菌剂DF-1对啤酒厂污泥与鸡粪堆肥的影响

Effect of flora DF-1 on composting proceeding of brewery sludge and chicken manure

为了探讨功能性菌剂对堆肥化进程的影响,并为加快啤酒厂污泥与鸡粪堆肥化进程和减少臭气提供理论依据,将自制菌剂DF-1接种至啤酒厂污泥与鸡粪的堆体中,以不接种堆体为参照,测定了堆肥化过程中各参数的变化及菌剂DF-1中优势微生物变化情况。结果显示:两个堆体废气中NH3浓度均呈现先上升后下降的变化趋势,H2S浓度则呈现持续下降的变化情形;不接种堆体NH3浓度至堆肥腐熟期仍为0.39mmol/m3,而接种堆体第10天为1.25mmol/m3,此后无法检出;不接种堆体中H2S浓度在堆肥第22天仍为0.7mg/L;而接种菌剂堆体第10天为0.48mg/L,此后无法检出。接种菌剂DF-1不但能降低堆体水分含量,而且其堆体腐熟期TN含量高于未接种菌剂DF-1的堆体,说明接种菌剂后不但能有效减少臭气,而且有利于堆肥产品后期烘干制粒和优质高效有机肥的产生。菌剂DF-1中优势菌种乳酸乳球菌、热带假丝酵母及绿色木霉在堆肥过程中存在交替演变。

In order to investigate the function of the agents on the process of composting and provide a theoretical basis of speeding up the brewery sludge composting and reducing odor production,flora DF-1 was inoculated to the brewery sludge and chicken manure pile. The parameters of composting and the dominant microbial of flora DF-1 were measured. The non-inoculated pile was taken as control. The results showed that the concentration of NH3 in two piles increased at initial and then declined in the trend. The concentration of H2S declined continually. The concentration of NH3 was still 0.39 mmol/m3 in composting maturity stage of no-inoculated pile,while it was 1.25 mmol/m3 in the composting section 10 d of inoculation pile,and then it could not be measured. The concentration of H2S was still 0.7 mg/L in the composting section 22 d of No-inoculated pile; it was 0.48 mg/L in the composting section 10 d of inoculation pile,and then it could not be measured. Flora DF-1 could reduce the pile moisture content,and its pile composting of TN were higher than that of no-inoculated pile,which indicated that flora DF-1 could not only reduce odor,but also make for the late dry granulation and compost product quality and efficient production of organic fertilizer. Lactococcus Lactis,Candida tropicalis and Trichoderma viride were the dominant bacterial of flora DF-1. It showed that there was an alternating process of evolution in the composting process of the dominant bacterial of flora DF-1.