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The aim of this research was to understand current knowledge and perceptions regarding bioplastics. Results were gathered through an online survey of 2518 nationally representative Australians. The results indicate that the Australian public’s knowledge of bioplastics is low, but perception, particularly of biodegradable plastics, is positive. Biodegradable plastics were perceived as better for the...
Growing world population along with fast economic growth and increased living standards have increased the municipal waste generation making its management be a foremost global issue. The problem is even more serious in urban areas as its improper management prompts tainting of soil, water, and environment which create public health risks. These problems of waste disposal and management were usually...
The issue of plastic pollution is now recognised as a catastrophic global crisis. Single-use plastics have attracted much attention in terms of elimination and mitigation measures. The concept of circular economy aims to attain a state where waste no longer exists. Pathways to eliminate or adapt stages of the life cycle, long before the end-of-life phase, are necessary to address single-use plastics...
One of the main drivers for companies to perform environmental improvements is economic benefit, either by obtaining a more valuable product or gaining new customers. Circular economy combines environmental improvements with these drivers to achieve higher and quicker benefits. This paper is a case study on packaging eco-design aligned with circular economy strategy along the production chain. Life...
Energy-related carbon dioxide (CO 2 ) emissions dropped 12% between 2007 and 2016 in the United States (U.S.), while the gross domestic product (GDP) increased by 19%. empirical data related to the decoupling of carbon emissions from economic growth in the U.S. provides a useful study pilot opportunity and serves as a good example for other countries to learn about CO 2 emission mitigation. This...
Groundwater pollution around landfill sites is becoming a global environmental problem. The hydrochemistry of dissolved organic matter (DOM) in landfill leachate-contaminated groundwater plume has been investigated extensively. The spatial migration and evolution of DOM, the relationship between hydrochemistry and DOM dynamics, and the role of microorganisms in DOM transformation are still largely...
Food waste is a global issue that is currently gaining attention in light of food security problems and related environmental issues. Studies related to household food waste have looked at consumer behavior in attempting to explain household food waste behaviors. However, standing for material infrastructure, food accessibility has been suspected to indirectly impact household food waste behaviors...
Green infrastructure complements grey infrastructure to provide effective urban stormwater management. Design of coupled green and grey infrastructure systems need a systems-based analysis considering multiple criterion. This study used analytic hierarchy process (AHP) and life cycle costing (LCC) to evaluate environmental and economic benefits of various types of coupled green and grey infrastructure...
The success of the sharing economy in China has attracted worldwide attention. Alongside the standard model of the customer-to-customer sharing of idle/superfluous resources, the new model of business-to-customer sharing of new resources has been gradually thriving. However, beside the advantages, there are some drawbacks, such as system redundancy, which have so far been ignored. This paper addresses...
The energy industry in China is responsible for the largest water withdrawal and consumption in the secondary industry. In addition to the large quantities, another important feature of energy-water use in China is a critical spatial mismatch between water consumption and water availability. We used a multiregional input-output model to investigate virtual water of the energy industry in the Chinese...
Resource recovery based wastewater services, capable of converting wastewater into clean water, energy, and fertilizer, begun to gain global attention. However, Water Footprints (WFs) of resource recovery based wastewater systems remain unknown. This study provided the first assessment on WFs of resource recovery based wastewater systems. A process-based approach was used to estimate WFs of five representative...
Circular measures such as long-life designs, reuse, repair and recycling have been suggested for prolonging scarce metal life cycles and reducing the dependence on primary resources. This paper explores to what extent circular measures could mitigate metals scarcity when adopted to complex products. Based on three real cases, the effect of extending the use of laptops, smartphones and LED systems...
The recycling and recovery of water and resources from wastewater is necessary to maintain sustainable use of our limited global freshwater resources. To do so, we need to be able to distinguish and reference different water and wastewater types. In this paper, we present a method to classify and assign unique numerical identification codes to different water and wastewater types based on their water...
The scale effect of vegetation restoration on soil and water conservation has received little attention, despite numerous studies on the assessments of vegetation restoration at different spatial scales. This study investigated the scale effect of vegetation restoration on soil erosion and water yield at Yanhe watershed, Chinese Loess Plateau. It provides the site-based temporal and spatial varying...
Due to increased policy attention on circular economy strategies, many studies have quantified material use and recovery at national and global scales. However, there has been no quantitative analysis of the unrecovered waste that can be potentially reintegrated into the economy as materials or products. This can be interpreted as the gap of material circularity. In this paper we define the circularity...
The circular economy (CE) is perceived as a sustainable economic system where the economic growth is decoupled from the resources use, through the reduction and recirculation of natural resources. In the shift towards the CE, quantifying the circularity of products and services (or their contribution to the CE) is crucial in designing policies and business strategies, and prioritizing sustainable...
With largest proportion in power supply structure and intensive air pollutant emissions, thermal power generation (TPG) is critical to China’s national actions on energy conservation and pollutant mitigation. Regional disparities of socioeconomic conditions intensify the complexity of region-oriented policy making. With this circumstance, this paper explores the spatiotemporal features and driving...
Zero waste manufacturing (ZWM) is a concept to support countries transition to a circular economy by developing manufacturing technologies and systems that eliminate waste across entire waste value chains to the fullest extent possible through reuse and recycling. Implementation of ZWM, particularly in dense urban settings such as Singapore, presents challenges for stakeholders, which stem from issues...
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