scholarly journals Sustainable Glass Recycling Culture-Based on Semi-Automatic Glass Bottle Cutter Prototype

2021 ◽  
Vol 13 (11) ◽  
pp. 6405
Author(s):  
Jovheiry García Guerrero ◽  
Juvenal Rodríguez Reséndiz ◽  
Hugo Rodríguez Reséndiz ◽  
José Manuel Álvarez-Alvarado ◽  
Omar Rodríguez Abreo
Keyword(s):  
Raw Materials ◽  
Recycling Process ◽  
Glass Bottle ◽  
Sustainable Development Goal ◽  
Development Goal ◽  
Quintuple Helix ◽  
Urban Solid Waste ◽  
Glass Bottles ◽  
Glass Recycling ◽  
Over Time

Humanity has developed recycling activities over time due to their benefits, the shortage of raw materials, or the footprint with regard to the environment. The absence of a recycling culture in Mexico has not allowed its development and growth despite the benefits. In 2012, Mexico only recycled less than 10% of urban solid waste. Most recycling activities are focused on plastic, paper, and cardboard products due to their prices in local markets. This article presents a semi-automated prototype focused on recycling glass bottles using the thermal shock phenomenon. It aims to develop a sustainable glass recycling culture by creating a new branch for the integral glass recycling process and a proposal base on Integrated Sustainable Waste Management (ISWM) and the Quintuple Helix Model. It helps to reduce waste and resource recovery from recycling and upcycling glass bottles. The products obtained from upcycling fulfill new uses and acquire new value, while glass leftovers continue the integral recycling process for glass. Additionally, this paper demonstrates the relation between the ISWM and the Quintuple Helix Model and the opportunity to implement the twelfth Sustainable Development Goal (SDG).

Observation of High Speed Glass Bottle Fracture Behaviors by Underwater Shockwave

2012 ◽  
Vol 586 ◽  
pp. 151-155
Author(s):  
Kosuke Nagata ◽  
Hidetoshi Sakamoto ◽  
Yoshifumi Ohbuchi ◽  
Hiroyuki Kuramae ◽  
Eiji Nakamachi
Keyword(s):  
High Speed ◽  
Fracture Process ◽  
Glass Bottle ◽  
Explosive Energy ◽  
Washing Process ◽  
Fracture Behaviors ◽  
Glass Bottles ◽  
Glass Recycling

This paper described new effective glass bottle fracture process for glass recycling by underwater shockwave. The high-speed fracture behaviors of glass bottles by explosive energy were discussed. In the proposed technique, the washing process can be skipped because the bottle crushing process execute in water. As a result, the recycling cost can be decreased. In order to clarify the behaviors of glass bottle fracture, the bottle was painted by 5 colors. The crushing experiment was executed under four explosive conditions. The influence of various explosive conditions on the cullet sizes were calcified by using painted bottle.

scholarly journals Monitoring Water-Related Ecosystems with Earth Observation Data in Support of Sustainable Development Goal (SDG) 6 Reporting

2020 ◽  
Vol 12 (10) ◽  
pp. 1634 ◽  
Author(s):  
Raha Hakimdavar ◽  
Alfred Hubbard ◽  
Frederick Policelli ◽  
Amy Pickens ◽  
Matthew Hansen ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Surface Water ◽  
Spatial Resolution ◽  
The Philippines ◽  
Earth Observation ◽  
Landsat 8 ◽  
Sustainable Development Goal ◽  
Development Goal ◽  
Data Products ◽  
Over Time

