Treatment of softwood bleacbery effluents by Penicillium camemberti in anaerobic jars

Taseli, BK
Gökçay, Celal Ferdi
Penicillium camemberti was found to be very effective in treating softwood pulp bleaching effluents and chlorinated model compounds like PCP, 2-chlorophenol and trichloroacetic acid. This paper examines the ability of Penicillium camemberti to degrade softwood pulping and bleaching effluents in anaerobic jars. Softwood chlorinated pulping and bleaching effluents inoculated with Penicillium camemberti (20 ml in 25-ml universal tubes) were incubated under anaerobic conditions (oxoid anaerobic jars) at 25 degrees C for up to 20 days. Samples were analyzed for adsorbable organic halogens (AOX), color and total organic carbon (TOC) removals and gas chromatograms of the samples were recorded. 61% AOX, 62% TOC and 57% color removal was obtained with mineral salts as nutrient and 2 g/l acetate as carbon source. It was found to be remarkable that TOC removal was extremely increased from 62% to 81% with the nutrient only, and without any carbon source. There was a slight increase in AOX (from 61% to 63%) and slight one in color (from 57% to 52%). The highest efficiencies, 62% AOX, 81% TOC and 59% color removal, were achieved, when Penicillium camemberti has been added without any nutrient and carbon source.


Treatment of opium alkaloid containing wastewater in sequencing batch reactor (SBR)-Effect of gamma irradiation
Bural, Cavit B.; Demirer, Goksel N.; Kantoglu, Omer; Dilek, Filiz Bengü (Elsevier BV, 2010-04-01)
Aerobic biological treatment of opium alkaloid containing wastewater as well as the effect of gamma irradiation as pre-treatment was investigated. Biodegradability of raw wastewater was assessed in aerobic batch reactors and was found highly biodegradable (83-90% degradation). The effect of irradiation (40 and 140 kGy) on biodegradability was also evaluated in terms of BOD5/COD values and results revealed that irradiation imparted no further enhancement in the biodegradability. Despite the highly biodegrada...
Reducing chlorinated organics, AOX, in the bleachery effluents of a Turkish pulp and paper plant
Yetiş, Ülkü; Gokcay, CF (1996-01-01)
The possibility for reducing the chlorinated organic compounds in the bleacheary effluents of the Turkish pulp and paper industry has been studied. Within the experimental work of this study, three different chlorine dioxide substitutions and three different total chlorine application rates were examined and nine experiments were performed. The AOX formation has been shown to be proportional to the amount of molecular chlorine consumed during delignification, regardless of whether it is from chlorine or chl...
Production of lightweight aerated alkali-activated slag pastes using hydrogen peroxide
Sahin, Murat; Erdoğan, Sinan Turhan; Bayer, Özgür (Elsevier BV, 2018-08-30)
This study investigated the production of lightweight aerated alkali-activated slag pastes (LAAASP) using hydrogen peroxide (H2O2). A mixture of sodium hydroxide and sodium silicate solution was used for the activation of slag. Physical, mechanical, and thermal properties of samples cured under different curing conditions were investigated. Various water-to-slag ratios (W/S) and H2O2 contents were used to explore the expansion mechanism of fresh mixtures and to investigate their effect on apparent density. ...
Identification of electron acceptor properties of Penicillium camemberti used for effective treatment of chlorinated organic compounds
Taseli, BK; Gökçay, Celal Ferdi (2005-01-01)
Two methods described in this paper use respirometric monitoring of the accumulated oxygen uptake rate, following the addition of bleachery effluents to a reactor containing Penicillium camemberti and detection of inorganic chloride removal by a chloride electrode for electron acceptor identification. In the case of respirometric studies, adsorbable organic halogens (AOX) removal was retarded at high acetate concentrations and the metabolism shifted towards aerobic respiration. Contrary to this, aerobic res...
Synthesis of copolymers of methoxy polyethylene glycol acrylate and 2-acrylamido-2-methyl-1-propanesulfonic acid: Its characterization and application as superplasticizer in concrete
Buyukyagci, Arzu; Tuzcu, Goezde; Aras, Leyla (Elsevier BV, 2009-07-01)
Water-soluble copolymers of methoxy polyethylene glycol acrylate (mPEGA) and 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) were synthesized by free radicalic polymerization and evaluated as slump-retaining dispersant for cement particles. The slump-retaining effect of the synthesized copolymers was studied in terms of reaction pH, composition, and molecular weight of mPEG side chains. mPEG grafted copolymers (mPEGA-co-AMPS) were characterized by FTIR, H-1 NMR. In this study, dilute solution viscometry...
Citation Formats
B. Taseli and C. F. Gökçay, “Treatment of softwood bleacbery effluents by Penicillium camemberti in anaerobic jars,” FRESENIUS ENVIRONMENTAL BULLETIN, pp. 545–549, 2005, Accessed: 00, 2020. [Online]. Available: