S GIAO THNG VN TAI QN__CNG HOA XA HI CHU NGHA VIT NAM

Thuyt minh Quy Hoch Chi Tit 1/500 Khu ci tng m m phc v GPMB d n ng cao tc Nng-Qung Ngi on qua thn Ha Vn x Tam Ngha

CNG HA X HI CH NGHA VIT NAM

c lp - T Do - Hnh phc

THUYT MINH QUY HOCH

Cng trnh: Khu ci tng m m phc v GPMB D n ng cao tc

Nng-Qung Ngi on qua Thn Ha Vn, x Tam Ngha, huyn Ni Thnh,tnh Qung Nam.

a im: Thn Ha Vn, x Tam Ngha, huyn Ni Thnh,

tnh Qung Nam.

CH U T

TRUNG TM PHT TRIN QU T HUYN NI THNHN V T VN

LIN DANH CTY CP TM &XD TRNG SA V CTY CP TXD THNG LONG

Tam K, thng 09-2013

PHN I:GII THIU CHUNGI.S cn thit lp n quy hoch:

- thc hin cng tc n b, gii phng mt bng ly t phc v cho d n ng cao tc Nng-Qung Ngi, on qua thn Ha Vn, x Tam Ngha, phi di di mt s lng ln m m. iu t ra yu cu phi c mt khu ngha a ci tng s m m ni trn;

- Qua kho st, cc c quan chc nng cho php chn khu t c din tch 1.59ha gn khu vc m Hng Long, thn Ha Vn, x TamNgha xy dng mt khu ci tng m m b nh hng bi d n ng cao tc Nng-Qung Ngi v b tr mt s m m chn mi trong thi gian sp ti.

II.Mc tiu quy hoch:

- Xy dng mt khu ngha trang mi nhm p ng nhu cu chn ct ca ngi dn trong khu vc v cc vng ln cn, vi h thng h tng k thut hon chnh, ng b, gn kt vi cc h thng h tng chung ti khu vc thc hin d n.

- Ci tng cc m b nh hng bi d n ng cao tc Nng Qung Ngi on qua thn Ha Vn, x Tam Ngha, huyn Ni Thnh, tnh Qung Nam.

- Quy hoch s dng t, v phn khu chc nng m bo c yu cu u t v ph hp vi nh hng pht trin chung ca huyn;

- To c s php l cho vic u t xy dng, qun l xy dng, bo v mi trng, m bo cnh quan kin trc ti khu vc.III.Nhim v quy hoch:

- Phn tch nh gi cc iu kin t nhin, thc trng xy dng, dn c, x hi, kin trc cnh quan, kh nng s dng qu t hin c;

- Xc nh tnh cht, chc nng v cc ch tiu kinh t - k thut ch yu v s dng t, h tng k thut ca khu vc thit k;

- Quy hoch tng mt bng s dng t; xc nh cc ch tiu cho tng l t v din tch, mt xy dng, v cc yu cu k thut khc;

- Quy hoch h thng h tng k thut:

+ Xy dng iu l qun l quy hoch xy dng;

+ D kin nhng hng mc u tin pht trin v ngun lc thc hin.

IV.Cc cn c lp h s thit k quy hoch:

- Lut xy dng c hiu lc t ngy 01/7/2004;- Lut Quy hoch s 30/2009/QH12 ngy 17/6/2009; - Ngh nh 37/2010/N-CP ngy 07/4/2010 ca Chnh ph v lp, thm nh, ph duyt v qun l quy hoch;

- QCXD 01:2008/BXD-Quy chun xy dng Vit Nam - Quy hoch xy dng;

- TCVN : 2007: Ngha trang th - Tiu chun thit k.

- Ngh nh s 35/2008/N-CP ngy 25/3/2008 ca Chnh ph v xy dng, qun l v s dng ngha trang;

- Thng t 10/2010/TT-BXD ngy 11/8/2010 ca B Xy dng quy nh h s ca tng loi quy hoch th.- Quyt nh s 21/2005/Q-BXD ngy 22/7/2005 ca B Xy dng v vic ban hnh quy nh th hin n quy hoch xy dng;

- Cng vn s 38/KTM-QHXD ngy 24/01/2013 ca Ban Qun L khu kinh t m Chu Lai v vic thng nht a im u t xy dng khu ci tng m m phc v cng tc GPMB d n ng cao tc Nng Qung Ngi on qua x Tam Ngha.

- Quyt nh s 9577/Q-UBND ngy 19/11/2010 ca UBND huyn Ni Thnh giao nhim v ch u t thc hin cng tc bi thng, h tr v ti nh c, gii phng mt bng D n ng cao tc Nng Qung Ngi on qua a bn huyn Ni Thnh.

- Quyt nh s 3963/Q-UBND ngy 28/8/2013 ca UBND huyn Ni Thnh ph duyt nhim v v d ton kho st lp quy hoch chi tit xy dng t l 1/500 Khu ci tang m m phc v GPMB d n ng cao tc Nng Qung Ngi ti thn Ha Vn, x Tam Ngha, huyn Ni Thnh;

- Cn c H s kho st a hnh cng trnh Khu ci tng m m phc v GPMB d n ng cao tc Nng Qung Ngi on qua thn Ha Vn, x Tam Ngha do Lin danh cng ty CP Thng mi & xy dng Trng Sa v Cty CP TXD Thng Long lp thng 09 nm 2013.PHN II:V TR, C IM KHU T XY DNG

I. V TR V RANH GII QUY HOCH

1. V trKhu t quy hoch thuc thn Ho Vn, x Tam Ngha, huyn Ni Thnh, tnh Qung Nam.

2. Ranh gii iu chnh quy hoch

Khu t nghin cu quy hoch Khu ci tng m m phc v GPMB d n ng cao tc Nng-Qung Ngi on qua thn Ha Vn x Tam Ngha c v tr nh sau:

- Pha Bc gip: vn keo l trm.

- Pha Nam gip: vn keo l trm.

- Pha Ty gip: vn keo l trm- Pha ng gip: bi Hng Long.

3. Quy m:

- Tng din tch quy hoch: 1.59 ha.

II. IU KIN T NHIN:1. a hnh:

Khu vc quy hoch c a hnh t nhin tng i khng bng phng, i ct, nm hon ton trn vng t i khng c dn c rt thun li cho vic xy dng khu ci tng.

2. Kh hu:Kh hu khu vc quy hoch chu nh hng chung ca kh hu vng duyn hi min trung, khu vc Qung Nam v khu vc ln cn, hnh thnh 02 ma r rt:

- Ma kh t thng 12 n thng 8 nm sau, mc nc dng sng xung thp v thng gy nn hn hn, nng nc.

- Ma ma t thng 9 n thng 11.

