Behavior Of Waste Research Articles

Exploring waste separation using an extended theory of planned behavior: a comparison between adults and children.

This study applied an extended model of the theory of planed behavior (TPB) to compare the differences in waste separation behavior between children (ages 9 to 12, N = 339) and adults (ages 18 to 66, N = 379). We examined the relations among waste separation attitude, subjective norm, perceived behavioral control, knowledge, awareness, intention, and behavior. The results showed waste separation knowledge of children was less than that of adults. Structure equation model results also revealed robust differences between children and adults. For adults, TPB variables (attitude, subjective norm, and perceived behavioral control) and knowledge are significantly positively related to their waste separation intention. Meanwhile, perceived behavioral control and intention are positively related to adults' behavior. However, for children, only perceived behavioral control and awareness are positively related to intention, and perceived behavioral control is positively related to behavior. Moreover, the predictive power of the extended TPB model on children's waste separation intention and behavior are lower than those of adults. The different results may be due to children's immature cognitive abilities. This study enhanced the understanding of the different waste separation behavior determinants between children and adults. The findings are useful for developing tailored policies and promoting children's waste separation behavior.

Understanding the food waste behaviour in university students: An application of the theory of planned behaviour

Food waste has a significant impact on the environment, national economies, and food security, necessitating appropriate action by policymakers. Food waste is prevalent among the young generation, so it becomes prudent to understand their food waste behaviour, involving the identification and evaluation of significant variables. This study seeks to comprehend their food waste behaviour as well as their intent to engage in such behaviour. An extended theory of planned behaviour was utilized to achieve the objectives, and a conceptual model and hypotheses were formulated accordingly. Some extensive constructs were incorporated with the theory of planned behaviour's major constructs. Data was collected via a questionnaire survey from a sample of 345 students at the University of Kashmir, Srinagar, India to identify relevant factors. Correlation analysis and regression analysis (linear regression model) were used to better understand the relationship between various variables. The intention of students not to waste food was successfully predicted using the extended theory of planned behaviour. Our study's findings revealed that several factors, such as one's attitude, behavioural control, knowledge about food waste, moral standards, eating habits, and leftover reuse routine, have a significant influence (p < 0.01) on students' desire to avoid food waste and explain 68.6% of the variance in intention to not waste food. Knowledge about food waste was by far the most significant factor associated (with max. β coefficient) with the desire not to waste food. Subjective norms did not reach statistical significance (p > 0.01) and could therefore not be used to predict intentions. The research highlights effective strategies to reduce food waste among youth by outlining the most impactful factors that explain the intention to waste less food and thus contribute to addressing the global issue of food waste.

Urban household food waste behavior and reduction strategies in China: A case study of Zhengzhou city

Urban household food waste behavior and reduction strategies in China: A case study of Zhengzhou city

Determinants of Consumer Food Waste Behaviour in Malaysia Based on the Theory of Planned Behaviour

Food waste is a critical issue affecting environmental sustainability and food security globally. This study aims to investigate the determinants of consumer food waste behaviour among households in Malaysia, adopting the Ajzen’s Theory of Planned Behaviour as the conceptual framework. A quantitative approach was adopted, with data collected from a survey of 300 Malaysian households. Descriptive statistics were used to analyse the survey data, which measured constructs such as attitudes towards food waste, subjective norms, perceived behavioural control, and food related routines. Results indicate that perceived behavioural control, shopping routines, and the reuse of leftovers are significant predictors of food waste behaviour in Malaysian households. Planning routines contribute indirectly to reducing food waste. Sociodemographic variables, including household size, income, and age, were found to have significant correlations with food waste behaviour. These findings offer valuable insights for designing targeted interventions to reduce food waste in Malaysia by enhancing household capabilities and routines related to food management. The study highlights the importance of understanding local consumer behaviour to effectively address food waste and support global sustainability efforts.

