响应曲面法优化沼渣混合物料堆肥配比研究  

Optimization of biogas residue mixed with livestock manure co-composting using response surface methodology

作　　者：宋彩红[1,2] 夏训峰[2] 席北斗[2] 魏自民[1] 李鸣晓[2] 何小松[2] 党秋玲[2] 

机构地区：[1]东北农业大学生命科学学院,黑龙江哈尔滨150030 [2]中国环境科学研究院环境基准与风险评估国家重点实验室,北京100012

出　　处：《中国环境科学》2012年第8期1474-1479,共6页China Environmental Science

基　　金："十一五"国家科技支撑计划项目(2009BADC2B04);环保公益性行业科研专项经费(201109024);国家自然科学基金资助项目(50878201;51078340)

摘　　要：基于主成分分析,以WSC/WSN、E4/E6、NH4+-N/NO3--N、GI作为混合堆肥腐熟程度的判别指标体系,建立综合评价函数,确定综合评价值F,用于表征混合堆肥腐熟度.采用Box-Behnken设计,以F值为响应值,沼渣量、猪粪量、鸡粪量为3因素,设计了15组堆肥试验,建立二次多项数学模型,从腐熟度的角度确定沼渣、猪粪、鸡粪混合堆肥的最佳配比.结果表明:沼渣量、猪粪量、鸡粪量对响应值F影响的显著性顺序为:鸡粪量>沼渣量>猪粪量;鸡粪量一次项、沼渣量二次项达到极显著水平(P<0.01);沼渣量和鸡粪量的交互项、鸡粪量二次项达到显著水平(P<0.05);优化出的混合物料堆肥沼渣、猪粪、鸡粪最佳质量配比为5.83:7.95:7.54.由此可见,响应曲面法用于混合堆肥物料配比优化具有可行性.According to principal components analysis,a comprehensive evaluation function was built with WSC/WSN,E4/E6,NH4＋-N/NO3--N,GI,and the comprehensive evaluation value F used for the assessment of co-compost maturity was obtained on the basis of this evaluation function.In order to get the optimal proportion of biogas residue mixed with livestock manure co-composting,choosing F value as the response value and amount of biogas residue,pig manure,and chicken manure as the three factors,fifteen composting experiments were designed using Box-Behnken,and a second order polynomial equation was established.The results showed,the significant differences between the response value F and livestock manure amount was as follows： chicken manure﹥biogas residue﹥pig manure.Linear term of chicken manure amount and quadratic term of anaerobic digestion residue amount both reached extremely significant level（P〈0.01）.Interaction term of biogas residue amount,chicken manure amount and quadratic term of chicken manure amount reached significant level（P〈0.05）.The optimized proportion of co-compost was： the biogas residue amount 5.83kg,the pig manure amount 7.95kg,and the chicken manure amount 7.54kg.Therefore,it is reasonable that response surface method was used for optimization of material proportion of co-compost.

关 键 词：沼渣 混合堆肥 配比 主成分分析 Box-Behnken 

分 类 号：X71[环境科学与工程—环境工程]