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Bo co thc tp ngh nghip IIA.N dung I.Tm hiu cc dy chuyn sn xut v cng ngh x l cht thi ca nh my 1.1 Cng ty c phn giy Hong Vn Th Cng ty c phn giy Hong Vn Th trc thuc tp on HOPACO, c t ti phng Qun Triu, thnh ph Thi Nguyn, tnh Thi Nguyn.Tin thn l Cng ty Giy p Cu m thi k trc y Php xy dng t nm 1913. T ngy 20/8/1945 n nm 1948, Nh my c i tn l Nh my Giy Hong Vn Th. Ngy 24/4/2006, sau khi c phn ho Nh my i tn l Cng ty c phn Giy Hong Vn Th. Cng ty mang Giy chng nhn ng k kinh doanh s 4600100194 - S k hoch u t tnh Thi Nguyn v giy chng nhn h thng qun l cht lng TCVN ISO 9001-2000/ ISO 9001-2000. Ngnh ngh kinh doanh ng k bao gm : - Sn xut- mua bn cc loi giy bao b cng nghip, giy lm v bao xi mng. - Mua bn hng lm sn (g, tranh, tre, na , l) - Mua bn nguyn liu, thit b ph tng ngnh giy; - Xut nhp khu giy, nguyn liu, thit b ph tng ngnh giy; Trong y, cc sn phm chnh c sn xut bao gm: - Giy F10 - Giy F33 - Giy F50 - Giy gic mu ngnh may - Giy gic mu vi tnh - Giy ba - Giy hm hp Carton.

1.1.1 Dy chuyn sn xut Nguyn liu Chn lc nguyn liu, Rc

np liu Nc tun hon Nghin B cha th Lc ct th Sng: Cho nng bt c c li Phm mu B trung gian Rc; ct Rc

My nghin a

B cha tinh Nc

B cha Xeo B lc 3 giai on

Al2O3, Keo chng thm

Sng p lc Xeo li: Phun bt giy p Sy bng l hi QCS : Kim tra cht lng

Thuyt minh s :

- Nguyn liu trong quy trnh sn xut giy bao gi xi mng ca cng ty c phn giy Hong Vn Th bao gm : - L : ba carton qua s dng ng thu mua t cc a phng trong nc. Ba carton ny c cht lng trung bnh v khng ng u, gi c thu mua khng cao. - Kin : Ba Carton c nhp t Hn Quc v Lin Bang Nga, cht lng tt. - Bt nu: c nu, kim ho t Tre, lung, g nhp t cc nh my giy Ho bnh, Thanh Ho. - Bt Graff: cng l bt giy nu nhng c p thnh tm kh, nhp khu t Nga vi gi thnh kh cao. Cc nguyn liu trn s c chn lc, loi b nhng thnh phn tp nh inh, gim, dy nha sau a vo my nghin t ti y c b sung nc tng m v kt dnh cho bt giy. Nc cng on ny ch yu l nc ti s dng li t h thng x l nc thi, bi vy gim c ng k lng nc sch tiu tn trong quy trnh sn xut. Sau khi nghin, bt giy c a vo b cha th, tin hnh lc loi b cn ct ra khi bt giy. Bt giy tip tc c sng cho nng c c li hn, Ti b trung gian, c s b sung phm mu ng nht mu sc ca bt giy, sau , bt giy tip tc c a vo my nghin a t c mn nht nh.Bt giy c chuyn sang b cha tinh vi nng bt y l 4.5%, n b cha Xeo c s b sung nc, tuy nhin lng nc y t hn nc vo my ngin t, v khng s dng li nc tun hon. Sau , bt giy c a qua b lc 3 giai on v sng p lc, ti y c them Keo v Al203 tng tnh dnh ca bt. Sau , bt giy c chuyn sang b phn Xeo li phun bt git, y l b phn x nc thi nhiu nht trong quy trnh sn xut. Sauk hi phun bt giy xong s c p thnh tm, sy kh v kim tra cht lng giy. Khi giy t cc tiu chun yu cu, s c cun thnh tm v tu theo tng loi sn phm m c cc kch thc khc nhau.

