CIESC Journal ›› 2020, Vol. 71 ›› Issue (7): 3288-3295.DOI: 10.11949/0438-1157.20200042
• Energy and environmental engineering • Previous Articles Next Articles
Junhua FANG(),Qi TANG,Yang LI,Yaoyao LI,Qiuying LYU,Zhun FAN,Jian ZHOU,Jin XU
Received:
2020-01-13
Revised:
2020-03-24
Online:
2020-07-05
Published:
2020-07-05
Contact:
Junhua FANG
通讯作者:
方俊华
作者简介:
方俊华(1965—),男,博士,副教授,基金资助:
CLC Number:
Junhua FANG,Qi TANG,Yang LI,Yaoyao LI,Qiuying LYU,Zhun FAN,Jian ZHOU,Jin XU. Morphology of phosphorus and metal extraction behavior in sewage sludge during hydrothermal carbonization treatment[J]. CIESC Journal, 2020, 71(7): 3288-3295.
方俊华,唐琦,李杨,李遥瑶,吕秋颖,范准,周健,许劲. 污泥水热碳化中磷的形态变化及金属浸出行为[J]. 化工学报, 2020, 71(7): 3288-3295.
工业分析/%(质量)① | 元素分析/%(质量)① | H/C | O/C | 高位热值/ ( MJ·kg-1)③ | |||||
---|---|---|---|---|---|---|---|---|---|
VM | FC | Ash | C | H | O② | N | |||
30.99 | 0.10 | 68.91 | 17.83 | 3.16 | 7.36 | 2.74 | 2.13 | 0.27 | 9.26 |
Table 1 Physicochemical characteristics of sewage sludge
工业分析/%(质量)① | 元素分析/%(质量)① | H/C | O/C | 高位热值/ ( MJ·kg-1)③ | |||||
---|---|---|---|---|---|---|---|---|---|
VM | FC | Ash | C | H | O② | N | |||
30.99 | 0.10 | 68.91 | 17.83 | 3.16 | 7.36 | 2.74 | 2.13 | 0.27 | 9.26 |
P | Fe | Al | Ca | Mg | Si | Na | K | S |
---|---|---|---|---|---|---|---|---|
11.88 | 57.90 | 34.47 | 23.55 | 5.82 | 57.04 | 3.17 | 10.14 | 2.79 |
Table 2 Elements content of sewage sludge/(mg·g-1)
P | Fe | Al | Ca | Mg | Si | Na | K | S |
---|---|---|---|---|---|---|---|---|
11.88 | 57.90 | 34.47 | 23.55 | 5.82 | 57.04 | 3.17 | 10.14 | 2.79 |
样品 | 含量/(mg·g-1) | 回收率 /% | ||||||
---|---|---|---|---|---|---|---|---|
P | Ca | Fe | Al | P | Ca | Fe | Al | |
HC-160 | 14.72 | 26.79 | 62.42 | 7.24 | 81.45 | 74.77 | 70.86 | 13.81 |
HC-180 | 16.35 | 33.75 | 74.20 | 10.40 | 82.49 | 85.91 | 76.80 | 18.08 |
HC-200 | 18.65 | 38.51 | 79.88 | 12.26 | 82.67 | 86.10 | 72.61 | 18.73 |
HC-220 | 19.55 | 40.93 | 84.74 | 13.12 | 83.41 | 88.09 | 74.17 | 19.29 |
HC-240 | 19.99 | 41.43 | 86.29 | 14.45 | 83.71 | 87.49 | 74.11 | 20.85 |
HC-260 | 20.92 | 41.82 | 87.63 | 15.65 | 84.74 | 85.46 | 72.82 | 21.84 |
Table 3 Major element content in hydrochar
样品 | 含量/(mg·g-1) | 回收率 /% | ||||||
---|---|---|---|---|---|---|---|---|