Effect of torrefaction pretreatment on combustion behaviour of different agricultural wastes

In this study, which was carried out to investigate the effect of the torrefaction process on the combustion behaviour of agricultural wastes, almond hulls and shells, olive seeds and corn stalks were used. The samples, dried in a laboratory atmosphere, were torrified at 300 5ºC for 41 minutes. The change in fuel properties was determined by making proximate analyses of the solid product obtained after the process and compared with the raw sample. The effects of the torrefaction process on the combustion behaviour of agricultural wastes of different structures were investigated by burning the 1 0.15 g weighted raw and torrefied samples at 700ºC furnace initial temperature in a fixed bed system. Biochars containing higher fixed carbon were obtained with the torrefaction process applied to agricultural waste, and it was determined that this caused biochars to burn more efficiently and for a longer time than raw biomass. As a result, it was determined that biochar with better properties was produced by the torrefaction process applied to agricultural wastes and it was suitable for burning in solid fuel combustion systems. Thus, biochar obtained will both contribute to the country's economy and add value to agricultural wastes that cause problems during storage, transportation, loading into the burning system, and combustion.

Implementation of Digitalization of City Infrastructure for Improved Sustainability: Case Study on Smart City Project in Surabaya, Indonesia

The application of digitalization in urban contexts, particularly through Smart City initiatives, has become an important avenue to address the complexities of modern urban life. This study focuses on the Smart City Project in Surabaya, Indonesia, aiming to quantitatively analyze the impact of digitalization on sustainability indicators from a community perspective. A quantitative approach, including a survey of 190 residents and regression analysis, was used to comprehensively explore the relationship between demographic factors, perceptions of digital infrastructure and sustainability outcomes. The results showed statistically significant improvements in sustainability indicators, with waste reduction behavior and community satisfaction being particularly important. Regression analysis shows that age, income, and digital literacy significantly influence sustainability outcomes. These findings contribute to the growing body of knowledge on Smart Cities initiatives, offering insights for policymakers, urban planners, and community leaders to increase the effectiveness of digitalization in fostering sustainable urban environments.

Exploring the psychological determinants of household's intention to reduce food waste: Insight from Yogyakarta Indonesia

Food waste's negative effects on the environment and monetary losses have made it a major concern. Food waste at the consuming stage has been directly affected by customer purchasing behaviour. Moreover, the majority of food waste happens within households. This means examining the reasons behind household food waste behaviour is a potential safeguard against food waste issues. This research aimed to analyze household food waste behavior in the Special Region of Yogyakarta after the COVID-19 pandemic. This study was conducted with a questionnaire survey from June to July 2023 to households in the Yogyakarta Special Region. Data was collected purposively using online and offline methods simultaneously. A total of 245 responses were obtained, and 203 were valid for use. Partial Least Square Structural Equation Modeling (PLS-SEM) was used as the analytical method. The research results showed that psychological factors such as attitudes, perceived behavioral control, emotions, moral beliefs, and knowledge about food management influenced households' intentions to reduce food waste. By examining the factors that affect food waste, it is hoped that this research will advance our understanding of trends in food waste behavior at the household consumer level in developing nations.

New insights into the link between pro-environmental attitudes and household food waste behaviours in China: Moderating effect of shopping distance.

Environmental attitude, value and awareness are widely believed to help reach the goal of cutting global food waste, but these psychological and cognitive factors are not always good predictors of wasteful behaviours. Notably, it is still unclear how the role of pro-environmental attitude (PEA) in reducing household food waste (HFW) changes with grocery shopping distance. To this end, using 7319 households survey data from China, this study investigates the moderating effect of shopping distance on the link between PEA and HFW behaviour. The results of Tobit regressions show that PEA is an important predictor of actual HFW behaviour in the absence of the constraint of shopping distance. However, the expansion of shopping distance will weaken the positive role of PEA in reducing HFW. It indicates that, due to the temporal and financial constraints generated by shopping distance, there is a certain degree of hypothetical deviation between the wasteful behaviours that individuals actually exhibit and their stated PEA. Our findings, from the perspective of the moderating effect of shopping distance, explain why some individuals deviate from their stated PEA in HFW behaviour, which provides a new insight into the generation of 'attitude-behaviour' gap. Therefore, policy interventions that merely enhancing environmental education may have limited effect on reducing food waste; instead, the promotion of citizen environmental ethics should be combined with efforts to improve the accessibility of retail infrastructures.

