Study on the Effect of Corn Cob Dosage on Acid Production in Anaerobic Fermentation of Cow Manure and Its Potential as Denitrification Carbon Source
The study investigated the acid-producing performance of anaerobic fermentation of cow manure with different addition levels of corn cobs and their potential as carbon sources for denitrification.The results showed that the fermentation solution with 10％mass fraction of corn cobs exhibited the best acid production,with volatile fatty acids(VFAs)reaching 2 060 mg/L and an average of 1 610 mg/L.Furthermore,the fer-mentation solution with 10％corn cobs significantly increased carbon release,with an average of 6 273.49 mg/L over the course of 7 days,which was much higher than the control group.By comparing different con-ditions of C/N ratios,it was found that the fermentation solution with 10％corn cobs had a higher C/N value of 68.76,making it suitable as a carbon source for denitrification and displaying good denitrification potential.This study provided a reference for optimizing the conditions of carbon sources for denitrification.
万方数据
维普
