High Rates Of Recycling Research Articles

A processable and recyclable gelatin/carboxymethyl chitosan hydrogel electrolyte for high performance flexible zinc-ion batteries

Hydrogels are currently under extensive research as flexible quasi-solid electrolytes for zinc-ion batteries. However, the non-degradability and non-recyclability of hydrogel electrolytes pose significant issues, leading to resource wastage and plastic pollution. Moreover, the increasing needs of hydrogel electrolyte with various shapes to meet individual requirements of next-generation flexible battery raise significant challenges. In this study, we introduce the Hofmeister effect and multiple non-covalent interactions to fabricate an eco-friendly and recyclable multifunctional hydrogel electrolyte using biomass natural polymers. This is achieved by simply soaking primary hydrogel networks of carboxymethyl chitosan (CMCS) and gelatin in zinc sulfate (ZnSO4) aqueous solutions, abbreviated as GCZ-x. The GCZ-x hydrogels exhibit both stiffness and toughness due to the formation of crystalline domains and ionic crosslinks. The dynamic physical interactions and temperature and pH responsiveness of the GCZ-x hydrogels enable them excellent processability and recyclability. The zinc-ion battery with GCZ-x hydrogel as electrolyte exhibits high specific capacity and superior cyclic performance (2200 h at 0.1 A g−1) without the formation of zinc dendrites. The GCZ-x electrolyte is sustainable with high recycling rate (above 80 %). It is envisaged that the GCZ-x hydrogel electrolyte will initiate new prosperity of green zinc-ion batteries in energy-efficient and environmentally sustainable ways.

Radiopharmaceutical transport in solid tumors via a 3-dimensional image-based spatiotemporal model

Lutetium-177 prostate-specific membrane antigen (177Lu-PSMA)-targeted radiopharmaceutical therapy is a clinically approved treatment for patients with metastatic castration-resistant prostate cancer (mCRPC). Even though common practice reluctantly follows “one size fits all” approach, medical community believes there is significant room for deeper understanding and personalization of radiopharmaceutical therapies. To pursue this aim, we present a 3-dimensional spatiotemporal radiopharmaceutical delivery model based on clinical imaging data to simulate pharmacokinetic of 177Lu-PSMA within the prostate tumors. The model includes interstitial flow, radiopharmaceutical transport in tissues, receptor cycles, association/dissociation with ligands, synthesis of PSMA receptors, receptor recycling, internalization of radiopharmaceuticals, and degradation of receptors and drugs. The model was studied for a range of values for injection amount (100–1000 nmol), receptor density (10–500 nmol•l–1), and recycling rate of receptors (10–4 to 10–1 min–1). Furthermore, injection type, different convection-diffusion-reaction mechanisms, characteristic time scales, and length scales are discussed. The study found that increasing receptor density, ligand amount, and labeled ligands improved radiopharmaceutical uptake in the tumor. A high receptor recycling rate (0.1 min–1) increased radiopharmaceutical concentration by promoting repeated binding to tumor cell receptors. Continuous infusion results in higher radiopharmaceutical concentrations within tumors compared to bolus administration. These insights are crucial for advancing targeted therapy for prostate cancer by understanding the mechanism of radiopharmaceutical distribution in tumors. Furthermore, measures of characteristic length and advection time scale were computed. The presented spatiotemporal tumor transport model can analyze different physiological parameters affecting 177Lu-PSMA delivery.

A first assessment of Hong Kong's circular economy for wastepaper: Material flows, value chains and the role of the semi-formal informal recycling sector

Collection, as the first stage of the recycling process, and pre-processing to increase waste stream purity constitute key operations for achieving high recycling rates and a closed loop in the circular economy. For wastepaper recycling in Hong Kong, it is the semi-formal-informal recycling (SFIR) sector that plays a central role in both stages. This study analyses the so far little explored SFIR stakeholder network in Hong Kong and sheds light on value chains, recovered waste paper quantities and the impact of policies on the sector. The findings show that SFIR stakeholders reclaim 55.6 t/recycling station/month of wastepaper and thereby achieve about a 5.7 times higher reclaim rate than the formal-private recycling system. Critical to this achievement is the SFIR transaction network, which enables its stakeholders to develop a value chain and thereby generate an added value of around 1900 HKD (243.9 USD/t) for wastepaper. Given limited circular structures in Hong Kong, financial subsidies are critical to sustain the SFIR's operations over the short-term. However, over the long-term legalization and integration of its stakeholders are necessary to ensure an economically and socially sustainable wastepaper recovery system in Hong Kong.

