摘要
针对大量堆弃煤矸石造成的严重环境问题,研究胶质芽孢杆菌和多粘类芽孢杆菌作用于难以被植物利用的硅酸盐矿物,将其转化为煤矸石矿物肥料,并研究了堆肥过程中的固液比、堆肥时间、环境温度、硅酸盐细菌混合比例等因素对煤矸石矿物肥料品质的影响。研究表明,当采用混合菌悬液1∶1,控制固液比1∶1(湿润),25°C下堆肥15 d时,矿物肥料中的有效磷含量和速效钾含量较高,是原煤矸石样品中含量的5.12倍和2.01倍。
As the serious environmental pollution problem caused by the abundant dumped coal gangue, the research studied the production of mineral fertilizer by using Bacillus mucilaginosus and Paenibacillus polymyxa to decom- pose silicate minerals, that cannot be utilized by plant. The factors which influenced the preparation of mineral fertil- izer including the solid-to-liquid ratio, composting time, composting temperature and the mixing ratio of bacterial suspension were considered. The experiment showed that when the mixing ratio of Bacillus mucilaginosus and Paeni- bacillus polymyxa is 1 ： 1 ,the solid-to-liquid ratio is 1 ： 1 ,composting temperature was 25℃ for 15 ,the effective phosphorus and available potassium contents of coal gangue fertilizers were 5.12 times and 2.01 times relative to the original coal gangue.
出处
《矿产综合利用》
北大核心
2017年第6期115-118,共4页
Multipurpose Utilization of Mineral Resources
基金
四川省科技支撑计划项目(2015JY0025)
关键词
煤矸石
胶质芽孢杆菌
多粘类芽孢杆菌
矿物肥料
Coal gangue
Bacillus mucilaginosus
Paenibacillus polymyxa
Mineral fertilizer
