Researchers have trawled coastal areas of the Eastern Mediterranean and Black Sea for waste and found up to 1211 items of litter per km². Plastic bags and bottles were some of the most commonly found items. They present the results in a recent study, which they say supports Marine Strategy Framework Directive (MSFD) implementation, as well as efforts to discourage plastic carrier bag use.

The carbon footprint of food waste should be taken into account alongside the the weight of food wasted, says a new study. The research examined three years of food waste data from six branches of a Swedish supermarket and calculated the waste’s carbon footprint. On the basis of their footprint, key products that could be targeted for waste reduction include beef mince, meatballs and cream, the results suggest.

Researchers have designed and proposed a new organic waste management plan for Catalonia, Spain, and presented it in a recent study. They say that the plan would reduce a number of environmental impacts that arise from landfilling biodegradable waste, including natural resource depletion, acidification, and eutrophication.

Sustainable urban waste management has progressed over recent decades, with recycling of waste becoming a routine activity across the EU. However, the increasing volume and complexity of waste poses ongoing challenges for policymakers and municipal administrators. New research suggests that a rethink around how household waste is sorted could lead to more resources being recovered from solid waste.

The main factors affecting household food waste in the EU have been identified by an analysis of the 2013 Flash Eurobarometer survey (n.388). On an individual level, the main factors include age, gender, income and environmental attitudes. On the national level, the most significant factor is median disposable income. The authors suggest their results could help develop campaigns targeted at groups that generate the most household waste.

Transnational environmental crime is notoriously difficult to control. Intelligence-led policing (ILP) has been suggested as one way of tackling the complex issue. This study assessed the use of ILP to prevent the illegal export of e-waste in the UK. The authors found that ILP successfully generated intelligence to address the problem and recommend that cross-border ILP be established to tackle environmental crime in Europe.

A US-based study has confirmed the prominent position that recycling and personal waste management take in the public consciousness. Crucially, the researchers suggest that understanding the popularity of such waste- management activities could help policymakers promote other forms of pro-environmental behaviour.

Around 50% of gold in used mobile phones is not recovered for future use, a new study finds. The researchers suggest that a global circular economy in mobile phones could be created by improving recycling of precious metals in phones in developing countries, as well as increasing the lifespan of phones and improving collection after use. These changes will reduce pressures on non-renewable resources and close ‘metal flow loops’.

A new method of processing food waste into fertiliser has been outlined in a recent study. The process uses a digester system with microorganisms to break down organic waste into fertiliser. The resultant fertiliser was used in a low-energy greenhouse to produce a range of food crops. The method is a potential way to utilise food waste and reduce the energy consumption of food production as part of a circular economy.

A study has evaluated three types of media campaign conducted by a large UK supermarket to encourage shoppers to reduce their food waste. These used social media, an e-newsletter and a print/digital magazine, respectively. Although they all appeared to lead to reductions in food waste to some extent, similar behavioural changes were also seen for customers who had not participated in any of the campaigns.

Recycled waste material could play a major role in the construction of roads in Europe, bringing both environmental and economic benefits. A new study proposes a scenario where 50% of the asphalt for Europe’s roads consists of recycled materials, leading to significant reductions in costs, energy use and greenhouse gas emissions.

A participatory approach to waste management has been tested in Naples, Italy, a city which has experienced ongoing problems with the collection of municipal waste. This study tested a toolkit, which uses stakeholder engagement to improve waste-management decision-making. Residents and other stakeholders supported the use of a technological innovation to develop biomass fuel from municipal waste.

Researchers have examined environmental and economic impacts of supermarket food waste in a new study. Bread and meat products made the largest contribution to the environmental footprint of the supermarket assessed. Alternative waste strategies, such as using bread waste as animal feed, have the potential to reduce these impacts.

Analysis of the operation of a novel, micro-scale anaerobic digester has shown that this technology could provide a useful means of processing food waste in urban areas. The study found that the digester, located in London and fed mainly with local food waste, avoided 3.9 tonnes of greenhouse gas emissions, while providing biogas for cooking, heat and power. Anaerobic digestion on this scale could play a part in reducing the amount of food waste that goes to landfill1 and contribute to the circular economy.

A successful circular economy for valuable metals needs more than just effective recycling technologies, as a new study shows. The research, which explored the governance of recovering vanadium from steel-industry waste, revealed that industry stakeholders feel the prospect of financial gain, or reduced costs, through recovery is too distant at present. This perception could hinder a circular economy for critical materials from industrial residue, the study warns.

Micro, small and medium-sized enterprises comprise the majority of European businesses — and, therefore, have a vital role to play in reducing our dependence on, and consumption of, increasingly scarce resources. A new study explores whether the concept of industrial symbiosis, in which companies use waste products of other industries as raw materials, is common in small- and medium-sized companies (SMEs) — using beer producers and mushroom farmers in Sweden as case studies.

Concern is growing around the issue of energy efficiency in data centres (DC) as more and more data are saved, processed, and transferred to facilitate myriad digital services worldwide. Utilising waste heat from DCs as heating for nearby districts may be a potential solution if technical and knowledge barriers are overcome, suggests this Finnish study, which identified key obstacles to this concept and possible methods of implementation.

