This page has only limited features, please log in for full access.
Phosphogypsum (PG) is an industrial waste from the production of phosphoric acid and phosphate fertilizer. Disposal and landfill of PG pose significant environmental problems due to its hazardous components. Although many researchers have explored the possibility of PG recycling, challenges still exist before it can be high-effectively reused. In particular, a great deal of recent attention has been attracted to explore using PG as raw material to manufacture sustainable composites. The impurities movement, recycling efficiency, and environmental impacts have to be further investigated. This review article summarized the state of the art of the purification process, application areas, and the environmental impacts of PG waste. The main challenges and potential application approaches were discussed. This article is focused on reviewing the details of the PG reusing which benefits the readers on learning the knowledge from previous efforts. The main challenges of reusing PG were discussed from the chemical, physical, and materials perspectives.
Kai Ren; Na Cui; Shuyuan Zhao; Kai Zheng; Xia Ji; Lichao Feng; Xin Cheng; Ning Xie. Low-Carbon Sustainable Composites from Waste Phosphogypsum and Their Environmental Impacts. Crystals 2021, 11, 719 .
AMA StyleKai Ren, Na Cui, Shuyuan Zhao, Kai Zheng, Xia Ji, Lichao Feng, Xin Cheng, Ning Xie. Low-Carbon Sustainable Composites from Waste Phosphogypsum and Their Environmental Impacts. Crystals. 2021; 11 (7):719.
Chicago/Turabian StyleKai Ren; Na Cui; Shuyuan Zhao; Kai Zheng; Xia Ji; Lichao Feng; Xin Cheng; Ning Xie. 2021. "Low-Carbon Sustainable Composites from Waste Phosphogypsum and Their Environmental Impacts." Crystals 11, no. 7: 719.
Alleviating human sufferings during and in the aftermath of disasters is one of the most important goals in humanitarian relief logistics. The lack of relief commodities, especially life-saving items, is a life-threatening loss to victims and must be considered when making emergency supply allocation and transportation decisions, even in the pre-disaster prepositioning phase. This paper proposes a scenario-based stochastic program that integrates the decisions of prepositioning facility locations, quantities of stocked emergency supplies, and service allocations in each scenario in the same modeling framework. The estimation of victims’ losses for waiting for emergency supplies is measured in the typical deprivation cost function and treated as one of the main bases of decision making, besides traditional transportation costs, in determining the service allocation strategies in each scenario. Specifically, a case study with data from the hurricane threat in the Gulf Coast area of the US was conducted to demonstrate the application of this model and the significance of considering victims’ welfare loss in humanitarian relief logistics. Some interesting managerial insights were also drawn from a series of numerical experiments and sensitivity analyses.
Linlin Zhang; Na Cui. Pre-Positioning Facility Location and Resource Allocation in Humanitarian Relief Operations Considering Deprivation Costs. Sustainability 2021, 13, 4141 .
AMA StyleLinlin Zhang, Na Cui. Pre-Positioning Facility Location and Resource Allocation in Humanitarian Relief Operations Considering Deprivation Costs. Sustainability. 2021; 13 (8):4141.
Chicago/Turabian StyleLinlin Zhang; Na Cui. 2021. "Pre-Positioning Facility Location and Resource Allocation in Humanitarian Relief Operations Considering Deprivation Costs." Sustainability 13, no. 8: 4141.
Anti-icing is a critical topic in durability assessment for pavement infrastructures, and it varies according to local policies. To provide sufficient information to winter maintenance agencies, and help compare the merits and shortcomings of each strategy, this review summarizes the widely used anti-icing strategies, including elastic surfaces or high-friction overlays, asphalt binders mixed with anti-icing additives, pavement heating technologies, deicers, and fixed automated spray technology, from academic and practical perspectives, as well as explore the impact of deicers on the durability of concrete materials. Furthermore, the costs of each method were compared to evaluate the feasibility of them. This review not only provides a summary of previous anti-icing strategies, but also sheds light on future research trends that may help address the challenges of current anti-icing strategies, and further enhance anti-icing efficiency and reduce life cycle costs.
Shujuan Xu; Zhiliang Zhou; Lichao Feng; Na Cui; Ning Xie. Durability of Pavement Materials with Exposure to Various Anti-Icing Strategies. Processes 2021, 9, 291 .
AMA StyleShujuan Xu, Zhiliang Zhou, Lichao Feng, Na Cui, Ning Xie. Durability of Pavement Materials with Exposure to Various Anti-Icing Strategies. Processes. 2021; 9 (2):291.
Chicago/Turabian StyleShujuan Xu; Zhiliang Zhou; Lichao Feng; Na Cui; Ning Xie. 2021. "Durability of Pavement Materials with Exposure to Various Anti-Icing Strategies." Processes 9, no. 2: 291.
Lightweight aggregate concrete manufactured by solid waste or recycled by-products is a burgeoning topic in construction and building materials. It has significant merits in mitigating the negative impact on the environment during the manufacturing of Portland cement and reduces the consumption of natural resources. In this review article, the agricultural and industrial wastes and by-products, which were used as cementitious materials and artificial lightweight aggregate concrete, are summarized. Besides, the mechanical properties, durability, and a few advanced microstructure characterization methods were reviewed as well. This review also provides a look to the future research trends that may help address the challenges or further enhance the environmental benefits of lightweight aggregate concrete manufactured with solid waste and recycled by-products.
Jiyu Wang; Kai Zheng; Na Cui; Xin Cheng; Kai Ren; Pengkun Hou; Lichao Feng; Zonghui Zhou; Ning Xie. Green and Durable Lightweight Aggregate Concrete: The Role of Waste and Recycled Materials. Materials 2020, 13, 3041 .
AMA StyleJiyu Wang, Kai Zheng, Na Cui, Xin Cheng, Kai Ren, Pengkun Hou, Lichao Feng, Zonghui Zhou, Ning Xie. Green and Durable Lightweight Aggregate Concrete: The Role of Waste and Recycled Materials. Materials. 2020; 13 (13):3041.
Chicago/Turabian StyleJiyu Wang; Kai Zheng; Na Cui; Xin Cheng; Kai Ren; Pengkun Hou; Lichao Feng; Zonghui Zhou; Ning Xie. 2020. "Green and Durable Lightweight Aggregate Concrete: The Role of Waste and Recycled Materials." Materials 13, no. 13: 3041.