1.1.2 H thng x l nc thi

Xeo li

b thu gom

tuyn ni

iu ho Bn ct b pha ho cht Xeo lnh b n nh Bn hot tnh

b lng ct

Bn hot tnh

b Arotank

b cha bn Bn hat tnh

lng

h sinh hc

Sng Cu

Thuyt minh s :

Nc thi t qu trnh sn xut m ch yu l t h thng Xeo li c tp trung ti b thu gom, sau dn sang b tuyn ni tn thu li bt giy, hiu sut tn thu ti y ln ti 60 70% lng bt giy trong nc thi. Tip theo , nc thi c chuyn qua b iu ho. Tuy nhin, cng cc mt ng dn nc thi t b thu gom trc tip ra b lng ct v vo b iu ho m khng qua b tuyn ni. iu ny xay ra khi h thng b tuyn ni qu ti hoc lu lng x thi ln. B iu ho c chc nng iu ho cc thong s nh pH, nhit , nng ngai ra cn lm nhim v lng mt phn. B iu ho c cu to 3 ngn, ngn u tin l ngn lng ct, c tc dng lng phn bn ct cng nh bt giy, phn nc pha trn b lng c bm sang h bm v sang b iu ho. Phn bn ct lng s c h thng cu no chay dc theo b thu gom v chuyn vo b phn Xeo lnh. Sauk hi n nh cc thng s c bn ti b iu ho, nc thi s c chuyn ln b pha ho cht. Ti b ny, c h thng sc kh nhm m bo oxy trong nc thi cng nh pha trn mt s ho cht c b sung thm nh Axit H3PO4, m Ur m bo t l BOD:N:P = 100:5:1 cho sinh vt hot ng. Cng vic pha ho cht c thc hin th cng. Nc thi c tip tc a n b n nh, b ny c chc nng pha trn ng u tt c cc ho cht cng nh n nh mi trng sng ca vi sinh t. B ny cng c b tr h thng sc kh kh mnh. Tip sau l h thng b Arotank gm cc b nh, mi b li b tr 5 a sc kh gia v 4 gc ca b. p dng cng ngh sc kh t di ln c u im l hn ch c hin tng to vng, bt kh hn so vi bip php khuy o. H thng sc kh c b tr theo dng a cng gip cho kh c phn b u v rng hn. Bn hot tnh t b Arotank khi qu nhiu th s c chuyn mt phn ra b cha bn. Sau b hot tnh l b lng, y l b lng ng, nc vo t gia tm ca b, gia b cng c h thng thu bn. Nc sau khi lng c chy trn ra h thng rnh ngoi cu b v chuyn ra h sinh hc. Bn hot tnh c phn phi theo 3 nhnh: i vo Xeo lnh, i vo b cha bn khi lu lng qu ln v t tun hon li b pha ho cht trong sut 24 gi trong ngy v c kim tra thng xuyn. H sinh hc c th bo nht bn nhm gp phn x l BOD cho nc thi.. Nc thi ti b lng c nng BOD t 50 70 mg/l, sau khi qua h sinh hc s t c gi tr tim cn vi TCVN 2008 (50mg/l). H thng Xeo lnh c chc nng ti s dng li bt giy v bn hot tnh thu c trong h thng x l nc thi trn to thnh cc sn phm giy ba cng. Nguyn liu ca h thng Xeo lnh bao gm bn v bt giy t b iu ho (b lng ct),v bn hot tnh t b lng. Bn hot tnh y c s dng tng kt dnh ca bt giy, s si to thnh sn phm. 1.1.3Tnh cht v thnh phn nc thi Nc thi ca quy trnh sn xut giy ba c cha nhiu s si, hm lng BOD cao, hm lng dinh dng v xenlulozo cao, t cha cc cht c hi do

