAMGURU R K, RATH P C, MISRA V N.Trends in red mud utilization:A review[J].Mineral Processing and Extractive Metallurgy Review, 2004, 26(1): 1-29.
[4]	WANG Mengfan, LIU Xiaoming.Applications of red mud as an environmental remediation material:A review[J].Journal of Hazardous Materials, 2021, 408(4).Doi:10.1016/j.jhazmat.2020.124420 . doi: 10.1016/j.jhazmat.2020.124420
[5]	WANG Lihua, ZHANG Jie, SUN Gaochao.Research and analysis of new paste filling material based on red mud iron tailings[J].E3S Web of Conferences, 2020, 198(1).Doi:10.1051/E3SCONF/ 202019801017 . doi: 10.1051/E3SCONF/ 202019801017
[6]	温震江.钢渣协同矿渣制备超细尾砂充填胶结料及应用研究[D].北京:北京科技大学, 2021.
	WEN Zhenjiang.Study on preparation and application of binder with steel slag for the cemented superfine tailings backfill[D].Beijing:University of Science and Technology Beijing, 2021.
[7]	姜艳, 孙丽达, 李自静, 等. 高炉烟尘中锌的浸出动力学研究[J].无机盐工业, 2015, 47(1): 53-55.
	JIANG Yan, SUN Lida, LI Zijing, et al.Research on kinetics of acid leaching of zinc from blast furnace dust[J].Inorganic Chemicals Industry, 2015, 47(1): 53-55.
[8]	张伟, 高雨霏, 张丽迎.硫酸铅在柠檬酸-氢氧化钠体系浸出动力学研究[J].无机盐工业, 2019, 51(2): 19-21.
	ZHANG Wei, GAO Yufei, ZHANG Liying.Leaching kinetic mechanism of lead sulfate in citric acid-NaOH system[J].Inorganic Chemicals Industry, 2019, 51(2): 19-21.
[9]	杨昱, 杨玉飞, 黄启飞, 等. 液固比对含重金属水泥熟料制品中重金属释放的影响[J].环境工程学报, 2009, 3(10): 1866-1869．
	YANG Yu, YANG Yufei, HUANG Qifei, et al.Influence of liquid to solid ratio on release of heavy metals in cement clinker product containing heavy metals[J].Chinese Journal of Environmental Engineering, 2009, 3(10): 1866-1869．
[10]	白翔宇, 李顺群.淤泥混合土的重金属浸出特性及稳定性研究[J].工业建筑, 2021, 51(11): 149-153, 185.
	BAI Xiangyu, LI Shunqun.Study on leached characteristics and stability of heavy metal in cemented mixed sludge[J].Industrial Construction, 2021, 51(11): 149-153, 185.
[11]	REN Jie, ZHANG Lihai, NICOLAS R S, et al.Degradation process of alkali-activated slag fly ash and Portland cement-based pastes exposed to phosphoric acid[J].Construction and Build-Materialsing, 2020,232.Doi:10.1016/j.conbuildmat.2019.117209.
[12]	唐强, 陈辉, 尹立新, 等. 生活垃圾焚烧飞灰固化体力学及重金属浸出特性[J].环境工程, 2017, 35(4): 111-114.
	TANG Qiang, CHEN Hui, YIN Lixin, et al.Mechanics and leaching characteristics of heavy metals in stabilized mswi fly ash[J].Environmental Engineering, 2017, 35(4): 111-114.
[13]	CHO J H,EOM Y, LEE T G.Stabilization/solidification of mercury-contaminated waste ash using calcium sodium phosphate（CNP） and magnesium potassium phosphate（MKP） processes[J].Journal of Hazardous Materials, 2014, 278(6): 474-482.
[14]	海然, 王帅旗, 刘盼, 等. 热活化温度对氧化铝赤泥反应活性的影响及机理研究[J].无机盐工业, 2019, 51(9): 72-75.
	Ran HAI, WANG Shuaiqi, LIU Pan, et al.Effect of thermal activated temperature on activation and mechanism of red mud from alumina production[J].Inorganic Chemicals Industry, 2019, 51(9): 72-75.
[15]	刘昭兵, 纪雄辉, 王国祥, 等. 赤泥对Cd 污染稻田水稻生长及吸收累积 Cd 的影响[J].农业环境科学学报, 2010, 29(4): 692-697.
	LIU Zhaobing, JI Xionghui, WANG Guoxiang, et al.Effects of red-mud on rice growth and cadmium uptake in cadmium polluted soil[J].Journal of Agro-Environment Science, 2010, 29(4): 692-697.
[16]	LI Zepeng, LIU Xiaoming, LI Yong, et al.Effects of sulfate on the mechanical performances and hydration characteristics of red mud based non-burnt brick[J].Construction and Building Materials, 2020, 262(30).Doi:10.1016/j.conbuildmat.2020.120722 . doi: 10.1016/j.conbuildmat.2020.120722
[17]	靳必强, 张婷婷, 朱静平, 等. 钛石膏的开发利用研究进展[J].矿产综合利用, 2020, 3(6) : 28-31.
	JIN Biqiang, ZHANG Tingting, ZHU Jingping, et al.The development and research progress of titanium gypsum exploitation and utilization[J].Multipurpose Utilization of Mineral Resources, 2020, 3(6) : 28-31.
[18]	NI Bin, WANG Hongbo, LI Xudong, et al.Water environmental health risk assessment in lake sources of drinking water[J].Research of Environmental Sciences, 2010, 23 (1): 74-79.
[19]	田梦莹, 杨玉飞, 黄启飞, 等. 烧结砖中重金属释放特性研究[J].安全与环境学报, 2015, 15(6): 191-195.
	TIAN Mengying, YANG Yufei, HUANG Qifei, et al.On the heavy-metal releasing features in sintered bricks[J].Journal of Safety and Environment, 2015, 15(6): 191-195.
[20]	王希尹.固废生产建材中重金属浸出方法研究[D].重庆:重庆交通大学, 2018.
	WANG Xiyin.Study on leaching methods of heavy metals in solid waste production building materials[D].Chongqing:Chongqing Jiaotong University, 2018.
[21]	杨昱, 杨玉飞, 黄启飞, 等. 废物水泥窑共处置产品中Ni释放的pH影响[J].环境科学与技术, 2010, 33(3): 18-22.
	YANG Yu, YANG Yufei, HUANG Qifei, et al.Impact of pH on release of Ni in cement product from co-processing waste in cement kiln[J].Environmental Science & Technology, 2010, 33(3): 18-22.
[22]	薛真, 薛彦辉, 王力.拜耳法赤泥中铝铁的盐酸浸出过程研究[J].矿产综合利用, 2018(6): 139-143.
	XUE Zhen, XUE Yanhui, WANG Li.Study on leaching of aluminum and iron from bayer red mud with hydrochloric acid[J].Multipurpose Utilization of Mineral Resources, 2018(6): 139-143
[23]	MOUSA M I, MAHDY M G, ABDEL-REHEEM A H, et al.Self-curing concrete types；water retention and durability[J].Alexandria Engineering Journal, 2015, 54(3): 565-575.
[24]	范剑明, 李娜, 冯鑫国.粉煤灰/矿渣复合基沙土固化剂的制备及固化性能研究[J].矿产综合利用, 2019(6): 105-109.
	FAN Jianming, LI Na, FENG Xinguo.Study on preparation and curing performance of fly ash/slag-based soil stabilizer[J].Multipurpose Utilization of Mineral Resources, 2019(6): 105-109.