Surface modification of Luffa and Maize fibers by using alkali medium

Agricultural biomass is a well-known renewable resource that has a high rate of recycling. Two of them are luffa sponge and corn husk/maize fibers. Luffa sponge may be effectively used to reinforce lightweight composite constructions because of its polypore structure. For this race, maize fiber is also appropriate. Surface modifications for both of the fibers are needed for increasing mechanical strength with higher interfacial bonding with the matrix materials of composite manufacturing. This investigation involved treating both materials with 5 g/L, 10 g/L, and 15 g/L of NaOH in order to describe the alterations occurring on their physio-chemical characteristics. The therapy lasted 60 min and was administered at 90 °C. Following that, acetic acid was used to neutralize the samples. The ASTM D1445 technique was used to measure the bundle fibers' breaking force and elongation, and the ASTM D570 procedures were used in order to determine the water absorption variation % in the treated samples. The FTIR test and SEM examination revealed the contaminants that were eliminated from the surface of Luffa and Maize fibers. The test findings demonstrated improved modification behaviors for the 15 g m/L treated fibers, which had an elongation percentage of 3.02% and an equivalent breaking force of 5.12 kg for the Luffa fiber and 5.72 kg for the maize fiber. Natural contaminants were eliminated as a result of variations in functional group intensity shown in the FTIR pictures. However, SEM pictures showed that the surface smoothed out for samples treated with 15 g per liter of NaOH, which may be the cause of the fiber's brittle interlocking with the matrix components. Moreover, water absorbency rose by over 300% compared to the untreated fibers. In summary, samples treated with 10 g/L NaOH might serve as superior reinforced materials of composite for both types of fibers.

Hot In-Place Recycled Asphalt Mixtures: RAP Analysis, Compaction Characteristics and Field Evaluation

The substantial accumulation of reclaimed asphalt pavement (RAP) poses a pressing issue in road construction. The hot in-place recycling (HIR) technique has garnered widespread attention due to its high recycling rates of RAP and minimal environmental hazards. This study focuses on the RAP analysis, compaction characteristics, and field evaluation of hot in-place recycled asphalt pavements (HIRAP). Firstly, a novel test method of RAP analysis was proposed to evaluate the suitability of RAP. Subsequently, compaction tests reveal the compaction characteristics of hot in-place recycled asphalt mixture (HIRAM). Finally, the field performance of HIRAP was assessed. The research findings indicate that the RAP analysis method can accurately characterize the status of RAP. Increasing the RAP temperature improves the compaction characteristics of HIRAM. The field tests show that using HIR technology improves the performance of the pavement, in particular with a compaction of 99.7%. This study will establish a theoretical foundation for further promoting the HIR technique.

Amphoteric dry strength chemistry approach to deal with low-quality fiber and difficult wet-end chemistry conditions in the Asian and North American markets

With Japan’s high recycling rates and low access to fresh fiber sources, reaching strength targets in manufacturing packaging materials is a challenge. Declining quality of recycled fiber and minimal freshwater consumption results in difficult wet-end chemistry conditions in terms of high conductivity and elevated levels of dissolved and colloidal substances (DCS). These trends are somewhat typical of other Asian regions. Due to global trade, Asian packaging materials have become a part of the North American (NA) raw material pool. The gradual closing of mill water circuits for fresh water and energy savings results in more difficult wet-end chemistry conditions experienced in North America. China’s ban on the import of mixed paper and the consequent ban on all waste-paper imports triggered a significant price drop in recycled raw material, resulting in plans for increased manufacturing capacity in North America. Between increased demand, decreasing fiber quality, and movement towards more closed white water systems associated with packaging grade paperboard (even a virgin fiber mill uses a fair amount of recycled fiber), new methods to overcome strength reduction in raw materials must be proactively considered for North America. Reviewing the strategies currently used in the Asian industry regarding strength development is an excellent starting place for NA producers. A clear difference between Asian and NA wet-end chemistry is the dominant position of amphoteric dry strength agents. This paper reviews the fundamentals of dry strength development that explain the trend towards the increased application of amphoteric dry strength technology for poor-quality fiber and highly contaminated water circuits in Asian markets. This paper discusses the development and application performance of the novel 4th generation amphoteric polyacrylamide (AmPAM) dry strength technology, based on selected laboratory and mill case studies.

A form-stable phase change material based on intermolecular hydrogen bonding with a high chemical recycling rate

A PEG-based FSPCM was prepared in water via a simple method, using mannitol as supporting material through intermolecular hydrogen bonding. This FSPCM has high latent heat values and can be chemically recycled with recycling rates over 90%.

Modeling the First Hydrogen Direct Reduction Pilot Reactor for Ironmaking in the USA Using Finite Element Analysis and Its Validation Using Pilot Plant Trial Data

Direct reduction of hematite pellets with hydrogen (H2) was used to produce directly reduced iron (DRI) in a pilot scale reactor at a pellet feed rate of 21.4 kg/h. At a steady state, operational parameters of the pilot plant (gas recycling rate and inlet temperature) along with key reactor output parameters, the pellet metallization, and the internal temperature profile of the reactor were reported for two scenarios with high recycle and low recycle rate of H2. Scenario 1, with a high recycle rate of 400 L/min H2 along with external heating of 870 °C, gave an average metallization of 91.8%, while Scenario 2, with low recycle rate of 100 L/min H2 and external heating of 850 °C gave a metallization of 67.8% due to the higher moles of H2 available for reduction and the external energy required for the endothermic reduction reaction in Scenario 1 as compared with Scenario 2. Finite element analysis was used to build a model of the shaft reactor, which was validated against the metallization and internal temperature profile data. The average metallization values predicted by the model were very close to the metallization values obtained from the pilot plant samples, with 90.9% average metallization for Scenario 1 and 65.6% average metallization for Scenario 2. The internal temperature profiles in the lower region of the reactor obtained from the model were very close to these pilot plant data, with a maximum difference of 52.7 °C and 67.6 °C for Scenarios 1 and 2, respectively. The pilot plant reactor model was used extensively in the commissioning of the pilot plant and to predict the startup outcomes for a given set of operating parameters.

Life cycle environmental benefits of recycling waste liquor and chemicals in production of lignocellulosic bioethanol

In recent decades, numerous bioconversion processes and techniques have been developed to utilize lignocellulosic biomass as feedstock in the production of bio-based fuels and materials. However, waste treatment, an important sub-system, is seldom considered in the life cycle assessment of lignocellulose derived products. This study comprehensively investigated the environmental impacts of bioethanol and electricity cogeneration from sugarcane bagasse, with a focus on recycling techniques adopted in waste treatment. A life cycle assessment indicated that high recycle rate of black liquor, acid and waste washing water can substantially reduce the consumption of fresh water, related chemicals and energy by 70–80%. Environmental impacts relating to global warming, acidification potential and primary energy demand can be decreased by 5–10 times or even entirely eliminated. These study outcomes demonstrate significant environmental benefits of integrating waste recycling techniques into lignocellulose biorefinery process, providing a solid foundation for future industrial development.

Green Hydrogen via PEM Electrolysis – Avoiding Iridium Supply Limitations

Proton exchange membrane water electrolysis (PEMWE) is projected to become a key technology to enable the decarbonisation of ‘hard to abate’ sectors of the economy. However, the technology’s reliance on iridium, one of the scarcest elements on Earth, as an oxygen evolution reaction catalyst, has led to uncertainty over whether a large-scale PEMWE industry can be realised. This work investigates the future iridium demand of the global PEMWE sector and examines how different catalyst strategies can improve iridium utilisation in the anode catalyst. Iridium utilisation targets necessary to avoid a situation where the PEMWE sector becomes limited by iridium supply are reviewed. Modelling the iridium demand of the PEMWE sector showed that iridium utilisation needs to improve by an order of magnitude by 2050 to avoid iridium supply limiting the capacity expansion. Furthermore, closed-loop recycling of iridium would increase the installed capacity in 2050 by 170%. If these two conditions are met, global PEMWE capacity could reach 1.3 TW by 2050 using only 20% of annual global primary iridium supply, which we consider to be realistic given future demand projections. Different types of iridium-based anode catalysts are compared in terms of iridium utilisation using catalyst coated membrane (CCM) testing data from the literature. The need to place greater research focus on catalyst stability and the ability to make homogeneous catalyst layers at low iridium loadings is established. As a main result, it is found that a terrawatt-scale PEMWE industry can avoid being constrained by iridium supply as long as technological development of a similar level to that seen in PEM fuel cells and high iridium recycling rates are realised.Reference: Perspectives on Current and Future Iridium Demand and Iridium Oxide Catalysts for PEM Water Electrolysis, submitted to Catalyst Today ‘Catalysis for the Future’ special edition. Figure 1

