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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

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

Tc gi?:Nguy?n V Chu Ngn, Nguy?n Th? B Gi, Nguy?n Th? Thu Vn

K? y?u h?i ngh? khoa h?c ton qu?c Ch?n Nui Th Y, 2015. NXB Nng Nghi?p

ABSTRACT:

This study evaluated the treatment efficiency of microorganisms on anaerobic co-digestion from pig dung and biomass. The experiment systems used 5 L glass bottles which connected to aluminum bag for gas collection. There were 5 treatments (NT) set up randomly with treatments 1 and 2 fed 50 pig dung (PH) and 50% water hyacinth (LB) cut of 1 cm and 10 cm, respectively; treatment 3 and 4 fed 50% PH and 50% rice straw (RO) cut of 1 cm and 10 cm, respectively; and treatment 5 fed 100% PH as control treatment. All treatments were nin in 45 continuous days. The results showed reduction of worm eggs and harmful bacteria by time. The eliminating efficiencies were more than 98% for ascarid eggs, and 100% for hookworm eggs and hairworm at all treatments. The treatment efficiency of total Coliform ranged from 99.78-99.98%; Enterococcus from 95.17-99 .97%; E. coli from 99.78-99.99%; Salmonella from 76- 97.8%. The treatment efficiency was rather high but the remaining germs were still higher than discharge standards on QCVN 40:2011/BTNMT, QCVN 01-14/BNNPTNN and WHO (2006). Further study on treating of digester effluent is therefore needed to reach the discharge standards.

Keywords:anaerobic co-digestion, biogas technology, harmful bacteria, worm eggs.

TM T?T:

Nghin c?u ???c th?c hi?n nh?m ?nh gi hi?u qu? x? l vi sinh v?t c?a m? ? y?m kh n?p nguyn li?u ph?i tr?n. Th nghi?m s? d?ng cc bnh ? th?y tinh 5 L lin k?t v?i ti nhm ch?a kh, g?m 5 nghi?m th?c (NT) b? tr hon ton ng?u nhin trong ? NT1 v NT2 n?p h?n h?p 50% phn heo (PH) v 50% l?c bnh (LB) v?i LB kch c? 1 cm v 10 cm; NT3 v NT4 l hai nghi?m th?c ph?i tr?n 50% PH v 50% r?m (RO) v?i RO ???c c?t nh? 1 cm v 10 cm; NT 5 l nghi?m th?c ??i ch?ng n?p 100% PH, th?i gian ? 45 ngy. K?t qu? th nghi?m cho th?y s? l??ng tr?ng giun sn v vi khu?n gy b?nh gi?m ?ng k? qua 45 ngy ?. Hi?u su?t lo?i b? tr?ng giun ??a trn 98%, tr?ng giun mc v tr?ng giun tc ??t 100% ? c? 5 nghi?m th?c. Hi?u su?t x? l t?ng Coliforms dao d?ng t? 99,78 - 99,98%. E. coli c hi?u su?t x? l dao ??ng t? 99,78-99,99%. Hi?u su?t lo?i b? Enterococcus kh cao dao ??ng t? 95,17-99,97%. Salmonella b? lo?i b? th?p chi t? 76- 97,8%. M?c d hi?u su?t x? l ca m ? kh cao nh?ng m?m b?nh trong n??c thi ??u ra v?n cao g?p nhi?u l?n so v?i yu c?u x? thi ca n??c th?i cng nghi?p QCVN 40:2011/BTNMT, yu c?u v? n??c cho tr?i ch?n nui heo QCVN 01-14/BNNPTNN v yu c?u x? l n??c th?i cho canh tc nng nghi?p WHO (2006). Do ? c?n nghin c?u thm cng ngh? x? l n??c th?i ??u ra c?a h?m ? biogas ??t yu c?u x? th?i.

T? kha:cng ngh? biogas, tr?ng giun sn. ? y?m kh ph?i tr?n, vi sinh v?t gy b?nh




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