2.1. Nhit :

- Nhit trung bnh nm

: 25(6C

- Nhit cao nht trung bnh

: 29(0C

- Nhit thp nht trung bnh

: 22(7C

- Nhit cao nht tuyt i

: 40(9C

- Nhit thp nht tuyt i

: 10(2C

- Bin dao ng nhit gia cc ngy v cc thng lin tip trong nm khong 3-5(C.

2.2. Khng kh:- m khng kh trung bnh nm

: 82%

- m khng kh cao nht trung bnh: 90%

- m khng kh thp nht trung bnh: 75%

- m khng kh thp nht tuyt i: 10%

2.3. Ma:- Lng ma trung bnh nm

: 2.066mm

- Lng ma nm ln nht (1964) : 3.307mm

- Lng ma nm ln nht (1974): 14.000mm

- Lng ma ngy ln nht

: 332mm

- S ngy ma trung bnh nm

: 144 ngy

- S ngy ma trung bnh nhiu nht: 22 ngy (vo thng 10 hng nm)

2.4. Nng:- S gi nng trung bnh

: 2.158 gi/nm

- S gi nng trung bnh nhiu nht

: 248 gi/thng

- S gi nng trung bnh t nht

: 120 gi/thng

2.5. Bc hi mt nc

-Lng bc hi trung bnh

: 2.107mm/nm

-Lng bc hi trung bnh nhiu nht

: 241mm/nm

-Lng bc hi trung bnh thp nht

: 119mm/nm

2.6. My

-Trung bnh lu lng ton th

: 5,3

-Trung bnh lu lng h tng

: 3,3

2.7. Gi

-Hng gi thnh hnh ma h (thng 4-9)

: gi ng

-Tc gi trung bnh

: 3,3m/s; 14m/s

-Hng gi thnh hnh ma ng (thng 10-3): gi Bc, gi Ty Bc

-Tc gi mnh nht

: 20-25m/s

Trong mt s trng hp c bo, tc ln ti 40m/s

Bng 1: TC GI TRUNG BNH & GI MNH NHT TRONG NM

Thng123456789101112

Tc gi

Trung bnh4,44,24,54,54,24,04,24,65,04,3

Tc gi

Mnh nht191818182520271728402418

Hng giBBBBTNBTNTB, TBTBBB, B

Ghi ch: +Tc tnh m/s

+ Hng gi B: Bc, N: Nam, : ng, T: Ty

+ TB: Ty Bc, B: ng Bc, TN: Ty Nam.

3. c im a cht, th nhng:

Khu vc nghin cu c cu to th nhng v a cht a dng tng i phc tp, t i xen ln vi . Do vy khi u t xy dng cng trnh cn ch kho st v th nghim k.

4. Thy vn

Khu t quy hoch v xy dng ngha trang nhn dn c cao ln nn hon ton khng b nh hng ca triu cng v l lt.

III. C IM X HI

1. Dn c:y l khu vc c t dn c sinh sng, khng c cc cng trnh h tng x hi. Nm tch bit vi cc khu vc dn c xung quanh. 2. Ngh nghip:

Phn ng dn c hot ng trong khu vc nng-lm nghip.Tuy nhin qu trnh dch chuyn kinh t ko theo s dch chuyn lao ng rt nhanh t khu vc nng nghip sang khu vc cng nghip v dch v.IV. HIN TRNG S DNG T AI

1. Tng din tch nghin cu quy hoch: 15.833 m22. Hin trng s dng t ai :

Khu vc quy hoch l khu vc i trng keo trm; vi ngi m, hon ton khng c nh .

V. HIN TRNG H TNG K THUT

1. Giao thng:

Pha ng Bc c mt tuyn ng t hin trng rng khong 3m kt ni vi khu vc dn c, cch khu t quy hoch khong 90m.

Bn cnh c mt ng t ct qua khu quy hoch kt ni vi bi Hng Long pha Ty Bc.

2. in:

Hin trng khu vc ln cn quy hoch c li in phc v sinh hot, thun li cho vic ko in phc v vn hnh s dng ngha trang.

3. Cp nc:

Hin trng ngun nc sinh hot ch yu s dng ngun nc ngm, t h thng ging khi, o su t 5m n 20m; ging ng t 10m n 30m.4. Thot nc:

Hin ti khu vc quy hoch cha c h thng thot nc, thot nc ch yu l thot nc mt, sau ra khe v mng nh.

VI. S CN THIT U T XY DNG :

Do h tng k thut, h tng kinh t x hi cha c quy hoch, xy dng i ph vi tc ng ca thin tai, bo l, bin i kh hu, to iu kin trao i kinh t - vn ha gia cc vng. Trc tnh hnh , UBND huyn Ni Thnh c ch trng thng nht u t nhiu d n xy dng h tng Khu dn c, cng trnh h tng k thut u mi, h tng x hi phc v di di, sp xp dn c. Cng vi vic d n ng cao tc Nng Qung Ngi chy ngang qua a bn huyn vic quy hoch, di di cng tr nn cp bch hn bao gi ht.

thc hin gii phng mt bng cho cc d n xy dng ni trn, nhim v c t ra l phi nhanh chng u t, xy dng khu ngha trang phc v di di ci tng m m, v vy vic lp quy hoch u t xy dng Khu ci tng m m phc v cng tc GPMB d n ng cao tc Nng Qung Ngi nhm di di v ci tng m m phc v gii phng mt bng, ti nh c cho nhn dn ti thn Ha Vn, x Tam Ngha thuc huyn Ni Thnh l yu cu cn thit v rt cp bch. PHN III:QUY HOCH CHI TIT XY DNG

I. QUY HOCH S DNG T AI

1. Ni dung quy hoch

- Quy hoch mi ton b khu t thnh khu dnh cho chn ct ci tng v chn ct mi.

2. Quy hoch chi tit s dng t ai:

Trn c s s liu thng k s m m di di phc v xy dng d n ng cao tc Nng Qung Ngi khong hn 700 m.

T c cc phng n b tr ch tiu s dng t hp l, bn cnh cn b tr din tch t chn mi v cy xanh, k thut.

Khu t c quy hoch nh sau:

BNG THNG K M

LOI MTN KHUDIN TCHKCH THC MS M

(m2)(ci)

M CI TNGCT1390,772.2m X 1.2m65

CT2372,332.2m X 1.2m60

CT3363,092.2m X 1.2m60

CT4384,232.2m X 1.2m

CT5367,592.2m X 1.2m60

CT6382,472.2m X 1.2m65

CT7383,482.2m X 1.2m65

CT8364,452.2m X 1.2m60

CT9356,42.2m X 1.2m60

CT10375,082.2m X 1.2m65

CT11359,82.2m X 1.2m60

CT12371,92.2m X 1.2m65

TNG4471,59750

M CHN MICM1557,553m x 1.4m68

CM2541,973m x 1.4m68

CM3545,713m x 1.4m68

CM4561,93m x 1.4m72

CM5612,043m x 1.4m68

CM6352,983m x 1.4m40

CM7352,053m x 1.4m40

CM8615,933m x 1.4m72

TNG4140,13496

TNG S M1246

BNG CN BNG S DNG T

LOI TDIN TCHT L %

(m2)

t Ci Tng4471,5928,41

t Chn Mi4140,1326,30

t Giao Thng461429,31

t K Thut1094,86,96

Bi Xe219,61,40

t Chn, t Rc219,61,40

t Cy Xanh, Mt Nc981,28

Tng15741100

II. QUY HOCH XY DNG H THNG H TNG K THUT

1. San nn:

Khu vc quy hoch c dc a hnh tng i ln (khong 10%). T chc san nn bm st dc hin trng v hn ch khi lng o bng kiu to taluy git cp vi cc cu thang b kt ni ni b.

dc mi mt phng 4% vi cc ct san nn th hin trn bn v.

Ti ranh gii pha Ty khu t c chnh lch ct ln nht l -2.68 m. To mi taluy o 1:1 ng thi to mt mng thot nc c b rng khong 2m dc theo taluy o tp trung nc v t thng lu (trnh gy nh hng ti khu ngha a).

Khi lng cng tc t c tnh theo li vung, kch thc li chun 10mx10m: w = f.htb (m).

Trong : f : din tch li tnh ton (m).

Htb : chiu cao trung bnh p nn (m).

- Khu vc san nn c tng din tch l 1.59ha.

- Tng khi lng t tnh ton o t: 8087.11m.

- Tng khi lng t tnh ton p t: 2725.08m.Khi ton kinh ph san nn:

STTHng mc cng tcKhi lng(m3)n gi()Thnh tin()

1p t2.725,0820.00054.501.600

2o t8.087,1117.000137.480.870

Tng cng:191.982.470

2. Giao Thng:Cc tiu chun, quy chun p dng:

- Tiu chun thit k ng t TCVN 4054-05;

- Tiu chun tnh ton thy vn 22 TCN 220-95;

- Quy chun xy dng Vit Nam 01-2008;

- ng th - Tiu chun thit k TCXDVN 104-07;

Quy hoch mng li giao thng theo kiu c i xng qua cc trc ng chnh mang tnh cht lin kt vi khu vc xung quanh.

Vi cc mt ct ng ni b c b rng lng ng t 2m 3m; mt ct ng i ngoi t 3m 5m. C th nh sau:- i ngoi: Nn tuyn ng t hin trng chy ct ngang khu t thnh tuyn ng mi chy dc ranh pha ng Bc vi chc nng i ngoi ni Bi Hng Long v cc khu vc ln cn (mt ct 1-1), bn cnh nh hng m tuyn ng mi kt ni khu quy hoch v pha ng (mt ct 2-2)

- i ni: To mng li ng ni b theo kiu c i xng vi cc mt ct 3-3, 4-4+ Trc giao thng chnh

: 12.5m v 12.0m;+ Lng ng gia cc l m : 2.0m v 3.0m;

+ Khong cch li i gia hai hng m lin tip: 1.2m;

+ Khong cch gia 2 m lin tip cng hng: 0,6m;

- Kt cu o ng chnh s dng btng xi mng vi dy 0,2m;

- Cc li i s dng kt cu ng cp phi dm.

BNG THNG K GIAO THNG

MTCCHVALNGVACCHRNG CHIUDIN

TTCTLYHNGHLYNGDITCH (m2)

11-11,5353012,5(ngoi ranh)(ngoi ranh)

22-21,53331,512201,92422,8

33-31,531,56198,681192,08

44-41214249,78999,12

55-512m + 2m16159,25955,5

TNG4614

BNG KHI TON KINH PH GIAO THNG

SMtLng ChiuDinnThnh

TTCtngDiTch (m2)Gi (/m2)Tin

12-23201,9605,7 272.000,00 164.750.400,00

23-33198,68596,04 272.000,00 162.122.880,00

34-42249,78499,56 272.000,00 135.880.320,00

45-54159,25637 272.000,00 173.264.000,00

Tng cng: 636.017.600,00

3.Thot nc ma:

Da trn nh hng mi dc t giai on san nn, nh hng thot nc v mng d kin dc ranh pha Bc v mng d kin dc ranh pha ng; cc mng ny s nc v mng hin hu pha ng Bc.4.Bi u xe:

- Tip gip vi ng giao thng u xe tang ti ni tip cn vi khu ngha a;

- Khu vc quy hoch c b tr li vo kt hp vi bi u xe, vi bi u xe c quy hoch: 219.6 (m2) thun tin cho vic thm ving cng nh chn ct.

5. Khu t rc:

- Dng chn hoc t rc, ph thi, cc vt dng mang theo cho ngi cht theo phong tc tp qun ca ngi dn a phng. Ngoi ra cn cha cc vt liu, rc do ngi dn xy cc phn m;

- c quy hoch v tr thp nht v thun tin cho vic t rc, ph hp vi tiu chun;

- Din tch khu chn rc: 219.6 (m2).

III. PHNG N GII PHNG MT BNG V R PH BOM MN:

1. Gii phng mt bng:

Khu vc d n nm trong khu vc i trng keo l trm v mt s m m ri rc cn gii phng mt bng trc khi u t xy dng.

Chi ph gii phng mt bng c tm tnh tng t cc khu ln cn ang trin khai, din tch cn gii phng mt bng c tch khong 1,59 ha:

2. R ph bom mn:

Phm vi r ph bom mn trong phm vi xy dng Khu Ngha trang nhm loi b cc loi vt liu n cn st li trong chin tranh, bo m an ton cho qu trnh thi cng cng nh s dng sau ny.

PHN IV: NH GI CC TC NG MI TRNG

I. Ngun, i tng v thi gian tc ng:

Khi trin khai thc hin d n s pht sinh nhng vn mi trng, nht l khi d n i vo hot ng. Vi khu ci tng m m s pht sinh nhng vn mi trng chnh c nu trong bng sau:Bng cc vn mi trng chnh c lin quan n hot ng ca khu ci tng:

NgunCc tc nhn nhimCc vn mi trngi tng b tc ng

Giai on thi cng

1-Ci to v san lp mt bng.- Vt liu san lp;

- Hot ng ca cc phng tin thi cng c gii.- nhim nc, khng kh;

- nhim n;

- Thay i cnh quan.- Mi trng khu vc v ngi dn sng xung quanh.

2-Xy dng v cc cng trnh ph- Bi,n;

- Du m thi, cht thi xy dng, nc ra vt liu, bo dng b tng..

- Hot ng ca cc phng tin thi cng c gii;

- Nc thi sinh hot ca cng nhn.- nhim t, nc, khng kh.

- nhim n.

- Mi trng khu vc v ngi dn sng xung quanh.

3-Thay i phng thc lao ng ca ngi dn - Gim t rng sn xut.

- S dng tin bi hon khng ng mc ch, cuc sng mt n nh.- Ngi dn c t nm trong khu quy hoch.

Giai on khu ci tng m m i vo hot ng

1-Nc thi - Cht l lng.

- BOD, N, P.- Gy nhim nc mt;

- nh hng sc kho cng ng.Mi trng nc v ngi dn sng xung quanh.

2-Rc thi sinh hot, rc pht sinh (giy tin vng bc)- Rc ca khch vng lai.

- Rc giy,...

- Gy nhim cnh quan khu vc.

Khu vc ngha trang.

3-Cc s c mi trng.- R r cht phn hy t cc khu m a tng.

- Gy nhim t, nc;

- nh hng n sinh vt trong vng;

- nh hng n mi trng xung quanh.- Mi trng t, nc, xung quanh;

- H sinh thi ln cn;

- Ngi dn sng gn khu vc d n.

4-Kh thi pht sinh t phng tin c gii vo ngha trang, t vng m, vt dng ca ngi chtCO,CO2, SO2, NO2- Gy nhim khng kh.

- Mi trng khng kh xung quanh.

II. nh gi tc ng n mi trng xung quanh v sc khe cng ng:

1. Tc ng n mi trng khng kh:

Giai on thi cng:

- Bi sinh ra trong giai on san lp mt bng (trong ma nng), khi bi, ting n t cc phng tin c gii c th nh hng n cng nhn lao ng, ngi dn xung quanh v cc h thng canh tc ln cn;

- Tuy nhin, phm vi nh hng nh v thi gian ngn nn khi thi cng cn trang b nhng thit b bo h lao ng cho cng nhn, cc phng tin phi c che chn, ti nc gim bi...

Giai on vn hnh:

Vn nhim t qu trnh vn hnh ch yu l khi bi sinh ra do cc loi phng tin giao thng vo khu vc ngha trang, kh thi do t vng m v dng c nhn ca ngi cht, cc cht mi sinh ra t qu trnh phn r vt cht hu c;

- Tc ng ca cc cht nhim:

+ Tc hi ca bi: Bi bay ra nhiu tc hi khc nhau i vi sc khe con ngi: bi c th gy tn thng i vi mt, da nhng ch yu vn l s thm nhp ca bi vo phi gy nn phn ng x ha phi v cc bnh v ng h hp;

+ Kh SOx , NOx l cc kh axit, khi tip xc vi nim mc m t s to thnh kh axit SOx, NOx vo c th qua ng h hp hoc ha tan vo nc bt ri vo ng tiu ha sau phn tn vo mu. SOx, NOx khi kt hp vi bi to thnh cc ht bi axit l lng. Nu kch thc bi ny nh hn 2-3m s vo ti ph nang, b i thc bo ph hy hoc a n h thng bch tuyt. SOx c th nhim c qua da gy ra s chuyn ha toan tnh lm gim d tr kim trong mu, o thi amoniac ra nc tiu v kim ra nc bt;

+ Tt c loi Nit oxit (NOx) u c tc ng trong mi trng khng kh ging NO2. NO2 c xem l hp cht ch yu trong chui phn ng cc tm vi hydrocacbon trong kh thi ca my mc thit b to mui khi c tnh xy ha mnh. NO2 c hnh thnh nh sn phm cui cng ca qu trnh t nhin liu trong cc ng c t trong. Trong cc loi NOx th NO2, NO v N2O5 l ng quan tm hn c;

+ c tnh chung ca SOx th hin s ri lon chuyn ha protein v ng, thiu vitamin B v C, c ch ezym oxydaza. S hp th lng ln SOx c kh nng gy bnh cho h to huyt v tao ra methemoglobin tng cng qu trnh oxy ha Fe+2 thnh Fe+3;

+ i vi thc vt, cc kh SOx, NOx khi b oxy ha trong khng kh v kt hp vi ma to thnh ma axit gy nh hng ti s pht trin ca cy trng v thm thc vt. Khi nng SOx trong khng kh khong 1-2ppm c th gy tn thng i vi l cy sau vi gi tip xc. i vi cc loi thc vt nhy cm gii hn gy c kinh nin khong 0,15-0,3 ppm. Nhy cm nht i vi SO2 l ng vt bc thp nh ru, a y. i vi vt liu, s c mt ca SOx, NOx trong khng kh nng m lom tng cng qu trnh n mn kim loi, ph hy ph tng v cc cng trnh xy dng;

- Kh CO v CO2:

+ CO d gy c do kt hp kh bn vng vi hemoglobin thnh cacbonxyhemoglobin dn n gim kh nng vn chuyn oxy ca mu n cc t chc t bo.

+ CO2 gy ri lon h hp phi v t bo do chim mt ch ca xy. Mt s c trng gy ng c ca CO2 nh sau:

c trng gy ng c ca Co2

Nng CO2Biu hin c tnh

50.000 ppmKh th, nhc u

100.000 ppmNgt, ngt th

(ppm: part per milion: n v o lng din t nng theo khi lng hay th tch ca mt cht trong mt hn hp c cha cht , tnh theo phn triu)

- n cao hn tiu chun cho php (> 85 dBA) s gy nh hng n sc khe nh gy mt ng, mt mi, tm l kh chu, mt tp trung khi lm vic d gy tai nn lao ng, nu cao qu s gy bnh ic ngh nghip.

2. Tc ng n mi trng nc:

y l ngun nc c mc nh hng trc tip v ln nht n cht lng ngun nc di t, cha nhiu cc cht c hi nh: du m, Nit, Photpho, vi khun,... gin tip nh hng n ngun nc sinh hot nhn dn trong khu vc;

Nc ma chy trn: Vo ma ma, nc ma chy trn trn mt t khu vc khu ci tng m m s cun theo cc cht cn b, cc cht hu c v t ct. So vi nc thi, nc ma kh sch nn n s pha long cc cht nhim. Tc ng ln nht do nc ma chy trn gy ra l nng cht rn l lng cao lm c ngun nc nh hng ti mi trng sng ca thy sinh vt. Lng nc ny hu nh khng nh hng n mi trng xung quanh;

- Nng cc cht nhim trong nc ma chy trn qua khu vc ngha trang trin khai c tnh:

+ pH

:

6.5-8

+ Tng Nit :

0.5-1.5 mg/l

+ Photpho

:

0.004-0.03 mg/l

+ Nhu cu oxy ha hc(COD):10-20 mg/l

+ Tng cht rn l lng (TSS):10-20 mg/l

+ TSS

:

100-200 mg/l

+ Trng giun sn:

103 (MPN/100 ml)

- Tc ng ca cc cht nhim trong mi trng nc:

- Qu trnh phn hy sinh hc cc cht hu c lm gim nng oxy ha tan trong nc. Khi nng oxy trong nc gim xung qu thp th cc loi thy sinh vt s gim. Ti cc khu vc c nng xy ha tan xung qu thp do cc cht hu c phn hy mnh th s gy ra qu trnh phn hy k kh lp bn y, pht sinh mi hi thi, y l mi trng khng thun li cho cc sinh vt sng di nc.

