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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

ENHANCING BIOGAS PRODUCTION BY SUPPLEMENTING RICE STRAW

Journal of Science and Technology 52 (3A) (2014) 294-301

Tc gi?: Tr?n S? Nam, V Th? V?nh, Nguy?n H?u Chi?m, Nguy?n V Chu Ngn, L Hong Vi?t, Kjeld Ingvorsen

Thng tin chung:

Title:

Enhancing biogas production by supplementing rice straw

T? kha:

Kh sinh h?c, r?m, phn heo, t? l? ph?i tr?n, m? ? y?m kh

Keywords:

biogas, rice straw, pig manure, mixing ratio, batch anaerobic digestion.

ABSTRACT:

The study was conducted in batch anaerobic digesters of 21 L in lab conditions for 60 days. The mixing ratios of rice straw and pig manure were 100 % of pig manure, 20 % of straw + 80 % of pig manure, 40 % of straw + 60 % of pig manure, 50 % of straw + 50 % of pig manure, 60 % of straw + 40 % of pig manure, 80 % of straw + 20 % of pig manure, and 100 % of straw. These experiments were arranged randomly in batch anaerobic reactors with the volume of 21 liters; each mixing ratio was repeated five times. The results showed that rice straw has a high potential of enhancing biogas production due to mixing with pig manure. Mixing ratios of rice straw and pig manure at 50 % and 60 % had highest gas yield (846,6 and 841,8 L/kg vs degraded), which were not different from other mixing ratios except in the ratios of 100 % of straw and 100 % of pig manure (P < 0.05). Supplementing rice straw could enhance the rate of methane in biogas. The digestate had a high concentration of total nitrogen and total phosphorus that could be used as organic fertilizer. The research results strongly reveal that supplementing of rice straw could improve the biogas efficiency of real biogas reactors.