Results also prove that US technology was more sustainable than MW which appears as an energy consuming method in a pilot scale plant.
Separation abilities of membranes allow the elimination of many non-effective and energy consuming methods and their replacement by new, modern technologies, friendly environment friendly.
These chemical methods are used in combination to isolate cellulose fibres from different sources (Espino et al. 2014; Johar et al. 2012; Sheltami et al. 2012; Mandal and Chakrabarty 2011; Moran et al. 2008) and are also found to be efficient and economical when compared to high energy-consuming mechanical methods (Motaung and Mtibe 2015).
Therefore, it needs considering first to prolong the network life by adopting effective energy-saving coverage method and energy-consuming balance mechanism in the research and designing of WSN [6 8].
The approach is very different from conventional anti-icing methods that are often "energy-consuming, high-cost, and environmentally harmful," he adds.
However, most reported preparation methods for graphene-based materials are energy-consuming, time-consuming and environmentally hazardous, what's more, the assembling of SSCs need additives, such as current collectors, flexible substrates.
Nevertheless, the methods mentioned are technologically complicated and energy-consuming.
Among them, the top-down methods often require sophisticated and expensive energy-consuming equipment [31].
Among these methods, vapor-phase processes are expensive and energy-consuming, which are not suitable for large scale production.
The conventional extraction methods for polysaccharides were time-consuming, laborious and energy-consuming.
One of the most energy-consuming functional block of an equipment is the radio front end, and methods to switch it off during the time intervals where it is not active must be implemented.
