Flue Gas Circulating Sintering Based on Biomass Fuel on Reduction of NO&lt;sub&gt;x&lt;/sub&gt; and SO&lt;sub&gt;2&lt;/sub&gt; Emission

Kang, Youngjong; Liu, Chao; Zhang, Yuzhu; Xing, Hongwei; Zhao, Kai

doi:10.2355/isijinternational.isijint-2019-505

Cited by 11 publications

(5 citation statements)

References 21 publications

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“…For experimental data and parameters' correlation analysis and evaluation, Pearson correlation is used. The drawing software is Origin V9 [38][39][40]. Firstly, the impact of different proportions of remediation agents on soil physical and chemical properties was analyzed.…”

Section: Analysis Of the Remediation Effect Of Different Proportions ...mentioning

confidence: 99%

Innovative Practice of Heavy Metal Soil Remediation Technology under the Background of Rural Revitalization by Integrating Agriculture, Culture and Tourism

Wu,

Wan

2024

Pol. J. Environ. Stud.

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With the development and modernization of rural economies, the integration of agriculture, cultural tourism, and other fields has gradually become a new driving force for promoting rural revitalization. However, in recent years, the development of mines and the utilization of resources have led to severe heavy metal pollution of farmland soil, causing significant food safety risks and economic losses, which pose serious challenges to the integration of agriculture, culture, and tourism. Therefore, China has invested a lot of attention in addressing the issue of soil remediation in abandoned rural mining areas. The study focuses on an abandoned mining area polluted by heavy metals such as Cd, Zn, and Cu in a certain area. Two materials, biochar and compost, were added to the soil in the polluted area, and the weight ratios of biochar and compost were set to 0:100, 10:90, 20:80, 40:60, 60:40, and 100:0. A new type of biochar was prepared by mixing two materials at high temperatures, and its effects on the pH and organic carbon content of soil in heavy metal polluted rural abandoned mining areas were explored. The effective removal and adsorption of heavy metals in the soil were also investigated, as was the promotion of crop growth in the soil area. This indicates that the use of biochar and compost can significantly repair heavy metal contaminated soil in mining areas and improve soil availability. Meanwhile, research has found that the integration of agriculture, culture, and tourism provides a unique perspective on soil remediation technology, which may involve maintaining rural cultural traditions, enhancing the attractiveness of rural tourism, and ensuring food safety and agricultural sustainability. Therefore, the selection and implementation of repair technologies need to consider multiple factors to ensure the triple benefits to the economy, society, and environment.

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Section: Analysis Of the Remediation Effect Of Different Proportions ...mentioning

confidence: 99%

Innovative Practice of Heavy Metal Soil Remediation Technology under the Background of Rural Revitalization by Integrating Agriculture, Culture and Tourism

Wu,

Wan

2024

Pol. J. Environ. Stud.

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“…This study used a pot experiment to explore the effect of the hyper-accumulating plant Solanum nigrum-cadmium-tolerant strain on cadmium enrichment in soil. The transfer coefficient is generally used to determine whether a plant conforms to the characteristics of hyper-accumulating plants, which represents the pattern of heavy metals being transferred from soil to the plant body [39,40]. The effect of Cd 2+ concentration on the dry weight of Solanum nigrum and the distribution pattern of Cd 2+ in the plants are shown in Figure 6.…”

Section: Analysis Of the Effect Of Solanum Nigrum-cadmium-resistant S...mentioning

confidence: 99%

Microbial–Plant Collaborative Remediation of Cd-Contaminated Wastewater and Soil in the Surrounding Area of Nuclear Power Plants and Risk Assessment