khng c giai on ty trng. Bi vy, p dng bin php sinh hc x l nc thi ca quy trnh ny l hp l, em li hiu sut cao v tit kin chi ph. - Lu lng x thi : 400-500 m3/ ngy m 1.1.3.1 u nhc im ca h thng x l: u im: - Hiu sut tun hon li c bt giy v nc thi co : bt giy l 80% i vi ba nguyn thu, nc ti s dung t 80 90%. - Chi ph x l thp: 1.500.000.000 VN/ nm - D vn hnh, yu cu t nhn lc. - X l ch tiu BOD v mt s ch tiu v mu, mi, TSS t tiu chun cho php. - C cc sn phm tn dng t h thng x l (b phn xeo lnh sn xut ba cng) - p dng mt s cng ngh ni bt nh h thng a sc kh, b lng ng - C cc bin php d phng nh : 2 h thng a sc thay phin lm vic, pha ho cht th cng trnh mt s vn hng hc khi s dng h thng pha ho cht t ng. - Kt hp thc vt (bo ty) tng hiu sut x l. Nhc im: - Ph thuc vo thi tit, nhit ngoi tri v cc yu t nh hng n mi trng sng ca vi sinh vt (pH, dinh dng, Oxy) - Xut hin mt s hin tng bt li nh : ln bn, ng vng, bt kh - H thng x l cha tht s m bo v sinh khi bn, nc thi cn trn ra ngoi. c bit ti khu vc b cha bn cn gy nhim, pht sinh mi kh chu. Nhn chung, h thng x l trn tuy cn mt vi hn ch nhng kh ph hp vi c tnh dng thi ca nh my, hiu sut x l cao,v tn thu li c nguyn liu v nc. 1.1.3.2 xut bin php - Hn ch nh hng ca cc yu t mi trng n hot ng ca vi sinh vt bng cc bin php nh lm mi che, lp t my o cc ch tiu dinh dng theo di thng xuyn. - Kt hp thm mt s bin php c hc, ho hc tng hiu sut x l. - Cn c cc bin php phn tch, kim nh cht lng nc thi u ra thng xuyn hn. Hin ti, cc c quan thm quyn ch tin hnh kim nh 4 ln / nm i vi nc thi ca nh my.

1.2 Cng ty c phn xi mng Qan triu 1.2.1 Dy chuyn sn xut v x l kh thi

II. nh gi, kim nh cht lng mi trng xung quanh 2.1 nh gi cht lng mi trng nn Kho st khu vc Thnh ph Thi Nguyn (mi trng nn khi cha xt n hot ng sn xut trn) ta thy: - Cht lng mi trng khng kh ch yu b tc ng bi hot ng giao thng - Mi trng nc (sng Cu )b nh hong bi nc thi sinh hot ca con ngi v hot ng khai thc khong sn. - Mi trng t b nh hng mnh nht ca vn b tng ho Cc thng s cn xc nh nh gi mi trng nn: Mi trng khng kh : - Bi - CO - NOX - SO2 - Ting n Mi trng nc - TSS - BOD - pH - DO - nhit - mu, mi Mi trng t : - T trng, dung trng, xp, hm lng kim loi nng trong t. La chn v tr t trm quan trc: Mi trng khng kh: - Ti cc a im khng c bt k mt hot ng sn xut no ngoi tr cc hot ng giao thng v sinh hot thng thng ca con ngi. - Mt s im vng ven ngoi thnh nhm xc nh mc nh hng ca gia thong n cht lng khng kh thc t . Mi trng nc: - Pha trn im x thi ca nh my v pha thng ngun nhng vn trong phm vi thnh ph nhm m bo o c c nh hng ca hot ng sinh hot ca ngi dn n cht lng nc. Mi trng t : - Khu vc cha chu nh hng ca hot ng khai thc than v khu vc nm trong m than nhng cha khai thc.

