scholarly journals Reducing Waste Disposal from Universiti Kebangsaan Malaysia Campus By 2-Bins Recycling System

2011 ◽  
Vol 2 (1) ◽  
pp. 31-35
Author(s):  
Kian-ghee Tiew ◽  
Kohei Watanabe ◽  
NoorEzlin Ahmad Basri ◽  
Shahrom Md. Zain ◽  
Hassan Basri

This is a study on the 2- bins recycling system at Universiti Kebangsaan Malaysia (UKM) year 2010 to reduce waste disposal at landfills. Fifty sets of 2-bins recycling system were allocated in the Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM). The number of recyclable items found in the recycling and mixed waste bins served as dependent measurements. Results indicated that the recycling containers successfully recovered recyclable items by 49.5%, but still a high proportion of recyclable items thrown into the mixed waste container which is 50.5% which indicates wrong bins usage. Awareness programs are required to increase rate of participation among students.


2021 ◽  
Vol 13 (22) ◽  
pp. 12422
Author(s):  
Piotr Nowakowski ◽  
Sandra Kuśnierz ◽  
Julia Płoszaj ◽  
Patrycja Sosna

The effectiveness of e-waste collection depends on organizational and social factors. Individuals should have easy access to collection points and be aware of proper methods of e-waste disposal. This article investigates the availability, usability, and occurring irregularities of the container collection of small-waste electrical and electronic equipment. The study explores the attitude and behavior of individuals when disposing of small-waste equipment in the South of Poland. The results show that ninety-five percent of supermarkets’ managers responsible for waste management find a growing interest in the disposal of small e-waste by individuals. An increasing number of collection containers encourages residents to dispose of small-waste appliances. More than eighty-three percent of respondents are aware of proper methods of e-waste disposal. Additional information campaigns addressed to residents are required to prevent mixing electrical and electronic waste with other waste and to encourage the disposal of small e-waste. The intention to dispose of small e-waste was declared by only thirty-two percent of respondents. Containers with discarded easy breakable items, such as lamps, should be removed more frequently. The collection containers’ noticeability is evaluated by individuals as of average difficulty. The containers in supermarkets have simple designs and labels indicating the category of waste for disposal. The containers installed in residential areas have attractive designs and advertising slogans. The individuals expect the containers should be available in more locations that are easily accessible from households. The results of this study should be helpful for local authorities, waste collection companies, and waste electrical and electronic organizations, to support design, location selection, and information campaigns for small e-waste container collections.



2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Wenzhen Chen ◽  
Jianli Hao ◽  
Zhiyun Chen

Aiming at the problem of radioactive waste disposal, the concept and mechanism of self-burial by deep rock melting are presented. The rationality and feasibility of self-burial by deep rock melting are analyzed by comparing with deep geological burial. The heat threshold during the process of contact melting around a spherical heat source is defined. The descent velocities and burial depths of spherical waste containers with varying radius are calculated. The calculated depth is much smaller than that obtained in the related literature. The scheme is compared with the deep geological burial that is currently carried out by the main nuclear countries. It is found that, at the end of melting, a radioactive waste container can reach deep strata that are isolated from groundwater.



2008 ◽  
Vol 2008.18 (0) ◽  
pp. 246-247
Author(s):  
Katsuya NAGATA ◽  
Hiroshi ONODA ◽  
Takuya KIRIKAWA ◽  
Motoshi MURAOKA ◽  
Katsumasa IHARA ◽  
...  


2021 ◽  
Vol 12 (1) ◽  
pp. 1-14
Author(s):  
Fatahah Dwi Ridhani

Nosocomial infection is a health issues related to the in-hospital activities. One of the indirect cause was the contamination related to the waste disposal activity. All hospital waste was deemed hazardous that it needs extra care during collection. Cross contamination may arises when the waste containers was not treated. To alleviate the problem and to promote healthy habits, this article describe a smart disinfectant sprayed waste collection container and its status reports. By automating the lid opening and closing that was triggered by human proximities using passive infrared detector and ultrasound sensor, it provide convenience in waste disposal. This also prevent cross contamination related with physical contact with the waste container which may induce the nosocomial infection. The container also tracking its remained waste capacity and will report when it was almost full to prevent overflowed and to alarmed for immediate waste pickup. In case of delayed container collection, the lids will remain closed and the light indicator turn to red. The indicator will turn green in normal conditions and turn yellow if the container was almost full. ESP32 was used to interface with ultrasound sensors to approximate the container remaining capacity. Passive infrared sensor and a servo motor was linked to actuates the lid opening and closing. Some disinfectant was sprayed for every detected increase in waste level. The disinfectant aerosol canister was pushed by a DC motor. For reporting, the systems was equipped with LoRa for status report. This systems was tested inside Poltekkes Kemenkes Jakarta II building and could reach at least 80m distance from the report center for reporting.



2008 ◽  
Vol 2008.18 (0) ◽  
pp. 242-245
Author(s):  
Katsuya NAGATA ◽  
Hiroshi ONODA ◽  
Takuya KIRIKAWA ◽  
Motoshi MURAOKA ◽  
Katsumasa IHARA ◽  
...  




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