SUSTAINABLE DEVELOPMENT GOAL 2: EXPLORING BANDURA’S TRIADIC MODEL FOR BEHAVIOURAL CHANGE AMONG URBAN PRIMARY SCHOOL STUDENTS.

The average Malaysian disposes of 15,000 tonnes of food waste per day, out of which 6,000 tonnes is avoidable waste that could feed the poor. This study aims to address food security issues (SDG 2) in Malaysia by using Bandura’s Triadic Model of Reciprocal Determination to examine food wastage behaviours among urban post-millennials. Food waste, which comprises spoilage, preparation waste, and plate waste, is common in schools; as such, qualitative interviews were conducted with 25 urban primary school students in Klang Valley, Malaysia. The findings revealed the interplay between students' personal factors, physical environment factors, and social environment factors in influencing their food wastage behaviours and perspectives. Additionally, it was observed that behavioural changes towards zero-food waste within the school community require environmental interventions, as urban school-goers lack knowledge of food storage alternatives, while their surrounding environment does not support broader food security concerns. Based on the findings, this study proposed a modified triadic model which incorporates permaculture as a sustainable practice in urban schools in Malaysia. Permaculture can act as an environmental stimulus that cultivates students’ positive personal attitudes and feelings towards reducing food waste. Subsequently, there would be a reduction in food waste behaviour within the students' existing ecosystem. This study promotes the reduction of food waste in urban schools and contributes towards formulating a framework for food security in schools.

Predicting food waste reduction behavior among students in higher education institutions

Purpose This study aims to determine and analyze the predictors of food waste reduction intention and behavior among higher education institutions (HEIs) using an extended version of the theory of planned behavior (TPB). Design/methodology/approach This study empirically tested an extended TPB model through regression analyses using data obtained through an online survey. Findings Attitude toward food waste reduction, subjective norms, perceived behavioral control and food waste knowledge predicted intention to reduce food waste. Furthermore, the intention to reduce food waste predicted food waste reduction behavior. Research limitations/implications The results imply that extending the TPB by adding food waste knowledge significantly predicted food waste reduction intention and behavior. Practical implications The study identified factors that predict food waste reduction behavior and suggested ways to influence Filipino students in HEIs to reduce food waste. Originality/value The findings support the inclusion of food waste knowledge to the TPB in predicting food waste reduction intention and behavior among students in HEIs.

Электрохимическая переработка отходов ренийсодержащих сплавов на основе вольфрама в аммиачно-карбонатных растворах

The electrochemical behavior of rhenium-containing tungsten alloys waste of the type WRe (wt. %: W — 80–95, Re — 5–20) in a solution of (NH4)2CO3 1,0 M was studied using the method of linear voltammetry in potentiodynamic mode and potentiostatic electrolysis. Separation of tungsten and rhenium from the resulting electrolyte was carried out by crystallization of ammonium paratungstate and concentration of rhenium in the mother liquor. A basic technological scheme for the processing of rhenium-containing tungsten alloys is proposed.

Developing student food waste literacy

This article addresses the pressing issue of food waste by focusing on the development of young adolescents’ food waste literacy. The concept of food waste literacy (FWL), defined as the literacy for the judicious use of food, encompasses knowledge, attitudes, values, and behaviours related to food waste. The article presents a study that aimed to enhance FWL among young adolescents in a New Zealand school through a teacher-directed guided inquiry intervention. A mixed-methods approach, including a survey and interviews, explored students’ food waste knowledge, attitudes, values, and behaviours. The findings underscore the potential of appropriate units of learning and curriculum design for developing FWL. Promoting food citizenship in students is central to addressing food waste issues through educational initiatives.