原料	w（Cr）	w（Ni）	w（Ba）	w（Cd）
赤泥	60.32	42.11	41.00	8.85
磷石膏	2.04	4.97	2.02	0.08
复合助剂	0.05	0.01	0.01	—

浸出阶段	浸取液更换时间		浸出阶段	浸取液更换时间
浸出阶段	累计时间/d	间隔时间/h	浸出阶段	累计时间/d	间隔时间/h
1	0.25	6	5	9.00	120
2	1.00	18	6	16.00	168
3	2.25	30	7	36.00	480
4	4.00	42	8	64.00	672

序号	w（赤泥）/ %	w（磷石膏）/%	w（复合助剂）/%	密度/ （g·cm^-3）	28 d抗压强度/MPa
G1	90	0	10	1.38	4.07
G2	88	2	10	1.38	4.15
G3	85	5	10	1.41	4.34
G4	80	10	10	1.39	5.40
G5	75	15	10	1.40	6.28

磷石膏添加量/%	扩散系数D₀/（cm²·s^-1）
磷石膏添加量/%	Cr	Ni	Ba	Cd
0	6.3×10^-14	1.6×10^-14	1.92×10^-14	1.97×10^-14
2	1.33×10^-13	1.86×10^-14	3.3×10^-14	1.8×10^-14
5	6.72×10^-13	2.2×10^-14	2.67×10^-14	1.1×10^-14
10	1.29×10^-12	3.5×10^-14	1.34×10^-14	2.7×10^-14
15	1.42×10^-12	1.43×10^-13	8.5×10^-14	2.2×10^-14

浸出区间	r_C
浸出区间	Cr	Ba	Ni	Cd
2~7	0.58	0.38	0.44	0.42
5~8	0.22	0.34	0.31	0.32
4~7	0.34	0.43	0.46	0.34
3~6	0.51	0.53	0.49	0.61
2~5	0.53	0.55	0.51	0.63
1~4	0.66	0.68	0.66	0.66

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Study on leaching of heavy metals from red mud-phosphogypsum composite materials

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 14

References 24

Related Articles 15

Metrics

Comments

Recommended 0

浸出区间	浸出机理
浸出区间	Cr	Ba	Ni	Cd
2~7	扩散控制	扩散控制	扩散控制	扩散控制
5~8	耗竭作用	耗竭作用	耗竭作用	耗竭作用
4~7	耗竭作用	扩散控制	扩散控制	耗竭作用
3~6	扩散控制	扩散控制	扩散控制	扩散控制
2~5	扩散控制	扩散控制	扩散控制	扩散控制
1~4	延滞作用	延滞作用	延滞作用	延滞作用

