Mô phỏng vùng phát tán bụi từ Nhà máy xi măng Long Sơn

Ngo Tri Mai va Dtg Tap chf KHOA HQC & CONG NGHE 173(13): 39-43

MO PHONG VUNG PHAT TAN BUI TlT NHA MAY XI MANG LONG SON

Ng6 Tri Mai', Kiiu Quoc Lip^'

'Vi4n Vgt /)! - Vien Han lam Khoa hpc va Cong ngh? Vi?l Nam

^Truang Dai hgc Khoa hoc - DH Thdi nguyen

TOM TAT

Bii bio trinh biy kit qui ling dung phuang phap md hinh trong md phong viing vi ning do phit lin

byi tir Nha may xi ming Long Son, c6ng suit 2,3 triSu tin/nim. Trong hai trudng hop: He thing byi

hogt dflng hiSu qui (sii dyng md hinh Gauss vi Arcview); Diy chuyin sin xuit gap sy co din den

toin bd lugng byi khdng dupe xil 1;^ (sil dung md hinh Berliand vi Arcview). Kit qua cho thay:

Khi hS thdng xii l^? bui hoat dpng in djnh, tai tit ci cic khoang cich vi vi trf phit tin ning dp byi

diu nim trong gidi hgn cua QCVN 23:2009/BTNMT. Tnrdng hgp quy trinh sin xuit, h? thing xu

1^ byi gap sy cfl, ning dp byi vugt ngudng ttr 3,2-8 lin o trong pham vi bin khih tir 500-1600 m.

O khoing cich dudi 500 m va trln 1600 m, miic dS phit thai bui khong Idn nhung cfing vupt

ngudng khoang 1,5 -3 lin. Ngoai pham vi 3000 m nhin chung khing chju sy chi phii ciia bui lan

tmyin tir Nhi miy.

Tir khoa; md hinh Gauss, md hinh Berliand, GIS, phdl Idn biii. xi mang Long Son

DAT VAN DE

Hiln nay, 6 nhiem bui tai cac ca sd sin xuat

vgt lieu ndi chung dang li van de dugc cdng

ddng quan tam, dgc biet li tgi cac nha miy

ggch, xi mang do dgc diem cdng ngh? vi tinh

chat ngudn thii. Nha may xi mang Long San

tgi thj xa Bim San, tinh Thanh Hda dugc dau

tu xay dung vi di vao hoat dgng til thing 6

nim 2016, vdi cdng suit 2,3 trieu tan xi

mang/nam. Khi nha may di vao hoat ddng da

iip dat he thong xii ly bui va khi thii ddng bg.

Tuy nhien chua co nghiln ciiu tinh toan ve

kha nang phat tin byi ciia nha miy trong cac

trudng hgp cy the.

6 Viet Nam da cd nhieu cdng trinh khoa hgc

nghien cuu ve miic do phat tan cac chat d

nhiem vao khdng khi ung dung md hinh

Gauss va mgt sd md hinh lan truyen khic, tuy

nhiln viec phan vung d nhilm trong trudng

hgp he thing xir 1^ byi gap su ci hiu nhu

chua dugc di cgp [1], [2], [4]. Vdi md hinh

Gauss hay md hinh Berliand, ben cgnh uu

diim li du bio nong do va khoing cich phat

tin cic chat d- nhilm thi han chi Idn nhit ia

chua xic dinh dugc mdc do phat tan nen hien

trang khdng gian lanh thd. Kit hgp dong thdi

cic md hinh si giiip tac gia xac dinh dugc

* Tel: 0985 281380. Email [email protected]

nong do byi theo khoing each va ban kinh

phat tin gin vdi nin hiln trang trong 02

trudng hgp diln hinh; (1) HI thdng xii ly bui

hogt ddng binh thudng (dat cdng suit va hieu

suit dung -thiit kl); (2) Trudng hgp day

chuyin san xuat hoac he thdng xir ly bui gap

sy cd.

Bii bao trinh bay ket qui chay md hinh Gauss

vi Berliand, ling dung HI thong thdng tin dia

ly (GIS - su dyng phan mem Arcview) de

phan viing anh hudng tii bui phit tan ra moi

trudng tai Nhi may xi mang Long Son vi

viing phu can. Kit qui nghiln ciiu da chi rd

phgm vi phit tin trong cic trudng hgp cu the,

tao CO sd cho cac nhi quan ly chu ding xay

dyng phuang an ling phd khi cd nii ro su co

xay ra tirNha may.

DOI TUONG VA PHUONG PFIAP

NGHIEN CUU

D6i tupng nghiin cA-u: Quy trinh san xuit va

nguon phat thii Nhi may xi mang Long San

trong hai trudng hgp: (1) HI thong xii ly bui

hogt ddng hilu qui; (2) He thdng xu ly byi gap

su CO khi day chuyen sin xuat dang van hanh.

Phu-ffng phap nghiin ciru: Bin cgnh cac

phuang phap truyin thdng troug nghien ciiu

mdi trudng; dieu tra khao sat thyc dja, tdng

hgp phan tich so lieu,... Phuang phap chu yiu

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