Moral licensing and habits: Do solar households make negligent choices?

Orienting household behaviors towards more efficient use of energy in the home is crucial to climate change mitigation efforts. The objective of this work is to examine the social-psychological antecedents of energy curtailment in solar households. Using an online survey (n = 257) of solar households in Australia, the study validates an augmented model of planned behavior using partial least squares structural equation modeling (PLS-SEM). The study shows that the path of a standard construct, from perceived behavioral control to intentions, is interrupted by moral licensing, a concept that has been largely ignored in studies applying the standard model of planned behavior. The study provides fresh insight into how consumers vindicate wasteful energy consumption behavior through moral licensing. Amongst its contributions, the study shows that social influence is the most important driver of intentions and behavior. The habitualised use of energy has a significant, negative effect on behavior. This work has several recommendations for retailers and policy makers in global energy markets on how to minimise licensing and negligent habits, and at the same time, it opens up new research avenues in the ethical consumption discourse.

Zero Waste Knowledge and Behavior of Early Childhood Pre-Service Teacher in Science Education

The importance of environmental education needs to be integrated with science learning related to zero waste topics. Environmental topics related to zero waste need to be understood by early childhood pre-service teachers because teachers are an important subject in providing understanding to young children regarding the environment. This research aims to describe environmental knowledge and zero waste behavior in early childhood pre-service teachers. The method used in this research is a descriptive method through data collection techniques using surveys. The instruments used in this research were 2 types, namely test questions used to measure environmental knowledge and questionnaires used to measure zero waste behavior. The results of this research show that the average zero waste knowledge score of early childhood pre-service teachers is still in the very low category (32.87). The average zero waste behavior score for early childhood pre-service teachers is in the moderate category (65.83). The results of this research show how important environmental education related to zero waste is integrated with science education. The recommendation from this research is to be able to develop media that can be integrated into zero-waste learning.

How Reference Dependence and Network Embeddedness Shape Residents’ Food Waste Behavior? Evidence from China

How Reference Dependence and Network Embeddedness Shape Residents’ Food Waste Behavior? Evidence from China

Optimization in Flexural and Physical Behavior of Agricultural Waste Reinforced Epoxy Based Polymer Matrix Composite by Taguchi Technique

Optimization in Flexural and Physical Behavior of Agricultural Waste Reinforced Epoxy Based Polymer Matrix Composite by Taguchi Technique

Become resilient and sustainable in pro-environmental: the role of theory planned behavior on food waste and responsible consumption

The dilemma between fulfilling consumption and sustainability aspects is very pronounced in developing countries like Indonesia. The large population and busy activities of the population mean that people’s consumption patterns are high, which puts them at risk of producing amounts of waste that are not environmentally friendly. This study explores insights into responsible consumption that occurs among people in Indonesia. Data was collected from 196 Indonesian consumer households. A five-point Likert scale was used in the research questionnaire. PLS-SEM is used to measure the structural model. The results showed that subjective norms, perceived behavioral control, and responsible consumption play an important role in household food waste behavior.

Exploring the evolutionary mechanism of the cross-regional cooperation of construction waste recycling enterprises: A perspective of complex network evolutionary game

