Biosorbent, purifying water from heavy and radioactive metals

Biosorbent, purifying water from heavy and radioactive metals.

 

 

Biosorbent based on fungi and nanoparticles of oxides of iron, titanium, copper – effectively purify water from most of heavy and radioactive metals. For this purpose, non-pathogenic strains of fungi are harmless to humans and the environment. The cleaning process is simple: ions of heavy and radioactive metals deposited on the surface of the sorbent. And thanks to the addition of soda, the process is reversed, the sorbent “let go” of the collected ions of metals.

The technology is awaiting funding!

 

Description

Advantages

 


Description:

Biosorbent based on fungi and nanoparticles of oxides of iron, titanium, copper – effectively purify water from most of heavy and radioactive metals. For this purpose, non-pathogenic strains of fungi are harmless to humans and the environment.

Nanoparticles of metal oxides are already used for the sorption of heavy metals, but these particles are then difficult to remove from water. So create the composite biosorbent: precipitating nanoparticles of metal oxides precipitated on the surface of mushrooms. There are two species of fungi — Aspergillus and Penicillium. These mushrooms are used in the manufacture of citric acid, what allows to use the waste from this production. The mushrooms are extracted from the culture medium before they begin to sporulate, that is still only the body of the fungus. Therefore, the fungus is harmless to humans and the environment. And then on the surface of the fungus precipitated nanoparticles of oxides of metals. The fungus can be dried, crushed into powder or roll into a plate. Active ingredients in such sorbent are obtained, and the nanoparticles, and mushrooms.

The cleaning process is simple: ions of heavy and radioactive metals deposited on the surface of the sorbent. And thanks to the addition of soda, the process is reversed, the sorbent “let go” of the collected ions of the metals, and then it can be reused. The biosorbent can be reused three times.

The analogue of this biosorbent are chemical sorbents. However, their use and production of toxic, however, their price is quite high. Chemical sorbents require special conditions of production and storage. In turn, the biosorbent does not impose specific requirements.

 


Advantages:

ecological cleanliness,

for the production of biosorbent used waste production of citric acid,

– possibility of repeated use,

do not require special conditions of storage, production, transportation,

– low cost.