Interactions of resin acids with aerobic and anaerobic biomass—I. Degradation by non-acclimated inocula

Liver, S.; Hall, Eric R.

doi:10.1016/0043-1354(95)00215-4

Cited by 20 publications

(8 citation statements)

References 7 publications

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“…This is illustrated by the fact that biodegradative activity has been found in various samples collected from natural waters (Hemingway and Greaves 1973;Côté and Otis 1989); sediments (Tavendale et al 1997 a, b); biological treatment systems for pulp mill effluents (Rogers and Mahood 1974;Servizi and Gordon 1986;Servizi et al 1986;Taylor et al 1988;Zender et al 1994); activated sludge systems (Hemingway and Greaves 1973;Liver and Hall 1994); upflow anaerobic sludge bed reactors (Patoine et al 1997); and forest, agricultural, and Arctic soils (Biellmann and Wennig 1971;Mohn et al 132 Table 1 were isolated from enrichment cultures on mineral media supplemented with resin acids as sole organic substrates. This approach facilitated isolation of microorganisms both degrading and growing on resin acids, but excluded those transforming but not growing on resin acids as sole substrate.…”

Section: The Ecology and Diversity Of Resin-acid-degrading Bacteriamentioning

confidence: 96%

Recent advances in understanding resin acid biodegradation: microbial diversity and metabolism

Martin¹,

Yu²,

Mohn³

1999

Archives of Microbiology

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Resin acids are tricyclic diterpenoids that are found in the oleoresin of coniferous trees. Resin-acid-degrading microorganisms are ubiquitous in the environment. The bacterial isolates that grow on resin acids as sole organic substrates are physiologically and phylogenetically diverse, and include psychrotolerant, mesophilic, and thermophilic bacteria. Recent studies of the biodegradation of resin acids by these organisms have demonstrated that in gram-negative bacteria, distinct biochemical pathways exist for the degradation of abietane- and pimerane-type resin acids. One of these organisms, Pseudomonas abietaniphila BKME-9, harbors a convergent pathway that channels the nonaromatic abietanes and dehydroabietic acid into 7-oxodehydroabietic acid. This dioxygenolytic pathway is encoded by the recently cloned and sequenced dit gene cluster. The dit cluster encodes the ferredoxin and the alpha- and beta-subunits of a new class of ring-hydroxylating dioxygenases as well as an extradiol ring-cleavage dioxygenase. Although it was previously thought that resin acids are very recalcitrant under anoxic conditions, recent investigations have demonstrated that they are partially metabolized under anoxic conditions by undefined microorganisms. The anaerobic degradation of resin acids principally generates aromatized and decarboxylated products (such as retene) that are thought to persist in the environment.

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Section: The Ecology and Diversity Of Resin-acid-degrading Bacteriamentioning

confidence: 96%

Recent advances in understanding resin acid biodegradation: microbial diversity and metabolism

Martin¹,

Yu²,

Mohn³

1999

Archives of Microbiology

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“…Toxicity evaluations of treated effluents show that an important fraction of the acute toxicity is derived from organic compounds such as resin compounds (Liver and Hall 1996), chlorinated phenolics (Cook and Sikes 1990;Vidal et al 2001) and tannins (Field et al 1989) as well as inorganic compounds, such as metals. Even when most of the transition metals are precipitated during the process as dregs into green liquor , sodium, calcium, magnesium, potassium, iron, copper and zinc have been detected in the effluent Eklund et al 2002).…”

mentioning

confidence: 99%

Characterization of E1 Kraft Mill Effluent by Toxicity Identification Evaluation Methodology

Reyes

Chamorro

Yeber

et al. 2008

Water Air Soil Pollut

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In order to recover and reuse water in the Kraft mill process, evaluation of separate streams is required to identify toxic compounds or microcontaminants. The stage E1 Kraft effluent, corresponding to the first extraction step of the bleaching Kraft mill process, provides the main toxic compounds found in the final process effluent. This paper uses the toxicity identification evaluation (TIE) procedure for the physicochemical and ecotoxicological characterization of the E1 Kraft effluent. To distinguish the most important toxic compounds, a physicochemical characterization and Phase I of the TIE procedure were performed. The acute toxic effect of the E1 Kraft effluent and treated fraction was performed on Daphnia magna. Results show that untreated E1 Kraft effluent exerts an acute toxic effect on D. magna (24 h LC 50 =27.6%), where the E1 Kraft effluent is characterized by pH 10.5, chemical organic demand (COD) 1,348.8 mg/l, and biological organic demand (BOD 5 ) 397.5 mg/l, while total phenolic compounds and color are 853.7 mg/l and 0.204 1× 1 cm, respectively. Additionally, Cu +2 (0.51 mg/l) and Fe +2 (0.64 mg/l) were detected. With respect to different treatments, our results indicate that activated carbon, anionic and cationic exchange treatments were able to reduce more that 45% of E1 Kraft effluent's acute toxicity and that the ethylenediaminetetraacetic acid treatment was able to reduce the E1 Kraft effluent's acute toxicity to around 75% and the Cu +2 concentration to 0.019 mg/l. Moreover, specific analysis of heavy metals and organic compounds by GC-MS show that the main compound responsible for the toxicity was Cu +2 , whose tolerance level on D. magna of the 0.12 mg/l.

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“…The first flocculation treatment may be omitted in the new process, provided that (1) the organisms used for the bio-treatment can tolerate the wood extractives in the APMP effluent, and (2) the effectiveness of the post-flocculation could be improved. It has been reported that aerobic organisms, such as white rot fungi, are less sensitive than anaerobic organisms to wood extractives (Liver and Hall, 1996;Lo et al, 1991). Gao used white rot fungi to treat a raw chemi-thermo mechanical pulping (CTMP) effluent without pre-flocculation and found that the COD and color were removed by 59.0% and 47.5%, respectively, with a 5-day treatment (Gao et al, 2001).…”

Section: Introductionmentioning

confidence: 98%

Treatment of APMP pulping effluent based on aerobic fermentation with Aspergillus niger and post-coagulation/flocculation

Liu¹,

He²,

Hui-ren³

et al. 2011

Bioresource Technology

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Interactions of resin acids with aerobic and anaerobic biomass—I. Degradation by non-acclimated inocula

Cited by 20 publications

References 7 publications

Recent advances in understanding resin acid biodegradation: microbial diversity and metabolism

Recent advances in understanding resin acid biodegradation: microbial diversity and metabolism

Characterization of E1 Kraft Mill Effluent by Toxicity Identification Evaluation Methodology

Treatment of APMP pulping effluent based on aerobic fermentation with Aspergillus niger and post-coagulation/flocculation

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