复合微生物菌剂在猪粪无害化处理中的应用

为了研究微生物菌剂对粪便恶臭组分及微生物菌群的影响,选取猪粪和玉米秸秆作为堆肥原料进行28 d的堆肥试验.试验分为5组,A、B和C组分别用玉米秸秆调节堆体水分为40％、50％和60％,D和E组不加玉米秸秆,A、B、C和D组分别接种微生物菌剂,E组不添加菌剂.结果 显示,B组堆体的高温持续时间最长,粪便腐熟效果最好.与E...

Application of compound microbial preparation in innocuous treatment of pig manure

In order to determine the effects of compound microbial preparation on fecal stench components and microbiota,samples of pig manure and corn straw were used as compost raw materials for a 28-day fermentation experiment.The experiment consisted of 5 groups:Groups A,B and Group C were treated with corn straw to adjust the water content to 40%,50% and 60%,respectively;Groups D and E were treated without corn straw.Groups A,B,C and D were then added with a compound microbial preparation,respectively;and Group E was the control without compound microbial preparation.The results showed that the fecal compost of Group B had the best effect with high temperature fermentation.Compared with Group E,the counts of E.coli in Group B were significantly decreased by 62.84%(P<0.05),but the counts of lactic acid bacteria in the group was significantly increased by 14.41%.The ammonium nitrogen concentrations in Groups A and B were lower than in the other groups(P<0.05),in which ammonium nitrogen concentration in Group B was 81.18% lower than in Group E(P<0.05).The ammonium nitrogen/total nitrogen value in Group B was 42.81% and 58.37% lower than in Groups D and E(P<0.05).The indole concentration in Group B was 53.36% and 67.52% lower than in Groups D and E(P<0.05).Compared with Groups D and E,the sulfate concentrations in Groups A,B and C were significantly decreased(P<0.05).In general,the compound microbial preparation had the best effect on the removing harmful substances from pig manure when the moisture content of the compost was 50%.