| 郑君花，王修俊，冯廷萃，曲源，程艳波，范志平，王丽芳.利用磷尾矿生产含磷有机肥料的固体发酵研究[J].广东农业科学,2014,41(14):61-65 |
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利用磷尾矿生产含磷有机肥料的固体发酵研究 |
| Study on solid-state fermentation of producing phosphoruscontainingorganic fertilizer using phosphate tailings |
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| DOI： |
| 中文关键词: 磷矿尾矿 解磷 复合菌 发酵 有机肥料 |
| 英文关键词: phosphate tailings phosphate solubilizing composite inocula fermentation organic fertilizers |
| 基金项目:贵州省星火科技项目（黔科合农字[2013]5080号） |
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| 摘要点击次数: 1189 |
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| 中文摘要: |
| 为了充分利用磷矿开采过程中丢弃的低品位尾矿粉、酱油厂生产酱油后产生的酱油渣以及水稻秸秆3种废弃资源，减少对环境的污染，实现废弃资源的二次利用，研究了利用磷矿尾矿粉、水稻秸秆和酱油渣生产含磷有机肥料的工艺。利用水稻秸秆的疏松性利于培养基的透气性和酱油渣含有的粗蛋白为微生物提供氮源，结合黑曲霉、乳酸菌、醋酸菌和巨大芽孢杆菌制备的复合菌剂，通过单因素试验和响应面试验确定含磷有机肥解磷工艺。得出尾矿粉用量、料水比、发酵时间是影响复合菌剂解磷效果的显著因素，并得到最佳解磷工艺条件为尾矿粉院水稻秸秆院酱油渣的质量比为4.6：5：4，料水比为1：2.56（g/mL），发酵温度为30℃，发酵时间为121.2 h，在此条件下得到的速效磷含量为2 500 mg/kg，为生产含磷有机肥提供了必要的工艺参数和一定的理论依据。 |
| 英文摘要: |
| In order to make full use of low-grade phosphate tailings powder, soy sauce slag and rice straw to achievesecondary use, these three kind of wasted resources were combined to study on the solid-state fermentation of producing phosphorus-containing organic fertilizer. During the research, the crumbly rice straw was beneficial to the air permeability of medium, the crude protein of the soy sauce slag could provide nitrogen source for the microorganism and the composite microbial agents contains Aspergillus niger, lactic acid bacteria, acetic acid bacteria and Bacillus megaterium. The result showed that the amount of tailings powder, ratio of water and fermentation time affected the complex microbial solubilizing significantly after single factor experiment and response surface analysis. Meanwhile, the optimum conditions for composite microbial agent solubilizing phosphate rock were that tailings powder: rice straw: soy sauce residue was 4.6:5:4, material to water ratio was 1:2.56, fermentation temperature was 30℃and fermentation time was 121.2 h. In these conditions, the available phosphorus content was 2 500.03 mg/kg, which provided technical support for the production of phosphoruscontaining organic fertilizer. |
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