TITLE

Ammonia–methane two-stage anaerobic digestion of dehydrated waste-activated sludge

AUTHOR(S)
Nakashimada, Yutaka; Ohshima, Yasutaka; Minami, Hisao; Yabu, Hironori; Namba, Yuzaburo; Nishio, Naomichi
PUB. DATE
July 2008
SOURCE
Applied Microbiology & Biotechnology;Jul2008, Vol. 79 Issue 6, p1061
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The study investigated methane production from dehydrated waste-activated sludge (DWAS) with approximately 80% water content under thermophilic conditions. The repeated batch-wise treatment of DWAS using methanogenic sludge unacclimated to high concentrations of ammonia, increased the ammonia production up to 7,600 mg N per kilogram total wet sludge of total ammonia concentration, and stopped the methane production. Investigation revealed that the loading ratio of DWAS for methanogenic sludge influences anaerobic digestion. Methane production significantly decreased and ammonia concentration increased with the increase in loading ratio of DWAS. Since the semicontinuous culture revealed that approximately 50% of organic nitrogen in DWAS converted to ammonia at sludge retention time (SRT) after 4 days at 37°C and 1.33 days at 55°C, the previous stripping of the ammonia produced from DWAS was carried out. The stripping of ammonia increased methane production significantly. This ammonia–methane two-stage anaerobic digestion demonstrated a successful methane production at SRT 20 days in the semicontinuous operation using a laboratory-scale reactor system.
ACCESSION #
32762676

 

Related Articles

  • Efficiency of the anaerobic digestion of amine wastes. Wang, Shuai; Hovland, Jon; Bakke, Rune // Biotechnology Letters;Dec2013, Vol. 35 Issue 12, p2051 

    Laboratory-scale anaerobic degradation of monoethanolamine waste (MEAw) with co-substrate organics was conducted at room temperature and organic loading rates from 0.19 to 5.03 kg COD/m day for 486 days in a hybrid digester. 90 % feed COD conversion to methane was obtained at the lower loads and...

  • Thermophilic anaerobic digestion of sewage sludge with high solids content. Feng Wang; Taira Hidaka; Tsutomu Uchida; Jun Tsumori // Water Science & Technology;2014, Vol. 69 Issue 9, p1949 

    The treatment performance of thermophilic anaerobic digestion (AD) of sewage sludge with high solids content was investigated with two laboratory-scale thermophilic anaerobic reactors (R1 and R2) with a feeding of pre-centrifuged sewage sludge. Reactor R1 was fed with sludge of 3.7% total solids...

  • Dry anaerobic ammonia—methane production from chicken manure. Abouelenien, Fatma; Kitamura, Yoshiaki; Nishio, Naomichi; Nakashimada, Yutaka // Applied Microbiology & Biotechnology;Mar2009, Vol. 82 Issue 4, p757 

    The effect of temperature on production of ammonia during dry anaerobic fermentation of chicken manure (CM), inoculated with thermophilic methanogenic sludge, was investigated in a batch condition for 8 days. Incubation temperature did not have a significant effect on the production of ammonia....

  • Anaerobic digestion of stillage fractions - estimation of the potential for energy recovery in bioethanol plants. Drosg, B.; Fuchs, W.; Meixner, K.; Waltenberger, R.; Kirchmayr, R.; Braun, R.; Bochmann, G. // Water Science & Technology;2013, Vol. 67 Issue 3, p494 

    Stillage processing can require more than one third of the thermal energy demand of a dry-grind bioethanol production plant. Therefore, for every stillage fraction occurring in stillage processing the potential of energy recovery by anaerobic digestion (AD) was estimated. In the case of whole...

  • Oxidative and thermo-oxidative co-treatment with anaerobic digestion of excess municipal sludge. Rivero, J. A. Cacho; Madhavan, N.; Suidan, M. T.; Ginestet, P.; Audic, J.-M. // Water Science & Technology;2005, Vol. 52 Issue 1/2, p237 

    The effect of oxidative and thermo-oxidative co-treatment of excess municipal sludge was investigated. A mixture of primary and waste activated sludge was anaerobically treated using two different configurations: i) two stages and ii) a single stage with recycling. Oxidative or thermo-oxidative...

  • Nitrogen Removal in a Phase-Separated Up-Flow Anaerobic Sludge Blanket Reactor Combined with Biological Nutrient Removal. Park, Sang Min; Park, Noh Back; Seo, Tae Kyeong; Jun, Hang Bae // Environmental Engineering Science;Feb2009, Vol. 26 Issue 2, p397 

    Nitrogen removal and methane production from animal wastewater were investigated in two-phase anaerobic digestion (TPAD) coupled with biological nutrient removal (BNR) process at 35°C. Methane production rate was approximately 0.7 L/L per day at organic loading rate (OLR) of 3.9 gTCOD/L per...

  • Occurrence and reactivation of viable but non-culturable E. coli in sewage sludge after mesophilic and thermophilic anaerobic digestion. Fu, Bo; Jiang, Qian; Liu, Hongbo; Liu, He // Biotechnology Letters;Feb2014, Vol. 36 Issue 2, p273 

    The occurrence and reactivation of viable but non-culturable (VBNC) Escherichia coli after different anaerobic digestions and the subsequent dewatering and storage were evaluated and compared. Culturable E. coli in digested sludge increased by two to four orders of magnitudes immediately after...

  • Two-Stage Thermophilic Anaerobic—Aerobic Digestion of Waste-Activated Sludge. Rosš, M.; Zupančič, G.D. // Environmental Engineering Science;Sep2004, Vol. 21 Issue 5, p617 

    High-rate two-stage thermophilic anaerobic–aerobic sludge digestion was studied and compared to the recent published research. The studied process is, in fact, a combination of two single-stage anaerobic and aerobic processes in the most favorable way possible. The goal was to combine the...

  • Nitrogen removal from sludge water with SBR process: start-up of a full-scale plant in the municipal wastewater treatment plant at Ingolstadt, Germany. Vallés-Morales, M. J.; Mendoza-Roca, J. A.; Bes-Piá, A.; Iborra-Clar, A. // Water Science & Technology;2004, Vol. 50 Issue 10, p51 

    The sludge water obtained from the dewatering processes following anaerobic sludge digestion contains high levels of ammonia. This sludge water is generally returned to the beginning of the waste water treatment plant process, thereby significantly increasing the nitrogen load on the biological...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics