Ettect of γ-ray irradiation on degradation characteristics of synthetic coal chemical wastewater

Zhen LI; Jiaxin LIU; Wenbao JIA; Qing SHAN; Chao SHI; Jiandong ZHANG; Daqian HEI; Yongsheng LING

doi:10.11889/j.1000-3436.2024-0103

Journal of Radiation Research and Radiation Processing, Volume. 43, Issue 3, 030404-1(2025)

Ettect of γ-ray irradiation on degradation characteristics of synthetic coal chemical wastewater

Zhen LI¹, Jiaxin LIU¹, Wenbao JIA^1,2, Qing SHAN¹, Chao SHI¹, Jiandong ZHANG¹, Daqian HEI³, and Yongsheng LING^1,2、*

Author Affiliations

¹Institute of Nuclear Analysis Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China

²Jiangsu University Collaborative Innovation Center for Radiation Medicine, Suzhou 215031, China

³College of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

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Figures & Tables(14)

Fig. 1. COD content of wastewater samples at different absorbed doses: (a) without H₂O₂ addition; (b) with H₂O₂ addition (color online)

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Fig. 2. COD removal efficiency of different wastewater samples at various absorbed doses

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Fig. 3. BOD₅ content of wastewater samples at different absorbed doses: (a) without H₂O₂ addition; (b) with H₂O₂ addition (color online)

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Fig. 4. Modelling of changes in the properties of wastewater after irradiation: (a) B/C values; (b) pH values

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Fig. 5. Simulated colour development of wastewater after irradiation (color online): (left 1) unirradiated; (left 2, 3) unadjusted pH after irradiation; (right 1, 2) adjustment of pH to alkaline after irradiation

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Fig. 6. Changes in various indicators of wastewater irradiation treatment with different H₂O₂ concentrations: (a) COD; (b) BOD₅; (c) B/C

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Fig. 7. Changes in indicators after irradiation treatment of wastewater with different pH-values: (a) COD; (b) BOD₅; (c) B/C

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Fig. 8. 3D plots of simulated wastewater B/C response surface models: (a) H₂O₂,pH; (b) H₂O₂, absorbed dose; (c) pH, absorbed dose

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Table 1. Organic matter content in wastewater modelling samples
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Table 1. Organic matter content in wastewater modelling samples
苯酚Phenol 对甲酚P-cresol 对苯二酚Hydroquinone 喹啉Quinoline
1 40 40 40 40
2 60 60 60 60
3 80 80 80 80

Table 2. Simulation of pH changes after irradiation treatment of wastewater with different pH-values
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Table 2. Simulation of pH changes after irradiation treatment of wastewater with different pH-values
吸收剂量 / kGy
Absorbed dose
pH值
pH value
0 5 7 9
10 3.16 3.39 5.91
15 3.08 3.27 5.44
20 2.99 3.04 4.98

Table 3. BBD experimental factors and levels table
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Table 3. BBD experimental factors and levels table
因素
Factor
符号
Sign
量化水平 Quantitative level
-1 0 1
H₂O₂浓度 / (mmol·L^-1)
H₂O₂ concentration
A 10 20 30
pH值 pH value B 5 7 9
吸收剂量 / kGy
Absorbed dose
C 10 15 20

Table 4. Parameter results of analysis of variance (ANOVA) for B/C model of coal chemical wastewater

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Table 4. Parameter results of analysis of variance (ANOVA) for B/C model of coal chemical wastewater

方差来源 Source	平方和 Sum of squares	自由度 D_f	均方差 Mean square	系数 Coefficient	F值 Fvalue	p值 p value
模型Model	0.091 9	9	0.010 2	—	168.15	<0.000 1	显著Significant
失拟项 Lack of fit	0.001 2	3	0.000 1	—	1.50	0.342 9	不显著Not significant
R²	—	—	—	0.995 4	—	—	—
校正系数Adjusted R²	—	—	—	0.989 5	—	—	—
变异系数Predicted R²	—	—	—	0.957 6	—	—	—
信噪比 Adeq precision	—	—	—	35.767 2	—	—	—

Table 5. Significance of factors in B/C model of simulated coal chemical wastewater

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Table 5. Significance of factors in B/C model of simulated coal chemical wastewater

方差来源 Source	平方和 Sum of squares	自由度 D_f	均方差 Mean square	F值 Fvalue	p值 pvalue
A	0.005 0	1	0.005 0	82.35	< 0.000 1
B	0.000 3	1	0.000 3	5.15	0.057 6
C	0.035 1	1	0.035 1	578.32	< 0.000 1
AB	0	1	0	0	1.000 0
AC	0	1	0	0	1.000 0
BC	0	1	0	0.411 8	0.541 5
A²	0.039 0	1	0.039 0	642.46	< 0.000 1
B²	0.010 0	1	0.010 0	164.81	< 0.000 1
C²	6.579×10^-6	1	6.579×10^-6	0.108 4	0.751 7

Table 6. Comparison of the predicted and actual values of B/C of coal chemical wastewater under the optimal irradiation treatment conditions
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Table 6. Comparison of the predicted and actual values of B/C of coal chemical wastewater under the optimal irradiation treatment conditions
A- H₂O₂浓度 / (mmol·L^-1)
A-H₂O₂ concentration
B-pH值
B-pH value
C-吸收剂量 / kGy
C-Absorbed dose
预测B/C值
Predict B/C value
实际B/C值
Actual B/C value
21.9 7.4 19.6 0.443 9 0.423 4

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Zhen LI, Jiaxin LIU, Wenbao JIA, Qing SHAN, Chao SHI, Jiandong ZHANG, Daqian HEI, Yongsheng LING. Ettect of γ-ray irradiation on degradation characteristics of synthetic coal chemical wastewater[J]. Journal of Radiation Research and Radiation Processing, 2025, 43(3): 030404-1

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Paper Information

Category: RADIATION TECHNOLOGY APPLICATION

Received: Nov. 4, 2024

Accepted: Jan. 17, 2025

Published Online: Jul. 7, 2025

The Author Email: Yongsheng LING (凌永生)

DOI:10.11889/j.1000-3436.2024-0103

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Organic matter content in wastewater modelling samples

Table 1. Organic matter content in wastewater modelling samples

Table 2. Simulation of pH changes after irradiation treatment of wastewater with different pH-values

Table 2. Simulation of pH changes after irradiation treatment of wastewater with different pH-values

Table 3. BBD experimental factors and levels table

Table 3. BBD experimental factors and levels table

Table 4. Parameter results of analysis of variance (ANOVA) for B/C model of coal chemical wastewater

Table 4. Parameter results of analysis of variance (ANOVA) for B/C model of coal chemical wastewater

Table 5. Significance of factors in B/C model of simulated coal chemical wastewater

Table 5. Significance of factors in B/C model of simulated coal chemical wastewater

Table 6. Comparison of the predicted and actual values of B/C of coal chemical wastewater under the optimal irradiation treatment conditions

Table 6. Comparison of the predicted and actual values of B/C of coal chemical wastewater under the optimal irradiation treatment conditions