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Anaerobic co-digestion of dairy cow manure and high concentrated food processing waste

Samo za registrovane korisnike
2013
Autori
Yamashiro, Takaki
Lateef, Suraju A.
Ying, Chun
Beneragama, Nilmini
Lukić, Miloš
Masahiro, Iwasaki
Ihara, Ikko
Nishida, Takehiro
Umetsu, Kazutaka
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentu
Apstrakt
Anaerobic co-digestion of dairy manure (DM) and concentrated food processing wastes (FPW) under thermophilic (55 A degrees C) and mesophilic (35 A degrees C) temperatures, and fertilizer value of the effluent were investigated in this study. Two types of influent feedstock were utilized: 100 % DM and a 7:3 mixture (wet weight basis) of DM and FPW. The contents of the FPW, as feedstock were 3:3:3:1 mixture of cheese whey, animal blood, used cooking oil and residue of fried potato. Four continuous digestion experiments were carried out in 10 L digesters. Co-digestion under thermophilic temperature increased methane production per digester volume. However, co-digestion at 35 A degrees C was inhibited. Total Kjeldahl nitrogen (N) recovered after digestion ranged from 73.1 to 91.9 %, while recoveries of ammonium nitrogen (NH4-N) exceeded 100 %. The high recovery of NH4-N was attributed to mineralization of influent organic N. The mixture of DM and FPW showed greater recoveries of NH4-N afte...r digestion compared to DM only, reflecting its greater organic N degradability. The ratios of extractable to total calcium, phosphorus and magnesium were slightly reduced after digestion. These results indicate that co-digestion of DM and FPW under thermophilic temperature enhances methane production and offers additional benefit of organic fertilizer creation.

Ključne reči:
Dairy manure / Food processing waste / Anaerobic co-digestion / Methane / Organic fertilizer
Izvor:
Journal of Material Cycles and Waste Management, 2013, 15, 4, 539-547
Izdavač:
  • Springer, New York

DOI: 10.1007/s10163-012-0110-9

ISSN: 1438-4957

WoS: 000325144600016

Scopus: 2-s2.0-84884904288
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URI
http://r.istocar.bg.ac.rs/handle/123456789/380
Kolekcije
  • Radovi istraživača / Researchers' publications
Institucija/grupa
RIStocar

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