Cooperation and information sharing among various regional departments play a crucial role in facilitating the equitable disposal of construction waste across regions, fostering regional coordination in waste management. This paper establishes the complex network evolutionary game model of cross-regional cooperation of construction waste recycling enterprises, and conducts numerical simulation to analyze the strategic adjustment process of recycling enterprises under the coordination and complementarity of market mechanism and government mechanism, and explores the Pareto optimal conditions that are conducive to cross-regional cooperation of recycling enterprises. The result indicates that with the increase of the market scale of cross-regional treatment of construction waste, it can effectively improve the willingness of cross-regional cooperation of recycling enterprises. In the market mechanism, both the profit distribution and synergistic benefit have a significant impact on the cross-regional cooperation behavior of construction waste recycling enterprises, while the impact of spillover benefit is relatively minor in comparison. In various network scales, the profit distribution coefficients exhibit threshold values within the ranges of 0.3–0.35, 0.25 to 0.3, and 0.25 to 0.3, respectively. Within the government mechanism, the government subsidy coefficient falls within the threshold of 0.3–0.4. Notably, greater government support proves more conducive to advancing cross-regional cooperation among recycling enterprises. For small-scale and medium-scale markets, there exists a threshold for default penalties ranging between 4 and 5. In contrast, large-scale markets have a default penalty threshold between 3 and 4. Imposing reasonable penalties for contract breaches can effectively stimulate the sustainable and consistent development of cross-regional cooperation among recycling enterprises. These findings establish a foundation for shaping cross-regional cooperation strategies for recycling enterprises, enhancing the efficiency of construction waste treatment, and fostering the coordinated development of urban areas.

Food delivery platform and food waste: Deciphering the role of promotions, knowledge, and subjective norms among Indonesian generation Z

With the popularity of food delivery applications in Indonesia, there is a need to promote responsible consumption habits, specifically in mitigating food waste. This study examined the influence of promotion, knowledge, and subjective norms on sustainable food waste behaviour among Generation Z individuals in Indonesia. The study involved an online survey of 561 Generation Z users of meal delivery platforms, with data analysis conducted using Structural Equation Modeling-Partial Least Squares (SEM-PLS) through SMART-PLS 4 software. The study contradicted that promotion and knowledge directly affect food waste reduction behaviour. Promotion can positively impact responsible food waste behaviour when mediated by price consciousness and perceived behavioural control. Knowledge requires attitude and perceived behavioural control to influence responsible food-wasting. It became apparent that subjective norms directly affected responsible food waste and were mediated by attitude. The antecedent variables examined in this study explained a 63.7% variance of sustainable behaviour towards food waste, indicating moderate explanatory power. Promotion conducted by food delivery service applications, accompanied by information and practical strategies to enhance consumers' perceived behavioural control, can increase the likelihood of sustainable food waste behaviour among Generation Z consumers, particularly price-conscious consumers. To foster positive attitudes and subjective norms towards sustainable food waste behaviour, policymakers can incentivize academic institutions, culinary businesses, and influencers to promote food waste reduction.

The Influence of Pro-Environmental Behavior, Lifestyle and Eating Behavior of Consumers on Food Waste and Loss Prevention Behavior Mediated by Environmental Awareness of Star Hotel Consumers in Padang City

This research aims to determine The Influence of Pro-environmental behavior, Lifestyle and Eating behavior of Consumers on Food waste and loss prevention behavior Mediated by Environmental Awareness of Star Hotel Consumers in Padang City. This research is explanatory research. The population in this study were all hotel guests who stayed and ate at star hotel restaurants in Padang City, with a sample size of 200 people. The sampling technique used purposive sampling technique. The data analysis method uses Structural Equation Modeling - Partial Least Square (SEM-PLS). The results of this research show that pro-environmental behavior has a negative and significant effect on food waste and loss prevention behavior. Meanwhile, lifestyle has no effect on behavior to prevent food waste and loss. then eating behavior and environmental awareness have a positive and significant effect on food waste and loss prevention behavior. However, after being mediated by environmental awareness variables, pro-environmental behavior and lifestyle had no effect on food waste and loss prevention behavior which was mediated by environmental awareness. Meanwhile, eating behavior has a positive and significant effect on food waste and loss prevention behavior which is mediated by environmental awareness. It is hoped that the results of this research will increase efforts in providing knowledge and awareness about these factors so that they can have a positive impact on food waste and loss prevention behavior, by conducting educational and counseling campaigns about the importance of pro-environmental behavior, environmentally friendly lifestyles, eating behavior. good practices, and environmental awareness in reducing food waste and loss.