Soft magnetic ferrite for enhanced anaerobic digestion of food waste: Effects on methane production and magnetic recovery

Soft magnetic ferrite (SMF) is a potentially efficient anaerobic digestion (AD) additive that can be recovered simultaneously along with the microorganisms it carries. In this study, two typical SMFs (Fe3O4 and γ-Fe2O3) were compared in batch experiments to investigate their effects on food waste AD and to examine the recovery characteristics of both the SMFs and the microorganisms they carried after AD. The results showed that Fe3O4 and γ-Fe2O3 addition increased methane production by 31% and 68% respectively, compared with the control treatment. Both SMF materials and enriched microorganisms were effectively adsorbed post-AD using a magnet. The observed enhancement in biomethanization after SMF addition was likely due to enhanced syntrophic acetate oxidation and hydrogenotrophic methanogenesis, and direct interspecific electron transfer. γ-Fe2O3 outperformed Fe3O4 due to its high recycling rate and ability to promote Methanosarcina growth. This study provides a potential economically efficient solution for developing AD enhancement technologies.

Perspectives on current and future iridium demand and iridium oxide catalysts for PEM water electrolysis

Proton exchange membrane water electrolysis (PEMWE) is projected to become a key technology to enable the decarbonisation of ‘hard to abate’ sectors of the economy. However, the technology’s reliance on iridium, one of the scarcest elements on Earth, as an oxygen evolution reaction catalyst, has led to uncertainty over whether a large-scale PEMWE industry can be realised. This work investigates the future iridium demand of the global PEMWE sector and examines how different catalyst strategies can improve iridium utilisation in the anode catalyst. Iridium utilisation targets necessary to avoid a situation where the PEMWE sector becomes limited by iridium supply are reviewed. Modelling the iridium demand of the PEMWE sector shows that iridium utilisation needs to improve by an order of magnitude by 2050 to avoid iridium supply limiting the capacity expansion. Furthermore, implementing closed-loop iridium recycling by 2035 would increase the installed capacity in 2050 by ∼2.7x compared to a scenario with no iridium recycling. If these two conditions are met, global PEMWE capacity could reach 1.3 TW by 2050 using only 20% of annual global primary iridium supply, which we consider to be realistic given future demand projections. Different types of iridium-based anode catalysts are compared in terms of iridium utilisation using membrane electrode assembly (MEA) testing data from the literature, with the order found to be supported nanoparticles ≈ extended surface structures > mixed oxides > nanoparticles. The need to place greater research focus on catalyst stability and the ability to make homogeneous catalyst layers at low iridium loadings is discussed. As a main result, it is found that a terrawatt-scale PEMWE industry can avoid being constrained by iridium supply if technological development of a similar level to that seen in PEM fuel cells and high iridium recycling rates are realised.

Optimization of metal-supported solid oxide electrolysis cells with infiltrated catalysts

Metal-supported solid oxide electrolysis cells (MS-SOECs) are being developed for steam-to-hydrogen electrolysis, especially for utilization of dynamic or intermittent electrical power from renewable sources. Various aspects of the electrocatalyst processing and composition, and metal support structure were explored. Catalyst materials, infiltration temperature and infiltration cycles were optimized for high performance and durability. Numerous catalyst materials were screened for both oxygen and steam electrodes. The oxygen catalyst had moderate impact on both initial cell performance and durability. Reducing Ni content in the steam electrode had little effect on durability, but reduced initial performance. Ex-situ XRD analysis and cell assessment of catalyst infiltration temperature revealed that the optimal range is 750–850 °C. The best cell performance and durability was achieved with LSCF-SDC oxygen electrocatalyst and SDC-Ni (60:40 vol%) steam electrocatalyst infiltrated 11 times at 800 °C and operated at 700 °C. At low steam content, a significant mass transport limitation on the steam side results in limiting current behavior. Thinner and more porous metal supports were implemented, and found to improve steam mass transport at low steam content, relevant for SOECs operating under high H2 recycle rate or high steam utilization.