P | Ca | Fe | Al | P | Ca | Fe | Al | |
HC-160 | 14.72 | 26.79 | 62.42 | 7.24 | 81.45 | 74.77 | 70.86 | 13.81 |
HC-180 | 16.35 | 33.75 | 74.20 | 10.40 | 82.49 | 85.91 | 76.80 | 18.08 |
HC-200 | 18.65 | 38.51 | 79.88 | 12.26 | 82.67 | 86.10 | 72.61 | 18.73 |
HC-220 | 19.55 | 40.93 | 84.74 | 13.12 | 83.41 | 88.09 | 74.17 | 19.29 |
HC-240 | 19.99 | 41.43 | 86.29 | 14.45 | 83.71 | 87.49 | 74.11 | 20.85 |
HC-260 | 20.92 | 41.82 | 87.63 | 15.65 | 84.74 | 85.46 | 72.82 | 21.84 |
样品 | H2O-P | NaHCO3-P | NaHCO3-Pi | NaHCO3-Po | NaOH-P | NaOH-Pi | NaOH-Po | HCl-P | Pi①/% |
---|---|---|---|---|---|---|---|---|---|
HC-160 | 0.04 | 0.45 | 0.42 | 0.03 | 8.85 | 5.90 | 2.95 | 4.54 | 74.07 |
HC-180 | 0.03 | 0.42 | 0.38 | 0.04 | 8.22 | 5.64 | 2.59 | 5.45 | 70.27 |
HC-200 | 0.02 | 0.42 | 0.42 | 0.01 | 7.99 | 7.39 | 0.60 | 6.15 | 74.88 |
HC-220 | 0.03 | 0.36 | 0.34 | 0.02 | 6.37 | 6.01 | 0.36 | 7.41 | 70.54 |
HC-240 | 0.01 | 0.29 | 0.20 | 0.09 | 2.46 | 2.25 | 0.21 | 12.91 | 77.09 |
HC-260 | 0.01 | 0.06 | 0.05 | 0.01 | 1.04 | 0.91 | 0.13 | 15.20 | 77.30 |
污泥 | 0.20 | 0.90 | 0.81 | 0.09 | 6.40 | 3.17 | 3.23 | 2.57 | 56.83 |
Table 4 Amounts of P in hydrochar and sludge extracted by Hedley sequential method/(mg·g-1)
样品 | H2O-P | NaHCO3-P | NaHCO3-Pi | NaHCO3-Po | NaOH-P | NaOH-Pi | NaOH-Po | HCl-P | Pi①/% |
---|---|---|---|---|---|---|---|---|---|
HC-160 | 0.04 | 0.45 | 0.42 | 0.03 | 8.85 | 5.90 | 2.95 | 4.54 | 74.07 |
HC-180 | 0.03 | 0.42 | 0.38 | 0.04 | 8.22 | 5.64 | 2.59 | 5.45 | 70.27 |
HC-200 | 0.02 | 0.42 | 0.42 | 0.01 | 7.99 | 7.39 | 0.60 | 6.15 | 74.88 |
HC-220 | 0.03 | 0.36 | 0.34 | 0.02 | 6.37 | 6.01 | 0.36 | 7.41 | 70.54 |
HC-240 | 0.01 | 0.29 | 0.20 | 0.09 | 2.46 | 2.25 | 0.21 | 12.91 | 77.09 |
HC-260 | 0.01 | 0.06 | 0.05 | 0.01 | 1.04 | 0.91 | 0.13 | 15.20 | 77.30 |
污泥 | 0.20 | 0.90 | 0.81 | 0.09 | 6.40 | 3.17 | 3.23 | 2.57 | 56.83 |
污泥 | HC-160 | HC-180 | HC-200 | HC-220 | HC-240 | HC-260 |
---|---|---|---|---|---|---|
6.6 | 5.9 | 6.1 | 6.6 | 6.9 | 7.1 | 7.3 |
Table 5 pH of samples at different hydrothermal carbonization temperatures
污泥 | HC-160 | HC-180 | HC-200 | HC-220 | HC-240 | HC-260 |
---|---|---|---|---|---|---|
6.6 | 5.9 | 6.1 | 6.6 | 6.9 | 7.1 | 7.3 |
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