2.2 nh gi tc ng n cht lng mi trng ca cc hot ng sn xut:

-Cc hot ng sn xut xt n y l : sn xut giy bao b ca nh my giy Hong Vn Th; sn xut xi mng ca Nh my xi mng Qun triu v hot ng khai thc than ti m than nh ho. Kho st khu vc chu nh hng ca cc hot ng sn xut nhn thy cc hot ng ny c tc ng tiu cc mnh m n cht lng mi trng khu vc xung quanh. - Cc thng s cn xc nh : ging cc thng s mc (1.2.1) - V tr t trm quan trc: Mi trng khng kh: - t cc trm ngoi nh my vi phm vi t gn nht sau tng khong cch dn. - t trm theo chiu go thnh hnh v ngc chiu gi thnh hnh. Mi trng nc: - t trm ti im x thi v cch im x thi xui dn v pha h lu. Mi trng t : - Ly mu ti khu vc khai thc, ang tin hnh khai thc. III. cht thi rn hu c bng phng php sinh hc, nh gi hiu qu ng 3.1 Quy trnh v phng php : Dng cng: - Thng xp c np y : 30 x 30x 50 cm; V = 0.045 m3 - 4 ng nha PVC di = 3 cm, c c cc l nh so le nhau sut chiu di ca ng. - Nilong sng mu. - Vi thng hiu kh: Cc ng nha c xuyn c 2 u qua thnh xp, b tr cc ng so le vi nhau m bo phn b u kh trong thng. - Vi thng k kh: m bo kn ca thng v np thng. Nguyn liu : - Nhm 1 : Cc loi l kh nh l Keo, l Bch n, l ThngRau c qu tha v phn b, phn g - Nhm 2 : Rm, l rau xanh, rau c tha, nc bn. T l rau xanh y thp hn so vi cc nhm khc. - Nhm 3 : Bo, rau c qu thi, thc n tha.(t l 2.5 :2.5) - Ph gia: ch phm vi sinh EMIC Chun b nguyn liu : - Cc nguyn liu bao gm rau c qu, bo, rm u c bm nh. Kch thc t 3 7cm. L kh nguyn - Bo c phi ro nc trc mt ngy. C s khoa hc ca phng php: - Da vo kh nng phn hu k kh v hiu kh ca vi sinh vt. - Mc phn hu cht hu c ca vi sinh vt khi c s b sung t ch phm vi sinh.

3.2 Tin hnh : - Trn u cc nguyn liu chun b sn. - 30 gam Ch phm EMIC pha long vi 4 lit nc cho 2 thng . - Dng bnh xt nh xt u ht 2 lt ch phm ln ng . Sau xp tng lp vo thng, mi lp li xt ch phm mt ln. - Vi thng ym kh c lt nilon pha di y thng, sau khi cho ch phm vo, tip tc ph mt lp nilon pha trn. y np thng v dn kn bng bng dnh. - Tin hnh xc nh li khi lng ca 2 thng ( tr b). - Tin hnh ng i chng ngoi tri, c cho ch phm vi sinh. 3.3Kt qu : Sau 12 ngy tin hnh (t ngy 27/12 n 09/01/2012). Ta thu c kt qu sau: Hiu kh : ch tiu Nhm 1 Nhm 2 Nhm 3 Nguyn liu L kh, thc n Rm, thc n Bo, thc n tha tha v phn gia tha, bn sc Khi lng ban 6.5 5 14 u (kg) Khi lng sau 6.6 4.8 10 khi (kg) Mu sc ban u G nguyn ma gi nguyn mu G nguyn mu sc ca nguyn sc ca nguyn sc ca nguyn liu liu liu Mu sc sau khi L c mu nu Mu en Mu en sm, rau c mu vng Mi C mi hi C mi ng mc Mi mc nng Th tch sau khi Gim th tch gim nh th tch gim cn 0,5 th tch ban u m cao Cao Cao Nc r rc c Khng c Khng c Tnh trng phn ang phn hu, hu cung bo v r bo vn gi hnh dng ban u Ghi ch khc