The circular economy in Romania and in the EU Member States

Abstract The transition to a circular economy could bring many benefits, such as: Reducing the pressure on the environment, improving the security of supply of raw materials, increasing the competitiveness of businesses, stimulating innovation, boosting economic growth and not least creating new jobs. The aim of the work is to highlight the situation of Romania compared to the Member States of the European Union as regards indicators specific to the circular economy. To achieve this aim, the following indicators have been analyzed: Trade in recyclable raw materials, circular use rate of material, municipal recycling rate, and private investment in circular economy sectors, both at Romanian level and across all EU Member States, in the period 2010-2020. The countries with the largest amounts of recycled raw materials are Germany and the Netherlands with more than 1,5 million tons in 2020 and the country-wide extra-EU trade in recyclable raw materials was 25,2 thousand. The Netherlands, Belgium and France are the leading figures for the use rate of recyclable metals. However, the highest recycling rate was registered by Germany with 67%, with Romania among the last countries.

COMBINING EXTENDED PRODUCER RESPONSIBILITY (EPR) AND DEPOSIT REFUND SYSTEM (DRS) POLICY FOR HIGHER RECOVERY AND RECYCLING OF PLASTIC BOTTLES AND SACHET WATER WASTE: APPLICATION OF VENDING MACHINE AND DESIGNATED RETURN DEPOT CENTRE IN LAGOS, NIGERIA

Waste management (Plastic, PET Bottle, Can, and Glass Bottle, mostly from drink and beverage packages) is an important issue in today's world, as the volume of waste increases daily. This is especially important in developing countries like Nigeria, where there are no strong institutionalized frameworks for waste management, and as a result, increasing waste poses a threat to human well-being. Given the increase in population in these countries, it is necessary to adopt sustainable and practical solutions. Especially in Lagos, where the environmental problem of plastic waste is on the rise. Although the government is making commendable efforts to reduce the increasing volume of plastic waste in the state, they are insufficient, as it has been reported that plastic waste accounts for 15% of total waste volume according to the Lagos state waste characterization index. However, with the rise in various environmental problems caused by plastic waste, this paper proposed combining the extended producer responsibility (EPR) and deposit refund system (DRS) to achieve a high rate of recovery and recycling of waste plastic bottles and sachets. The innovative approach used green technology (vending machine) as well as indigenous knowledge are practical solutions in Lagos state. The paper is also significant because it intends to implement the developed solution in a dense urban and rural setting in Lagos, which can be replicated in other states in Nigeria. Furthermore, the components discussed in this paper are elements that allow the proposed concept to function effectively and efficiently. The proposed concept will serve as a link between Lagos and Nigeria's current linear economy and the future circular economy of plastic production and management.

Processing of domestic and wastewater by solar radiation and electromagnetic pulsing to obtain a high rate of useful recycling for the benefit of neighborhoods or small communities

The general purpose of this experimental project is the recovery of water for secondary use from domestic water volumes coming from sources such as kitchen, shower, washing machine, so that through a system of solar radiation, condensation and magnetic radiation it can be purified to an important degree. Main Objective. To obtain heat levels or solar radiation by means of the lens system for incidence on the tubular radiator containing waste water for evaporation and condensation and also processed by pulsed magnetization.

Transferrin receptor-mediated internalization and intracellular fate of conjugates of a DNA aptamer

Aptamers have excellent specificity and affinity in targeting cell surface receptors, showing great potential in targeted delivery of drugs, siRNA, mRNA, and various nanomaterials with therapeutic function. A better insight of the receptor-mediated internalization process of aptameric conjugates could facilitate the design of new targeted drugs. In this paper, human transferrin receptor-targeted DNA aptamer (termed HG1-9)-fluorophore conjugates were synthesized to visualize the internalization, intracellular transport, and nano-environmental pH of aptameric conjugates. Unlike transferrin that showed high recycling rate and short duration time in cells, the synthetic aptameric conjugates continuously accumulated within cells at a relatively slower rate, besides recycling back to cell surface. After long incubation (≥2 h), only very small amounts of HG1-9 conjugates (approximately 5%) entered late endosomes or lysosomes, and more than 90% of internalized HG1-9 was retained in cellular vesicles (pH 6.0–6.8), escaping from degradation. And among the internalized HG1-9 conjugates, approximately 20% was dissociated from transferrin receptor. The lower recycling ratios of HG1-9 conjugates and their dissociation from receptors promote the accurate and efficient release of their loaded drugs. These results suggest that aptamer HG1-9 could be provided as a versatile tool for specific and effective delivery of diverse therapeutic payloads.