Between 13% and 16% of waste electric and electronic equipment (WEEE), furniture and leisure goods disposed of at household waste collection centres are in excellent working condition and could be easily be prepared for re-use, finds a new study from Bavaria, Germany. Improvements to waste collection, storage and treatment practices to prevent damage to disposed items could free up a further 13%-29% of these waste streams for re-use. Notably, weatherproof storage for WEEE at collection points could have prevented up to 86% of the damage endured by the studied items.

Constructed wetlands can effectively remove veterinary drugs from wastewater, preventing contamination of the environment, research suggests. A recent study has demonstrated that laboratory-scale constructed wetlands were able to remove between 94 and 98% of two commonly used antibiotics from pig farm wastewater.

A major environmental challenge for wastewater treatment is the disposal of excess sludge produced during the process. The LIFE Perbiof project has been developing and testing a technology that will help to overcome this challenge. Results demonstrate it can perform highly effective treatment of municipal wastewater (removing 80% of the organic content) while producing low levels of sludge.

Recycling offers a promising means of supplying the rare earth elements neodymium and dysprosium, used in computing and low-carbon technologies, research suggests. If recycling infrastructure and technologies are prepared now to deal with the larger volumes of high-tech waste expected in the future, 7-9% of global demand for these critical elements could be met by recycling by the year 2030.

Using vegetable waste to produce bioplastics can provide sustainable alternatives to non-biodegradable plastic, new research has found. The biodegradable plastic developed for this study, produced using parsley and spinach stems, cocoa pod husks and rice hulls, have a range of mechanical properties comparable to conventional plastics which are used for products from carrier bags to kitchenware and computer components.

Erratum
This article was amended 10.12.14 to give more information about the nature of trifluoroacetic acid.

An economic analysis of 14 common categories of waste electric and electronic equipment (WEEE) has highlighted the economic value of bringing e-waste streams into the circular economy. The overall worth is calculated as €2.15 billion to European markets, with a potential rise to €3.67 billion as volumes increase.

The EU Waste Framework Directive aims to recycle or recover materially 70% of non-hazardous construction and demolition waste by 2020. This study evaluated the performance of the Finnish waste management system against this target. The results showed that the system generates environmental benefits and is profitable, but has not reached the 70% target. The researchers suggest ways the target could be met and recommend region-specific recycling objectives in the EU.

A new analysis of waste recycling systems in Portugal highlights where kerbside (edge of pavement) collection systems could be optimised, to decrease their environmental impact. In this case, researchers found that the kerbside system was less favourable economically and environmentally due to more packaging and more fuel consumption per tonne of waste, compared to a system where recyclable materials are deposited by residents in large containers. But the researchers suggest that measures such as re-usable boxes and efficient collection routes could help to mitigate the impact of kerbside collection. While there is an environmental impact from waste collection, processing and disposal, this study only focused on the collection phase.

A third of all food produced for human consumption is lost or wasted, and the EU alone wastes an estimated 88 billion tonnes of food every single year. This is equivalent to 76 kilograms per person per year. This is an unsustainable level of waste which threatens food supply and the environment. The EU is taking several actions against food waste, as a critical part of efforts to achieve a circular economy, where resources are used more sustainably.

As electronics manufacturers are set to resume operations in India, it is apparent that in the short term there is no alternative to sourcing from China, as urgent replenishment of inventories clearly implies continued dependence on it.

High levels of waste production must be tackled as part of the move towards sustainable living. Recent research has used Sweden as a case study to assess the strength of suitable policies and strategies that are required to break the link between economic growth and waste generation.

Public support for pay-as-you-throw (PAYT) waste schemes is significantly higher among those who have actually experienced them, finds new research. The study indicates that there is less resistance to such schemes, which charge householders a fee that varies with the amount of waste collected, once they have been introduced.

Many EU businesses are failing to cover the net cost of recycling packaging waste, new research suggests. Industry is required to take responsibility for treating and recycling waste packaging in the EU; however, this study shows that producers in France, Portugal and Romania do not fully cover waste management costs.

A Portuguese waste management system for packaging has brought a range of environmental, economic and social benefits, according to a recent study. One of the scheme’s main achievements was that it avoided around 116 kilotons (kt) of CO2 equivalent emissions in a single year, equal to the emissions associated with the electricity use of 124 000 households. These emissions were largely circumvented because the system recovers large amounts of energy and materials from the waste packaging.

Landfill taxes and ‘enhanced waste management’ practices have been introduced to reduce the amount of waste that goes to landfill and to convert waste into useful products. This study investigated the interplay of these two policy options in Belgium, generating findings that could help Europe move towards a resource-efficient, circular economy.

Insights from a recent Italian study could help local authorities across Europe improve their rates of separate waste collection for recycling. The researchers found higher rates of separate waste collection in municipalities with high-quality governmental institutions for waste collection, non-mountainous terrain and higher income levels. Separating household waste into streams, such as glass or food, for re-use and recycling helps free up resources for a circular economy. Good-quality institutions are the main driver of separate waste collection and can overcome barriers such as low economic prosperity.

