Microbial Desalination Cell (MDC) is a novel technology able to produce sustainable drinking water by using the energy provided from the metabolism of electroactive bacteria when organic matter is degraded, allowing simultaneous desalination of water, treatment of waste water and production of electricity.
How is contaminated water treated?
Filtration – The clear water on top passes through filters composed of sand, gravel and charcoal to remove dissolved particles such as dust, parasites, bacteria, viruses and chemicals. Disinfection – Chlorine or chloramine is added to kill parasites, bacteria, viruses and germs.
How biology is used in desalination?
Reducing the cost of seawater desalination by copying the action of cell membranes. Many narrow biological pores do just this: a pore of a given radius surrounded by non-polar atoms can allow for water to pass, but impede the passage of ions. …
What bacteria eats salt?
The halophiles, named after the Greek word for “salt-loving”, are extremophiles that thrive in high salt concentrations. While most halophiles are classified into the domain Archaea, there are also bacterial halophiles and some eukaryotic species, such as the alga Dunaliella salina and fungus Wallemia ichthyophaga.
How long does it take to get sick from contaminated water?
Anyone who has been drinking from a contaminated source can experience vomiting, diarrhea, stomach pains and mild fever. Some may feel ill three to four days after eating or drinking from a contaminated source, but it’s not uncommon for a person to feel ill on day one or even day ten.
What are the symptoms of contaminated water?
Signs/Symptoms of Drinking Contaminated Water
- Gastrointestinal Problems.
- Diarrhea.
- Nausea.
- Intestinal or Stomach Cramping.
- Intestinal or Stomach Aches and Pains.
- Dehydration.
- Death.
What are the methods of desalination?
The traditional process of desalination is distillation, i.e. boiling and re-condensation of seawater to leave salt and impurities behind. Currently there are two technologies with more desalination capacity in the world, multi-stage flash distillation and reverse osmosis.
What does desalination contain?
Desalination converts saline water with high salt content, about 3.5% by weight in seawater and about 0.6% in brackish water, into fresh water suitable for drinking and other purposes.
Which bacteria is found in saline water?
How do I know if I drank contaminated water?
Signs/Symptoms of Drinking Contaminated Water
- Gastrointestinal Problems.
- Diarrhea.
- Nausea.
- Intestinal or Stomach Cramping.
- Intestinal or Stomach Aches and Pains.
- Dehydration.
- Death.
What happens if you drink water with E coli in it?
Diseases acquired from contact with contaminated water can cause gastrointestinal illness, skin, ear, respiratory, eye, neurologic, and wound infections. The most commonly reported symptoms are stomach cramps, diarrhea, nausea, vomiting, and low-grade fever.
What happens if you drink water with bacteria in it?
The presence of coliform bacteria, specifically E. coli (a type of coliform bacteria), in drinking water suggests the water may contain pathogens that can cause diarrhea, vomiting, cramps, nausea, headaches, fever, fatigue, and even death sometimes.
What is desalination and how does it work?
In major desalination methods the feed water is treated and two streams of water are obtained Treated potable fresh water that has less amounts of salt and minerals (treated water or product water) Concentrate or brine that has salt and mineral concentrations higher than that of original feed water or saltwater [ 7, 8 ].
Is there a new method for water desalination using microbial cells?
A new method for water desalination using microbial desalination cells Environ Sci Technol. 2009 Sep 15;43(18):7148-52.doi: 10.1021/es901950j. Authors Xiaoxin Cao 1 , Xia Huang, Peng Liang, Kang Xiao, Yingjun Zhou, Xiaoyuan Zhang, Bruce E Logan Affiliation
Can water desalination be done without electrical energy input?
It is shown here that water desalination can be accomplished without electrical energy input or high water pressure by using a source of organic matter as the fuel to desalinate water. A microbial fuel cell was modified by placing two membranes between the anode and cathode, creating a middle chamber for water desalination between the membranes.
How is a microbial fuel cell modified to produce water?
A microbial fuel cell was modified by placing two membranes between the anode and cathode, creating a middle chamber for water desalination between the membranes. An anion exchange membrane was placed adjacent to the anode, and a cation exchange membrane was positioned next to the cathode.
