Awareness and dissemination projects for reducing domestic waste are implemented in various ways mainly by local governments in Japan. However there has been no study on comparative analysis of all the projects about those direct effect on the waste reduction or indirect effect by promoting other policies such as waste collection fees. The final goal of this research is to conduct such analysis on all the projects. For its preliminary study we tried text analysis on administrative plans for reducing domestic waste by 14 cities, which were selected based on the population and the waste volume. It was illustrated from the result that there were a wide variety of projects in the cities which have implemented the project of the waste collection fees. Those cities might try to gain more satisfaction of their residents against the waste collection fees, which are accompanied by economic burden. In addition, it was characterized that the cities with low waste volume were likely to focus on the projects to delegate dissemination of waste reducing actions to cooperative local residents. Because these knowledge were gained from the text-analysis, it was expected to be effective for achieving our final goal.

Fukuoka City utilizes the business waste recycling promotion fund to support construction and operation of the Fukuoka City recycling base, a recycling facility for business waste paper that was newly opened in May 2020.

In Fukuoka City recycling base, targeting at a company that has not made waste paper recycling available, it is combined into one bag regardless of the type of waste paper and discharged, 2 small amount discharge, and 3 processing fee of the cleaning plant processing fee half of Fukuoka City New waste collection methods to reduce the burden on the waste paper discharger and the economic burden.

In order to increase Fukuoka City recycling-based users and increase the amount of used paper collected, it is necessary to raise awareness of Fukuoka City recycling-based and to capture the needs of discharge companies.

Therefore, in this research, Fukuoka City business waste waste disposal companies, whether there is an effort to waste paper separation, the method and amount of waste paper separation that is being implemented, the reason for not performing waste paper separation, recognition of Fukuoka City recycling base We conducted a questionnaire survey on the existence and availability.

In recent years, the problem of marine litter has become serious. China and Southeast Asian countries have banned imports of used plastics from foreign countries since 2017. Therefore, there is a growing interest in reducing single-use plastics bottles and packages. It has become commonplace to export used plastic bottles to foreign countries. In addition, it has been reported that PETbottles dominate the top of collected waste even in surveys of river waste in various places. In this way, we have seen problems that can not be solved only by thorough waste separation and further promotion of recycling.

Waste Reduction Conference of Kyoto has been engaged in a campaign to reduce plastic bottles by spreading leaf(green) tea from autumn 2016. This report will clarify the frequency of use of PETbottle drinks by gender and age, based on about 2,000 questionnaires obtained in the citizen and student business since 2018. At the same time, we report on the results of our efforts to raise awareness of reduce.

Rapid economic development have caused an increasing amount of municipal solid waste in the cities of China. Source separation of municipal waste is efficient to facilitate the implementation of proper disposal and recycling of those wastes. In this study, a quetionaire survey on public awareness of source separation was conducted in the city of Changsha, the capital of Hunan province in the Southern China. Samples of the survey were collected in two ways, by a face-to-face interview on street and by SNS. In the SNS survey and the face-to-face survey, 235 and 117 samples were collected.

As a result, the factors that affect citizen awareness of solid waste can be divided into four factors,cost benefits and the recognition of feasibility,knowledge ,awareness of environmental issues,and social norms.It was also suggested that cost benefit is strongly related to the recognition of feasibility.

The Senri Recycle Plaza Civic Research Institute was established in 1993 and reach 25 years in 2018. The first citizen researcher system was established in Japan. At that time, the philosophy for civic research was also attracting attention as opposed to specialized research. However, a quarter of a century has passed, and now it is very different from the establishment. The change of the times during this time seems to be widely promoted among the citizens, such as waste separation and recycling. However, on the other hand, there is also a problem of plastic contamination that has recently been discussed. It seems that recycling in the true sense is not progressing.

In this paper, after describing the outline and transition of the Senri Recycle Plaza and the Citizen Research Institute, the facts and problems of citizen research activities related to waste and recycling are clarified, and I would like to propose some ideas about the citizen research appropriate for the future era.

This research investigates the basic plan and the required standards in the MSW (Municipal Solid Waste) treatment facility construction project. And the equipment aspect (hard) and the operation aspect (software) in environmental learning function are compared. As a result, the issues of the building process are clarified, and the direction for the MSW treatment facility to grow into a sustainable facility that can meet the regional needs and the demand for base facilities is guided.

In this study, we clarified survival factors of smoking spaces, which are often regarded as nuisance facilities, in A shopping street in Nakano city through interviews with members of A Shopping Association and the officers of the city who are in charge of street smoking. Five survival factors we explored are as follows; communication among residents, observance of the ordinance of the city, rational reason of existence, membership and leadership and the private spaces which allow the setting.

SDG12.3 calls for halving the amount of "food waste". However there are several interpretations and definitions for this. The authors investigated existing surveys on food waste in Japan and also discussed this issue with researchers from Europe. Respecting the sprit of target 12.3, the object of reduction should solely be edible parts of food waste, and utilisation other than human consumption should be counted as waste. We considered that the reduction of potentially edible residues (possibly avoidable food waste) that are parts not usually eaten or deliberately removed, is of secondary priority, hence they should not be included in the target. For promoting the achievement of the target, subcategories with focus on food related activities in household is useful, as they are relatively easy to connect to the causes of wastage and their contermeasures. Hence we suggested a sorting categories table consisting of ingredients for cooking, ready-to-eat food, and leftovers.

Retail companies like supermarkets discharge food losses by the differences between their order amounts and sales amounts within freshness/expiration dates of foods. Because the minimization of the differences by accurate prediction of daily sales would directly link to the reduction of food loss, the sophistication of sales amount by the application of weather information and AI is considering.

This study focused on the daily sales of rice balls that were difficult to be predicted because of its wide variation, and studied to improve the accuracy of prediction by the application of Deep Learning, which attracts rising attention on the helpfulness for prediction and classification purposes.

We compared five indicators of different recycling rates that consider the waste management hierarchy of recycling, natural return, reduction, and final disposal. As a result, for the development of such recycling rate indicators that evaluate the quality of resource circulation, how to evaluate energy recovery, natural return, and dehydration is important.

In order to further improve the material flow index of the whole of Japan, it is necessary to consider and implement additional measures while grasping the measure effect of each municipality. The authors have built a nationwide model of municipal waste flow that can assess the effects of measures by municipality, using data from the survey on actual states of municipal waste management. In this paper, using the model, we set two scenarios, BaU and measures, as in the previous report, and estimated the emission per capita and cyclical use rate by municipality. As for the level of the measure scenario, we set the maximum value that can be introduced for items that are required to be strengthened, set the extension value of the current efforts for the others, and made some corrections from the previous report. In the analysis, four population segments were set, and the average value and distribution of the indicators in each category were estimated. As a result, especially in the case of cyclical use rate, in many municipalities, the measure scenario shows an effect more clearly than the BaU scenario, which is more remarkable in the segments with a smaller population.

In this study, Kitakyushu uses information held by the government and survey results by questionnaire survey in order to plan the amount and effect of the possibility of implementing the appropriate disposal and recycling of industrial waste in a narrow range. In addition to estimating the amount of potential disposal within the municipality of waste that has been carried out and processed outside the municipality, the impact of the transition within the municipality was quantitatively evaluated by carbon dioxide emissions.

Marine plastic litter are attraccting international attention. According to Jmabect et. al.(2015) esttimated that Indonesia, Philippines, Thailand, Malaysia and Mynamar are ranked in Top 20 of major contributors of marine plastic litter. The total generation of marine plasic litter by these 6 countries exceed that of China, which is listed in the top. Indonesia, Thailand and Malaysia made action plan and roadmaps related to marine plastic litter recently. This paper revies exsiting roadmap and actions and recyling of plastics, and argues policy aginst marine liter in Southeast Asian countries.

In Vietnam, the amount of construction and demolition waste (CDW) has been increasing with rapid economic growth. A recycle and appropriate treatment of CDW seems to be insufficient because almost of CDW is dumped in a landfill or another land directly. This study tried to reveal the current situation of CDW generation and treatment in Hanoi city. We conducted the questionnaire survey to several constructors who contact demolition work and revealed almost of constructors did not recognize the regal framework about obligation of CDW sorting and appropriate recycling. In addition, the field survey at several demolition site was carried out. It was indicated that the combination of manual sorting work and machine demolition work was used generally. Moreover, we revealed that not only metallic waste such as reinforcing steel but also mixed waste such as residue of concrete and brick were traded for valuable materials. We concluded that the clarification of CDW flow and the development of several guidelines of CDW sorting methods are needed for accelerating CDW recycling in Vietnam.

In Da Nang City, GPS loggers are mounted on a part of the waste collection vehicles for the purpose of improving work management and collection efficiency, and the tracking data is constantly accumulated. In this research, with the aim of obtaining knowledge useful for improving the waste collection efficiency of Da Nang City, the author decided to examine collection efficiency and its influencing factors using these tracking data. In addition, for the waste discharged in the 5 central wards of Da Nang city, the author conducted interval estimation of total working time of the day using the work efficiency indices obtained in this study, and also analyzed the uncertainty of the model parameters to verify the reliability of them.

“Waste Management and Public Cleansing Law”states that,“industrial waste generators must provide their wastes’ information to waste disposal company for the purpose of proper method of disposal.” The purpose of this paper is to reconstruct and suggest new and specialized criteria and standards for the current “Waste Data Sheet: (WDS)” as required information for medical infectious waste generators. Existing WDS, which has been recommended by the Ministry of the Environment is suitable for waste that has fixed and/or constant physical and chemical properties. On the contrary, medical infectious waste consist of various substances and vary greatly day to day. For this reason, a specialized WDS for medical infectious waste was constructed for medical institutions in 2015. However, factors such as changing legal amendments, new types of medical wastes due to advances in medicine, ongoing improper separation and disposal by medical institutions, and other issues made this WDS outdated. In addition to modifying the current WDS model to account for changes made for today’s situation surrounding medical infectious waste. It is also vital to design the new WDS model to facilitate multi-directional exchange of information between waste producers, waste transporters, and waste disposers improving on the current unidirectional model of only producer to disposer.

Tens of millions of tons of asbestos product is also used as building material mainly at present in Japan.It's said that it takes more than 100 years for these processing.It'll be also to install an artificial asbestos mining area in domestic all part to reclaim an asbestos product as waste.Right information about asbestos also has to be handing an asbestos product down to the next generation as well as during use.We did a questionnaire survey about asbestos. Even the result and a word as asbestos were the situation which isn't recognized sufficiently, and information communication by higher educational facilities was also limited, and I found out that there is a problem in information communication to a younger age group lady in particular.Survey result about use of media of information and communication is considered about information communication method to a younger age group lady in reference variously by this paper.

Reuse and recycling have been the two major methods that reduce the environmental impact of wastes generated by human activities. Although the recovery and recycling rates have improved, there are also criticisms that recycling work as exempt of mass production and mass consumption. On the other hand, in the Third Basic Plan of Sound Material-Cycle Society, it was stated that the country should proceed with efforts focusing on the “quality” of the resource circulation, but its concept is not well organized. In this presentation, we collected new cases related to reuse and recycling, and investigated the contents of the efforts of each case and what kind of quality improvement and value were created. Among 50 cases, we classified into six types: upcycle product type, material regeneration type, natural reductant utilization type, social contribution type, regional activation type, online marketplace utilization type.