K kh:

Ch tiu Khi lng ban u (kg) Khi lng sau khi (kg) Mu sc ban u

Nhm 1 10.5 10.6

Nhm 2 10 9.9 G nguyn mu sc ban u ca cc nguyn liu Mu xm en Mi hi Khng c nc r rc C nm mc bt u phn hu

Nhm 3 14 13 G nguyn mu sc ban u ca nguyn liu Mu gn ging vi mu nguyn liu ban u Mi chua thiu gim 20% C nc r rc xut hin nm mc lp trn bt u phn hu, hnh dng nguyn liu hu nh vn c gi nguyn

Gi nguyn mu sc ban u ca nguyn liu Mu sc sau khi L ng nu sm, rau a vng Mi th tch sau khi Nc r rc Nm mc Tnh trng phn hu Ghi ch khc c mi ca rau c b phn hu Khng gim C nc r rc Khng c nm mc Bt u phn hu

Mu i chng ( ngoi tri): - hiu kh: lp trn cng vn gi nguyn hnh dng, mu sc, cha h b phn hu.Lp di b phn hu tng i, c mu nu en, m cao. - k kh (cph nilon): Lp trn cha b phn hu, lp di ang phn hu, mu nu en, m cao hn ng hiu kh. Nhn xt kt qu: - hiu khi c tc phn hu mnh hn k kh, th hin qua: mu sc thm hn; th tch v khi lng gim ng k; nguyn liu b phn hu r rt hn. - Trong 3 nhm, tc phn hu ca ng nhm 3 l nhanh v r nht. Khi lng ca hiu kh gim 28.5%, k kh gim 8%. - iu ny c gii thch bi nhm 3 c t l nguyn liu chnh xc nht : Bo: thc n tha = 50:50 . Hn na, nguyn liu ca nhm u l nhng nguyn liu d phn hu, trong khi , nguyn liu ca nhm 1 c l cy kh rt kh phn hu; nguyn lieu ca nhm 3 c t l rau xanh qu t cng dn n tc phn hu chm. - m cao v xut hin nm mc mt phn do thi tit ma m trong nhng ngy . - Qua ta thy, hiu kh mang li hiu qu cao hn k kh , t c mi kh chu v nc r rc hn. Nguyn liu cng cha nhiu nhng cht d phn hu, hm lng nc ln, x t nh rau, c, qu.th qu trnh phn hu din ra nhanh hn nhng cht cha nhiu x nh : rm, l cy kh

3.4 xut gii php v hng pht trin: - Khi tin hnh cn ch n thnh phn, t l nguyn liu v nng ch phm . - Nn tin hnh ti nhng ni c mi che nhm hn ch tc ng ca thi tit, kh hu. Ch n nhit ngoi tri c nhng iu chnh thch hp - B sung thm cc l kh cng nh cc ng nha iu kin oxy c m bo hn - C th trong thng g hoc o h hn ch vic s dng thng xp. C thit k thm cc rnh thu nc r rc. - Tuyn truyn li ch t vic phn Compost cho ngi dn, t y nhn rng, pht trin vic phn Compost ra khu vc. - C th tin hnh phn ti tng h gia nh hoc tp trung cho tng khu ph. - C cc bin php phn loi rc hu c/ v c ti ngun, v phn loi rc hu c c m cao/khng c m cao hay nhiu cht x/ t cht x thun tin hn trong qu trnh . u tin cng ngh hiu kh gim nhng nhim th cp. IV. nh gi kh nng bo v ngun nc, bo v t chng xi mn ca mt m hnh rng c th - Tin hnh iu tra ti khu vc Ni Lut - Trng i Hc Lm Nghip. - Lp 2 tiu chun 20 x 25m. - Tin hnh khp gc theo nh l Pitago, iu tra h thng 81 im. Xc nh xi mn theo cng thc

Trong : d l cng xi mn (mm/nm)

