Resource utilization and development of phosphogypsum …
Phosphogypsum (PG) is a bulk industrial solid waste of wet-process phosphoric acid production. Every ton of phosphoric acid production generates as many as 4–6 tons of PG, including more than 90% of CaSO 4 ·2H 2 O, a small amount of phosphorus, fluorine, organic matter, oxides, heavy metals, radioactive substances and other impurities that have serious …
Estimation and analysis of municipal food waste and resource
With rapid urbanization, municipal food waste (MFW), which is an important part of municipal solid waste, has attracted considerable attention owing to its environmental impact and polluting nature. There has been little research on the quantity and distribution of food waste (FW) produced in China. This study focused on a systematic estimation and analysis of MFW …
History and Current State of Waste Management in …
waste management in Japan. At present, Japan has a solid system for waste management and recycling. However, Japan also experienced problems similar to those facing today's developing countries. We hope this pamphlet will help you understand the problems Japan encountered in the past, as well as the measures
Material reuse and recycling in construction works in Japan
Although the basic concept to reduce waste generation and to promote reuse and recycling is to separate construction waste to the extent feasible from other waste, some portions will remain in a mixed state. The amount of mixed construction waste treated offsite was approximately 10 …
Construction and Optimization Strategy for Collaborative …
Construction and demolition waste (C&DW) constitutes the most significant portion of solid waste in urban areas and holds substantial potential for resource utilization (Bao and Lu, 2021, Hao et al., 2019, He et al., 2022).In alignment with its strategic environmental governance objectives, the Chinese government has initiated a framework that is spearheaded by …
Environmental impacts and the future prospects of waste utilization …
As 24 % of all natural resources are extracted globally for construction activities, the construction industry is the primary cause of resource depletion and a primary producer of waste [1], [2].Beyond the scarcity of natural resources, extracting raw materials for the civil construction sector introduces a range of additional environmental repercussions that require …
Solid Waste Management and Recycling Technology of …
This booklet introduces some of leading Japanese waste disposal and recycling technologies. We hope to create a material-recycle society that generates as little waste as possible and …
Investigation and Research on Utilization Rate of Construction Waste
Investigation and Research on Utilization Rate of Construction Waste Resource in Wuhan. Botao Zhu 1, Zuxu Zou 1 and Yueyang Liu 1. Published under licence by IOP Publishing Ltd IOP Conference Series: Earth and Environmental Science, Volume 766, 5th International Workshop on Renewable Energy and Development, 23-25 April 2021, Chengdu, China …
Insight into the cooperation behavior among supply …
The greatest approach to address CDW is to utilize it as a resource, yet in China, resource utilization is barely 5% (Ding et al., 2023). Although resource utilization pilot cities cur-rently achieve a resource utilization rate of 40%, the value is still much lower than that of developed countries 90% (Zheng et al., 2023).
Reduction of natural resource consumption in cement production in Japan
According to Japanese government policy, the input of natural resources should be minimized and input resources should be utilized to the greatest extent possible so that, eventually, minimum waste is generated. The cement industry of Japan has worked hard to maximize waste utilization. Focusing on the cumulative amounts of the elements needed for …
Sustainable Utilization of Construction and Demolition Waste
Another study stated that construction waste constitutes about 29% of the solid waste stream in the USA (Rogoff and Williams 1994). In Canada, 35% of the space in landfills is taken up by construction waste, and over 50% of waste in a typical UK landfill could be construction waste (Ferguson et al. 1995).
Exploring the environmental properties and resource utilization …
Beijing-Tianjin-Hebei region is a capital economic circle for the future. Promoting the coordinated development of its population, economy, resources and environment is a major national strategy. And as towns and cities continue to expand, the volume of construction waste is gradually expanding, posing a major challenge to the sustainable development of the …
Cost efficiency of recycling and waste disposal in Japan
This study uses the stochastic cost frontier models to investigate recycling cost efficiencies for 1,809 municipalities in Japan from 2011 to 2018. Our major findings are as follows. A U-shaped relationship exists between the waste management cost per ton and recycling rate. The current recycling rate in Japan is much higher than the per ton cost-minimizing recycling rate.
