---------
--------
:
: Chính quy
Chuyên ngành
Khoa
: 2011
2015
---------
--------
:
: Chính quy
Chuyên ngành
Khoa
: 2011
2015
: ThS.
5
i
Thái Nguyên, ngày 29 tháng
Sinh viên
ii
KLN
VSV
CHC
DO
SV
BVTV
BOD
COD
TCCP
CP
TTg
TCVN
QCVN
BYT
UNICEF
LHQ
NS- VSMT
YTDP
iii
.............. 7
................................................................................. 25
- 2014................................................................................................... 28
- 2014 ........................................................................... 29
- 2014................................................................................... 30
.................................................... 31
............ 32
............................................................. 39
................................................................. 40
..... 41
.................................................. 41
....................................... 42
.................................................................................................... 42
.......................................................................................................... 42
iv
HÌNH
.............33
................................34
.............35
..............36
3
......37
.......38
Hình 4.7
.....46
v
......................................................................................................1
.......................................................................................1
..............................................................................................2
.................................................................................................2
..................................................................................................2
................................................2
.....................................................................................2
...........................................................................3
................................................................3
..................................................................................3
.................................................................3
..............................................................4
..........................................................................9
............................................................9
...................................................................................11
.......................................................................11
2.2.2.
....................................................11
..........................12
...................................................14
...............................................................17
ên
...
.......20
......................................................................20
......................................................................................20
.........................................................................................20
.........................................................................20
..........................................................................................20
...................................20
vi
-
-
.....................................................................................................20
ên .............................................................................20
.......................................................................................................21
u....................................................................................21
.......................................................................................21
.............................................................21
...............................................................21
3.4.4. P
..........................22
..........................................................22
...................................23
.......................................24
.....................................................................................................24
...........................................................................................24
-
................................................................................25
4.2.
,
4.2.1. Cá
..............................................................................27
..........................................27
........31
.................31
.........................................32
.......................................38
................38
.........................43
vii
..................................................................49
..............................................................................................................49
............................................................................................................50
1
2
, chính xác và khách quan.
-
3
3
3
3
3
, tron
. [6]
00C và 40
-
4
[8]
-
-
5
Ô nhi
-C
-
-6
-9
-6
-5
-5
-6
6
-
2
SO4, KNO3
* PH
10.
- 10 ppm.
hóa (BOD)
CHC + O2
* Nhu c
CO2 + H2
7
Asen (As)
Cacdimi
(Cd)
Cr6+
Crom (Cr)
liên
Chì (Pb)
máu.
Mangan
(Mg)
cao.
(Hg)
[14]
3,
NO3-, NO2-
2
8
Quá trình oxy hóa
Nitrosomonas
Protein
NH3
Nitrobacter
NO2-
NO3-
3,
gian NH3 và NO2-
3
tphát (H2PO4-, HPO42-
-
- Cl-
- CO2
*
-
-
HCO3-
N2
NO3-, NO2-
9
Mn, Hg.
ng
(Thu Trang, 2006). [9]
nhân khách quan (thiên tai, l
:
hông qua
-
10
(1921
(Thu Trang, 2006). [9]
3
-
11
Trang, 2006). [9]
70%
[7]
2.2.2
12
thô
2.2.2.1.
-
-
-
7%
[13]
13
Theo giám
vong
. [16]
dân
14
này ( Chias.Daniel D,1991). [15]
100
. [17]
). [5]
15
-
4
. [17]
ng ngàn m3
16
000
400.000 m3
1200m3
4,
NO2, NO3
TCCP.
g
nông thôn.
-