Study on Spectral Characteristics of Dissolved Organic Matter in Composting With Different Conditioners and Leached Dewatered Sludge

Ze LU; Bei-dou XI; De-zhi TAI; Liang-quan LU; Xiao-jie SUN; Jun ZHANG; Hua ZHANG

doi:10.3964/j.issn.1000-0593(2022)07-2120-10

Spectroscopy and Spectral Analysis, Volume. 42, Issue 7, 2120(2022)

Study on Spectral Characteristics of Dissolved Organic Matter in Composting With Different Conditioners and Leached Dewatered Sludge

Ze LU1,1; 2;... Bei-dou XI3,3;, De-zhi TAI1,1; 2;, Liang-quan LU1,1; 2;, Xiao-jie SUN1,1; 2;, Jun ZHANG1,1; 2; and Hua ZHANG1,1; 2; *; |Show fewer author(s)

Author Affiliations

¹1. College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541006, China

³3. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

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Figures & Tables(12)

Fig. 1. UV-Vis spectra of DOM during the composting process

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Fig. 2. Variation trends of SUVA₂₅₄ and SUVA₂₈₀ during the composting process

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Fig. 3. FTIR spectra of DOM in different composting periods

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Fig. 4. Emission fluorescence spectra of DOM

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Fig. 5. Synchronous spectra of DOM during composting process

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Fig. 6. The three-dimensional fluorescence peaks of DOM based on parallel factor analysis

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Fig. 7. Changes in the percentage of fluorescence components of DOM in different composting periods

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Table 1. Physicochemical properties of composting meterials

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Table 1. Physicochemical properties of composting meterials

	生物沥浸深度脱水污泥	甘蔗渣	秸秆	米糠	木屑
含水率/%	68±0.0	14±0.01	13±0.01	10±0.0	9±0.01
全碳/%	20.46±0.0	48.12±0.0	39.17±0.0	40.38±0.0	45.67±0.0
全氮/%	3.72±0.0	1.28±0.0	2.67±0.0	0.97±0.0	0.89±0.0
碳氮比	5.5±0.0	37.6±0.0	14.7±0.0	41.6±0.0	51.3±0.0
有机质/%	47.14±0.0	77.49±0.1	68.69±0.1	83.79±0.1	74.35±0.1
灰分/%	52.86±0.0	22.51±0.1	31.31±0.1	16.21±0.1	25.65±0.1

Table 2. Changes of UV-Vis spectral parameters during composting process

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Table 2. Changes of UV-Vis spectral parameters during composting process

Time/d	E₂₅₃/E₂₀₃				E₂₅₃/E₂₂₀				E₂₅₀/E₃₆₅				A₂₂₆_~₄₀₀
Time/d	T1	T2	T3	T4	T1	T2	T3	T4	T1	T2	T3	T4	T1	T2	T3	T4
0	0.16	0.22	0.11	0.11	0.37	0.42	0.28	0.26	9.10	11.66	12.36	9.55	8.91	13.06	8.03	9.60
3	0.30	0.25	0.25	0.26	0.58	0.53	0.55	0.61	10.35	13.85	8.74	12.82	21.43	21.10	23.66	16.76
6	0.41	0.27	0.28	0.27	0.57	0.55	0.55	0.60	5.40	8.24	5.72	6.24	60.21	30.65	33.80	27.93
10	0.30	0.35	0.29	0.27	0.52	0.53	0.53	0.51	3.95	4.20	3.52	3.98	36.45	65.93	35.52	36.41
14	0.32	0.30	0.28	0.27	0.54	0.54	0.53	0.52	4.29	3.66	3.55	3.32	43.51	48.36	36.24	34.12
21	0.32	0.29	0.28	0.27	0.54	0.53	0.55	0.53	3.69	3.20	3.12	3.61	51.57	34.16	33.81	36.76
28	0.31	0.28	0.27	0.28	0.54	0.52	0.55	0.55	3.46	3.16	3.39	3.01	50.91	45.07	58.75	38.16
35	0.29	0.28	0.33	0.27	0.56	0.51	0.55	0.54	3.09	3.28	3.39	3.17	38.56	47.32	45.81	38.78

Table 3. Ratio changes of specific FTIR parameters of DOM extracted from different composting treatment processes

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Table 3. Ratio changes of specific FTIR parameters of DOM extracted from different composting treatment processes

Time/d	1 647/3 435				1 647/2 974				1 647/1 406				1 647/1 112
Time/d	T1	T2	T3	T4	T1	T2	T3	T4	T1	T2	T3	T4	T1	T2	T3	T4
0	0.94	1.09	1.02	1.07	0.67	0.79	0.78	0.83	0.91	0.87	0.88	0.93	6.43	1.64	2.02	1.69
3	0.93	0.50	0.46	1.02	0.92	0.74	0.80	0.94	1.15	1.12	1.20	1.15	1.59	1.22	1.89	1.46
6	1.03	1.09	0.97	1.14	0.93	1.00	0.93	1.06	1.18	1.12	1.05	1.19	1.56	1.64	1.37	1.88
10	1.61	0.91	0.89	1.04	1.41	0.82	1.07	0.90	1.30	0.92	0.75	0.99	1.65	1.22	2.42	1.32
14	1.10	1.17	1.08	1.04	1.11	1.10	1.24	1.06	1.28	1.03	0.86	1.39	1.91	1.13	3.12	2.90
21	1.09	1.26	0.74	0.80	0.97	1.45	0.95	1.03	1.07	1.43	1.23	1.83	1.24	1.66	4.27	6.02
28	0.70	1.22	0.88	1.23	0.89	1.10	1.35	1.04	1.40	1.08	2.00	1.36	2.61	1.21	10.00	2.04
35	1.14	1.14	1.05	0.99	1.11	1.07	1.13	1.34	1.14	1.05	1.40	2.53	2.19	1.21	2.33	9.56

Table 4. The change of parameter from the synchrotron spectrum of DOM_during composting process

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Table 4. The change of parameter from the synchrotron spectrum of DOM_during composting process

Time/d	A₂₅₀_~₃₀₈				A₃₀₈_~₃₆₀				A₃₆₃_~₅₀₀
Time/d	T1	T2	T3	T4	T1	T2	T3	T4	T1	T2	T3	T4
3	0.50	0.60	0.55	0.59	0.17	0.15	0.18	0.15	0.27	0.20	0.22	0.21
14	0.23	0.14	0.20	0.19	0.22	0.28	0.25	0.25	0.47	0.51	0.49	0.49
28	0.20	0.13	0.12	0.14	0.23	0.31	0.25	0.23	0.49	0.49	0.56	0.56
35	0.15	0.14	0.22	0.15	0.26	0.30	0.23	0.34	0.51	0.50	0.47	0.55

Table 5. PAREFAC model identify the three different components of the DOM from the four composting treatments
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Table 5. PAREFAC model identify the three different components of the DOM from the four composting treatments
Components T1 T2 T3 T4
Ex/nm Em/nm Ex/nm Em/nm Ex/nm Em/nm Ex/nm Em/nm
C1 340 420 340 410 340 410 335 410
C2 275, 395 470 365, 395 470 365, 395 470 365, 390 460
C3 285 340 285 340 285 340 285 335

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Ze LU, Bei-dou XI, De-zhi TAI, Liang-quan LU, Xiao-jie SUN, Jun ZHANG, Hua ZHANG. Study on Spectral Characteristics of Dissolved Organic Matter in Composting With Different Conditioners and Leached Dewatered Sludge[J]. Spectroscopy and Spectral Analysis, 2022, 42(7): 2120

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Paper Information

Category: Orginal Article

Received: Jun. 30, 2021

Accepted: --

Published Online: Nov. 16, 2022

The Author Email:

DOI:10.3964/j.issn.1000-0593(2022)07-2120-10

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Physicochemical properties of composting meterials

Table 1. Physicochemical properties of composting meterials

Table 2. Changes of UV-Vis spectral parameters during composting process

Table 2. Changes of UV-Vis spectral parameters during composting process

Table 3. Ratio changes of specific FTIR parameters of DOM extracted from different composting treatment processes

Table 3. Ratio changes of specific FTIR parameters of DOM extracted from different composting treatment processes

Table 4. The change of parameter from the synchrotron spectrum of DOM during composting process

Table 4. The change of parameter from the synchrotron spectrum of DOM during composting process

Table 5. PAREFAC model identify the three different components of the DOM from the four composting treatments

Table 5. PAREFAC model identify the three different components of the DOM from the four composting treatments

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Table 4. The change of parameter from the synchrotron spectrum of DOM_during composting process

Table 4. The change of parameter from the synchrotron spectrum of DOM_during composting process