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T R N G I H C N N G L M K H O A C N G N G H T H C P H M

N H M 6 -L P D H 0 7 B Q

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HIN TRNG V PHNG PHPX L NC THI TRONG

CH BIN THU SN NGLNH

TRNH BY:TRN TH KIM TRCMSV:07125272

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Nc ?

Tng d tr:1386 tr m3Nc ngt: 3%

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Nc c dng vo:

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nc sau qu trnhx dng bbin i nhng tnh cht l ho ban

u vn c gi l nc thi

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Ngun pht sinh nc thi trong sn xutthy sn ng lnh

Tip nhn nguyn liu;mui, mnh vnnguyn liu

Ra: mui, clorinS ch, ch bin: vn ni tng, vy,

xng da, mu

Ty ra my: nhiu ho cht

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nu khng c x l s lm en nc,bc mi hi thi do cc vsv phn hu, gy nhim nc, khng kh, t nhngvng nc thi chy qua, lm cht sinhvt sng trong nc, t, pht tn dchbnh

phi x l trit cng nhanhcng tt

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Thc trng vic x l nc thi trong chbin thu sn ng lnh

Thit b x l nc thi cn lc hu so vi thgii

Nc thi trong ch bin thu sn ng lnh

nhiu hn cc ngnh khcXy dng nh my trc khi lut bo v mi

trng ra i

Ti chnh hn hp trong khi trit b x l t tinCng tc t vn, x l vi phm cha nghim

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Bng 1: Thnh phn nc thi trong ch bin thusn ng lnh

Tn ch tiu n v Kt qu TCVN 5945:2005 ct A

pH - 5,5 - 9 6 - 9

Cht rn l lng mg / l 400 - 800 50

COD mgO/l 1.500-2500

50

BOD mgO/l 700 1.200

30

Coliform tng MPN/100 ml .105 - .106 3.000

S Khoa Hc v Cng Ngh Bn Tre

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1. chn rc

Loi b cht thi th: vy c, mu th vn,ni tngtrnh tc nhn ng ng knhdn

x dng li chn, trng quay: thay thb lng 1,tit kim chi ph xy dng

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Hnh 2: Trng quay

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2.Tch m

lng du m c trong ch bin thy sn nhiuhay t ty thuc vo ngun nguyn liu,phngphp v quy trnh ch bin.

u m nhiu lm tng lng cht l lng trongnc v lu ngy lm tt nghn ng ng dn

C th loi b m bng phng php phn tchtrng lc

Thit b phn tch nghing loi b m didng nh tng

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Hnh 3:

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3. H k kh

dng vi sinh vt k kh phn hy cc

hp cht hu c thnh sn phm dngkh (ch yu l metan v dioxitcacbon)

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Ty thuc vo trng thi ca bn c thchia qu trnh x l k kh thnh:

Qu trnh x l vi vi sinh vt sinh trng dngl lng nh qu trnh tip xc k kh (Anaerobic

Contact Process), qu trnh x l bng lp bn kkh i t di ln(Upflow Anaerobic SludgeBlanket-UASB)

Qu trnh x l k kh vi vi sinh vt sinh trngdng dnh bm nh qu trnh lc k kh(Anaerobic Filter Process)

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UASB c ng dng rng rido hai t tnh

C ba qu trnh phn hy, lng cn, tch kh

c lp t trong cng mt cng trnhTo thnh cc loi bn c mt vi sinh vt rtcao v tc lng vt xa so vi bn hot tnhhiu kh dng l lng.

C kh nng hot ng theo ma v bn k khc th hot ng li sau mt thi gian khngnp nguyn liu.

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Hnh 3: S o

ham u UASB1. au vao

2. au ra3. Biogas

4. Thiet b gibun (VSV)5. Khu vc co t

bun hn

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4.B lm thong

Sau khi c x l qua b UASB nc i ra cnln mt lng nh cht hu c hn trc vmi hi ca kh metan

thi khng kh vo b xung lng kh ha tan

trong nc, trn nc thi vi sinh vt sinh trng hiu kh dng l lng s

pht trin v phn hy lng cht cacbon hatan cn li cha phn hy trong qu trnh k kh

nh vy ti y cht hu c c x l mtcch trit hn l ch x l qua UASB mkhng qua b lm thong

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5.Lng

Ti y lng bn theo nc i rat b lm thong s c lngxung

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6. Tip xc clo

dit vi khun v toHiu qu qu trnh kh trng ph thuc

vo d lng clorin t do.( J.F.Gonzalez

-Nguyn Qunh Hng dch, 1999)

Hnh 4:

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7. ng t

Sau khi c kh trng bng clo hu htcc vi khun v to c tiu ditnhng nc vn cn c v c mi clo.

Lc ny nc t tiu chun TCVN5945:2005 ct B

S dng cht keo t PACN-95

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Thnh phn cht PACN-95:Aluminum hyderoxychloride 75%Xanthan gum bin tnh 7-10%Chitosan bin tnh 2-3%Cc cht ph tr 12-16%m

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Ti liu tham kho:

J.F.Gonzalez, X l nc thi trong cng nghip thy sn (Nguyn Qung Hng dch), NXBNng Nghip H Ni,Vit Nam,1999

Nguyn Trung Vit, Trn Th M Diu, 2006, gio trnh c s cng ngh mi trng.Cng ty Tm Nhn Xanh(www.gree-vn.com\pdf\chuong_5_cscnmt.pdf)

UBND Thnh ph NNG

http://www.danang.gov.vn/home/view.asp?id=61&id_tin=17218&kieu=in(Cp nht lc:Th su, 05/09/2008 ) i Hc Cn Th

http://www.ctu.edu.vn/colleges/tech/bomon/ttktmoitruong/daotao/giao%20trinh%20dien%20t

Nguyn Vn Vinh, S Khoa Hc v Cng Ngh Bn Tre.http://www.dost-bentre.gov.vn/index.php?option=com_content&task=view&id=1442&Itemid(cp nhp lc: 31/01/2009)

http://www.thienhoaltd.com/Ladoth/54/CategoriesID/153/ArticleDetail/Details/ItemID/357/NM

http://www.gree-vn.com/pdf/chuong_5_cscnmt.pdfhttp://www.danang.gov.vn/home/view.asp?id=61&id_tin=17218&kieu=inhttp://www.ctu.edu.vn/colleges/tech/bomon/ttktmoitruong/daotao/giao%20trinh%20dien%20tu/xlnt/disinfection.htmhttp://www.dost-bentre.gov.vn/index.php?option=com_content&task=view&id=1442&Itemid=138http://www.thienhoaltd.com/Ladoth/54/CategoriesID/153/ArticleDetail/Details/ItemID/357/NMod/386/Tin_tuc.aspxhttp://www.thienhoaltd.com/Ladoth/54/CategoriesID/153/ArticleDetail/Details/ItemID/357/NMod/386/Tin_tuc.aspxhttp://www.dost-bentre.gov.vn/index.php?option=com_content&task=view&id=1442&Itemid=138http://www.ctu.edu.vn/colleges/tech/bomon/ttktmoitruong/daotao/giao%20trinh%20dien%20tu/xlnt/disinfection.htmhttp://www.danang.gov.vn/home/view.asp?id=61&id_tin=17218&kieu=inhttp://www.gree-vn.com/pdf/chuong_5_cscnmt.pdf

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THE END