Lack of national data on water-related ecosystems is a major challenge to achieving the Sustainable Development Goal (SDG) 6 targets by 2030. Monitoring surface water extent, wetlands, and water quality from space can be an important asset for many countries in support of SDG 6 reporting. We demonstrate the potential for Earth observation (EO) data to support country reporting for SDG Indicator 6.6.1, ‘Change in the extent of water-related ecosystems over time’ and identify important considerations for countries using these data for SDG reporting. The spatial extent of water-related ecosystems, and the partial quality of water within these ecosystems is investigated for seven countries. Data from the Moderate Resolution Imaging Spectroradiometer (MODIS) and Landsat 5, 7, and 8 with Shuttle Radar Topography Mission (SRTM) are used to measure surface water extent at 250 m and 30 m spatial resolution, respectively, in Cambodia, Jamaica, Peru, the Philippines, Senegal, Uganda, and Zambia. The extent of mangroves is mapped at 30 m spatial resolution using Landsat 8 Operational Land Imager (OLI), Sentinel-1, and SRTM data for Jamaica, Peru, and Senegal. Using Landsat 8 and Sentinel 2A imagery, total suspended solids and chlorophyll-a are mapped over time for a select number of large surface water bodies in Peru, Senegal, and Zambia. All of the EO datasets used are of global coverage and publicly available at no cost. The temporal consistency and long time-series of many of the datasets enable replicability over time, making reporting of change from baseline values consistent and systematic. We find that statistical comparisons between different surface water data products can help provide some degree of confidence for countries during their validation process and highlight the need for accuracy assessments when using EO-based land change data for SDG reporting. We also raise concern that EO data in the context of SDG Indicator 6.6.1 reporting may be more challenging for some countries, such as small island nations, than others to use in assessing the extent of water-related ecosystems due to scale limitations and climate variability. Country-driven validation of the EO data products remains a priority to ensure successful data integration in support of SDG Indicator 6.6.1 reporting. Multi-country studies such as this one can be valuable tools for helping to guide the evolution of SDG monitoring methodologies and provide a useful resource for countries reporting on water-related ecosystems. The EO data analyses and statistical methods used in this study can be easily replicated for country-driven validation of EO data products in the future.

Assessing social sustainability in the gig economy

2021 ◽  
Author(s):  
Muralidharan Loganathan
Keyword(s):  
Economic Growth ◽  
Social Protection ◽  
Social Sustainability ◽  
Decent Work ◽  
Sustainable Development Goal ◽  
Development Goal ◽  
Country Level ◽  
Gig Economy ◽  
The World ◽  
Sustainable Economic Growth

Sustainable Development Goal 8 to “Promote sustained, inclusive and sustainable economic growth, full and productive employment and decent work for all” necessitates country level measures across the world. We take forward a comparative analysis of India’s SDG 8 indicator list with both the UN and ILO measurements. We note inadequate measurements on social-protection and rights for non-standard forms of employment including gig work, that are intermediated by ICT platforms. From our analysis we identify some levers to broaden the current indicator measurements to include these non-standard workers as well, to improve social sustainability.

scholarly journals Migrants’ Narratives on Urban Governance: A Case from Kolkata, a City of the Global South

2021 ◽  
Vol 13 (2) ◽  
pp. 1009
Author(s):  
Anuradha Chakrabarti ◽  
Reena Tiwari ◽  
Haimanti Banerji
Keyword(s):  
Oral History ◽  
Urban Governance ◽  
Governance Structure ◽  
Narrative Approach ◽  
Future Scenarios ◽  
Structured Interviews ◽  
Sustainable Development Goal ◽  
Development Goal ◽  
Ethnographic Methodology ◽  
Thematic Network Analysis

The paper aims to reveal the politics of urban governance and the associated impact on the lives of disenfranchised migrants. It critically explores the urban governance structure and the nature of practices involved in the cycle of settlement, eviction, resistance and resettlement. The case of Nonadanga, located at the urban margin of Kolkata, India, was explored for this purpose. An ethnographic methodology comprising observation, semi-structured interviews and oral history was adopted for the research. Twelve squatter dwellers and four experts working in Nonadanga and Kolkata were interviewed for this purpose. A three-step data analysis comprising a narrative approach, thematic network analysis and validation was adopted. A critical review of inclusive practices, together with ethnographic survey findings, demonstrates that migrants live in a condition the paper calls “partial rights”, which is a manifestation of the dialectics of inclusiveness practiced by the urban governance structure and derived from the interaction between urban governance structure and migrants’ agency. By analyzing past development trends, the paper outlines possible future scenarios for migrants’ living conditions and discusses their impact on achieving the targeted Sustainable Development Goal 11 for inclusive cities by 2030.