Tiny plastic particles from laundry wastewater are being washed into the marine environment, according to recent research. The plastic, from synthetic clothes cleaned in domestic washing machines, is a significant source of contamination and, unless measures are taken to address the problem, growing coastal populations will only exacerbate the situation.

The benefits of reusing city wastewater for agricultural purposes can far outweigh the costs involved and reduce overall demand for freshwater, according to a recent study. The researchers calculated that the total benefits to agriculture and a city of a reuse project in Spain outweighed the total costs by €9.5million per year.

Industries, such as paper production, require large amounts of water which can drain vital supplies of fresh drinking water. Researchers working towards the ultimate goal of ‘closing the cycle’ by re-using industrial water onsite have now identified innovative new treatments for wastewater from a paper mill.

A recent study compared the decentralised treatment of pharmaceutical contaminants in wastewater at hospitals with centralised treatment at conventional and upgraded wastewater plants. The results suggest that additional (post) treatments may not always provide significant benefits.

Significant savings on mileage and vehicle costs can be achieved by using computer optimisation to plan waste collection routes, new research suggests. When applied to a case study of cooking oil recycling in Portugal, it was found that the technique could lead to a reduction of 13% in annual distance travelled and a fleet hiring cost reduction of 11%.

The number of earthquakes of magnitude 3 or greater in the central and eastern US has increased significantly in recent years, from about 21 a year between 1967 and 2000, to over 300 between 2010 and 2012. Most of this increase seems to be linked to the deep injection of wastewater in underground wells, according to a recent review of seismic activity.

Untreated wastewater from the baker’s yeast industry can be used to irrigate crops without negatively affecting the chemical quality of the groundwater beneath, recently published research concludes. Although the wastewater increased concentrations of some groundwater contaminants in an area with a high water table, these levels would not pose a risk to human health even if this water was used for drinking.

The EU Water Framework Directive1 requires policymakers to consider the management of water e.g. in rivers, lakes and streams, at the scale of the river basin, but can wastewater treatment systems be managed at the same scale? To help policymakers answer this question, a team of Spanish researchers have created a method for assessing the integrated operation of wastewater treatment plants in a river basin. Uniquely, the method considers both local and global environmental factors and an economic assessment.

The economic viability of wastewater reuse projects could be better determined using methodology from a new study. The authors developed a five-step cost-benefit analysis framework to assess a planned wastewater reuse project within the catchment of the Yarqon River, in Tel Aviv Metropolitan Area, Israel. It was found that the scheme could have a net present value of $4.83 (€4.34) million per year. The authors highlight the relevance of identifying external as well as internal economic, social and environmental costs of such projects.

The release of pharmaceutically active compounds (PhACs) in waste water from treatment plants (WWTPs) is currently not regulated anywhere in the world, with the exception of a few plants in Switzerland. Yet thousands of PhACs or their by-products — excreted by humans — can be found in waste water and some of these may harm biodiversity when released into waterways. For example diclofenac and oxazepam may have negative effects on aquatic species.

As the global population increases, it is increasingly urgent that policymakers and other actors facilitate feasible, sustainable solutions to the issue of food waste. This study explored the market effects of reducing household food waste within the EU. The researchers found that reductions of up to 50% by 2030 would lead to household cost savings, a shrinking agri-food sector, a mild negative macroeconomic impact and desirable reductions in environmental pressures, such as greenhouse gas emissions, land use and water abstraction.

A new study has analysed marine litter on beaches across the UK, indicating that the fishing industry is responsible for large quantities of marine rubbish. The researchers recommend a combination of better enforcement of regulations covering waste disposal, and incentives for fishing vessels to reduce marine litter.

A comprehensive analysis of pharmaceuticals in Spanish wastewater has indicated that they are widespread pollutants. The majority of pharmaceuticals present in incoming wastewater were still present in both treated water and in the river waters receiving the treated water.

A new study from Austria shows that ozonation, a more advanced form of waste water treatment, may be required to further reduce levels of trace pollutants, called micropollutants, in addition to longer treatment times.

Governments and industry must act quickly to address the impacts of rapidly rising volumes of 'nanowaste', according to research. The study warns against continuing unabated release of nanomaterials into the environment and outlines a number of practical steps that should be taken in order to start dealing with the problem.

Light Emitting Diodes (LEDs) are an energy efficient and mercury-free source of lighting, but like other electronic goods they could have some negative environmental impacts, according to research. A US study tested a selection of LEDs and found that they could be classified as hazardous waste owing to levels of lead, copper, nickel and silver. Their use of rare earth metals could also increase pressure on natural resources.

The use of nanomaterials in consumer goods is growing, as is their presence in waste. A new study is the first to follow the fate of engineered nanoparticles through the entire waste incineration chain. The results indicate current filter technology is effective in removing nanoparticles from flue gas, but that nanoparticles also bind to residues, such as fly ash and slag, which eventually end up in landfill.