Effect of spent cotton stalks on color removal and chemical oxygen demand lowering in olive oil mill wastewater by white rot fungi

1999 ◽  
Vol 44 (6) ◽  
pp. 673-676 ◽  
Author(s):  
S. Kahraman ◽  
O. Ye§ilada
Keyword(s):  
Chemical Oxygen Demand ◽  
Olive Oil ◽  
Oxygen Demand ◽  
White Rot Fungi ◽  
Color Removal ◽  
White Rot ◽  
Olive Oil Mill Wastewater ◽  
Cotton Stalks

The Onset of Lignin-Modifying Enzymes, Decrease of AOX and Color Removal by White-Rot Fungi Grown on Bleach Plant Effluents

1991 ◽  
Vol 24 (3-4) ◽  
pp. 189-198 ◽  
Author(s):  
V. P. Lankinen ◽  
M. M. Inkeröinen ◽  
J. Pellinen ◽  
A. I. Hatakka
Keyword(s):  
Lignin Peroxidase ◽  
Active Form ◽  
White Rot Fungi ◽  
Pulp Mill ◽  
Color Removal ◽  
Effluent Treatment ◽  
White Rot ◽  
White Rot Fungus ◽  
Lignin Peroxidases ◽  
Pulp Mill Effluents

Decrease of adsorbable organic chlorine (AOX) is becoming the most important criterion for the efficiency of pulp mill effluent treatment in the 1990s. Two methods, designated MYCOR and MYCOPOR which utilize the white-rot fungus Phanerochaete chrysosporium have earlier been developed for the color removal of pulp mill effluents, but the processes have also a capacity to decrease the amount of chlorinated organic compounds. Lignin peroxidases (ligninases) produced by P. chrvsosporium may dechlorinate chlorinated phenols. In this work possibilities to use selected white-rot fungi in the treatment of E1-stage bleach plant effluent were studied. Phlebia radiata. Phanerochaete chrvsosporium and Merulius (Phlebia) tremellosus were compared in shake flasks for their ability to produce laccase, lignin peroxidase(s) and manganese-dependent peroxidase(s) and to remove color from a medium containing effluent. Softwood bleaching effluents were treated by carrier-immobilized P. radiata in 2 1 bioreactors and a 10 1 BiostatR -fermentor. Dechlorination was followed using Cl ion and AOX determinations. All fungi removed the color of the effluent. In P. radiata cultivations AOX decrease was ca. 4 mg l−1 in one day. Apparent lignin peroxidase activities as determined by veratryl alcohol oxidation method were negligible or zero in a medium with AOX content of ca. 60 mg l−1, prepared using about 20 % (v/v) of softwood effluent. However, the purification of extracellular enzymes implied that large amounts of lignin peroxidases were present in the medium and, after the purification, in active form. Enzyme proteins were separated using anion exchange chromatography, and they were further characterized by electrophoresis (SDS-PAGE) to reveal the kind of enzymes that were present during AOX decrease and color removal. The most characteristic lignin peroxidase isoenzymes in effluent media were LiP2 and LiP3.

scholarly journals Relationship between cultivation mode of white rot fungi and their efficiency for olive oil mill wastewaters treatment

2008 ◽  
Vol 11 (4) ◽  
pp. 0-0 ◽  
Author(s):  
Sanae Mdaghri Alaoui ◽  
Mohamed Merzouki ◽  
Michel J. Penninckx ◽  
Mohamed Benlemlih
Keyword(s):  
Olive Oil ◽  
White Rot Fungi ◽  
White Rot ◽  
Cultivation Mode ◽  
Wastewaters Treatment

Bioremediation of a wine distillery wastewater using white rot fungi and the subsequent production of laccase

2007 ◽  
Vol 56 (2) ◽  
pp. 179-186 ◽  
Author(s):  
P.J. Strong ◽  
J.E. Burgess
Keyword(s):  
Biological Treatment ◽  
Oxygen Demand ◽  
White Rot Fungi ◽  
White Rot ◽  
White Rot Fungus ◽  
Laccase Production ◽  
Total Phenolic ◽  
Pycnoporus Cinnabarinus ◽  
Distillery Wastewater

