FarmTech:

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1. You don't need a tank laod of water to generate some electricity. It can be a small flow-through system where the water flows in and then out. Most home wastewater end up in gutters. If you can treat it and also get energy out of it, it is a good achievement.
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2. The large volume input is wastewater. You are not buying it.
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3. This is not meant for every nigeria. It is suitable only for people who have the zeal to figure it out. Most Nigerians are not like that. A simple MFC can be made from earthenware pots and pencil leads as the electrodes.

FarmTech:
[b]2. Microbial Desalination Cell (MDC): [/b]Here, microbes are used to turn salty water into fresh, drinkable water. According to wikipedia, only 0.3% of the earth's water supply is usable for human consumption, while over 99% is sequestered by oceans, glaciers, brackish waters, and biomass. With MDC, these unusable water can be made fit for human use.

DeJoeee:
Show us sample of your work

JackDaAlienz:
Now
Black man
Even if God come down from Heaven and show black race the secret of technology to help them advance and live better, they will still fumble and give excuses

Now I know why whites are more advanced in life and why Africans are selling their land just to travel abroad.
Tufiakwa!!
Only thing you blacks do is to build churches up and down making pastors rich
Someone is showing you priceless information and this is the trash you all can come up with??

WibusJaga:
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OP would have been richer than Dangote if this was Economically Viable.

SolarEngr:


I meant this post.

Bobbiee:


1. You still didn't address my point in (1).
2. My point in (2) where I talked about the low power output isn't addressed either

Allanoba:

Nice
I work in a research organization I m really excited about what you are doin maybe we can share tots about certain things in future

WantsandMore:
How many watts can this generate at a go?

Adakintroy:


Aside if You coming to a third world under develops countries come with working practicality. Not with theories. We not educated to relate that way. you said it yourself. If we were that intelligent in the first place we will be Europeans .

FarmTech:

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By connecting the outputs in parrallel and series, you can boost the power. The li k below said that 1 kW/m3 (reactor volume) has been achieved. But there are still challenges for commercialization. But that doesn't mean that an individual cannot produce and use it comfortably. https://www.sciencedirect.com/science/article/pii/B9780323907651000174

MajorOvakporaye:

FarmTech:

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Interesting. Can you remember the result you got (voltage and current)? Which electrodes did you use?

damoobaba:


What was the result, do you still pay for NEPA light?

FarmTech:

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Flow through system minimize volume. The anode chamber that contains the dirty water is anaerobic, meaning it is enclose to prevent air from entering.
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Yes the output is small, but you are reducing the harmful effect of wastewater while getting sth out of it.

Mario619:
The fact that I was born without my permission annoys me. That Push! Push! shows I was forced to be here.😭

FarmTech:
The anode can be made from graphite, carbon brush (best), carbon cloth, carbon veil, stainless steel mesh etc. The cathode can be made from activated carbon (AC), modified activated carbon, AC mixed with polytetrafluoroethylene (PTFE) and pasted on a stainless steel mesh, carbon black, carbon black modified with aerogel, carbon nanotubes (CNT), carbon nanofibers (CNF) graphene etc. Don't let these names scare you though. Some of them are quite simple to obtain. For example, you can use the lead in pencil as graphite. You can make activated carbon by treating charcoal with chemicals like lemon juice, bleach, potassium hydroxide, calcium chloride, phosphoric acid etc.

What happens in a MFC is that microbes attached to the anode surface will eat organic matters and produce:

1. Carbon dioxide (CO2)
2. hydrogen ions H+ and
3. electrons.

The electrons will flow externally from anode to the cathode as follows: from the microbes to the anode; anode to copper wire; copper wire to the load and load to the cathode. This electron flow generate electricity that powers the load.

Internally, the hydrogen ions will flow to the cathode chamber through the separating membrane where it will combine with electrons and oxygen to form water.

One disadvantage of microbial fuel cell (MFC) is their low power output. A MFC with a 1 square meter anode surface area will produce only about 0.4 miliwatt depending on the type and components used. You need about 1 watt (1000 miliwatt) to light up a high power LED light. So a MFC needed to light up this LED will need to have an anode surface area of about 2500 square meter (Roughly one-third of a football field!). But there is hope due to new scientific advances that have been made after years of research. By using specially made electrodes and more effective configurations, power output have been boosted (up to 2 watts per square meter!). By connecting the output of many MFC in series or parallel, MFCs have been successfully used to power LED lights and even charge mobile phones.

Pic of 1w Led
Pic of series parallel

Soil-based microbial fuel cells
In this type of MFC, the anode is buried few centimeters in the soil while the cathode rest on top of the soil (or it is slightly buried), and is exposed to air. The soil must be wet and rich in organic matters like dead leaves, manure etc.

mjuvey3:
Can a blinker of electricity generated from this method roast a corn?

Nostring:
do one make we see am.. no dey post bunch of theories

Bobbiee:


You're not very good at explaining things, are you huh?

opeey:
My project report. FarmTech

ManIzHot:





This is great resource here, thanks for this, I might contact you for further clarification