Material reuse and recycling in construction works in Japan
First, the national policy, including the regular survey and action plan, is summarized. Second, the current status of the generation, treatment, and reuse/recycling of …
PowerPoint プレゼンテーション
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History and Current State of Waste Management in …
At present, Japan has a solid system for waste management and recycling. However, Japan also experienced problems similar to those facing today's developing countries. We hope this …
Evolutionary game model of construction enterprises and construction …
Japan focuses on CDW resource utilization. CDW in Japan is divided into three categories: industrial waste, construction waste and construction mixed waste, all crushed and screened, processed into recycled products, and used in different fields (Wang et al., 2015).
Review on zero waste strategy for urban construction and …
To avoid further environmental degradation from the construction industry with a high ecological footprint, the resource utilization of CDW has gained attention as an effective way to make the carbon footprint of the construction industry be reduced [12].Before 2015, few studies related to CDW management were reported; nonetheless, after 2015, the reuse of CDW has …
Improving Contractors' Participation of Resource Utilization …
This paper develops a simulation model for analyzing how government incentives and punishments improve contractors' participation in resource utilization of construction and demolition waste (RUCDW) based on system dynamics theory. The construction industry's long-term objective is to become more sustainable and resource-effective, and as part of this …
Coevolution Mechanism of Remanufacturer–Construction …
The utilization of resources plays a crucial role in mitigating the environmental pollution issue that improper disposal of construction and demolition waste (CDW) causes. However, the slow growth of the recycled building materials market limits the development of CDW resource utilization. Green value co-creation among remanufacturers, construction …
Sustainable Waste Management in Japan: Challenges, …
Japan is subject to global interest due to its waste management system, which aims for sustainability and is known for its efficiency. The purpose of this study is to examine Japan's steps towards sustainable waste management practices and highlight its formation, achievements, problems, and prospects for the future. Through a comprehensive review of …
Public Procurement & Circular Economy in Japan
Resource Productivity in Japan Fundamental Plan for Establishing a Sound Material-Cycle Society (4th,2018) •Integrated Measures toward a Sustainable Society …
Sustainable Utilization of Phosphogypsum in Multi-Solid Waste …
This study contributes to sustainable construction practices by exploring the use of phosphogypsum, a commonly discarded byproduct, in the production of recycled aggregates. Addressing both environmental and economic aspects of sustainability, we investigate the feasibility of employing phosphogypsum as a primary raw material, in collaboration with …
Evolutionary game and simulation analysis of construction waste …
In current construction waste resource management processes, the effect of government supervision is unclear, and illegal treatment and low-quality reproduction of recycling and reprocessing enterprises by construction units are common. To improve the degree of resource utilization of construction waste and deeply explore the role of its key influencing …
The Concept and Strategy of Territorial Spatial Planning …
1.2 The Great Harm of Construction Waste. First, the impact on the ecological environment. Construction waste in the pile, loading and unloading, transportation, landfill and other links, will have a negative effect on the surrounding air quality; construction waste in the open suburban site pile or landfill, after long-term rainwater erosion, groundwater infiltration …
Optimizing Construction Waste Recycling: Strategies, …
The article finishes by addressing construction waste recycling issues and possibilities, highlighting the necessity of stakeholder engagement, legislative assistance, and innovative technology in ...
(PDF) Research on Comprehensive Utilization of Construction Waste …
There are 19 enterprises planning or constructing construction waste resource utilization in Qingdao, and all of them is included in the city's construction waste resource utilization supervision information platform. ... Architecture Technology. 2012, Vol 7 p598. Pu Yunhui and Tang Jialing, Enlightenment of Japan's Construction and Demolition ...
Why Japan's circular built environment makes economic sense
We examined the six building materials with the most substantial carbon footprint and resource consumption: cement, steel, aluminium, plastics, glass and gypsum. We found …
Solid Waste Management and Recycling Technology of …
recycling technologies, which effectively turn waste into resources or appropriately dispose of it. Due to economic development, industrialization and increasing population, problems related to the expanded consumption and depletion of resources, and the increased output of wide-ranging types of waste are becoming more serious than ever.
Construction Waste Treatment in JAPAN
・More than 800 thousand m3 of wastes were dumped on a mountain by a treatment operator over 10 years. ・10 billion yen was used for restoration and recovery of the site but only a part …