scholarly journals News media attention in Climate Action: latent topics and open access

2021 ◽  
Author(s):  
Tahereh Dehdarirad ◽  
Kalle Karlsson
Keyword(s):  
Sustainable Development ◽  
Regression Analysis ◽  
Open Access ◽  
News Media ◽  
Latent Dirichlet Allocation ◽  
Topic Modelling ◽  
Sustainable Development Goal ◽  
Data Set ◽  
Development Goal ◽  
Climate Action

AbstractIn this study we investigated whether open access could assist the broader dissemination of scientific research in Climate Action (Sustainable Development Goal 13) via news outlets. We did this by comparing (i) the share of open and non-open access documents in different Climate Action topics, and their news counts, and (ii) the mean of news counts for open access and non-open access documents. The data set of this study comprised 70,206 articles and reviews in Sustainable Development Goal 13, published during 2014–2018, retrieved from SciVal. The number of news mentions for each document was obtained from Altmetrics Details Page API using their DOIs, whereas the open access statuses were obtained using Unpaywall.org. The analysis in this paper was done using a combination of (Latent Dirichlet allocation) topic modelling, descriptive statistics, and regression analysis. The covariates included in the regression analysis were features related to authors, country, journal, institution, funding, readability, news source category and topic. Using topic modelling, we identified 10 topics, with topics 4 (meteorology) [21%], 5 (adaption, mitigation, and legislation) [18%] and 8 (ecosystems and biodiversity) [14%] accounting for 53% of the research in Sustainable Development Goal 13. Additionally, the results of regression analysis showed that while keeping all the variables constant in the model, open access papers in Climate Action had a news count advantage (8.8%) in comparison to non-open access papers. Our findings also showed that while a higher share of open access documents in topics such as topic 9 (Human vulnerability to risks) might not assist with its broader dissemination, in some others such as topic 5 (adaption, mitigation, and legislation), even a lower share of open access documents might accelerate its broad communication via news outlets.

scholarly journals Global Warming Potential of a New Waterjet-Based Recycling Process for Cathode Materials of Lithium-Ion Batteries

Batteries ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 29
Author(s):  
Leonard Kurz ◽  
Mojtaba Faryadras ◽  
Ines Klugius ◽  
Frederik Reichert ◽  
Andreas Scheibe ◽  
...  
Keyword(s):  
Global Warming ◽  
Global Warming Potential ◽  
Waste Treatment ◽  
Raw Materials ◽  
Lithium Ion ◽  
Primary Data ◽  
Recycling Process ◽  
Use Of Resources ◽  
Mechanical Removal ◽  
Increasing Demand

Due to the increasing demand for battery electric vehicles (BEVs), the need for vehicle battery raw materials is increasing. The traction battery (TB) of an electric vehicle, usually a lithium-ion battery (LIB), represents the largest share of a BEV’s CO2 footprint. To reduce this carbon footprint sustainably and to keep the raw materials within a closed loop economy, suitable and efficient recycling processes are essential. In this life cycle assessment (LCA), the ecological performance of a waterjet-based direct recycling process with minimal use of resources and energy is evaluated; only the recycling process is considered, waste treatment and credits for by-products are not part of the analysis. Primary data from a performing recycling company were mainly used for the modelling. The study concludes that the recycling of 1 kg of TB is associated with a global warming potential (GWP) of 158 g CO2 equivalents (CO2e). Mechanical removal using a water jet was identified as the main driver of the recycling process, followed by an air purification system. Compared to conventional hydro- or pyrometallurgical processes, this waterjet-based recycling process could be attributed an 8 to 26 times lower GWP. With 10% and 20% reuse of recyclate in new cells, the GWP of TBs could be reduced by 4% and 8%, respectively. It has been shown that this recycling approach can be classified as environmentally friendly.

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