Search results for "RECYCLING"

RECYCLING AND THERMOMECHANICAL DEGRADATION OF POLYETHYLENE/ORGANO-MODIFIED CLAY NANOCOMPOSITES

2013

The future of bottle recycling in the United States of America

2012

In this Master’s thesis, the future of bottle recycling in the United States of America will be examined through interest, incentive and an infrastructure (iii) model. One of the American ways to recycle bottles, namely, the Dream Machine initiative, will be compared to the Finnish bottle recycling system. It will shed light through surveys done from Finnish high school students and randomly selected Americans about bottle recycling behaviour. In addition, two supportive surveys were administered to bring validity about the possible behavioral change through properly implemented recycling systems. The main conclusion is that through a proper implementation of a bottle recycling system, Amer…

Spatial Succession for Degradation of Solid Multicomponent Food Waste and Purification of Toxic Leachate with the Obtaining of Biohydrogen and Biomet…

2022

A huge amount of organic waste is generated annually around the globe. The main sources of solid and liquid organic waste are municipalities and canning and food industries. Most of it is disposed of in an environmentally unfriendly way since none of the modern recycling technologies can cope with such immense volumes of waste. Microbiological and biotechnological approaches are extremely promising for solving this environmental problem. Moreover, organic waste can serve as the substrate to obtain alternative energy, such as biohydrogen (H2) and biomethane (CH4). This work aimed to design and test new technology for the degradation of food waste, coupled with biohydrogen and biomethane prod…

A Green Approach for Recycling Compact Discs

2023

Compact discs (CDs) and digital versatile discs (DVDs) are mainly made by polycarbonate disc, a thin layer of aluminum or silver, a thin layer of a coating and a thin layer of a label of paper or PET. The recycling of these discs is difficult due to the removal of these non-polymeric layers and to our best knowledge, no industrial plants have been resent for their recycling. In this work, we propose a facile way to remove the non-polymeric layers and investigate the effect of the repetitive extrusion process on the processability and on the mechanical properties of the recycled polycarbonate. A few works have been published dealing with both the removal of the non-polymeric layers and the m…

Laboratorio camerte 2016

2017

Le tematiche affrontate nella XXVI edizione del ‘Seminario Internazionale e Premio di Architettura e Cultura Urbana’ hanno rivolto l’attenzione al risanamento e al riuso di spazi, di luoghi e di quartieri urbani dismessi, abbandonati o degradati. Le riflessioni concettuali, teoriche, analitiche, ma soprattutto progettuali presentate nei Seminari e nei Laboratori hanno fornito ulteriori contributi nella proposizione di nuove realtà funzionali indirizzate alla riqualificazione di territori urbani ritenuti oggi ‘vuoti’ non vivibili. Quanto emerso trova riscontro nelle riflessioni introduttive al Seminario del Direttore del SACU, arch. Giovanni Marucci, che sottolinea come sia presente nel prog…

Novel green bio-composite geopolymeric thermo-plasters for innovative building applications: upcycling spent coffee ground

2022

This study proposes the reuse of spent coffee ground and biomass fly ash in the development of green geopolymeric thermo-plastering for innovative building applications. The former waste is the major residue of the brewing process, that is usually used as fertilisers or disposed of in landfill with extreme harmfulness for the natural environment. The latter is an industrial waste generated during the Kraft paper-pulp process, that is usually landfilled. The mortar is produced with a combination of metakaolin (30 wt.%) and biomass fly ash (70 wt.%), and natural siliceous sand filled with spent coffee ground (up to 17.5 wt.%). The high amount of reused waste makes the material an optimum cand…

First volatile inventory for Gorely volcano, Kamchatka

2012

We report here the very first assessment of volatile flux emissions from Gorely, an actively degassing volcano in Kamchatka. Using a variety of in situ and remote sensing techniques, we determined the bulk plume concentrations of major volatiles (H2O 93.5%, CO2, 2.6%, SO2 2.2%, HCl 1.1%, HF 0.3%, H2 0.2%) and trace-halogens (Br, I), therefore estimating a total gas release of 11,000 tons·day−1 during September 2011, at which time the target was non-eruptively degassing at 900°C. Gorely is a typical arc emitter, contributing 0.3% and 1.6% of the total global fluxes from arc volcanism for CO2 and HCl, respectively. We show that Gorely's volcanic gas (H2O/SO2 43, CO2/SO2 1.2, HCl/SO2 0.5) is a…