- Cc tc nhn gy nhim mi trng di nc:

+ pH: l yu t tc ng rt mnh n vi sinh vt thy sinh. Khi pH ca vc nc thay i, cn bng sinh thi ca vc nc s b tc ng, nu thay i ln s ph v cn bng sinh thi, nhiu loi thy sinh vt s b tiu dit;

+ DO (dissolved oxygen): Mt trong nhng ch tiu quan trng nht ca nc l hm lng oxy ha tan, v oxy khng th thiu c i vi tt c cc vi sinh vt sng trn cn cng nh di nc. Oxy duy tr qu trnh trao i cht, sinh ra nng lng cho s sinh trng. Oxy l cht kh kh ha tan trong nc, khng tc dng vi nc v mt ha hc. tan ca n ph thuc rt ln vo cc yu t nh p sut, nhit v cc c tnh ca ngun nc thi. Nng bo ha ca oxy trong nc nhit cho trc c th tnh theo lut Henry. Nng ny nm trong khong 815 mg/l nhit bnh thng. Khi thi cc cht thi s dng oxy vo cc ngun nc, qu trnh oxy ha chng s lm gim nng oxy ha tan trong cc ngun nc ny, thm ch e da s sng ca cc loi c cng nh sinh vt sng trong nc;

+ Nhu cu oxy ha BOD (Biochemical oxygen Demand): Nhu cu oxy ha l ch tiu thng dng nht xc nh mc nhim ca nc thi ni chung v nc thi khu ci tng m m ni ring. BOD c nh ngha l lng oxy sinh vt s dng trong qu trnh oxy ha cc cht hu c. Phng trnh tng qut ca phn ng ny nh sau: Cht hu c + O2 vi khun CO2 + H20 + T bo mi + Sn phm c nh;

- Trong mi trng nc, khi qu trnh oxy ha sinh hc xy ra th cc sinh vt s dng oxy ha tan. V vy xc nh tng lng oxy ha tan cn thit cho qu trnh phn hy sinh hc l cng vic quan trng nh gi nh hng ca mt dng thi i vi ngun nc. BOD biu th lng cc cht hu c trong nc c th b phn hy bng cc vi sinh vt. Nghin cu ng hc ca phn ng BOD chng minh rng, hu ht chng l phn ng bc mt. iu c ngha l tc phn ng t l vi lng cht hu c c trong nc. Nu gi thit Lt l hm lng BOD ng vi thi gian t v k l hng s tc phn ng, khi c th vit:

= -ktLng BOD cn li ti thi im t s bng Lt= L0e-ktCn lng BOD b vi khun s dng n thi im t bt k s bng:

BODt=Lo (1-e-kt)

- Trn thc t ngoi qu trnh oxy ha sinh hc thnh phn Cacbon ca cht thi cn c kh nng tng thm nhu cu oxy sinh ha do qu trnh oxy ha cc hp cht nit. Cc ch tiu ny cho bit s lng oxy tiu th bi cc vi sinh vt him kh tn ti trong nc thi. Theo quy c vic o ch tiu ny c thc hin iu kin 200C trong 5 ngy, v vy n c gi l BOD5 thay cho tng nhu cu oxy sinh ha theo l thuyt BOD4. Thng thng cc cht hu c cacbon b oxy ha nhanh hn so vi cc hp cht nit, nh vy gi tr BOD5 ch yu biu th lng cc hp cht cacbon d phn hy.

- Nhu cu oxy ha hc (COD): COD biu th lng oxy tng ng ca cc thnh phn hu c c trong nc thi c th b oxy ha bi cc cht oxy ha hc mnh. Ty thuc vo iu kin c th ca ngun thi, thng thng COD lin quan n BOD, cacbon hu c v cc cht hu c trong nc thi. Hin nay c 2 phng php xc nh COD thng dng l dng KMnO4 lm cht oxy ha cho gi tr CODMn v cht oxy ha K2Cr2O7 cho gi tr CODCr.

+ Khi COD v BOD trong nc ln, DO gim s nh hng n qu trnh h hp ca sinh vt thy sinh;

- xit nit v Amon: Nit tn ti nhng dng khc nhau nh nitrat, nitrit, amon v cc dng hu c. Chng c vai tr quan trng trong h sinh thi nc. Nit l mt loi kh cha nhiu trong kh quyn v ti cn thit cho i sng sinh vt v l mt thnh phn ca protein. Nhng mt lng ln nitrat s gy nn tc ng dy chuyn, c bit trong cc h sinh thi nc. Trc ht, n tng cng s sinh trng, pht trin ca thc vt v tng sc sn xut s cp. Sau khi cht, chng lm tng lng cht hu c v cc qun th vi sinh vt phong ph pht trin trn cc c cht hu c ny trong qu trnh h hp, hu nh tt c oxy ha tan c s dng. S thiu oxy gy nn qu trnh ln men, thi ra, lm cht c v nhim trm trng;

- Nitrat v Nitrit (NO3- ; NO2-) thng cha t b mt, song nc ngm li c th cao. Nng cao ca Nitrat v Nitrit trong nc ung s gy ra bnh tt, c bit tr em gi l bnh xanh bng. Hm lng Nitrat khng c ln hn 10 mg/l trong nc ung;

- Nitrit cng c tc dng gy bnh xanh da v n to thnh axit nit trong nc tc ng vi amin hnh thnh nitrosamin, mt s trong s nhng cht ny l cc tc nhn gy bnh ung th. Do him ha ca Nitrat v Nitrit i vi sc khe con ngi, cho nn chng c coi l nhng ch tiu quan trng nh gi cht lng nc;

- Amon (NH4+ trong nc to thnh bi qu trnh kh amin (diamin) ca nhng hp cht hu c. NH4+ trong nc sau mt thi gian s b oxy ha tr thnh dng Nitrat v Nitrit;

- Lng nit v photpho trong nc qu ln s gy hin tng ph dng, bng n ca to ngun nc tip nhn, bi theo nghin cu ca cc nh khoa hc cho bit nit v photpho ng vai tr quan trng trong qu trnh pht trin ca cc loi to c th hin qua qu trnh quang hp di y:

106 CO2 + 16 NO3- + 122 H2O + 18 H+ C106H263O110N16P + 138 O2- Cng vi cc yu t nit v photpho th cc loi to s pht trin nhanh trong ma cn khi lu lng nc pha long gim xung v kh nng t lm sch ca nc km i.

