TITLE

Toxicity of pH, Ammonia and Volatile Fatty Acids on Hydrogenotrophic Methanogen-Enriched Sludge

AUTHOR(S)
Jianzheng Li; Yupeng Zhang; Chong Liu; Zeyu Tang
PUB. DATE
July 2014
SOURCE
Advanced Materials Research;2014, Vol. 955-959, p527
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The activities of methanogen are easily affected by inhibitory substances and lead to anaerobic digestion failure. To investigate inhibitory effects on methanogenesis of a methanogen-enriched sludge, pH, volatile fatty acids (such as acetic acid, propionic acid and butyric acid), and ammonia were used as inhibitory factors and a L16(45) orthogonal table was employed to design batch experiments. The result of variance analyses shows that pH has the greatest impact on the methanogenesis of the enriched culture. The impact of butyrate, NH3, acetate and propionate was decreased in order. DGGE finger-print shows that there was only one methanogen in the inoculum sludge.
ACCESSION #
99557115

 

Related Articles

  • Online estimation of VFA, alkalinity and bicarbonate concentrations by electrical conductivity measurement during anaerobic fermentation. Aceves-Lara, Cesar-Arturo; Latrille, Eric; Conte, T.; Steyer, Jean-Philippe // Water Science & Technology;2012, Vol. 65 Issue 7, p1281 

    This paper describes the use of electrical conductivity for measurement of volatile fatty acids (VFA), alkalinity and bicarbonate concentrations, during the anaerobic fermentation process. Two anaerobic continuous processes were studied: the first was a laboratory reactor for hydrogen production...

  • 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....

  • Online headspace chromatographic method for measuring VFA in biogas reactor. Boe, K.; Batstone, D. J.; Angelidaki, I. // Water Science & Technology;2005, Vol. 52 Issue 1/2, p473 

    A headspace chromatographic method has been applied to measure volatile fatty acids in anaerobic digesters using gas phase extraction at pH less than 2 and temperature higher than 65 °C. The concentration of volatile fatty acids in liquid and gas phase can be correlated in the form of Henry's...

  • Organic material solubilization of domestic primary sludge in anaerobic digestion at controlled pH. Gomec, C. Yangin; Speece, R. E. // Water Science & Technology;2003, Vol. 48 Issue 4, p195 

    The role of the pH in the anaerobic digestion of domestic primary sludge at mesophilic temperature was evaluated. Since solubilization of organic materials is seriously affected by pH, much research has been performed for the evaluation of significant pH influence on the production of soluble...

  • Improved Anaerobic Acidification of Unscreened Dairy Manure. Yılmaz, Vedat; Demirer, Göksel N. // Environmental Engineering Science;Apr2008, Vol. 25 Issue 3, p309 

    Even though several aspects of two-phase configuration might be very significant for efficient anaerobic digestion (AD) of dairy manure, its application has very been limited. Two sets of experiments daily-fed continuously mixed acidogenic anaerobic reactors with no recycle were conducted to...

  • Acute and Postexposure Effects of Ammonia Toxicity on Juvenile Barramundi ( Lates calcarifer [Bloch]). Økelsrud, Asle; Pearson, Richard // Archives of Environmental Contamination & Toxicology;Nov2007, Vol. 53 Issue 4, p624 

    Lethal and sublethal effects of ammonia toxicity to juvenile barramundi ( Lates calcarifer) were investigated under laboratory conditions following the OECD guidelines for testing of chemicals. Acute toxicity was tested in a static nonrenewal system at pH 9.0 and temperature around 29°C. The...

  • Toxicity of Chlorine and Other Chlorinated Compounds to Some Australian Aquatic Organisms. Manning, T. M.; Wilson, S. P.; Chapman, J. C. // Bulletin of Environmental Contamination & Toxicology;Jun96, Vol. 56 Issue 6, p971 

    The article discusses the study regarding the toxicity of chlorine and other chlorinated compounds to some aquatic organisms, in Australia. The study was intended to obtain data on Australian organisms to support development of appropriate controls, which included an evaluation of the toxicity...

  • Chemical equilibrium model of struvite precipitation from anaerobic digester effluents. TÜRKER, Mustafa; ÇELEN, İpek // Turkish Journal of Engineering & Environmental Sciences;2011, Vol. 35 Issue 1, p39 

    This project investigated the usefulness of a chemical equilibrium model to predict the extent of ammonia removal as struvite from the effluent of anaerobic digester treating molasses-based industrial wastewater. The chemical equilibrium model was established by taking into account the activity...

  • The role of pH in the organic material solubilization of domestic sludge in anaerobic digestion. Gomec, C. Yangin; Speece, R. E. // Water Science & Technology;2003, Vol. 48 Issue 3, p143 

    The effect of pH on anaerobic solubilization of domestic primary sludge and activated sludge was investigated and compared. Anaerobic solubilization was carried out in continuously stirred anaerobic reactors at mesophilic temperature (35°C) and pH was fixed at 6.5 (pH-controlled). Many...

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