Interactions between cyanobacteria and metals are very complex, depending on a
large number of factors related to the chemical and morphological characteristics of
the microbial cells, to the physical and chemical properties of the metals to be
removed.
The promising results achieved so far, the increase in the price of chemicals, the
possibility of using naturally occurring cyanobacteria (without production costs),
and the increase in public interest in the use of “green” biotechnologies to solve the
problem of water pollution, open up new perspectives in the use of cyanobacteria
removing HMs from wastewater (Nguyen-The et al. 2016).
4.10 Ecological Restoration
Application concerns for ecological reconstruction, based on deep and long-lasting
fundamental research on biodiversity, environmental protection, and sustainable use
of the heritage of natural or man-made resources, have been important goals of many
studies.
Researchers approached integrated area and global system research to address
practical environmental protection problems related to the productivity, conservation, and sustainable development of natural, agricultural, forestry, and urban
ecosystems; problems of integrated environmental impact management in various
economic activities; as well as the reconstruction of ecosystems following the
destruction of biocenosis in areas affected by natural and man-made disasters,
pollution, and technological dysfunctions, current climate change, etc.
The destructive effect of disturbing factors and ecological disasters on natural or
anthropogenic biocenoses requires ecological reconstruction of the area affected –
through green infrastructure (parks, green areas), landscaping, agriculture or forestry, antierosion, or protection against climate change – and technological and
current perspectives.
The ecological reconstruction, applied on abiotic substrates, polluted and
contaminated biotopes, tailings dumps, discarding materials, and other residues
from mining and other industrial, agricultural, etc. activities, operates with technical
and biological methods that can ensure ecological or ecological succession secondary, respectively: establishment of phyto- and pioneering zoocenoses, concomitant
with pedogenesis, restoration of microbiota, humus and soil properties; phyto- and
zoocenotic reconstruction, cultivation, colonization of species and stabilization of
interspecific relations favorable to the biocenostic productivity and balance of the
new ecosystem.
The mediogenic and phytocoenosis functions ensure ecological reconstruction by
fixing the anthropic relief, setting pedogenesis and soil protection, zoocenosis
formation and conservation of the fauna, microclimate regulation, precipitation
intercept and water regulation, wind speed mitigation, surface leakage, deep erosion
(landslides, ravines, dungeons), deposition of alluviums, etc.
Considering that ecological reconstruction is a particularly important area for
ensuring the quality of the environment and specifying the role of phytocology in the
4 Advanced Technologies for Ecological Reconstruction and Bioremediation of. . .
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