3. Tc ng n mi trng t:

Qu trnh vn hnh ngha trang s b sung vo t mt lng kim loi nng kh ln nu tnh tng cng tp trung. Nu xt v din phn b th hm lng kim lai ny khng ln. Tuy nhin theo thi gian, cn phi quan trc theo di qu trnh khuch tn cc cht ny trong t.

4. Cht thi rn:

a. Giai on thi cng:

t t vic thi cng cc hng mc giao thng. Tuy nhin, cc loi vt liu ny u c ti s dng hoc c chuyn v bi thi tp trung ca khu vc.

b. Giai on vn hnh:

Trong khi vn hnh s c lng rc t cc loi giy tin vng bc thi ra ng khong 3 kg/ca. Rc t cc loi giy tin vng bc s t phn hy. Tuy nhin, to v m quan ca ngha trang cn t chc thu gom v x l. i vi rc sinh hot ca khch vng lai cn phi c thu gom v c bin php x l thch hp. Tuy nhin, cng cn ch n vn rc thi ba bi ca dn c xung quanh do cc dch v ko theo khi ngha trang i vo hot ng.

5. Tc ng n mi trng sinh thi

- Din tch d n l khng ln i vi din tch vng sinh thi trong khu vc nn khi san lp s khng nh hng ln;

iu kin vn ha:

- Nng cao nhn thc ca ngi dn v cch an tng ngi cht, m bo hp v sinh mi trng v chn ct trong ngha trang s khng b ngp nc nh trc khi c ngha trang vo ma l;

- Tuyn truyn gio dc dn chng u im v li ch ca phng php ha tng v phong cch vn minh;

- Ko theo l cc t nn x hi km nh li dng khu vc ngha trang lm ni tim chch ma ty, c bc;

iu kin m thut:

- To ni khang trang, tn nghim i vi ngi khut;

- Khng cn cnh mai tng xen ln trong cc khu dn c.

6. Tc ng n ti nguyn v mi trng do con ngi s dng:

Cp thot nc:

- H thng cp thot nc ca d n ch l cc b vi lu lng nh. Nc thi c qua x l s b v thi tr vo h thng knh rch gn nht;

- Tuy nhin, ngi dn trong khu vc quy hoch u khng s dng ngun nc t cc knh rch ny nn khng c nhiu kh nng gy nhim ngun nc.

Giao thng vn ti:

- ng i vo khu d n l ng b tng. V vy vic m rng tuyn ng ny l iu cn lm trc tin.

Nng nghip:

- Din tch t rng sn xut gim.

7. nh gi ri ro:

- Ri ro l nhng s kin xy ra ngoi mun, gy tn tht v mi trng, lm thit hi v kinh t x hi v c th gy thng vong;

- Ri ro c sp xp theo th t nghim trng gim dn nh sau:

+Cc ri ro chy n lin quan n bn cha nguyn liu:

+ Ri ro n s nhim ngun nc mt khi h thng x l nc qu ti hoc hot ng thiu hiu qu.

V lu di:

+ Ri ro lin quan n nhim kim loi nng trong nc di t;

- Tm li, nhng tc ng ca d n n cc yu t mi trng l khng ln. Chng ta hon ton c th gim thiu c nhng tc ng tch cc ny bng nhng bin php c c s khoa hc v thc tin.

III. Bin php gim thiu tc ng xu, phng nga v ng ph s c mi trng.

1. Cc bin php gim thiu tc ng n mi trng

a. Gim thiu nhim do kh thi.

- u tin b sung trng cc loi cy xanh c tn rng, mi thm, ht c cc kh c nh: hoa long no, khuynh dip, hoa sa, bng, phng, to iu kin vi kh hu, ci thin mi trng dc cc tuyn ng ni b, vi cch thc trng xen k 1,5-2m/1 cy;

- Thng xuyn kim tra, thay th nhng np cng hng, nh k tin hnh no vt cng rnh thot nc.

b. Gim thiu nhim do nc thi.

Nc r t ngha trang:

- i vi cc l chn mi: xy dng h thng mng thot nc dc theo cc tuyn ng ni b ca cc l ch m chn mi trong khu ngha trang nh sau:

+ y mng c xy bng b tng hoc gch t, trt xi mng, rng 40cm;

- Np mng l np b tng c th tho di.

+ Nc r theo h thng mng dn vo h thng x l x l trc khi chia ra mi trng (h thng c nu c th phn trnh by pha sau);

- i vi cc l t dnh cho chn mi trong tng lai: i vi mi l khi xy dng phi thit k chn lp t st hoc 1 lp vi a k thut xy khong 3m tnh t mt t (trng gia). Sau thit k lp t cc ng dn nc r ra h thng x l x l;

- Do tnh cht ca nc r ra t khu m chn mi c thnh phn nhim chnh l du m, photpho, vi khun nn sau khi c dn ra qua h thng mng dn th nc r c th c x l bng phng php sau:

+ S dng vi ti: Khi cho vi ti Ca(OH)2 th n s phn ng vi bicacbonat (HCO3) t nhin c mt trong nc to thnh kt ta CaCO3. Khi thm vi vo nc PH>10 ion canxi s phn ng vi ion photphat to thnh kt ta hydroxylpatit Ca10(PO4)6(OH)2.

+ + = Ca10(PO4)6(OH)6

+ Nguyn l trn c th p dng cho qu trnh 1 giai on hay qu trnh 2 giai on;

+ Trong h thng x l 2 giai on vi c cho vo nc khi lng ln 1 nng PH ln 11. Lc ny photpho dng tan trong nc s b kt ta di dng hydroxylaptit, caxicacbonat cng kt ta v ng vai tr nh cht keo t gip loi b c cht rn l lng. Lng tha canxi tan trong nc thi c loi b di dng CaCO3 trong b lng 2 do c sc kh CO2 ln 1 lm gim PH n 10;

Ca(OH)2 + CO2 = CaCO3+ H2O

- Qua cc phng php x l trn cho thy:

+ Phng php x dng mui kim loi: u im ca phng php l to ra lng bn thi t, nhng nhc im ca phng php ny l gi thnh x l kh cao;

+ Phng php x l mui canxi (vi ti): Nhc im ca phng php l to ra lng bn thi ln hn nhng u im l gi thnh x l thp;

+ Trong hai trng hp h thng 1 giai on v 2 giai on th trng hp h thng 1 giai on n gin, ph hp vi tnh cht x l nc r t ngha trang hn;

- T nhng l do trn, i vi vic x l nc r t ngha trang s dng phng php x l mui canxi (vi ti) trong trng hp 1 giai on l ph hp;

- Do tnh cht ca nc r khng nh lng mt cch c th c, mt khc ngha trang l l thin nn lng nc r ph thuc kh ln vo lng ma nn tnh ton kch thc cc b x l chng ti cn c vo nhng yu t sau:

