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 5:00 PM

With a new Anti-Terror Act: Philippines take another step towards authoritarianism

On July 3, 2020, President of the Philippines, Rodrigo Duterte signed a new Anti-Terrorism Bill, which was rushed through the houses of Congress without appropriate discussion, and has amassed protests and disapproval within the nation and abroad since its draft was first announced.

The Confederation of Lawyers in Asia and Pacific (COLAP) has raised concerns that anti-terrorism bill of the Philippine government is “violative of human rights and the due process of the law.” It's statement opposing the the bill stated following concerns with the bill:

  1. It punishes suspected individuals for organizations who are proscribed as terrorists and that the very broad and vague definition of terrorism under the bill poses danger to the basic freedoms of the people.
  2. The suspect’s right to due process of law is virtually denied and the presumption of innocence until proven guilty by a court is virtually negated.
  3. It enable the President-backed Anti-Terrorism Council to label any individual or group as a terrorist “without the opportunity of being heard.
  4. Any member or sympathizer of a proscribed organization is punished as a terrorist even if he or she does not actually take arms against the government.
  5. The bill encroaches on one’s privacy as it gives the government access to personal and bank information and freezes bank accounts and assets.
  6. The bill violates the sovereign rights of states and the internationally mandated norm that criminal jurisdiction is confined to the territories of a state, citing its extraterritorial nature.

Hundreds of protestors took to the streets of Manila protesting the bill on 27th July when President Duterte gave his annual State of the Nation address. While it is true that the has nation faced the threat of terrorism in recent years, it is also agreed upon that Duterte’s response has been perhaps equally brutal.

This bill was also criticised by the Christian religious organisations which issued a joint declaration on this law. They stated “We are bothered by the broad and vague definition of terrorism and terrorist. It can include acts of dissent, free speech, right to assemble, right to organize, freedom of belief, among others. By such a broad definition it is open to abuse and misuse.”

An opposition Congress member, Edcel Lagman and two lawyer groups of Philippine approached the Philippine Supreme Court and asked it to strike down the new anti-terrorism law, or parts of it, as they called it unconstitutional for infringing on civil liberties.

The Philipino American Student Association (FASA) also denounced the new anti-terrorism law in its Instagram post which stated, “FASA sa UW denounces Duterte’s signing of the Anti-Terrorism Bill to which its terms do nothing to resolve the true terrorism in our nation and instead conducts an outright assault on the freedom of speech from our people living on the motherland and even Filipinx abroad,”

International Human Right organisation, Amnesty International’s Asia-Pacific Regional Director, Nicholas Bequelin, in response to this law said, “Under Duterte’s presidency, even the mildest government critics can be labelled terrorists. He further stated, “This law’s introduction is the latest example of the country’s ever-worsening human rights record. Once again, this shows why the UN should launch a formal investigation into ongoing widespread and systematic violations in the country.”

Prior to this, Duterte’s ‘war on drugs’ received global scrutiny, especially for the numerous extrajudicial killings that have occurred since he came to power and the effect of this aggressive policy on the poorest citizens of the nation.

Apart from this, he has also repeatedly voiced opinions in favour of martial law and silenced news media that spoke against him. But he seems to be encouraged largely by his own people, among whom Duterte continues to be popular.

Many have called Duterte the ‘revival’ of authoritarianism in the small Southeast Asian country, which has only recently seen some semblance of democracy after years of dictatorship under Ferdinand Marcos (of whom Duterte was a close family friend).

The Philippines is walking a thin line between fascism and democracy, and which side it ends up on depends not only on the actions of its government, but just as much on the actions of its people.

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