摘要
高硫煤矸石的大量堆积对环境造成了严重污染,为了开发利用高硫煤矸石,对巨大芽孢杆菌处理高硫煤矸石生产煤矸石肥料进行了研究,包括煤矸石的粒径、体系p H、温度、接菌量、培养时间、振荡等因素条件对制备煤矸石肥料的影响,得到制备煤矸石肥料的最佳条件。研究表明,当煤矸石的粒径为60目、体系p H 7.0~8.0、接菌量为2.5×1014~5.0×1014cfu/g、30℃下培养5 d时煤矸石中的碱解氮、有效磷和速效钾的含量分别比原样提高了26.84倍、65.71倍和10.55倍;有效硫、有效钙和有效硅的含量分别比原煤矸石中提高2.70倍、1.27倍和1.07倍。
As the abundant dumped coal gangue has caused serious environmental pollution,in order to explore the utilization of high-sulfur coal gangue,we studied the production of high-sulfur coal gangue fertilizer by bacillus megaterium.To obtain the best conditions for production of fertilizer,the factors which influenced the preparation of gangue fertilizer including the particle size of coal gangue,the p H of system,incubation time,culture temperature,the inoculation amount and oscillation were studied.The study showed that when the particle size of coal was 60 mesh,system p H was 7.0 ~ 8.0,the inoculation quantity was 2.5 × 1014~ 5.0 × 1014 cfu/g,culture temperature was 30℃ for 5 days,the readily available nitrogen,effective phosphorus and available potassium contents of coal gangue fertilizers increased by 26.84 times,65.71 times and 10.55 times respectively relative to the original coal gangue;the available sulfur,effective calcium and effective silicon contents of coal gangue fertilizers increased by 2.70 times,1.27 times and 1.07 times respectively relative to the original coal gangue.
出处
《环境工程学报》
CAS
CSCD
北大核心
2015年第2期946-950,共5页
Chinese Journal of Environmental Engineering
关键词
高硫煤矸石
巨大芽孢杆菌
肥料
high-sulfur coal gangue
bacillus megaterium
fertilizer