K l ch s xi mn ca ma hay i lng phn nh nng lc gy xi mn ca ma, tnh da vo lng ma v cng ma trong khu vc -

TC, CP, TM. Max = 1 xp X (thng khng vt qu 0,75) c xc nh nh sau : B A C

tag = BC/ AC

Chiu di AB khng i

Kt qu thu c: a. tiu chun 1 : ch yu l cc loi cy trng nh Thng, Lim xt, Su v mt s cy th sinh. Thm ti cy bi t, thm mc l kh chim ch yu. dc quan st theo trc quan kh ln, tuy nhin c s hnh thnh dng chy. Cc nhn t Gi tr trung bnh o c tn che (TC) che ph (CP) Thm mc (TM) Chiu cao cy (H) xp (X) Ch s xi mn ca ma (K) dc () d = 0,309 (mm/nm) Vy xi mn tiu chun 1 l d= 0.309 mm/ nm b. tiu chun 2 - T l cy bi v cy th sinh cao. - dc khng qu ln, khng hnh thnh dng chy. - Cc cy thng gp : Thng, inh thi, n gai Cc nhn t Gi tr trung bnh o c 0,914 0,358 0,938 11,402 0,4 513,4579 14,052

tn che (TC)

0.667

che ph (CP) Thm mc (TM) Chiu cao cy (H) xp (X) Ch s xi mn ca ma (K) dc () d = 0,315 (mm/nm)

0.901 1.000 13.546 0,47 513.4579 9.168

xi mn tiu chun 2 l d= 0.315 mm/ nm Cu trc lm phn Ch tiu Chiu cao di cnh (Hdc)-m ng knh tn (Dt)-m ng Ty Nam Bc ng ty Nam Bc

OTC1 9,13 3,582 3,709 14,175 15,71 34.5

OTC2 8,154 3,308 3,697 17,716 17,627 58.65

ng knh ngang ngc (D1,3)-cm

Chiu cao trung bnh ca thm ti cy bi - cm

So snh xi mn ti 2 tiu chun ta thy kt qu o xi mn 2 tng ng nhau. Tuy nhin tiu chun 2 cao hn mc d c dc thp l do ti y tn che, che ph thp hn. Bn canh , xp cao hn dn n lng t b bo mn s tng ln. tiu chun 1 c hnh thnh dng chy(khe) bi vy tp trung phn no lng nc ma ri xung ti mt khu vc, gim lu lngg/ tc dng chy b mt v din tch t b xi mn.Cn thc hin cc bin php phng chng xi mn nh trng rng phng h, trng rng hn giao. v. Kho st, nh gi hiu qu ca cc m hnh Biogas a im: X ng Yn - Huyn Quc Oai Hin nay, x ang p dng hai m hnh l:

- M hnh Biogas xy bng gch do d n Vit Nam H Lan ti tr. - M hnh Biogas Composite, cng ngh v thit b c cung cp bi cng ty Hng Vit. 6.1 M hnh Biogas xy bng gch c pht trin ti a phng bt u t nm 2007 thng qua chng trnh Nc sch v v sinh mi trng nng thn , n nay nhn rng ra khp x vi hn 61 cng trnh. M hnh ny gm 6 kch c khc nhau tng ng vi tng quy m chn nui. Hin nay ti a phng ang p dng t c 6 n c 15 Kch c Th tch tng ng (m3) 4 6 9 12 15 18 6 7,8 11,8 14,9 18 >20

Hnh: M hnh hm biogas xy bng gch u im: - Nguyn liu d kim: xi mng, gch ngi - Thi cng n gin;

