Elsevier, Sustainable Materials and Technologies, Volume 14, December 2017
Corrosion inhibition performance of an environmentally friendly compound, 8-hydroxyquinoline (8-HQ), on X60 steel was investigated in 15% hydrochloric acid (HCl), which simulate oil well acidizing environment. Efficacy of the inhibitor was examined utilizing weight loss, potentiodynamic polarization (PDP), electrochemical frequency modulation (EFM), linear polarization (LPR), and electrochemical impedance spectroscopy (EIS). Results show increased inhibitor efficiency with increase in concentration of 8-HQ and was further enhanced when iodide ions were added.
Elsevier, Sustainable Materials and Technologies, Volume 14, December 2017
The versatile use of droplet coagulation to recycle complex waste resources (fly ash FA, rice husk ash RHA and alum sludge AS) was investigated. Monodisperse microspheres were shaped, creating higher impact on the applicability of the waste resources. In order to obtain a suspension with appropriate rheological properties, pre-processing was required for the AS powder in contrast to the RHA and FA powders. Furthermore, the impact of the shaping process and waste stream properties on the calcination and sintering was determined and correlated to the microstructure of the sintered spheres.
Elsevier, Sustainable Materials and Technologies, Volume 14, December 2017
Metal-organic framework (MOF) materials are porous materials with high surface area that offer enormous flexibility of design and tailoring of its surface properties to be used in diverse chemical processes. Most of the reported properties of MOF materials were evaluated in powder materials produced in small scale where the synthesis has been optimized to obtain crystalline powders. Ideally, the industrialization of these materials will also be associated to efficient scalable synthesis protocols.
Elsevier, Current Opinion in Green and Sustainable Chemistry, Volume 8, December 2017
Chemistry made once expensive leisure activities available to public by providing inexpensive materials for fishing rods, golf equipment etc. Nowadays, eco-minded costumers wish the impact of their leisure activities on environment as little as possible, and thus expect materials to be overall sustainable. Particularly, the hospitality sector has to fulfill the expectations of eco-minded tourists who prefer hotels engaged in activities for protecting natural resources and working against waste accumulation.
Waste is an extremely valuable resource that we have been accumulating over a long period. Interesting and viable organic “waste-to-resource” opportunities include plastics and food supply chain wastes. Their use as chemical feedstocks will fit well with a circular economy model. Plastics is a major waste opportunity: worldwide we only recycle a few % of the plastic we use, yet plastic manufacturing consumes some 10% of all the oil we consume, and much of it causes serious environmental damage through negligent release.
Elsevier, Current Opinion in Green and Sustainable Chemistry, Volume 8, December 2017
The replacement of the fossil resources historically employed for chemicals’ production is of major scientific interest the last decades, as a result of the environmental issues arisen and the price versatility of petroleum. Biotechnological routes present promising alternatives for the production of various platform chemicals such as succinic, lactic and muconic acids among others. The utilisation of agricultural and agro-industrial waste and by-product streams would not only reduce the overall production cost but also it would assist towards the direction of the bio-economy era.
Elsevier, Global Food Security, Volume 15, December 2017
This paper shows that despite progress in reducing extreme poverty, little progress has been made in reducing the number of people living on between $1.25 and $2 a day and it provides updated estimates of rural and urban poverty for regions throughout the developing world. It then shows the dramatic growth in recent decades in government expenditures on social protection, defined broadly. Next it shows that social assistance coverage is lowest and amounts transferred the smallest in parts of the world where poverty is most widespread.
Increasing attention has been given to historically and culturally significant traditional villages in China in the past five years. Two key themes have been protection and usage. Rural tourism has been recognized as a key approach to rural development and poverty alleviation. Through a systematic knowledge review, this paper proposes an integrative and sustainable Rural Tourism-based Traditional Village Revitalization model to better understand the relationship between rural tourism and village revitalization.
Elsevier, The Lancet Gastroenterology and Hepatology, Volume 2, December 2017
The WHO global health sector strategy on viral hepatitis, created in May, 2016, aims to achieve a 90% reduction in new cases of chronic hepatitis B and C and a 65% reduction in mortality due to hepatitis B and C by 2030. Hepatitis B virus (HBV) is endemic in sub-Saharan Africa, and despite the introduction of universal hepatitis B vaccination and effective antiviral therapy, the estimated overall seroprevalence of hepatitis B surface antigen remains high at 6·1% (95% uncertainty interval 4·6–8·5).
