PHUONG PHAP TINH TOAN PHATTHAI VA LANG 1 / 6 T AXIT
TRUNG TAM HOP TAC DAO TAO VA B6 IDU ONGCO HOC "^^
Tix cdng thiic tren, nhan thay de cd dugc lugng phat thai chfnh xac ta
can phai cd cac sd do chfnh xac 5, v, C tir nguon phat thai. Lugng phat thai
thdng thudng dugc tfnh bdng don vi kg/h hoae bdng don vi ta'n/nam.
2,1,2. TINH TOAN Ll/ONG PHATTHAI THEO PHl/ONG PHAP GIAN TIEP
Tfnh toan lugng phat thai bdng phuong phap gian tid'p la lugng phat thai dugc tfnh toan thong qua cac he sd phat thai, khdng qua do dac. De cd nhung he so phat thai nay, ban dau ngudi ta cung phai qua do dac, sau dd khai quiit hoa de ap dung cho cac trudng hgp tuong tu.
Uu diem cua phuong phap nay la khdng can phai do dac true tid'p tai dng khdi, vi vay, phuong phap nay da giai quyet dugc toan bg nhiing khuyd't didm cua phuong phap true tid'p. Nhugc diem ciia phuong phap nay la qua trinh san xuat trong mdi mot nha may mot khac nhau mac du ciing mot cdng nghe san xuat, va nd'u ap dat ciing mot he sd phat thai cho cac nha may thi se gay ra sai sd.
Hien tai, d Viet Nam chua cd mdt nghidn ciiu nao chuyen sau de dua ra nhiing he sd phat thai cho cac nganh san xuat cua Viet nam. Phan ldn khi tfnh toan lugng phat thai cua cac nha may, cum cdng nghiep... cac nha nghien ciiu thudng ap dung nhiing he sd phat thai eua nude ngoai khi khdng cd dieu kien do true tid'p.
Hien nay cd ba each tinh lugng phat thai theo cac each md phdng cua Td chiic Y te The gidi (WHO), Lien xd cu va Cue Bao ve Mdi trudng Lidn bang My (EPA). Ca ba each tinh trdn deu dua vao cac he sd phat thai, tinh cho mdt don vi nhidn Ueu su dung.
J-u^n vdn T^iifi^ sy
OAI HOC QUOC GIA - VIEN CO HOC
TRUNG TAM HOP TAC DAO TAO VA B<5l DUONG CO HOC 36