- C kt cu bn vng, bo m chng d r nc v kh v th tng kh nng sinh kh; - C kh nng t tng cn b nn khng b n tc cn, c kh nng t ph vng b mt; - Mc sinh kh nhanh, sn lng kh cao, n nh trong mi iu kin thi tit; - S dng c lu di, t hng hc. - Gip bo v sc kho con ngi, tiu dit vi trng gy bnh. Nhc im: - Cng knh, tn din tch. - Khng xy dng c trn nn a cht yu,gp hn ch khi cc hin tng st ln, nt y xy ra. - Khng di chuyn c. 6.2M hnh Biogas bng nha Composite c lp t sn bng nha tng hp, gm 2 kch thc l 7m3 v 9m3 . u im : Tin li, gn nh, d lp t. Tn dng din tch, d di chuyn Kh nng sinh kh cao hn 2- 2.5 ln so vi b xy bng gch , lp t c trong nhiu a hnh khc nhau. T ng ph vng 100%. an ton cao do c b t iu p kh ga khng cn van an ton. Nhc im: Ga thnh lp t cao hn b xy bng gch. Ch c 2 kch c v 2 c ny kh nh. VI. nh gi hiu qu v tc ng n mi trng ca h thng Biogas ti a phng: Do a phng ch yu l hot ng sn xut nng nghip,cc ngun nguyn liu sn xut kh sinh hc c sn, nn vic p dng m hnh Biogas gii quyt c vn x l phn chung, to phn bn v to ngun kh t. Tuy nhin, nc thi sau khi qua b Biogasvn c thi trc tip ra ngoi nn gy nh hng n mi trng xung quanh v to iu kin cho bnh dch pht trin.Cn b sung cc cng trnh nh b sinh hc x l ngun nc thi ny trc khi s dng lm phn bn. Tuy nhin, h thng dn kh ca mt s h gia nh vn cha c m bo, dn bng ng nha v cha c van an ton. Kh gas vn cn b ln mt s tp cht, dn n n mn cc thit b s dng v gy nguy him Nhn chung, a phng c nhng bin php s dng kh sinh hc hp l, khoa hc. p dng cc thit b tiu th kh nh my pht in, bong n. Khi kh pht sinh qu nhiu th c th cha trong cc ti d tr hoc t x.

B. Kt lun - Cc h thng x l nc thi v kh thi ca 2 nh my hot ng kh hiu qu, hiu st x l cao, x l c trit cc cht nhim. Hai H thng c s dng cc thit b hin i nh lc bi tnh in hoc cng ngh i mi nh b phn Xeo lnh. - Tin hnh ly mu quan trc bn trong nh my v cht lng nn xung quanh nh my xc nh nh hng ca hot ng sn xut n cht lng mi trng. - H thng Biogas c pht trin ti khu vc x ng Yn, huyn Quc Oai . em li nhiu li ch v kinh t cho ngi dn, ngai ra, cn gip tn dng cc sn phm nng nghip, bo v mi trng. - Hai h thng Biogas xy bng gch v lm bng nha Composite u c nhng u im- nhc im ring. Do vy, tu thuc vo iu kin ca gia nh m la chn m hnh thch hp. - Phn Compost t rc tah sinh hot cho thy hiu qu tt, kh nng p dng, nhn rng cao. Tn dng li c lng rc thi v to ra ngun phn bn sch.

Hnh 1 : b iu ho

Hnh: b lng. Nc c chy trn ra ngoi

Hnh : Lc bi tnh in Nh my xi mng Qan triu

Hnh: khi thi nh my xi mng c mu xm

Ti liu tham kho 1. TS. Phm Dao Du, Bo co ti KHCN cp Nh nc, Nghin cu ch to thit b ph tng thay th cho cng nghip xi mng l quay 1,4 triu tn/ nm, 2005 2. Th.s Nguyn Tn Dng, n x l nhim khng kh. 3. TCVN 5977:2005 S pht thi ca ngun tnh - Xc nh gi tr v lu lng bi trong cc ng dn kh - Phng php khi lng th cng;

4. QCVN 23:2009 : Quy chun k thut quc gia v kh thi cng nghip sn xut xi mng 5. http : www.hopacothainguyen.com.vn 6. http: www.yeumoitruong.com 7. http: www.nea.gov.vn