The aim of this work was to ascertain whether a submerged culture of a white rot fungus could be used to treat distillery wastewater, and whether the compounds present in the wastewater would stimulate laccase production. Trametes pubescens MB 89, Ceriporiopsissubvermispora, Pycnoporus cinnabarinus and UD4 were screened for their ability for the bioremediation of a raw, untreated distillery wastewater as well as distillery wastewater that had been pretreated by polyvinylpolypyrrolidone. Suitability of each strain was measured as a function of decreasing the chemical oxygen demand (COD) and total phenolic compounds concentration and the colour of the wastewater, while simultaneously producing laccase in high titres. After screening, T. pubescens MB 89 was used further in flask cultures and attained 79±1.1% COD removal, 80±4.6% total phenols removal, 71±1.6% decrease in colour at an absorbance of 500 nm and increased the pH from 5.3 to near-neutral. Laccase activity in flask cultures peaked at 4,644±228 units/l, while the activity in a 50 l bubble lift reactor peaked at 12,966±71 units/l. Trametes pubescens MB 89 greatly improved the quality of a wastewater known for toxicity towards biological treatment systems, while simultaneously producing an industrially relevant enzyme.

scholarly journals New Insights on Protein Recovery from Olive Oil Mill Wastewater through Bioconversion with Edible Filamentous Fungi

Processes ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1210 ◽  
Author(s):  
Taner Sar ◽  
Murat Ozturk ◽  
Mohammad J. Taherzadeh ◽  
Jorge A. Ferreira
Keyword(s):  
Olive Oil ◽  
Protein Content ◽  
Filamentous Fungi ◽  
Fungal Biomass ◽  
Oxygen Demand ◽  
Nitrogen Addition ◽  
Olive Oil Mill Wastewater ◽  
Untreated Wastewater ◽  
Olive Oil Mills ◽  
Edible Filamentous Fungi

Olive oil mills represent an important sector in the Mediterranean Sea Basin but also an environmental hazard due to untreated wastewater. Recovery of nutrients from olive oil mill wastewater (OMWW) as protein-rich microbial biomass can produce novel feed and reduce its chemical oxygen demand; however, low-protein containing products have been reported. New strategies leading to higher protein-containing fungal biomass could renew the research interest on bioconversion for pollution mitigation of OMWW. In this work, through cultivation of edible filamentous fungi (Aspergillus oryzae, Neurospora intermedia, and Rhizopus delemar), a link between the protein content in the originated fungal biomass, and the addition of nitrogen and medium dilution was established. Addition of nitrogen in the form of NaNO3 reduced the cultivation time from 96 h to 48 h while achieving a similar biomass mass concentration of 8.43 g/L and increased biomass protein content, from w = 15.9% to w = 29.5%. Nitrogen addition and dilution of OMWW, and consequent reduction of suspended solids, led to an increase in the protein content to up to w = 44.9%. To the best of our knowledge, the protein contents achieved are the highest reported to date and can open new research avenues towards bioconversion of OMWW using edible filamentous fungi.

scholarly journals Removal of Color and Chemical Oxygen Demand Using a Coupled Coagulation-Electrocoagulation-Ozone Treatment of Industrial Wastewater that Contains Offset Printing Dyes

2017 ◽  
Vol 58 (3) ◽  
Author(s):  
Gabriela Roa-Morales ◽  
Carlos Barrera-Díaz ◽  
Patricia Balderas-Hernández ◽  
Francisco Zaldumbide-Ortiz ◽  
Horacio Reyes Perez ◽  
...  
Keyword(s):  
Chemical Oxygen Demand ◽  
Industrial Wastewater ◽  
Oxygen Demand ◽  
Color Removal ◽  
Sequential Treatment ◽  
Ozone Treatment ◽  
Optimal Conditions ◽  
Offset Printing ◽  
Printing Processes

Industrial offset printing processes generate wastewater with highly colored obtaining values of 5x10<sup>6</sup> Pt-Co units and great values of chemical oxygen demand (COD) 5.3x10<sup>-5</sup> mg L<sup>-1</sup>. Thus, conventional technologies such as biologicals treatment fail in reaching the discharge limits. In this research, a sequential treatment was applied: coagulation with aluminum hydroxychloride (AHC), electrocoagulation with Al anodes and finally ozonation. Optimal conditions are found when adding 20 mg L<sup>-1</sup> AHC, followed by electrocoagulation at 4 A for 50 min, and finally alkaline ozonation for 15 min, resulting in an overall color removal of 99.99% color and 99.35% COD.

scholarly journals Bioremediation of Indigosol Blue 04B Batik Effluent by Indigenous Fungal Isolates, Aspergillus spp.

Omni-Akuatika ◽  
2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Ratna Stia Dewi ◽  
Rina Sri Kasiamdari ◽  
Erni Martani ◽  
Yekti Asih Purwestri
Keyword(s):  
Culture Media ◽  
Electrical Conductance ◽  
Oxygen Demand ◽  
White Rot Fungi ◽  
Positive Control ◽  
White Rot ◽  
Fungal Treatment ◽  
Before And After ◽  
Standard Values ◽  
Aspergillus Sp

Effluent from the local batik home industry is a serious problem, because the effluent discharge generated is spread in different places. Untreated effluent can cause environmental pollution, such as in groundwater reservoirs,because most is discharged into rivers. The aim of this research was to evaluate the bioremediation potential of indigenous fungi in liquid culture media with Indigosol Blue 04B (IB) batik effluent. The fungi isolates tested were Aspergillus sp. 1, Aspergillus sp. 2 and Aspergillus sp. 3, isolated from dye effluent soil and batik effluent, and compared to white rot fungi (Phanerochaete chrysosporium) as a positive control.   The physiochemical properties of IB batik effluent before and after fungal treatment were investigated. All of these parameters before the fungal treatment were above the recommended standard values based on the Governor regulation of Yogyakarta Special Region No. 7/2010. The level of biochemical oxygen demand (BOD), chemical oxygen demand (COD), total dissolved solids (TDS), total suspended solids (TSS), and electrical conductance (EC) was reduce by Aspergillus spp. The highest percentage reduction was achieved by Aspergillus sp. 3, namely 88.34% BOD, 89.11% COD, 75.77% TSS, 85.85% TDS and 71.21% EC, after 3 days of incubation. These results show that the positive control isolate had the lowest value. The study confirms the ability of indigenous fungi isolates in the remediation of IB batik effluent and their potential for future analysis in the treatment of all types of batik effluent.

scholarly journals ADSORPTION OF PHENOLS FROM OLIVE OIL MILL WASTEWATER AS WELL AS N AND P FROM A SIMULATED CITY WASTEWATER LIQUID ON ACTIVATED GREEK LIGNITES

2017 ◽  
Vol 43 (5) ◽  
pp. 2294
Author(s):  
C. Papanicolaou ◽  
G. Triantafyllou ◽  
Ν. Pasadakis ◽  
Α,Ε. Foscolos
Keyword(s):  
Olive Oil ◽  
Surface Area ◽  
Oxygen Demand ◽  
Medium Size ◽  
Nitrogen And Phosphorus ◽  
Olive Oil Mill Wastewater ◽  
Cod Reduction ◽  
Economic Exploitation ◽  
Activated Coal ◽  
Adsorption Of Nitrogen

The results show that surface area of activated coal samples increased substantially and in some more than the commercial one. The increase in surface area was higher the higher the carbon content and the lower the ash content. The adsorption capacity of phenols and the decrease of COD (Chemical Oxygen Demand) in olive oil mil wastewater disposals were measured in selected samples as well as the decrease of COD and the adsorption of nitrogen and phosphorus from a solution which simulates city waste disposals were measured in 14 selected Greek lignites and 1 commercially available activated lignite sample (HOK). The maximum recorded adsorption of phenol was 30.6 mg/g of activated lignite while the commercial one (HOK) adsorbed 16 mg/g of activated lignite. The COD reduction was 1262 mg of COD/g of activated lignite while in the commercial one the reduction was 439 mg of COD/g of activated lignite. The maximum adsorption of N and P from the simulated city waste liquid was 6.41 mg/g of activated lignite and 2.52 mg/g of activated lignite, respectively. while the commercial one (HOK) adsorbed 2.84 mg/g and 2.42 mg/g, respectively. Finally, the COD reduction was 50.28 mg/g of activatedlignite and 34.92 mg/g for the commercially one (HOK). The results show that Greek activated lignites can be used successfully for cleaning industrial and city wastes. These findings open the door for the economic exploitation of small to medium size lignite deposits in Greece, which are widespread in Greece.

