thực vật cải tạo môi trường nước

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Thực vật cải tạo môi trường nước
Phytoremendiation
Lớp: 17DTNMT1A
GVHD: Lương Quang Tưởng
Thành viên: Nguyễn Nhật Thịnh
Phạm Thị Kim Trang


Phytoremendiation
Phyto Remendiation
(Thực vật) (Phục hồi)
Was born in 1991.
It is widely used to refer to the technology used to
remove organic pollutants (Plant protection products,
high molecular weight…) and inorganic (Cu, Zn, Pb, Cd…
even radioactive elements) out of the contaminated
enviroment (Land, Groundwater, Wastewater, Sludge…).


The mechanisms of phytoremendiation

Phytovolatilisation
(Bay hơi)

Phytoextraction
(Tách chiết)

Rhizofiltraction
(Lọc)

Phytoremendiation
Rhizophere
Bioremendiation
(Xử lí bằng vùng rễ)

Phytotransformation
(Chuyển dạng)

Phytostabilisation
(Cố định)


Treatment by algae
* Waste water treatment and nutrient recycling
* Turns solar energy into energy in living
organisms
* Destroy the germs



Treatment of wastewater
In large-scale aquatic plants
* It can be detrimental to humans because of
their rapid development and wide distribution
* However, use them to treat waste, make
division compost, food for humans and cattle

Some typical aquatic plants
Species
Floating plant life
Thủy sinh thực vật sống trôi
nổi

Living aquatic Plant
Thủy sinh thực vật sống nổi

Living aquatic Plant
Thủy sinh thực vật sống
chìm

Common name

Science name

Lục bình

Eichhornia crassipes

Bèo tấm

Wolfia arrhiga

Bèo tai tượng

Pistia stratiotes

Cattails

Typha ssp

Bulrush

Scirpus spp

Sậy

Phragmites communis

Hydrilla

Hydrilla verticillata

Water milfoil

Myriophyllum
Spicatum

Blyxa

Blyxa aubertii



Application

Treatment of polluted water in the lake

The task of aquatic plant
In processing systems
Body part
Roots or trunks

Body, leaf in the water or above
the water

Mission
It is a clamshell for bacteria to grow
Filter and absorb solids
Absorb sunlight thus preventing the
growth of algae
Reduces the effect of wind on the
processing surface
Reducing exchange between water and
the atmosphere
Transfer the oxygen from the leaves to
the roots


Advantages
Use sunlight
On-site treatment
Low cost, 10% to 20% compared to conventional
Less secondary waste
No smell
The treated soil can continue to be used

Defect
Limited biomass
Limited to shallow soil, folwing water and
groundwater
Bioaccumulation potential and toxicity of
decomposition products have not been determined
Contaminants are likely to enter the food chain
through herbivorous plants
Contaminants can penetrate deeper into the
groundwater by the roots


Conclude
Plant technology is a new technology
Prospect for cleaning metals in soil
The development of propagation and molecular
biology is essential for this type of technology
The prospect of transgenic plant in cleaning
contaminated areas