Friday, July 10, 2020

Plant- Microbial fuel cell: Generating electricity from green, living plants

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Charvi Trivedi

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Plant- Microbial fuel cell: Generating electricity from green, living plants

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Global Views 360

Publication Date

July 10, 2020

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Marshland near Blythburgh. View over the tidal River Blyth

Marshland near Blythburgh. View over the tidal River Blyth  | Source:  Eileen Henderson via Wikimedia

Humans are capable of discovering and creating great things with the help of science and one such impressive discovery is that green, living plants can generate electricity. It may seem unbelievable, but not impossible.

One must be wondering how this technology works. Well, the answer is quite simple; photosynthesis. Plants excrete organic matter into the soil as a result of photosynthesis. Only some of the organic matter is used by plants and the rest is released in the soil. This released organic matter is broken down by bacteria. In the breakdown process, electrons are released as a waste product. Since the movement of electrons produces electricity, these electrons, which are of no use to the plant, can be harvested. The best part about this innovation is that the plants from which energy is being generated are not affected in any way.

This idea was first put into use by a Dutch start-up called Plant-e. This company was launched in September 2009 and is successful in launching and selling many environment- friendly products like DIY kits to the public for experimentation purposes and modular systems which could be easily installed on green roofs for abundant electricity production. Plant-e is involved in various projects, within The Netherlands, like automatic lighting systems in gardens and many more.

This technology works with the plants which thrive in moist soils and where the water is present in abundance. Therefore marshlands, paddy fields and deltas are some of the most suitable places for setting up plant batteries as a huge amount of water is present in those areas. Hence, the use of this technology is limited to certain geographic areas containing moist soils and cannot be used in arid regions. It may, however, promote the growth of more trees and plants which will gradually reverse the malicious effects of global warming.

Another obstacle in widespread adoption of this technology in today’s time is the high cost of installation of the system. The initial adopters of this technology are those who are attracted by the efficiency and eco-friendly nature of the plant batteries and willing to pay a premium for it.

The concept of plant batteries can be further taken into rural areas where most of the population still does not have access to adequate electricity. It is estimated that plant-MFC technology can cover upto 20% of European Union’s primary future electricity needs. Also, plants are almost 100% efficient at converting photons from sunlight into electrons which indicates a bright future for this technology. However, more research needs to be done in this field.

Another innovation in the field of green electricity is using algae , which often grows in ponds and rivers, for generating electricity. The basic concept which explains the working is similar to the way plants are able to produce electricity; photosynthesis.

Various other ventures in the field of renewable energy also include vegetable batteries, meaning, electric power generated from fruits and vegetables like lemons, tomatoes and potatoes, have been investigated. According to experiments, at least 3 to 4 vegetables are required just to light a small LED bulb. Moreover, it leads to poisoning of the vegetables and those food products need to be thrown away, without being useful for consumption purposes. It is therefore not a viable option for energy production.

Plant based electricity generation is still an evolving technology which has immense potential for producing energy in an environmentally sustainable way. It will realise full potential when the installation cost is attractive enough for the farmers to prefer it over the electricity grids or fossil fuel based personal electricity generator sets.

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February 4, 2021 4:48 PM

Bias and Nostalgia in Hergé’s Tintin

Some of my fondest memories involve sitting under the guava or the European gumtree, perched on the wall of our garden as the sunlight dappled on an old copy of a Tintin comic. For some years, at least, before the gumtree was cut down, the leaves bore witness to me following the globe-trotting adventures of the Belgian reporter, replete with hilariously-named companions and witty play of words. My nostalgia is as much for the inked characters and words on the paper, as for the musty smell of the oft-thumbed and yellowed pages of the comic, and the permanently romanticized view of the sunny garden. The comics have left a palpable imprint on my sense of humour and love of a certain kind of literature. And perhaps it is this imprint, along with my pleasant nostalgia, that makes it a struggling task to accept Hergé’s racism through his Tintin comics.

Hergé’s (or Georges Prosper Remi’s) writings were, undeniably, a product of their times. His first two series in the Adventures of Tintin comics, Tintin in the land of the Soviets (1929) and Tintin in Congo (1931), have famously been the subject of much debate, since the late 1900s. In Soviets, Hergé offers a crude critique against Marxism – meant to inculcate anti- Soviet sentiments in the European youth at the time, by portraying the Bolsheviks as inherently evil without a full comprehension of how they rose to power or what their political views were.

In Congo, African tribes and leaders are portrayed as either infantile, or in need of saving, to the extent that Tintin becomes the embodiment of fairness for young Africans, even having a temple made after him. Congo itself was a colony of Belgium from 1908 to 1960, one of the two colonies that Belgium governed, and the comics grossly ignore the labour politics of the Congolese and their efforts in both the World Wars. It was not until after the decolonisation of Africa that European perception of ex-African colonies changed.

Much of the modern debate surrounding the banning of select Tintin comics is centred around the depicitons of big-game hunting in Congo and the anti-Semitism in the The Shooting Star. Besides the uncomfortable portrayals of the Congolese, a few panels in the 1931 edition of Congo depicted Tintin drilling a hole into a live Rhinoceros, filled with dynamite, and blown up. In the 1946 edition, this scene was replaced, with Herge apologizing for what he recognized as “youthful transgressions''. In the Shooting Star, the villainous financer was renamed, from the Jewish Blumstein to the innocuous Bohlwinkel.

Hergé’s subsequent works became politically neutral, written after the German occupation of Belgium and the German takeover of Le Vingtième Siècle, the conservative Catholic newspaper he wrote for. While the white-saviour narrative continued with Tintin leading as the embodiment of Europe that “natives” had to follow, the later works are much less politically biased.

However, he prefaced Tintin in America with a critique against the racism in the United States, alongside his anti-imperial stance in The Blue Lotus. He is also known, famously, for not joining with the far-right extremist forces in German-occupied Belgium at the time, as many of his colleagues had. Michael Farr, a British expert on The Adventures of Tintin series, claimed after a meeting with Hergé that “you couldn’t meet someone more open and less racist”. Others have called him an opportunist, heaving towards the side that was popular. Perhaps this was indeed the case, or equally, perhaps Hergé did change his views, and his writings in Soviet and Congo are merely reflective of the predominant Belgian culture at the time.

At any rate, the question still remains: how do we read, or re-read, Hergé (or many such childhood-favourite authors, like Dr. Seuss)? Shelving the books and forgetting the authors is undoubtedly impossible, and misguided besides. A recognition of the biases, and a plethora of context surrounding these texts must be made available at all times. A celebration of a character or a person must not come at the cost of ignoring their uncomfortable stances.

The depiction of Africa in 20th century comics has been abysmal. A tendency of depicting the 'other' as a 'noble-savage' is a familiar concern to those readers who have spent much of their lives in recently liberated colonies. It is, perhaps, especially imperative for such readers to keep this in mind and not repeat them.

In our Consumerist times, it seems, we sometimes forget to start dialogues on themes that are unfamiliar and maybe even uncomfortable to us. We forget which stories desperately need to be told and which have not seen the light of day under the shadow of popular literature.

This, at least, is what I have strived to do: to maintain a balance between nostalgia and a recognition of biases. My memory of the Tintin comics will remain just as romantic as the idyllic memory I started with in the beginning of this article.

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