医药废硫酸钠盐燃烧特性及低温炭化除杂研究

doi:10.19964/j.issn.1006-4990.2020-0604

Abstract

Abstract:

A two-step process of low temperature carbonization and high temperature activation was used to treat typical medical waste salt,and inorganic salt and activated carbon materials were recovered successfully.The organic matter in the waste salt was converted into insoluble residual carbon slag in low temperature carbonization section,which could be separated from inorganic salts by simple dissolution and filtration.Activated carbon material could be obtained by activating residual carbon residue as carbon precursor.The components of waste salt were analyzed by atomic fluorescence spectrometry and gas chroma-tography mass spectrometry.The activation energy of waste salt incineration was calculated by Friedman method and Starink method.The carbonization conditions of waste salt at low temperature were optimized by pipe furnace simulation test.The carbon residues were KOH impregnation method to prepare activated carbon.The results showed that the removal rate of dissolved organic carbon in the waste salt reached 99.98% under the conditions of air atmosphere,350 ℃ and 60 min,and the obtained inorganic salt products met the requirements of GB/T 6009—2014“Industrial anhydrate Sodium Sulfate” class Ⅲ.The adsorption capacity of activated carbon for methylene blue reached 762.86 mg/g.

Key words: pharmaceutical waste salt, thermal treatment, low-temperature carbonization, carbon residues, recovery

CLC Number:

X787

Yang Wenzhen,Xiong Ping,Sun Xiuyun,Han Weiqing. Study on combustion characteristics of waste pharmaceutical Na₂SO₄ and impurity removal by low-temperature carbonization[J]. Inorganic Chemicals Industry, 2021, 53(9): 76-82.

Figures/Tables 13

Table 1

Table 2

Fig.1

Table 3

Fig.2

Fig.3

Table 4

Fig.4

Table 5

Fig.5

Fig.6

Table 6

Fig.7

References 22

[1]	周海云, 鲍业闯, 包健, 等. 工业废盐处理处置现状研究进展[J]. 环境科技, 2020, 33(2):70-75.
[2]	丁志广, 郭键柄, 卢超. 化工废盐无害化处理的实验研究[J]. 无机盐工业, 2020, 52(2):58-61.
[3]	姜海超, 申银山, 陈晓飞, 等. 含氰工业废盐中杂质的高温氧化脱除实验研究[J]. 无机盐工业, 2020, 52(2):62-64.
[4]	王利超, 王志良, 马堂文, 等. 模拟氯化钠盐渣的高温处理[J]. 化工环保, 2014, 34(5):419-422.
[5]	Cao M, Liu L, Yu Z, et al. Studies on the corrosion behavior of Fe-20Cr alloy in NaCl solution spray at 600 ℃[J]. Corrosion Science, 2018, 133:165-177. doi: 10.1016/j.corsci.2018.01.033
[6]	李强, 戴世金, 郑怡琳, 等. 工业废盐中有机物脱除和资源化技术进展[J]. 环境工程, 2019, 37(12):200-206.
[7]	李春雨, 蒋旭光, 安春国, 等. 农药生产废渣燃烧/热解特性研究[J]. 中国电机工程学报, 2009, 29(23):45-50.
[8]	董俊佳, 刘志英, 王雷, 等. 医药类废盐渣的燃烧/热解特性及动力学研究[J]. 环境污染与防治, 2019, 41(9):1070-1075.
[9]	廖辉伟, 姜珊, 贾金, 等. 农药含钾废渣的热解动力学[J]. 环境化学, 2012, 31(4):478-482.
[10]	Vyazovkin S, Burnham A K, Criado J M, et al. ICTAC Kinetics Co-mmittee recommendations for performing kinetic computations on thermal analysis data[J]. Thermochimica Acta, 2011, 520(1/2):1-19. doi: 10.1016/j.tca.2011.03.034
[11]	Wang X, Ren Q, Li L, et al. TG-MS analysis of nitrogen transformation during combustion of biomass with municipal sewage sludge[J]. Journal of Thermal Analysis and Calorimetry, 2016, 123(3):2061-2068. doi: 10.1007/s10973-015-4712-z
[12]	苏梦, 祝建中, 朱晓强, 等. 二氰蒽醌农药废盐热处理特性[J]. 科学技术与工程, 2019, 19(24):423-429.
[13]	Yousaf B, Liu G, Abbas Q, et al. Systematic investigation on com-bustion characteristics and emission-reduction mechanism of potentially toxic elements in biomass- and biochar-coal co-combustion systems[J]. Applied Energy, 2017, 208:142-157. doi: 10.1016/j.apenergy.2017.10.059
[14]	Huang L, Xie C, Liu J, et al. Influence of catalysts on co-combus-tion of sewage sludge and water hyacinth blends as determined by TG-MS analysis[J]. Bioresource Technology, 2018, 247:217-225. doi: 10.1016/j.biortech.2017.09.039
[15]	Huang J, Liu J, Chen J, et al. Combustion behaviors of spent mush-room substrate using TG-MS and TG-FTIR:Thermal conversion,kinetic,thermodynamic and emission analyses[J]. Bioresource Technology, 2018, 266:389-397. doi: 10.1016/j.biortech.2018.06.106
[16]	李唯实, 黄泽春, 雷国元, 等. 典型农药废盐热处理过程动力学特征[J]. 中国环境科学, 2018, 38(7):2691-2698.
[17]	张进, 何鑫, 姚思童, 等. 漫反射傅里叶变换红外光谱法定量分析食盐中的硫酸根[J]. 中国调味品, 2015, 40(12):127-131.
[18]	黄欣, 陈业钢, 苏楠楠, 等. 高盐废水分质结晶及资源化利用研究进展[J]. 化学工业与工程, 2019, 36(1):10-23.
[19]	范庆玲, 郭小甫, 袁俊生. 垃圾焚烧飞灰水洗液纯化及无机盐分离[J]. 无机盐工业, 2019, 51(3):67-71.
[20]	Otowa T, Nojima Y, Miyazaji T. Development of KOH activated high surface area carbon and its application to drinking water purification[J]. Carbon, 1997, 35(9):1315-1319. doi: 10.1016/S0008-6223(97)00076-6
[21]	李建生, 高长青, 王雪, 等. 高性能活性炭开发生产中的无机活化剂[J]. 无机盐工业, 2019, 51(8):1-6.
[22]	Wang J, Lei S, Liang L. Preparation of porous activated carbon from semi-coke by high temperature activation with KOH for the high-efficiency adsorption of aqueous tetracycline[J]. Applied Surface Science, 2020, 530.DOI: 10.1016/j.apsusc.2020.147187. doi: 10.1016/j.apsusc.2020.147187

