Table 3. Examples of fungi used to treat wood processing wastewaters. Optimal culture condition and the effect of fungal pretreatment are reported.

Effluents

Fungi

Treatment

References

Reactor and medium handling

Parameters

Wood processing wastewaters

Sporotichum pulverulentum (P. chrysosporium)

Batch reactor (25 m3); continuous laboratory fermentor (10 l)

Biomass (5.7 g l-1); Protein (42%); Protein productivity (132 mg l-1); cellulase (0.2 U ml-1); Suspended particles (88%); BOD 73%); COD 52%); feedstuff (rat, pigs and sheep)

Ek and Eriksson (1980); Thomke and Rundgreen (1980)

A. foetidus

Shake-flask; dilution (10%)

Decolorization (90%, 2 d)

Sumathi and Phatak (1999)

C. versicolor;

P. chrysosporium; Pleurotus ostreatus; polyporus versicolor

Shake-flask; immobilization in beads of Ca-alginate gel; dilution (16.7%); co-substrates (sucrose 0.5%, xylose, glucose, glycerol, ethanol)

Decolorization of suspended biomass (60%, 6 d); decolorization of immobilized biomass (80%, 3 d)

Livernoche et al (1980); Marwaha et al. (1998)

P. chrysosporium; Phanerochaete flavido-alba

Shake-flask; co-substrate (glucose); Mn (0.3 mg l-1); culture age

 

Decolorization (88%), LiP (450 nmol min-1 ml-1); MnP (800 nmol min-1 ml-1)

Perez et al. (1997)

P. chrysosporium; Ganoderma australe; Coriolopsis gallica ; Paecilomyces variotii

Shake-flask

P. chrysosporium (decolorization, 50%, 7 d; lignin pyrolisis compounds, 57% reduction;);

G. australe (decolorization, 50%, 7 d; lignin derivated compounds 48% increased );

C. gallica (decolorization, 48%, 7 d; lignin-derivated compounds 77% reduction);

P. variotii (decolorization, 85%, 7 d; lignin-derivated compounds 78% reduction)

Calvo et al. (1995 a b)

T. versicolor

Shake-flask; continuous feeding bioreactor; culture age; dilution 30%); SO4Mn (23 mg l-1); co-substrate (glucose, 0.3%; sucrose; starch; ethanol, carboxymethyl-cellulose; pulp and bagasse pith)

 

Decolorization (90 %, 9 d) Lacc (700 U l-1, 10 d); MnP (25 U l-1, 7 d); phenols (90%); COD (69%)

Manzanares et  al. (1995); Mehna et al. (1995)

Sordaria fimicola; Halosarpheia ratnagiriensis

Shake-flask; pH (4.5; 8.2)

S. fimicola (decolorization,  55%, Lacc (100  nkatal ml-1)); H. ratnagiriensis (decolorization,  85%;  Lacc (100  nkatal ml-1))

Raghukumar et al. (1996)

Ceriporopsis subvermispora; R. oryzae

Shake-flask; co-substrat (glucose, 0.1%; sucrose; lactose; microcrystalline cellulose; carboxymethyl cellulose; xylose; starch; athyl alcool; bagasse pith; cheese whey; prehydrolysate liquor; molasses)

Color (90%); COD (45%); lignin (62%);  AOX (32%);  EOX (36%)

Nagarathnamma et al. (1999); Nagarathnamma and Bajpai (1999)