两种添加剂对猪粪腐解过程中DTPA-Cu的动态影响研究

Study on DTPA-Cu content of pig manure by supplying zeolite and bentonite

以猪粪为研究对象,采用高温好氧模拟堆腐试验,研究了相同条件,两种添加剂对猪粪腐解过程中DTPA-Cu的变化规律。结果表明:外源沸石和膨润土均显著的降低了猪粪堆腐中DTPA-Cu的含量。不同添加量的沸石或不同用量的膨润土处理,2%与10%施用量间差异达显著水平。与沸石相比,施用同等用量的膨润土后猪粪堆腐中DTPA-Cu含量的降幅更为明显,通过LSD多重比较,10%的膨润土与10%的沸石处理间差异达到显著水平。非金属矿物沸石和膨润土作为外源添加剂可以有效的控制猪粪中DTPA-Cu含量,减少其潜在的环境危害。

The paper studied the DTPA -Cu change of pig manure by supplying zeolite and bentonite with high temperature aerobic composting. The main results were as follows： In the process of pig manure composting, DTPA - Cu content of manure was remarkably reduced by supplying zeolite or bentonite. Between the 2% and 10% of zeolite application was a significant level. Compared to zeolite, DTPA -Cu content in the drop was even more pronounced in the same amount of application of bentonite. Through the LSD multiple comparisons, between the 10% of bentonite and 10% zeolite was a significant level. Non -metallic mineral zeolite and bentonite as additives can be effective control of DTPA -Cu content, reduce its potential environmental hazards.