外源添加膨润土对猪粪腐解中可溶性盐的动态影响研究

Study on Soluble Salt Content of Pig Manure by Supplying Bentonite

以猪粪为研究对象,采用高温好氧模拟堆腐试验,研究了外源添加剂膨润土对猪粪腐解过程中可溶性盐的变化规律。研究结果表明:不同用量的外源膨润土均不同程度的降低了猪粪堆腐中可溶性盐的含量。中高添加量的膨润土处理与对照相比差异达显著水平;不同添加量的膨润土处理,通过LSD多重比较2,%与10%添加量间差异达显著水平。非金属矿物膨润土作为外源添加剂可以有效的控制猪粪腐解中可溶性盐的含量,减少其潜在的危害。

The paper studied the soluble salt change of pig manure by supplying bentonite with high temperature aerobic composting.The main results were as follows： In the process of pig manure composting, soluble salt content of manure was remarkably reduced by supplying bentonite. Between the 2% and 10% of bentonite application was a significant level. Through the LSD multiple comparisons, between the 5%,10% of bentonite and CK was a significant level. Non-metallic mineral bentonite as additives can be effective control of soluble salt content, reduce its potential environmental hazards.