TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The wastewater treatment composition additionally comprises a carbohydrate. Preferred Components: The carbohydrate is selected from arabinan, arabinose, cellulose, fructose, galactan, galactose, glucan, glucose, mannan, mannose, sucrose, xylan, and xylose, or wood fiber, wood pulp, or other pulping byproducts. When the carbohydrate is a monosaccharide, then the concentration is 100-400 mg/l; and when the carbohydrate is a polysaccharide, then the concentration is 8000-15000 mg/l. Preferred Method: The treatment is performed under aerobic conditions; and is a batch, semi-continuous or continuous treatment. The treatment is done in cycles in a sequencing batch reactor. The method additionally involves addition of an alkali between cycles. The treatment of the wastewater involves 1-5 cycles of treatments with the wastewater treatment composition, where each cycle involves alternating aerobic and anaerobic treatments. The first treatment is anaerobic. The method additionally involves adding nutrients to the wastewater. The method involves passing the wastewater through wood fibers at anaerobic conditions in a packed biological reactor or column, an artificial wetland, or an anaerobic sequencing batch reactor (AnSR); and passing the wastewater through a mass comprising waste wood fiber from a pulp and paper process, lime, and fly ash. The wastewater is passed through wood fiber at a rate of 0.05-1 liter wastewater/day/kg of wet wood fiber mass. The wastewater is passed through wood fiber together with cellulosic fiber, plastic, powdered or ceramic media. EXAMPLE - A wastewater treatment composition was prepared as follows: Mucor racemosus (fungus) was grown in 110 gram lots on a medium consisting of rice hulls (50 g), bran (50 g) and starch (10 g). To this material was added 50% potato dextrose agar (PDA) (100 ml) for moisture. The material was autoclaved and inoculated with fungal mycelia and spores from pre-grown PDA plates. The incubation was carried out at 25 degrees C for 7-10 days in a humidified growth chamber in 190x 100 mm glass dishes. The culture was removed from the humidified growth chamber and allow to air dry at room temperature for an additional 5-7 days. Final drying was accomplished under reduced pressure in a lyophilizer. The raw material was then subjected to hydration and serial dilution to determine the number of propagules/gram using standard laboratory procedures. The fungus yielded 2x 105 propagules/gram. The obtained dry formulation was tested for wastewater assessment. The results showed that the formulation showed 28% chemical oxygen demand (COD) reduction versus control.