- i vi nhng l quy hoch chn mi (c chn lp t st hoc vi a k thut):

+ Lng ma cao nht trong nm (theo ma): theo s liu ca kh tng thy vn th lng ma TB nm ca khu vc c thng k trong 6 nm k t nm 2001 2006 c khong 2491 mm. Lng ma vo ma ma bng 80% lng ma trong nm. Nh vy lng ma TB vo ma ma l khong 1992,8 mm;

+ Lng bc hi:10% lng ma thc t cn li l khong 199,28 mm;

+ Kh nng ngm v chy trn ca nc ma: do tnh cht t b mt ca khu vc l t st i, a cht ca khu vc nm th ph sa Holocence, nn kh nng thm nc l kh cao (c khong 30%) nn c lng kh nng thm nc ma ca khu vc cn khong 60%. Nh vy lng nc ma thc t ngm xung t c khong:1992,8 mm x 60% = 1195,68 mm;

+ c lng lng nc r ra t khu ci tng m m: bng 0,1 ln lng nc ma;

+ Nh vy lng nc thc t t khu m chn mi vo thi im cao nht trong nm (ma ma) c khong:1195,68 mm x 1,1 = 1315,24 mm;

+ Vi ton b din tch l chn mi d kin quy hoch: 4140.13(m2) th lng nc r t cc l quy hoch chn mig trong ma ma c khong 5445.26(m3)

- p dng phng php x l la chn, tnh ton trong trng hp lng nc r cao cp 1.5 ln v vi tnh cht x l ca cc cng on, xy dng, lp t h thng x l nc thi vi cc hng mc chnh nh sau:

+ B u tin ( tip nhn nc r v nc): dung tch khong 45(m3), kch thc h2,5m x r3m x d6m. cao thnh b 0,5m tnh t mc nc;

+ B th 2 (tip nhn nc t b th nht v sc kh CO2 ti cacbonat ha): dung tch 22,5(m3) kch thc h2,5m x r3m x d3m. cao thnh b 0,5m tnh t mc nc;

+ B th 3 (lc v kh trng): c kch thc ging b th hai;

- i vi cht thi rn sinh hot: c thu gom sau chuyn ch i bi rc ca x Tam Xun x l;

- i vi cht thi rn pht sinh t hot ng ca ngha trang: t theo kiu truyn thng.

2. Cc bin php p dng:

- UBND x Tam Ngha s c cc thng bo, ni quy v v sinh mi trng trong khu ci tng m m thn Ha Vn, x Tam Ngha;

- Gio dc thc v sinh mi trng cho ngi dn;

- Pht ng phong tro trng cy xanh, v sinh khu vc ngha trang;

- Cng vi cc b phn khc trong khu vc, tham gia thc hin k hoch hn ch ti a cc cht nhim, bo v mi trng theo cc quy nh v hng dn chung ca cc c quan qun l;

- Tch cc tham gia cc phong tro nh: Ngy mi trng th gii, tun l v sinh v an ton lao ng.

IV. Cc cng trnh x l mi trng, chng trnh qun l quan trc v gim st mi trng:

1. Cc cng trnh x l mi trng:

Bng: Cc cng trnh x l mi trng.

STTCc tc nhn cn x lCng trnh x l

Cht thi rn

1Cc cht thi xy dng trong qu trnh xy dng cc hng mc cng trnh c u tin ti s dng, phn cn li c v bi rc ca khu vc.

2Rc thi sinh hot, rc t giy tin vng bcLp t mt h thng cc thng rc dc theo cc tuyn ng, v c cng nhn v sinh thu gom rc hng ngy. C thit k h cha rc c np y tp trung rc v y mi ngy.

3Cc cht r r t m a tngVt liu xy dng phi tun th ng theo thit k, theo di nh k s pht tn cc cht nhim t cc ngi m pht hin r r v x l kp thi (nu c).

Cht thi lng

4Nc chy trn t qu trnh san lp mt bngSan lp theo hng t ni xa n ni gn knh thot nc, c lp t cng thot nc.

Cht thi ra mi trng khng kh

5Bi t qu trnh san lpTi nc khi tri nng gt v c gi. Rt ngn thi gian san lp.

6Ting n, cht thi t cc my thi cngS dng cc thit b gim n, cht thi nhim, tit km nhin liu,

Cc tc ng vn ha, x hi

7Cc thnh phn xu t tp gy mt trt t khu vc C hng ro bo v xung quanh ngha trang.

2. Chng trnh qun l v gim st mi trng:

a. Chng trnh qun l mi trng:

Chng trnh qun l mi trng c thc hin theo cc quy nh hin hnh ca nh nc v bo v mi trng.

- Cht lng khng kh:

+ TCVN 5937 2005: Tiu chun cht lng khng kh xung quanh;

+ TCVN 5939 2005: Tiu chun kh thi cng nghip i vi bi v cht thi v c;

- Cht lng nc:

+ TCVN 5942 2005: Tiu chun cht lng nc mt;

+ TCVN 6772 2005: Nc thi sinh hot;

+ TCVN 5944 2005: Tiu chun cht lng nc ngm;

- Cht lng t:

+ TCVN 7209 2002: Gii hn ti a cho php ca kim loi nng trong t.

b. Chng trnh quan trc, gim st mi trng:

Chng trnh quan trc c thit k da trn c s nhng tc ng ca d n n mi trng nh phn tch cc chng trc. Vi mi loi yu t c thi gian, tn sut v chu k quan trc khc nhau. Trong qu trnh vn hnh cn gim st cc ch tiu nc thi sinh hot, cht thi sinh hot, kh thi t l ha thiu, hm lng kim loi nng trong t c th nh sau:

Quan trc mi trng khng kh:

- Ch tiu quan trc: CO, NOx, SO2, bi l lng, ch, Arsen, Cadimi, Thy ngn v vi sinh;

- Tn sut: 04 ln/nm;

- S lng: 08 mu/nm;

- Thi im ly mu vo khong thng 01, 04, 07, 10;

- Khong cch quan trc: cch l100m, 200m theo hng gi ch o.

