Final report from PUTCHAKARN Awassada


Final Report
(Submission Deadline: 18th September 2014)

Kasetsart University
Group No.

You will write a report (500 words) on your group’s discussion.
In the report, you will:
A)      propose how you can contribute as a specialist to realize your group’s master plan, and
B)      propose a title of research paper related to the master plan.

   The world population is increasing every year from the mid-2013 there are population around 7.2 billion and will reach to 8.1 billion in 2025, in the future will increase to 9.6 billion in 2025 and 10.9 in 2100. This assumes a decline of fertility for countries where large families are still prevalent as well as a slight increase of fertility in several countries with fewer than two children per woman on average according to the increasing population in the world, the amount of the household waste is also increase. Especially, the waste of human from the toilet and household wastes. This is including human feces and black-water. Because of that we have to collect and reuse for other purposes such as biogas plant, and organic fertilizer.
   The biogas plant is a commonly used biofuel around the world and is generated through the process of anaerobic digestion or the fermentation of biodegradable materials such as biomass, manure, sewage, municipal waste, rubbish dumps, septic tanks, green waste and energy crops. This type of biogas comprises primarily methane and carbon dioxide. The actual composition of biogas will vary depending upon the origin of the anaerobic digestion process which anaerobic digesters can be fed with energy crops such as biodegradable wastes, including sewage sludge and food waste. An air-tight tank transforms the biomass waste into methane producing renewable energy which can then be used for heating, electricity, and many other operations that use any variation of an internal combustion engine.
    In our master plant we will make Biogas plant and organic fruit from household wastes including human feces and solid waste. The first of step we will take the waste from house and city to our land that quite far from city mash the wastes and mix well then send to the biogas system. When organic waste from households and human feces is broken down by micro-organisms, biogas is produced. For most efficient use this raw biogas is then upgraded to maximize its energy content.
Biogas is a clean energy source. Bio-methane is interchangeable with conventional natural gas thus can be injected into the natural gas grid, used as vehicle fuel as either compressed re-newable natural gas (RNG) or as liquid renewable natural gas.
    For fertilizer from biogas system we will take it to our organic orchard that’s the tree wall for decrease bad smell from biogas plant and can harvest the fruit as well, the tree that we choose is evergreen tree because, their leaf will always block and decrease the wind flowing from our system to the city, the evergreen tree including Mango tree and Mangosteen tree, those of fruit are important export fruit from topical country.
   In our target for this master plan we need to decrease the amount of household waste leading to the increment of spreading of water and food borne diseases, decrease the greenhouse gas (GHGs) emission from human, deteriorating nature environment and lead to the better quality of live and city.

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