scholarly journals Performance of Ceriporiopsis sp. in the Treatment of Black Liquor Wastewater

2016 ◽  
Vol 17 (2) ◽  
pp. 58 ◽  
Author(s):  
Ajeng Arum Sari
Keyword(s):  
Aquatic Ecosystems ◽  
Black Liquor ◽  
Oxygen Demand ◽  
White Rot Fungi ◽  
Dry Weight ◽  
Additional Treatment ◽  
White Rot ◽  
Empty Fruit Bunches ◽  
Potential Alternative ◽  
Different Strains

High amounts of black liquor wastewater are generated from bioethanol production by using oil palm empty fruit bunches. It contains an alkaline solution (NaOH), so it is quite toxic for aquatic ecosystems if discharged directly into waters. Black liquor has been treated by coagulation method, and it still needs additional treatment. This study aimed to determine degradation of black liquor wastewater by selected white-rot fungi (WRF). Five different strains of WRF have been tested for their ability to decolorize black liquor on agar and liquid media. Out of five fungi studied, two fungi, Ceriporiopsis sp. and Phanerochaete chrysosporium, showed the capacity to grow more than 50% on agar medium. In liquid medium, the percentage of decolorization of 15,000 ppm coagulated and diluted black liquor ranged from 70 to 89% at 30 days depending on the fungal strain. Ceriporiopsis sp. showed the better ability to decolorize black liquor than P. chrysosporium. The performance of Ceriporiopsis sp was evaluated regarding decolorization of black liquor, chemical oxygen demand (COD), and mycelial dry weight both in coagulated black liquor and original black liquor. The color of original and coagulated black liquor can be decolorized up to 90.13 and 86.85%, respectively. COD in original and coagulated black liquor was reduced up to 70.17 and 40.09%, respectively. The presence of coagulant Poly Aluminum Chloride (PAC) inhibited degradation of black liquor by fungus. The result demonstrated that Ceriporiopsis sp has a potential alternative to treat black liquor wastewater. 

Olive Oil Mill Wastewater Treatment by the Electro-Fenton Process

2006 ◽  
Vol 3 (5) ◽  
pp. 345 ◽  
Author(s):  
Nizar Bellakhal ◽  
Mehmet A. Oturan ◽  
Nihal Oturan ◽  
Mohamed Dachraoui
Keyword(s):  
Wastewater Treatment ◽  
Olive Oil ◽  
Model Compound ◽  
Oxidation Process ◽  
Oxygen Demand ◽  
Fenton Process ◽  
Colour Intensity ◽  
Olive Oil Mill Wastewater ◽  
Chemical Reagents ◽  
Mediterranean Countries

Environmental Context. The combination of the Fenton’s reagent with electrochemistry (the electro-Fenton process) represents an efficient method for wastewater treatment. This study describes the use of this process to clean olive oil mill wastewater, which is a real environmental problem in Mediterranean countries. Contrary to the conventional methods which reduce the pollution by removing the pollutants from the wastewater, the electro-Fenton process is shown to fully destroy (mineralize) olive oil mill wastes in water without previous extraction and without addition of chemical reagents. Abstract. Treatment of olive oil mill wastewater is one of the most important environmental problems for Mediterranean countries. This wastewater contains many organic compounds like polyphenols, which are very difficult to treat by classical techniques. An advanced electrochemical oxidation process, the electro-Fenton process, has been used as a way of removing chemical oxygen demand and colour intensity from olive oil mill wastewater. Vanillic acid, which has been selected as a model compound, and olive oil mill wastewater have been completely mineralized by the electro-Fenton process with a carbon felt cathode, using Fe2+ ions as the catalyst.

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