scholarly journals A Low-Cost Solution for Automatic Plastic Segregation

Solid waste management is a universal issue that matters to every single person in the world. The solid waste management system is fundamentally labor intensive with very little collection efficiency. The available automatic plastic segregation techniques are based on thermal imaging and electrostatic properties of materials- these methods are expensive for governments to invest upon, and also to maintain in landfills. In this paper, artificial intelligence techniques are exploited to recognize the sounds of plastics from that of other materials by designing suitable mechanism to produce sound from debris during segregation, the segregation process can be automated with relatively low-cost electronics like System on Chips and audio sensors. With 30,000 recorded samples of noisy plastic and non-plastic material sounds, ANN is trained and was able to successfully detect plastics with 93.5% accuracy in real time. Algorithms were developed in python and real time testing was done on SoC with a mic, which affirms that the proposed method is cost effective when compared to techniques involving image processing, thermal imaging and near infrared spectroscopy.

2021 ◽  
Author(s):  
Matheus Santos Monteiro ◽  
Francisco L. de Caldas Filho ◽  
Pedro de O. Moura e Souza ◽  
Vinicius Salgueiro Costa ◽  
Gustavo P. C. P. da Luz ◽  
...  

2018 ◽  
Vol 22 (6 Part A) ◽  
pp. 2379-2388 ◽  
Author(s):  
Chira Bureecam ◽  
Taweep Chaisomphob ◽  
Praj-Ya Sungsomboon

A study of the plastics materials flow analysis in Thailand was aim to show the flow of plastic materials through production, consumption, and waste management based on the year 2013 and projection to the year 2020. This paper finds the plastic waste generation increasing steadily in line with population growth and increasing consumption. In addition, the simulation under waste management three scenarios includes the following: the business as usual, increasing recycled rate set on the National Solid Waste Management Master Plan (2016-2021) and increasing in rate of energy recovery by the Alternative Energy Development Plan 2015-2036. The plastic material flow analysis has shown that the implementation of the National Solid Waste Management Master Plan (2016-2021) or the Alternative Energy Development Plan 2015-2036 can reduce uncollected waste and improper waste disposal. Moreover, there is benefit by adding value from recycled materials and energy recovery.


Author(s):  
Kulyash Meiramkulova ◽  
Gulmira Adilbektegi ◽  
Galym Baituk ◽  
Aigul Kurmanbayeva ◽  
Anuarbek Kakabayev ◽  
...  

Waste recovery is an important aspect towards human and environmental health protection. Unfortunately, proper food waste management is among the serious challenges in the field of solid waste management worldwide. Therefore, it is of great importance to conduct studies towards achieving efficient and cost-effective approaches for food waste management. This study investigated the potential of recovering food waste through maggots’ production as animal feed. The influence of fly attractant application on maggot production was also investigated. The study also investigated the potential of maggot production for waste recovery and reduction. Four different types of food waste (starch food leftovers, rotten bananas and peels, rotten pineapple and peels, and rotten oranges) were used in the investigation process. From the results, it was observed that the application of fly attractants had a significant effect on the production of maggots as determined by the weights after harvesting. Average weight of 94 g/kg of maggot was achieved from banana materials with an application of fly attractant during the 8th day of the cultivation; which is equivalent to a 32.4% increase from the same day when the material was cultured without applying fly attractant. Also, from the starch materials, about 77 g/kg of maggot weight was achieved; which is a 54.6% increase from the same day and the same material but without application of fly attractant. Moreover, the relative dry weight reduction in the trials varied from 52.5% to 82.4%.


Author(s):  
Arkendu Ghosh ◽  
Vijay Kant Singh ◽  
Koyel Dey ◽  
Monika Patel ◽  
Apurba Pal

Author(s):  
David O. Olukanni ◽  
Ola O. Oresanya

One of the challenges of Lagos State is efficient and cost-effective solid waste management. This paper focuses on progress made in waste management operations in the State. An assessment to know how waste generation, collection, transportation and disposal have put demands on state resources, and its physical infrastructure was carried out. The state generates about 12,000 metric tons of waste daily (0.72kg/person/day). Due to limited budgetary allocation, the state government instituted the Lagos State Waste Management Authority (LAWMA) to perform supervisory roles and charged with the implementation, advocacy, monitoring and enforcement of waste management policies. As part of its roles, the agency enlisted Private Service Providers (PSP) for the purpose of appropriate billing of waste services. LAWMA centrally collects revenue and remits agreed portion of 60% of waste charges to individual PSP accounts in accordance to estimated waste collected. The state is focused on resource recovery programs such as composting, land filling and pelletizing of plastics and nylons. The implications (environmental, economic, social and financial) for managing solid waste gives credence to the renewal campaign for resource conservation and environmental sustainability. Thus, the 4 Rs of waste management – Reduction, Reuse, Recovery and Recycling are being demonstrated through establishment of compost production plant, championing of Waste-To-Wealth Initiatives and Renewable Energy (RE).


2015 ◽  
Vol 75 (11) ◽  
Author(s):  
Mahmuda Akhtar ◽  
M A Hannan ◽  
Hassan Basri ◽  
Edgar Scavino

Solid waste management is a big challenge throughout the world. It is becoming more complicated with the increased globalization and worldwide urbanization. Solid waste monitoring and management depends on the solid waste generation and collection efficiency. Without an efficient collection system, improvement of the solid waste monitoring and management system is a difficult task. Thus, it is a big hindrance on the way of development of solid waste management and sustainable environment. This paper deals with a comprehensive survey on the solid waste generation and their collection efficiencies. From the rigorous review, it is observed that the existing methods and system, however, not reliable and intelligent enough to monitor and manage the increased level of solid waste. Accordingly, this review is being highlighted on the issues and challenges for future efficient solid collection systems. This review paper may guide the reader about the basics of solid waste generation and their collection process to facilitate the planning and design of a sustainable new system


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