农业工程学报2016，Vol.32Issue(z2)：218-225,8.DOI:10.11975/j.issn.1002-6819.2016.z2.030
畜禽粪便固液分离技术特点及效率评估
Characteristics and efficiency evaluation of livestock slurry separation technologies
摘要
Abstract
The separation efficiencies of different separation technologies of livestock slurries were studied in this paper. The advantages and disadvantages of these techniques were evaluated so as the suitable livestock slurries. Results showed that the moisture content of solid phase from gravity separation technologies was too high (>90%), although it had the best separation efficiency on organic particles with diameter less than 1mm. Static rundown was the most widely and easily used separator, it was economic especially in large scale. The trafficable sediment basin could be used as the pretreatment of anaerobic digestion or other separation technologies. The cost of rotating screen and vibrating screen was higher than that of static rundown, and always need more maintenance. All mechanical screening technologies were efficiently to remove the fibrous, but were poorly on the soluble nutrient. The solid state from all mechanical screening could be used for fermentation directly. The presses technologies can enhance the separation efficiency of the phosphorus as well as the TS content in the solid state, but increased the costs simultaneously. Decanter centrifuge worked most efficiently, especially on phosphorus and fine particles, but was ineffectively to deal with dilute slurry. Decanter centrifuge was the only technique which could produce seemingly clarifying liquid state that can be used in many ways but the investment and manage cost were too high to popularize in China. Scarcely any technologies could separate the VAFs efficiently, so the BOD and odor cannot be removed in the same way. Combination different technologies to enhance the separation efficiency while decrease the water content will be the way of future technology development. gies to enhance the separation efficiency while decrease the water content will be the way of future technology development.关键词
粪/氮/固液分离/总固含物/磷Key words
manure/nitrogen/soliel-liquid separation/total solid (TS)/phosphorus分类
农业科技引用本文复制引用
江滔,温志国,马旭光,杨娟,陈茂霞,Frank Schuchardt,李国学..畜禽粪便固液分离技术特点及效率评估[J].农业工程学报,2016,32(z2):218-225,8.基金项目
“十二五”国家科技支撑计划“西南地区种养业废弃物循环利用技术集成与示范” （）
“十三五”国家科技支撑计划“农业废弃物好氧发酵过程中碳氮转化损失规律与氨挥发调控技术研究”（2016YFD0800601）；乐山市重点科技计划项目“乐山市农业固体废弃物可开发资源量的评估及其综合化利用模式研究” （）