Review of guidelines for sustainable municipal waste management: best practices in Brazil

Current integrated management systems involve several dimensions since sustainability has among its fundamental principles the protection of public health and the minimisation of environmental, social and economic impacts. The aim of this study was to provide a review of guidelines for achieving integrated sustainable waste management (ISWM) by presenting a selected best practice in Brazilian cities. A systematic literature review was undertaken to identify current systems and best practices in waste management. The results evidenced the significant role played by all the actors involved (population, private sector, authorities and non-governmental organisations). Political, legal and institutional guidelines ensure an adequate management planning through technical studies, drafting of legislation and technical and operational structure for the provision of services. The economic aspects guarantee the financial sustainability of the system. The socio-environmental guidelines provide for the minimisation of environmental impacts through the reduction of waste generation and social inclusion. The best practices in Brazil showed that municipalities that adopt sustainable integrated management have higher rates of recycling, social engagement, social inclusion, economic sustainability and reduced impacts on the environment. These guidelines serve as a planning tool for any local government to structure an ISWM system.

Plankton community composition and productivity near the Subantarctic Prince Edward Islands archipelago in autumn

The Subantarctic Ocean is a sink for atmospheric CO2, largely due to its biological pump, which is enhanced by the influence of the Subantarctic islands on the plankton ecosystem (the so‐called “island mass effect”). The influence of the Prince Edward Islands archipelago in the Indian Subantarctic on the surrounding hydrography and benthos has been well studied; however, over the last two decades, little attention has been paid to the functioning and productivity of its plankton ecosystem. Here, we present the first measurements of primary production at the archipelago in over 20 years and the first‐ever rates of secondary production, interpreted in the context of hydrographic, biogeochemical, and plankton community composition data. In autumn 2017, after the late‐summer bloom, nanophytoplankton dominated the near‐island waters and regenerated nutrients fuelled 76% of phytoplankton growth. Primary production and carbon export potential (inferred from nitrate uptake) reached a local maximum in the inter‐island region, which we attribute to water‐mass retention and stratification over the inter‐island plateau (a manifestation of the island mass effect). We observed a diverse mesozooplankton community, likely a remnant of the late‐summer bloom rather than representing the consumers feeding on the in situ (nano)phytoplankton. We estimate that even after the decay of the late‐summer bloom, roughly a quarter of the planktonic carbon was potentially exportable. This finding implies that the archipelago's upper‐ocean ecosystem sequesters atmospheric CO2 at least through autumn despite high rates of recycling and inefficient trophic transfer, thereby contributing to the island mass effect‐associated strengthening of the Subantarctic Ocean's biological pump.

Characterizing material liberation of multi-material lightweight structures from shredding experiments and finite element simulations

Most products in automotive, aerospace, and household appliance industry are multi-material structures. Materials are connected through a variety of joining techniques with the aim of optimizing performance during production and operation phase. However, during recycling in the end-of-life phase, different materials combined in multi-material structures need to be liberated, e.g. disconnected, and separated again to enable high material recoveries. Typical recycling approaches use shredding technologies to liberate materials. Efficient material liberation contributes to achieving high recycling rates for end-of-life products set by the European Union, thereby reducing the need for primary resource extraction and leading to a more sustainable development.To characterize material liberation, we conducted an experimental shredding study with multi-material lightweight structures typical for automotive A-frames consisting of steel and composite materials, which were shredded in two sequences in a pilot rotary shear. We characterized feed and resulting progeny particles through a set of quantitative and qualitative metrics, thereby tracking changes in joint characteristics, material composition and particle sizes over the course of two processing steps. We found that material liberation is dependent on many design and shredding parameters. Our characterization approach for feed and progeny particles allows for linking design parameters to liberation behaviour. Due to high variability of design and shredding parameters experimental data acquisition is effortful. Therefore, we present an outlook on first results of our physics-based, numerical simulation model using Finite Element Method. Once validated, shredding simulations of many design configurations shall inform the designer about the liberation behaviour of a multi-material structure, such as the A-frame specimens.