工业分析（收到基）				元素分析（冷冻干燥基）
w（灰分）	w（挥发分）	w（固定碳）	w（水分）	w（C）	w（H）	w（O）	w（N）	w（S）
79.11	17.78	0.65	2.46	4.13	1.37	45.39	4.25	14.42

保留时间/min	名称	峰面积分数/%	沸点/℃
6.4	二甲基甲酰胺	10.56	153
10.2	氨基甲酸甲酯	6.01	177
10.4	N-甲基甲酰胺	12.14	199
15.5	甲酰基三甲基脲	8.75	—
18.6	2,6-二甲氧基-4-氟嘧啶	8.00	100
18.9	—^①	8.14	—
19.2	1,1-二甲基脲	8.47	163
21.2	1,2-二甲基咪唑烷-2,4,5-三酮	10.58	—
23.2	1,3-二甲基脲	27.36	270

α	Friedman法		Starink法
α	E/（kJ·mol^-1）	R²	E/（kJ·mol^-1）	R²
0.05	94.88	0.962	97.05	0.937
0.10	91.03	0.959	95.10	0.954
0.15	88.08	0.960	93.01	0.959
0.20	87.39	0.964	91.46	0.961
0.25	89.26	0.971	90.63	0.964
0.30	94.25	0.977	91.05	0.967
0.35	102.98	0.979	92.88	0.970
0.40	113.15	0.977	97.21	0.971
0.45	114.92	0.980	102.41	0.971
0.50	111.98	0.979	105.81	0.973
0.55	111.47	0.982	107.58	0.975
0.60	116.51	0.995	109.21	0.981
0.65	136.50	0.995	116.40	0.987
0.70	178.38	0.992	138.10	0.988
0.75	252.99	0.984	205.57	0.983
0.80	601.08	0.635	794.17	0.527
0.85	161.57	0.973	186.79	0.983
0.90	107.92	0.931	143.39	0.978

处理时间/min	DOC含量/（mg·g^-1）	处理时间/min	DOC含量/（mg·g^-1）
30	1.39	90	0.85
45	1.29	120	0.77
60	0.87

	项目		w（Na₂SO₄）/%	w（水分）/%	w（水不溶物）/%	w（钙镁）/%	w（氯）/%
国标	Ⅰ类	优级品	≥99.6	≤0.05	≤0.005	—	≤0.05
	Ⅰ类	一等品	≥99.0	≤0.50	≤0.05	≤0.15	≤0.35
	Ⅱ类	一等品	≥98.0	≤0.80	≤0.10	≤0.30	≤0.70
	Ⅱ类	合格品	≥97.0	≤3.00	≤0.20	≤0.40	≤0.90
	Ⅲ类	一等品	≥95.0	≤3.50	—	≤0.6	≤2.0
	Ⅲ类	合格品	≥93.3	—	—	—	—
回收无机盐			96.57	0.03	未检出	0.21	3.19

