Immigration, transformation, and emission control of sulfur and nitrogen during gasification of MSW: Fundamental and engineering review

Cheng, Shuchao; Ding, Xueyu; Dong, Xinxin; Zhang, Mengjie; Tian, Xinqi; Liu, Yang; Huang, Yaji; Jin, Baosheng

doi:10.1016/j.crcon.2023.03.003

Cited by 15 publications

(2 citation statements)

References 131 publications

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“…Over time, this leads to a weakly acidic solution. Studies have shown that pH values have a significant negative correlation with nitrate content but no significant correlation with ammonium and nitrite 33,36,37 . Therefore, a weakly acidic solution promotes the conversion of nitrite to nitrate, but it has no significant effect on ammonium and nitrite, resulting in no accumulation of nitrite and a gradual decrease in its content.…”

Section: Variation Characteristics Of Inorganic N Concentrations In T...mentioning

confidence: 99%

Unveiling the dynamic of nitrogen through migration and transformation patterns in the groundwater level fluctuation zone of a different hyporheic zone sediment

Abdulhamid,

Duan,

Yaqiao

et al. 2024

Sci Rep

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This study investigates the impact of water levels and soil texture on the migration and transformation of nitrate (NO3−-N) and ammonium (NH4+-N) within a soil column. The concentrations of NO3−-N gradually decreased from an initial concentration of 34.19 ± 0.86 mg/L to 14.33 ± 0.77 mg/L on day 70, exhibiting fluctuations and migration influenced by water levels and soil texture. Higher water levels were associated with decreased NO3−-N concentrations, while lower water levels resulted in increased concentrations. The retention and absorption capacity for NO3−-N were highest in fine sand soil, followed by medium sand and coarse sand, highlighting the significance of soil texture in nitrate movement and retention. The analysis of variance (ANOVA) confirmed statistically significant variations in pH, dissolve oxygen and oxidation–reduction potential across the soil columns (p < 0.05). Fluctuating water levels influenced the migration and transformation of NO3−-N, with distinct patterns observed in different soil textures. Water level fluctuations also impacted the migration and transformation of NH4+-N, with higher water levels associated with increased concentrations and lower water levels resulting in decreased concentrations. Among the soil types considered, medium sand exhibited the highest absorption capacity for NH4+-N. These findings underscore the significant roles of water levels, soil texture, and soil type in the migration, transformation, and absorption of nitrogen compounds within soil columns. The results contribute to a better understanding of nitrogen dynamics under varying water levels and environmental conditions, providing valuable insights into the patterns of nitrogen migration and transformation in small-scale soil column experiments.

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Section: Variation Characteristics Of Inorganic N Concentrations In T...mentioning

confidence: 99%

Unveiling the dynamic of nitrogen through migration and transformation patterns in the groundwater level fluctuation zone of a different hyporheic zone sediment

Abdulhamid,

Duan,

Yaqiao

et al. 2024

Sci Rep

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“…With rapid economic development and urban population growth, the amount of municipal solid waste (MSW) in China has been rising [1], which has led to rising environmental pollution and a shortage of land resources [2]. Currently, the amount of MSW generated in China has reached 249 million tons, and two-thirds of the country's cities are suffering from the plight of a "Garbage Siege" [3].…”

Section: Introductionmentioning

confidence: 99%

Prediction and Feed-In Tariffs of Municipal Solid Waste Generation in Beijing: Based on a GRA-BiLSTM Model

Zhang,

Liu

2024

Sustainability

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To cope with the increasing energy demand of people and solve the problem of a “Garbage Siege”, most cities have begun to adopt waste power generation (WTE). Compared to other WTE technologies, incineration has proven to be the most efficient technology for municipal solid waste (MSW) treatment. Therefore, to further explore the economic feasibility of MSW incineration plant construction, this study established a multi-factor prediction of MSW generation based on the GRA-BiLSTM model. By fully considering the relationship between the change in feed-in tariff (FIT) and the building of an incineration plant in Beijing, the economic feasibility of building an incineration plant is discussed based on the three scenarios set. The experimental results showed that (1) the combined model based on the GRA-BiLSTM showed good applicability for predicting MSW generation in Beijing, with MAE, MAPE, RMSE, and R2 values of 12.47, 5.97%, 18.5580, and 0.8950, respectively. (2) Based on the three scenarios set, the incineration power generation of Beijing MSW will show varying degrees of growth in 2022–2035. In order to meet future development, Beijing needs to build seven new incinerators, and the incineration rate should reach 100%. (3) According to setting different feed-in tariffs, based on the economic feasibility analysis, it is found that the feed-in tariff of MSW incineration for power generation in Beijing should be no less than $0.522/kWh. The government should encourage the construction of incineration plants and give policy support to enterprises that build incineration plants.

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Source analysis of chlorine in municipal solid waste under waste classification: a case study of Hangzhou, China

Long,

Hu,

Liu

et al. 2024

Environ Sci Pollut Res

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Immigration, transformation, and emission control of sulfur and nitrogen during gasification of MSW: Fundamental and engineering review

Cited by 15 publications

References 131 publications

Unveiling the dynamic of nitrogen through migration and transformation patterns in the groundwater level fluctuation zone of a different hyporheic zone sediment

Unveiling the dynamic of nitrogen through migration and transformation patterns in the groundwater level fluctuation zone of a different hyporheic zone sediment

Prediction and Feed-In Tariffs of Municipal Solid Waste Generation in Beijing: Based on a GRA-BiLSTM Model

Source analysis of chlorine in municipal solid waste under waste classification: a case study of Hangzhou, China

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