What is the use of waste to produce useful things?
Answers
Answer:
Explanation:
1. Biogas. Methane gas which is produced by human waste can be tapped and used to produce biogas. could be used to generate electricity, cook food, and heat water for domestic or industrial use.
2. Fertilizer
Human waste can be utilized as a fertilizer to increase the production of food. The waste is however recommended to be treated at least once before its application on the farm. Treatment is applied to the collection of feces, urine and water from households that is digested by bacteria to reduce the number of pathogens and make the sludge less biologically active hence stinks less.
The use of sludge in agriculture threatens residents around the farm with odor and might pose health problems for those working on the farm. Urine can irrigate fields in the case where water is scarce. Where urine is involved in irrigation, there has to be keen consideration on hygiene. Even though urine poses a danger to human health, it contains nitrogen, potassium and phosphorus that are essential minerals to plants. Access to urine for irrigation is cheap bearing in mind its usefulness.
3. Fecal Transplant
Clostridium difficile is an infection of the gut characterized by inflammation, abdominal pain, and diarrhea. Overabundance of bad bacteria in the gastrointestinal tract is the cause of this infection. A remedy to these bacteria is the use of feces from a healthy person and delivering it to the gut of the patient. Delivery of feces can be done in several ways such as using a tube through the patient’s anus and rectum or shooting of frozen fecal matter through one’s nose.
Fecal transplant is preferred because invasive surgery involves chopping, removing, or diverting of organs to get rid of bad bacteria. Moreover, fecal transplant is quick, inexpensive, and more effective than antibiotic administration. Of importance is that through this procedure there is reduced antibiotic resistance which is the ability of microbes to resist medication that previously treated them. However useful the procedure is, careful selection of the donor is important to avoid passing of bacterial and parasitic infections.
4. Hydrogen Fuel
Hydrogen fuel can be deduced from human waste through the same process as the one of passing current through water. It proves to be more efficient with less energy required in the process. Water is distilled from human waste solids then the waste is left in air-sealed tanks for microbial action to take place. This results in the formation of methane and carbon dioxide.
Methane formed in this process is cheaper as compared to relying on natural gas. Methane and carbon go through a tri-generation process that produces hydrogen fuel, heat, and electricity. With the abundance of human waste, consistent supply of hydrogen fuel can be achieved. Hydrogen fuel can be utilized in running of rockets and production of electricity by combining hydrogen and oxygen atoms.
5. Brick-making
Who knew that human waste could be used in the making of bricks? Incinerated sewage sludge ash is combined with vegetable oil in the making of bricks. These bricks are carbon-negative as oil used is derived from plants, which have sucked carbon dioxide from the atmosphere.
Also, in utilization of such bricks in construction, one protects the environment considering that traditional bricks are made using processes that emit carbon dioxide. Human waste that traditionally would be sent to a landfill is utilized to build structures of many kinds without a scent and it is pocket-friendly.
The bricks are lighter and stronger which means wide usage of such bricks would revolutionize the construction industry not mentioning improvements could be made to them to make them better over time. Making of these bricks could serve as a source of revenue for many.
6. Fuel
In developing countries, the majority of the households cook using biomass. Charcoal being the major source of energy, leads to the degradation of forests. A great solution is the use of human poop heated in the sun as fuel. This alternative fuel burns for two times longer compared to charcoal and releases lesser carbon monoxide. Packaged as briquettes, one ton of these briquettes saves around 88 trees and proves to be a cheaper source of energy.
The process of making this fuel begins with treatment of fecal waste by heating it in a waiting container so as to remove any harmful pathogens. The waste is heated by the sun to temperatures of around 60o C for three hours. Further improvements in technology would help mean that the lowest possible temperature and time can be used to sanitize waste. Upon cooling, hard and solid briquettes are formed as a result of the high fiber content present in feces.
Answer:
Explanation:
For using more and more 3R process