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Study on combustion characteristics of waste pharmaceutical Na₂SO₄ and impurity removal by low-temperature carbonization

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 13

References 22

Related Articles 15

Metrics

Comments

Recommended 0

[1]	ZENG Yijun, JIANG Ziwen, JIAN Chengzong, QUAN Xuejun. Study on deep extraction of chromium from calcium-free roasting slag of chromite ore [J]. Inorganic Chemicals Industry, 2025, 57(1): 90-96.
[2]	LIU Jintong, ZHANG Jie, ZHOU Junliang, WU Bingdang, HUANG Tianyin, YANG Jingjing. Summary of antimony residues and status in antimony recovery technology [J]. Inorganic Chemicals Industry, 2024, 56(9): 1-11.
[3]	LI Shuai, LI Tianxiang, ZHU Jing, LIU Songlin. Study on purification process of sodium fluoride [J]. Inorganic Chemicals Industry, 2024, 56(9): 90-97.
[4]	YUAN Yaosen, LI Enze, LÜ Hongzhou, SONG Yipeng, YANG Chengli, LI Juanjuan. Study on application of spray⁃drying method in inorganic salt recovery and organic matter decomposition in high salt organic wastewater [J]. Inorganic Chemicals Industry, 2024, 56(8): 83-91.
[5]	WANG Junting, MA Hang, ZHA Zuotong, WAN Banglong, ZHANG Zhenhuan. Research progress of iron phosphate industrial wastewater treatment process [J]. Inorganic Chemicals Industry, 2024, 56(6): 26-33.
[6]	BAI Chaopeng, PENG Hui, CHEN Yuting, LUO Jiang, ZHANG Shengming. Research progress of recovery，purification and recycling of ruthenium from scrap ruthenium materials [J]. Inorganic Chemicals Industry, 2024, 56(4): 24-33.
[7]	XU Miao, XU Dehua, SHOU Zhixin, YANG Wengong, WANG Xinlong. Study on preparation process of magnesium ammonium polyphosphate [J]. Inorganic Chemicals Industry, 2024, 56(12): 88-93.
[8]	ZHAO Runze, QIAN A′niu. Research progress of lithium recovery for spent lithium-ion batteries and preparation in battery-grade lithium carbonate [J]. Inorganic Chemicals Industry, 2024, 56(12): 70-78.
[9]	ZHOU Zhaoan, LI Jun, LIU Xiaowen, ZHOU Aiqing, MAO Anzhang. Study on carbonization and purification process of high COD industrial waste salt [J]. Inorganic Chemicals Industry, 2023, 55(9): 100-105.
[10]	WANG Liping, LI Chao, CHANG Ning, CAO Kun, GAO Guimei, ZHANG Yunfeng, HONG Yu, TU Ya, ZHAO Jianqiang. Research progress of recovery technology of valuable elements from coal gangue [J]. Inorganic Chemicals Industry, 2023, 55(7): 10-17.
[11]	WANG Benlei, ZHANG Guisheng, JIANG Lingyun, LI Chen, WANG Pengfei, LI Jixia, ZANG Jiazhong. Study on preparation process of rhodium trichloride by roasting recovery technology from waste rhodium solution of carbonyl synthesis [J]. Inorganic Chemicals Industry, 2023, 55(6): 104-108.
[12]	LU Dachuan, GU Weihua, ZHAO Jing, ZHUANG Xuning, DONG Bin, BAI Jianfeng. Research progress of influencing factors of pyrolysis of municipal sludge and residue recycling [J]. Inorganic Chemicals Industry, 2023, 55(5): 8-15.
[13]	CHEN Yujue, ZHANG Liangjun, KUANG Huan, JIANG Manwen, XIAO Li. Study on roasting and recovery process of waste lithium iron phosphate powder with sodium bisulfate [J]. Inorganic Chemicals Industry, 2023, 55(3): 113-117.
[14]	LI Li,LI Yu,JIN Yan,QIU Jun,YANG Ying,ZHANG Yonghong,XIAO Fang,YU Jianguo. Key technology and application of lithium extraction from produced water in high sulfur and high hardness gas fields [J]. Inorganic Chemicals Industry, 2023, 55(1): 74-80.
[15]	JIANG Tiantian,XU Xuetang,WANG Fan. Research on growth and supercapacitance of NiCo based electrode materials regulated by halogen ions [J]. Inorganic Chemicals Industry, 2022, 54(8): 66-73.

Study on combustion characteristics of waste pharmaceutical Na2SO4 and impurity removal by low-temperature carbonization