Wei,

Song

2023

Sustainability

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The continuous development of China’s nuclear industry has caused an increasingly serious problem of heavy metal pollution in the ecological environment. A survey of the current situation shows that the quality of China’s groundwater bodies and their surrounding ecological environment has been severely affected. China has started to devote more attention to the issue of nuclear emissions and pollution. In view of this, this study takes an area contaminated by nuclear power plant emissions as the object of research and uses plant–microbe synergy to remediate the cadmium-contaminated environment. Cadmium-tolerant strains were isolated from the soil and identified as Serratia marcescens. The morphological characteristics of the cadmium-tolerant strains were observed with electron microscopy in the presence or absence of cadmium ions. The removal of Cd2+ from wastewater was analyzed in four experimental groups: Cd2+ removal from Cd2+-contaminated wastewater by combining a Cd-tolerant strain with Cd-flower, Cd-tolerant strain with Cd-flower, Cd-flower with alkali treatment, and Cd-tolerant strain with alkali treatment. This study innovatively treated Cd ion concentrations of 50 mg/L, 100 mg/L, 200 mg/L, and 300 mg/L. The results showed that the cadmium-tolerant strains were more densely concentrated in the treated Phyllostachys than in the untreated condition. This indicates that the Cd-tolerant strains were effectively enhanced by the alkali treatment of Phyllostachys spp. and that the adsorption of Cd ions to the Cd-tolerant strains was improved. In the presence of Cd2+ flowers only, the best removal of Cd2+ was achieved at a concentration of 50 mg/L, with a removal rate of 74.10%; the addition of Cd-tolerant strains resulted in a removal rate of 91.21%. When the alkali treatment was applied to the flat bamboo flowers, the removal rate was 84.36% when the concentration of Cd2+ was 100 mg/L. Then, when the cadmium-tolerant strain was added to the treated flat bamboo flower group, the maximum removal rate was 89.74% when the concentration of Cd2+ was 100 mg/L. The cadmium ion content of Cd2+ increased positively with increasing experimental time. In addition, the quasi-secondary correlation coefficients for cadmium ions in Lobelia were all greater than 0.9905, indicating that the adsorption kinetics were significantly correlated with the quasi-secondary kinetics. The analysis of heavy metal enrichment in Lobelia was divided into four groups, with Lobelia showing the best tolerance and cadmium adsorption capacity at a cadmium concentration of 20 mg/L. The results of super-enrichment coefficients showed that the enrichment coefficients of Lobelia ranged from 1.03 to 1.97, with values greater than 1. All these results indicate that the combination of cadmium-tolerant strains and plants can effectively remediate nuclear-contaminated soil and wastewater, thus improving soil availability and water regeneration, and improving the human living environment.

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“…As shown in Group 1 of Table 1, the experimental raw materials were from a steel sintering workshop in Tangshan, the basicity of the sintering mixture was 1.9, the content of MgO was 2.0%, the Al 2 O 3 content was 1.5%, and more than 80% the fuel particle size is larger than 3 mm. In order to reduce the melting temperature of sintering raw materials, improve the addition amount of biomass fuel, and the quality of sintering ore, the influence rules of basicity, MgO content, and Al 2 O 3 content on sintering properties are studied, and the basicity and MgO and Al 2 O 3 contents of the sintering raw material were adjusted using the analytical purity reagents of CaO, SiO 2 , MgO, and Al 2 O 3 [16][17][18]. Group 1 was considered the basis for the sintering material.…”

Section: Experimental Materialsmentioning

confidence: 99%

Analysis of Rational Proportion of Raw Materials Based on Biomass

et al. 2021

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Most of the air pollutants in the steel industry come from the sintering process, and the air pollutants produced by the sintering process mainly come from the sinter fuel (coke breeze). The S and N content of biomass fuel is low; therefore, biomass fuel is used instead of coke breeze for sintering to reduce the emission of the sinter flue gas pollutants. However, the use of biomass fuel reduces the sintering layer temperature, which results in the deterioration of the sinter properties. In order to ensure the quality of sintering base on biomass fuel, the thermodynamic calculation and related experiments were carried out, the effects of different basicity, MgO and Al2O3 content on the formation of low melting point minerals in sintered mixture were studied, and the suitable composition of sintered mixture was determined in this paper, so as to reduce the liquid phase formation temperature of sinter and increase in biomass fuel addition, which provided theoretical support for the application of biomass fuel in sintering. Experimental results indicate that the suitable conditions for the low-temperature sintering were a basicity of 2.0, and MgO and Al2O3 contents of 1.0% and 1.8%, respectively. Under this condition, more biomass fuel can be used to replace coke breeze, and the emission of flue gas pollutants can be greatly reduced.

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Flue Gas Circulating Sintering Based on Biomass Fuel on Reduction of NO<sub>x</sub> and SO<sub>2</sub> Emission

Cited by 11 publications

References 21 publications

Innovative Practice of Heavy Metal Soil Remediation Technology under the Background of Rural Revitalization by Integrating Agriculture, Culture and Tourism

Innovative Practice of Heavy Metal Soil Remediation Technology under the Background of Rural Revitalization by Integrating Agriculture, Culture and Tourism

Microbial–Plant Collaborative Remediation of Cd-Contaminated Wastewater and Soil in the Surrounding Area of Nuclear Power Plants and Risk Assessment

Analysis of Rational Proportion of Raw Materials Based on Biomass

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