Quan trc mi trng nc mt:

- Quan trc mi trng nc mt, y l i tng c nguy c b nhim cao nht;

- Trong giai on thi cng san lp cn thc hin theo cch xut phn trn v c s gim st cht ch ca ch u t;

- Trong giai on vn hnh cn c s gim st cht lng nc thi t h thng cng d n ra knh rch. V tr nhy cm cao nht l khu vc d n tip gip vi cc knh rch xung quanh. T kt hp vi cc c quan chuyn ngnh x l kp thi nu nc thi ra khng t yu cu. Cn ly 1 mu nc thi ca dng chy mt v mt mu nc thi ca h thng chung;

- Cc ch tiu quan trc: mu, mi, BOD5, COD, TSS, As, Cd, Pb, Cr, Cu, Zn, Mn, Hg, Ptng, NH3, NO2, Coliform;

- Tn sut: 04 ln/nm;

- S mu: 08 mu/nm;

- Thi im quan trc: vo thng 01, 4, 7, 10;

Quan trc mi trng nc ngm:

- Cn quan trc cc ch tiu lin quan n TCVN 5944 2005;

- Cc ch tiu quan trc: pH, NO3-, SO42 -, As, Cd, Fe, Coliform;

- Tn sut: 05 nm/ln;

- S lng mu: 03 mu/ln;

- Thi im ly mu sau 5 nm k t khi ngha trang hot ng.

Quan trc mi trng t:

- Mi trng t c th b nh hng t cc kim loi nng sinh ra t thi th, cht thi rn t l thiu v cht thi sinh hot;

- Cc ch tiu quan trc: As, Cd, Ni, Hg, Pb, Mn, Cr, Ptng;

- Tn sut: 01 ln/nm.

- S lng: 03 mu/nm;

- Thi im ly mu: sau ma l (thng 01);

- Cn tin hnh ly mu su 1,5m cch mt t ca nn d n.

Bng: Chng trnh quan trc mi trng.

TTi tngCh tiuS mun gi/muThnh tinGi/nm

1Khng khCO, NOx, SO2, bi l lng, ch, Arsen, Cadimi, Thy ngn v vi sinh.

081.60012.80012.800

2Nc mtmu, mi, BOD5, COD, TSS, As, Cd, Pb, Cr, Cu, Zn, Mn, Hg, Ptng, NH3, NO2, Coliform.089907.9207.920

3Nc ngmpH, NO3-, SO42 -, As, Cd, Fe, Coliform035001.5003.000

4tAs, Cd, Ni, Hg, Pb, Mn, Cr, Ptng035501.6501.650

5Chi ph bo tr h thng x l nc thi2.000

Tng24.670

3. D tr kinh ph cho gim st, quan trc mi trng:

- Nh vy, kinh ph cho vic ly v phn tch mu trung bnh trong 1 nm l 24.670.000 (hai mi bn triu su trm by mi ngn ng). Cc loi chi ph trng cy xanh v bo dng cy nm trong cc hng mc khc ca cng trnh;

- Cc hng mc xy cng thot nc, b t hoi, b lc s cp c xy dng chung vi cc hng mc xy dng c s h tng ca cng trnh;

- Cng vic gim st v quan trc mi trng cn c t chc thc hin tht nghim tc m bo cng tc bo v mi trng v s pht trin hi ha.

V. Kt lun v kin ngh:

Qu trnh kho st, phn tch v nh gi tc ng mi trng ca d n Khu ci tng m m thn Ha Vn, x Tam Ngha, huyn Ni Thnh, tnh Qung Nam c thc hin theo s dn ca Ngh nh s 80/2006/N-CP ngy 09/8/2006 ca Chnh ph v vic quy nh chi tit v hng dn thi hnh mt s iu ca Lut Bo v mi trng. T nhng kt qu kho st thc t, chng ti i n kt lun sau:

- D n l ni chn ct ngi qu c mt cch tp trung, gim c nhng tc ng tiu cc n mi trng, c bit trong trng hp chn ct vo ma l;

- To c nt vn minh trong vic chn ct, cng nh l mt phn cnh quan ca th hin i;

- Cn qun l cht ch v vic chn ct ngi trong thi gian d n ang trin khai nhng ngi m mi chn theo ng nh thit k;

- To vic lm cho mt s lao ng nhn ri xung quanh d n;

- Xc nh c nhng cht c kh nng nh hng mi trng sinh ra t c th ngi cht;

- L cc tc nhn nhim mi trng khng kh do cc kh NOx, SOx, CO v bi l long. Kh nng gy nhim mi trng nc mt t nc thi sinh hot. nh hng tiu cc lu di n mi trng nc ngm v mi trng t ngay v sau khi ngha trang ng ca.

Qua vic phn tch nhng yu t tc ng tiu cc n d n cho thy rng:

- i vi vn kh thi chng ta hon ton c th kim sot c bng cch vn dng s pha long t nhin v s dng cy xanh;

- i vi vn nc thi sinh hot ta hon ton khng ch c qua cng tc quan trc v x l kp thi cht lng nc thi;

- i vi vn nc ngm: cc khu m a tng c thit k cn thn v c quan trc theo nh k;

V vy, hot ng ca d n khng lm bin i mnh mi trng v m bo c nhng tiu chun mi trng hin hnh.

Vi nhng mt tch cc m d n mang li cng nh nhng bin php kh thi nhm gim thiu nhng tc ng tiu cc n mi trng c xut, chng ti knh ngh UBND huyn Ni Thnh xt duyt d n a vo hot ng.

VI. Cam kt bo v mi trng:

Nng cc cht nhim pht thi vo mi trng t tiu chun cho php thi vo mi trng nh sau:

- Cht lng khng kh:

+ TCVN 5937 2005: Tiu chun cht lng khng kh xung quanh;

TCVN 5939 2005: Tiu chun kh thi cng nghip i vi bi v cht thi v c.

- Cht lng nc:

+ TCVN 5942 2005: Tiu chun cht lng nc mt;

+ TCVN 6772 2005: Nc thi sinh hot;

+ TCVN 5944 2005: Tiu chun cht lng nc ngm.

- Cht lng t:

+ TCVN 7209 2002: Gii hn ti a cho php ca kim loi nng trong t.

- Thc hin cng tc gim st theo nh k, c k hoch x l kp thi khi c s c xy ra.PHN V:KT LUN V KIN NGH

I. Kt lun:

Vic u t xy dng Khu ci tng m m phc v cng tc GPMB d n ng cao tc Nng Qung Ngi on qua thn Ha Vn, x Tam Ngha, huyn Ni Thnh p ng nhu cu v nguyn vng ca i b phn dn c trong khu vc trong vic n nh trt t quy hoch xy dng theo nh hng ca chnh quyn.II. Kin ngh: cng trnh sm c thc hin, knh trnh Trung Tm Pht Trin Qu t huyn Ni Thnh v UBND huyn Ni Thnh xem xt, ph duyt la chn phng n Quy hoch chi tit xy dng TL 1:500 khu ci tng m m phc v cng tc GPMB d n ng cao tc Nng Qung Ngi on qua thn Ha Vn x Tam Ngha c c s thc hin cc bc tip theo.

LIN DANH CTY CP TM-XD TRNG SA

V

CTY CP U T XY DNG THNG LONG

I DIN LIN DANH

Lin danh Cng ty CP TM-XD Trng Sa & Cng ty CP TXD Thng Long Trang 3

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