發(fā)布時間：2018-03-30 10:52

  本文選題：菌種組合　切入點：發(fā)酵殘余物　出處：《環(huán)境工程學(xué)報》2017年12期

【摘要】：適宜菌劑組合對于初始電導(dǎo)率(Electronic conductivity,EC)較高的發(fā)酵殘余物二次干化腐熟效果具有重要影響。通過在發(fā)酵殘余物(豬場沼渣、城市生活污泥)好氧發(fā)酵過程中添加不同菌種組合,研究堆肥腐熟指標變化,特別是不同形態(tài)氮素指標變化,以期更好提升發(fā)酵殘余物的干化和腐熟程度。結(jié)果表明:F3菌劑組合處理高溫期達16 d,最高溫度為69.5℃,最早進入腐熟階段,全氮損失比例最少,為8.72%;對照組在高溫期(14 d、69.3℃)及全氮損失比例(9.21%)指標上僅低于F3處理組,表明自然堆體存在耐鹽菌種;在促進堆肥腐熟效果方面,霉菌起著關(guān)鍵的作用,堆肥后期酵母菌的存在促進堆體腐熟度的提升;菌種比例和種類的合理設(shè)置對于堆體腐熟度提高的重要性要高于活菌添加量;在堆肥保氮過程中,真菌(霉菌和酵母菌)起著重要作用。F3處理(即芽孢桿菌∶霉菌∶酵母菌=1∶2∶2),是實現(xiàn)發(fā)酵殘余物快速高效堆肥的理想菌劑配方,其他復(fù)配菌種組合保氮效果改良側(cè)重點各不相同。
[Abstract]:The suitable combination of fungicides has an important effect on the secondary drying of fermentation residues with high initial conductivity Electronic conductivity EC.The different combinations of bacteria were added to the aerobic fermentation process of fermentation residues (biogas residue of pig farm, municipal sewage sludge). The changes of maturity index of compost, especially the change of nitrogen index of different forms, were studied in order to improve the drying and maturation degree of fermentation residue. The results showed that the temperature of the treatment was 16 days and the maximum temperature was 69.5 鈩，

本文編號：1685603