gototop
Banner

home

KH?O ST HI?N TR?NG V TI?M N?NG ?NG D?NG H?M ? BIOGAS ? M?T S? X THU?C T?NH TI?N GIANG

T?p ch Khoa h?c Tr??ng ??i h?c C?n Th? s? 28 (2013): 80-85 Tc gi?: ?o Mai Trc Qu?nh, Nguy?n V Chu Ngn, Jan B...

Factors Influencing the Adoption of small-scale biogas digesters in developing countries - Empirical

The use of small-scale biogas digesters among farmers and households in rural areas of developing co...

?NG D?NG M HNH KH SINH H?C HDPE C?I TI?N V?I NGUYN LI?U N?P R?M V L?C BNH S?N XU?T BIOGAS

1. Gi?i thi?u m hnh kh sinh h?c lo?i HDPE c?i ti?n Vi?c ?ng d?ng m hnh kh sinh h?c trong x? l ch?t th?i ch?...

Publicaions in 2016 - 2017

STT Tn bi bo Abstract -E Abstract -VN 1 Ngo Thi Thanh Truc, Tran...

Biogas production from corn (Zea mays) stalks: effects of size

Study on size effects of corn stalks for biogas production was evaluated for three differe...

  • KH?O ST HI?N TR?NG V TI?M N?NG ?NG D?NG H?M ? BIOGAS ? M?T S? X THU?C T?NH TI?N GIANG

  • Factors Influencing the Adoption of small-scale biogas digesters in developing countries - Empirical

  • ?NG D?NG M HNH KH SINH H?C HDPE C?I TI?N V?I NGUYN LI?U N?P R?M V L?C BNH S?N XU?T BIOGAS

  • Publicaions in 2016 - 2017

  • Biogas production from corn (Zea mays) stalks: effects of size

Typical Image

 
1
9
Tong ket hoi thao
poster chi - eng
poster hong - eng

  • PDF
so tay lap dat

a. Tr??ng h?p v?n hnh hon ton b?ng phn heo

S?n l??ng kh sinh h?c n?p vo ti ? ???c tnh ton d?a trn hm l??ng ch?t r?n bay h?i, v?i l??ng nguyn li?u n?p cho h?m ? khng c gi bm dao ??ng t? 1 4 kg VS.m-3.ngy-1 (Eder and Schulz, 2007). Phn heo t??i c hm l??ng TS v VS l?n l??t l 65,3 v 54,6% (Tr?n S? Nam et al., 2015), t??ng ?ng 1 kg phn heo t??i c hm l??ng VS l 0,3 kg. V?i th? tch c?a ti ? HDPE c?i ti?n l 6,8 m3, l??ng n?p VS c th? ti?p nh?n c?a ti t?i ?a l 91 kg phn/ngy (kho?ng 40 ??u heo). V?i l??ng VS n?p l 1 kg VS.m-3.ngy-1, th?i gian l?u ch?t th?i trong h? th?ng 30 ngy, n?ng su?t sinh kh c?a phn heo l 254 lt/kgVSn?p (Tr?n S? Nam et al., 2015).

Theo Rajendran et al. (2012) nhu c?u s? d?ng kh sinh h?c cho m?i nng h? trong ngy dao ??ng t? 1 1,5 m3. T??ng ?ng, c?n l??ng phn heo t??i cho ti ? t? 13 20 kg/ngy, t??ng ???ng 5 8 ??u heo (v?i l??ng th?i trung bnh 2,5kg phn/ngy cho heo t? 45 100 kg).

b. Tr??ng h?p v?n hnh hon ton b?ng r?m v l?c bnh

R?m v l?c bnh l nguyn li?u kh phn h?y sinh h?c so v?i phn heo nn l??ng nguyn li?u n?p ??i v?i ??i v?i ch?t th?i r?n ???c ?? ngh? trong kho?ng t? 0,64 1,6 kg VS.m-3.ngy-1 (Appels et al., 2008). Nn ch?n l??ng nguyn li?u n?p cho ti ? l 1 kg VS.m-3.ngy-1, l??ng nguyn li?u n?p qu cao s? d?n ??n s? tch l?y cc a-xt v gy ?c ch? s? ho?t ??ng c?a vi sinh v?t, l??ng n?p qu th?p s?n l??ng kh sinh ra t, khng ?p ?ng ???c nhu c?u s? d?ng n?ng l??ng c?a nng h?.

N?p 100% nguyn li?u n?p r?m c n?ng su?t sinh kh 195 lt/kgVSn?p (Tr?n S? Nam et al., 2015). R?m c hm l??ng TS v VS l?n l??t l 87,7% va 83,7%, t??ng ?ng 1 kg r?m kh khng kh c 0,72 kg VS. V?i th? tch ti ? l 6,8 m3 l??ng VS b? sung vo ti ? l 6,8 kgVS/ngy, t??ng ?ng v?i l??ng r?m b? sung cho ti ? l 9,4 kg/ngy, s?n l??ng kh sinh ra dao ??ng t? 1,3 m3/ngy. ?? ??m b?o nhu c?u s? d?ng cho nng h? t? 1,0 1,5 m3 th l??ng r?m c?n b? sung hng ngy cho ti ? dao ??ng t? 7,7 10,7 kg r?m/ngy.

N?p 100% nguyn li?u n?p l?c bnh c n?ng su?t sinh kh 353 lt/kgVSn?p (Tr?n S? Nam et al., 2015). L?c bnh c hm l??ng TS v VS/TS l?n l??t l 5,5% va 81,2%, t??ng ?ng 1 kg l?c bnh t??i c 44,7 gVS. V?i th? tch ti ? l 6,8 m3 l??ng VS b? sung vo ti ? l 6,8 kgVS/ngy, t??ng ?ng v?i l??ng l?c bnh t??i b? sung cho ti ? l 152 kg/ngy, s?n l??ng kh sinh ra dao ??ng t? 2,4 m3/ngy. ?? ??m b?o nhu c?u s? d?ng cho nng h? t? 1,0 1,5 m3 th l??ng l?c bnh c?n b? sung hng ngy cho ti ? dao ??ng t? 60 90 kg l?c bnh/ngy.

c. Tr??ng h?p v?n hnh v?i h?n h?p nguyn li?u n?p

S?n l??ng v thnh ph?n kh sinh h?c sinh ra ph? thu?c vo t?ng t? l? ph?i tr?n nguyn li?u r?m v?i phn heo. ?? duy tr s?n l??ng kh sinh h?c c?n thi?t cho s? d?ng th c?n n?p b? sung r?m ho?c l?c bnh v?i phn heo v?i t? l? t? 20 80% v?i s? l??ng heo t? 1 5 con theo B?ng 8.6 l??ng heo cng t th l??ng r?m/l?c bnh c?n b? sung cho m?i ti ? t?ng ln v ng??c l?i.