© Валерий Доронин
TOMSK, Sept
21 – RIA Tomsk. Scientists of Tomsk State University (TSU) created a cheap
technology of cleaning of the reservoirs polluted by oil, the press service of
the higher education institution reported on Monday.
It is
specified that there can be a leak of oil in oil pipelines which gets to the
lakes located nearby. Poisoning with oil causes anomalies of development in
fishes, leads to disappearance of mollusks and crustaceans. Scientists of the
TSU Biological Institute (BI) together with JSC NTO Priborservice found the
solution of the environmental problem.
"The
technology is based on a flotation method. Pneumatic mechanical influence is
carried out on a place of a congestion of oil as a result of which oil sticks
to the section of two phases – air and liquid – and comes to a surface", –
the director of TSU BI Danila Vorobyov is quoted in the message.
© сайт ТГУ
According
to the press service, the technology was used effectively a few years ago in
the Komi Republic for cleaning of the lake Pike where 157 tons of oil were
lifted from the bottom. The vast majority of the fishes living in this
reservoir had serious congenital anomalies in development. In some years after
cleaning of the lake the number of anomalies was reduced from 100% to 3%.
"Recently
TSU BI scientists improved the invention – they found a way to increase control
of process of raising of oil from a bottom as much as possible. The device
which allows to avoid leak of oil at the time of flotation is created. After
raising of the polluting substance it gathers in primary settler, and then goes
to the floating pools filled with sorbents", – it is told in the message.
Finally the
water which passed all stages of cleaning has the content of harmful substances
below maximum permissible concentration, reports the higher education
institution. It is noted that along with it biologists of TSU developed
technology of cleaning of ground deposits which will allow to carry out
cleaning of a bottom under ice during the winter. According to the scientists,
such option is optimum for an ecosystem of lakes.