测试	Ⅲ类地下水限值/ （mg?L^-1）	污水排放限值/ （mg?L^-1）	5%磷石膏重金属浸出质量浓度/ （mg?L^-1）			15%磷石膏重金属浸出质量浓度/（mg?L^-1）
测试	Ⅲ类地下水限值/ （mg?L^-1）	污水排放限值/ （mg?L^-1）	HJ557—2010	EA NEN7375—2004		HJ557—2010	EA NEN7375—2004
Cr	—	≤1.50	0.200	0.240	0.310		0.350
Ni	≤0.020	≤1.00	0.004	0.006	0.008		0.009 5
Ba	≤0.700	—	0.010	0.030	0.030		0.070
Cd	≤0.005	≤0.01	0.002	0.004	0.006		0.009

[1]	WANG Peixiong, GONG Xiaomei, DING Jiaqi, CAO Hong. Effect of crystal modifier on preparation of α-hemihydrates gypsum from industrial gypsum [J]. Inorganic Chemicals Industry, 2024, 56(4): 112-117.
[2]	YU Zhou, HE Zhaoyi, TANG Liang, HE Sheng, XIAO Haixin, XIAO Yixun. Study on preparation and microscopic properties of typical sulfate solid waste composite cementitious materials [J]. Inorganic Chemicals Industry, 2024, 56(4): 90-97.
[3]	CHEN Feng, FENG Kang, LI Ming, SHEN Haojie, TIAN Chengtao, TANG Yuan, LI Zhili, HE Dongsheng. Application of organically modified calcium sulfate whiskers in asphalt modification [J]. Inorganic Chemicals Industry, 2024, 56(3): 125-130.
[4]	WANG Jianrui, ZHANG Song, ZHANG Jie. Study on new process for beneficiation phosphate of low-grade phosphate rock leaching via lactic acid [J]. Inorganic Chemicals Industry, 2024, 56(3): 56-63.
[5]	WANG Ruting, ZHAO Xiaorong, HUANG Xuquan, WANG Haojie, XUE Fei, CAI Jiawei. Research on preparation and early performance of mixed phase phosphogypsum-based cementing materials [J]. Inorganic Chemicals Industry, 2024, 56(3): 98-104.
[6]	ZHANG Guidong, YANG Xuejiao, GUO Xudong, YANG Lin. Study on hydration properties of type Ⅱ anhydrite prepared by calcination and atmospheric acidification [J]. Inorganic Chemicals Industry, 2024, 56(2): 104-110.
[7]	HUANG Tao, HUANG Zili, XIAO Shuo, ZHENG Jiemiao, LIU Xiaofeng, WU Jilong. Experimental study on preparation of polyferric chloride from iron tailings acid leaching solution [J]. Inorganic Chemicals Industry, 2024, 56(2): 121-126.
[8]	WANG Yanyu, GU Shouyu, HOU Cuihong, JING Hongquan, GUAN Hongling, ZHANG Hui. Sulfur escape and slag physical phase analysis by carbon thermal reduction melting based on phosphogypsum ingredients [J]. Inorganic Chemicals Industry, 2024, 56(2): 86-94.
[9]	DENG Hua, HOU Shuomin, LI Zhongjun, XU Gang, CHI Ru′an, XI Benjun. Current situation and prospect of comprehensive utilization of phosphogypsum [J]. Inorganic Chemicals Industry, 2024, 56(1): 1-8.
[10]	XIA Guiying, YANG Liuchun, YUAN Zhiye. Study on direct leaching of rare earth elements from phosphogypsum with sulfuric acid [J]. Inorganic Chemicals Industry, 2024, 56(1): 107-113.
[11]	XIANG Mengqi, MENG Hua, WANG Ye, MENG Xianzhang, BAI Yuhang, WANG Yujunyao, ZHANG Yidan. Study on kinetic of iron leaching from titanium gypsum and its cyclic acid leaching process [J]. Inorganic Chemicals Industry, 2024, 56(1): 114-120.
[12]	ZHANG Conghua, YAN Wenbin, XIAO Jiajun, ZHAO Ke, PENG Shangquan, WEI Yuhong. Reductive leaching technology of manganese anode slag using tartaric acid as reducing agent optimized by RSM [J]. Inorganic Chemicals Industry, 2023, 55(9): 106-113.
[13]	LUO Wenbo, LI Heng, LÜ Jun, YANG Linguang, ZHAO Xingfan, LONG Xiao. Study on recovery of silicon and aluminum from industrial silicon slag [J]. Inorganic Chemicals Industry, 2023, 55(9): 94-99.
[14]	CUI Gengyin, XIE Lang, LU Yuexian, KONG Dewen, WANG Lingling. Optimization of mechanical properties of basalt fiber reinforced phosphogypsum-based composites based on RSM [J]. Inorganic Chemicals Industry, 2023, 55(8): 116-123.
[15]	LI Heng, ZHANG Hui, ZI Xuemin. Analysis on calcination process progress of phosphogypsum [J]. Inorganic Chemicals Industry, 2023, 55(6): 27-35.