Economic Estimation for a Glass Waste Recycling Facility in Johannesburg, South Africa

2021 ◽  
pp. 37-46
Author(s):  
Ayeleru Olusola Olaitan ◽  
Olubambi Peter Apata ◽  
Felix Ndubisi Okonta ◽  
Ntuli Freeman
Keyword(s):  
South Africa ◽  
Waste Recycling ◽  
Glass Waste

Material flow design and simulation for a glass panel recycling installation

2018 ◽  
Vol 36 (7) ◽  
pp. 653-660 ◽  
Author(s):  
Cicerone Laurentiu Popa ◽  
Costel Emil Cotet ◽  
Diana Popescu ◽  
Mihai Florin Solea ◽  
Simona Gheorghiţa Şaşcîm (Dumitrescu) ◽  
...  
Keyword(s):  
Material Flow ◽  
Waste Recycling ◽  
Float Glass ◽  
Simulation Software ◽  
Glass Panel ◽  
Glass Waste ◽  
Novel Approach ◽  
Glass Panels ◽  
Waste Flow ◽  
Processing Architecture

The current paper presents the design of a glass panels recycling flow and the method used for establishing the optimal processing installation architecture. In the solution provided in the current research, a novel approach centred on applying digital twinning in the design of the requested processing architecture is presented. It involves designing the virtual prototype of the diffused processing architecture and modelling the glass waste flow as a hybrid material flow. Dedicated analysis and simulation software is then used for establishing installation architecture and the specific parameters for each processing and transport capacity. The assessment of different processing scenarios by virtual modelling and simulations can also be used for exploring options to increase productivity and profit for other different recycling architectures. The main practical value of the study consists of creating the means to improve the waste recycling of automotive windshields, float glass or construction glass panels with metallic meshes, all representing categories of waste insufficiently recycled in Romania. The simulation results of the study were validated by tests made on the glass panel recycling installation. Also, a recovery glass rate of minimum 85% of the amount of waste loaded into the recycling system was achieved, obtaining a waste recycling quantity three times higher than initially anticipated.

scholarly journals CONSUMER E-WASTE RECYCLING IN SOUTH AFRICA

2020 ◽  
Vol 31 (3) ◽  
Author(s):  
Ruby Ichikowitz ◽  
Teresa Hattingh
Keyword(s):  
South Africa ◽  
Waste Recycling

scholarly journals An economic case for regulating against the use of non-deposit carrying glass containers of beverage in South Africa

1998 ◽  
Vol 1 (3) ◽  
pp. 422-445
Author(s):  
S. Hosking
Keyword(s):  
South Africa ◽  
Glass Waste ◽  
Recycling System ◽  
System A ◽  
Glass Containers ◽  
Private Cost ◽  
Port Elizabeth ◽  
Glass Packaging

As a result of minimal private cost many people dispose of non-deposit bearing glass containers in ways which cause glass pollution: hazardous broken bottles and litter. This pollution imposes costs on users of the affected environment and on municipalities, which have most of the responsibility to clean up, although in South Africa the two main glass packaging producers also play a role by operating a recycling system. A case study was carried out in the Port Elizabeth area in which exploration is made of the glass that does not get recycled and an intuitive analysis is made of the costs of different options for managing recyclable glass waste. It is concluded that the case deserves further investigation for introducing legislation in South Africa making bottle deposits mandatory.

scholarly journals Influence of Glass Silica Waste Nano Powder on the Mechanical and Microstructure Properties of Alkali-Activated Mortars

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 324 ◽  
Author(s):  
Mostafa Samadi ◽  
Kwok Wei Shah ◽  
Ghasan Fahim Huseien ◽  
Nor Hasanah Abdul Shukor Lim
Keyword(s):  
Carbon Dioxide ◽  
Second Life ◽  
Carbon Dioxide Emissions ◽  
Waste Recycling ◽  
Glass Bottle ◽  
Glass Waste ◽  
Nano Powder ◽  
Glass Silica ◽  
Furnace Slag ◽  
Alkali Activated

The recycling of millions of tons of glass bottle waste produced each year is far from optimal. In the present work, ground blast furnace slag (GBFS) was substituted in fly ash-based alkali-activated mortars (AAMs) for the purpose of preparing glass bottle waste nano-powder (BGWNP). The AAMs mixed with BGWNP were subsequently subjected to assessment in terms of their energy consumption, economic viability, and mechanical and chemical qualities. Besides affording AAMs better mechanical qualities and making them more durable, waste recycling was also observed to diminish the emissions of carbon dioxide. A more than 6% decrease in carbon dioxide emissions, an over 16% increase in compressive strength, better durability and lower water absorption were demonstrated by AAM consisting of 5% BGWNP as a GBFS substitute. By contrast, lower strength was exhibited by AAM comprising 10% BGWNP. The conclusion reached was that the AAMs produced with BGWNP attenuated the effects of global warming and thus were environmentally advantageous. This could mean that glass waste, inadequate for reuse in glass manufacturing, could be given a second life rather than being disposed of in landfills, which is significant as concrete remains the most commonplace synthetic material throughout the world.

scholarly journals Barriers to Household Waste Recycling: Empirical Evidence from South Africa

Recycling ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 41 ◽  
Author(s):  
Wilma Strydom
Keyword(s):  
South Africa ◽  
Developing Countries ◽  
Urban Areas ◽  
Developed Countries ◽  
Waste Recycling ◽  
Household Waste ◽  
South Africans ◽  
Local Evidence ◽  
The One ◽  
The Unemployed

A small percentage of South Africans regularly recycle most of their recyclables, which was only 4% and 7.2% in 2010 and 2015, respectively. This empirical quantitative study, the first study on this scale in South Africa, aimed to ascertain the reasons why people do not recycle. This paper reports the results from a survey conducted among a representative sample of 2004 respondents in eleven of South Africa’s large urban areas. Each respondent selected three main reasons why people do not recycle from ten possible options as well as the one main reason. The results show that (i) insufficient space, (ii) no time, (iii) dirty and untidiness associated with recycling, (iv) lack of recycling knowledge, and (v) inconvenient recycling facilities are perceived as the main reasons why people do not recycle. Non-recycling households (74% of the respondents) give high priority to time and knowledge. Low recyclers—those that sporadically recycle few items—and young South Africans give high priority to services (inconvenient facilities and no curbside collection). Lack of knowledge is an important factor for people from dense settlements as well as the unemployed looking for work. Improved recycling services such as regular curbside collections have the potential to overcome time and space barriers. Recycling services as well as recycling knowledge will have to improve to encourage the youth, the unemployed, and those living in informal areas to recycle and realize the opportunities locked in the waste sector. The perceptions of respondents from non-recycling households differ from those from recycling households. The larger representation of non-recyclers in developing countries emphasize the importance of understanding local evidence when comparing and implementing results from developed countries. The learning from this study could also assist other developing countries to encourage household participation in recycling initiatives.

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