| 添加钝化剂对猪粪好氧堆肥过程中理化特性的影响 |
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| 引用本文： | 李荣华,张广杰,秦睿,李晓龙,肖然,沈锋,张增强.添加钝化剂对猪粪好氧堆肥过程中理化特性的影响[J].环境科学学报,2012,32(10):2591-2599. |
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| 作者姓名： | 李荣华 张广杰 秦睿 李晓龙 肖然 沈锋 张增强 |
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| 作者单位： | 西北农林科技大学资源环境学院,杨凌,712100 |
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| 基金项目： | 陕西省攻关项目资助(No.2010K01-01) |
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| 摘 要： | 以猪粪和玉米秸秆粉为堆肥原料,通过添加不同用量的重金属钝化剂(粉煤灰、风化煤或膨润土)进行90d的好氧堆肥,研究钝化剂的种类和添加比例对堆肥理化特性的影响.结果表明:所有处理的堆体温度均能迅速升至近70℃,并维持在55℃以上超过一周;随着堆肥时间的延长,各处理堆体含水量逐渐降低,并在90d后达到30%左右,但添加膨润土能减少一次发酵期水分的损失;添加风化煤会导致堆体pH呈现较强的碱性,而添加膨润土会显著提高堆体EC值;随着堆制时间的延长,堆体Cu、Zn全量逐渐增加,但DTPA提取态Cu、Zn所占的比例则逐渐减小;对照处理和添加风化煤的各处理中,雪里蕻种子的发芽率最终均达到90%以上,GI约1.0左右;而在添加膨润土和粉煤灰的各处理中,到90d堆肥结束,发芽率最高仅达80%,仅有2.5%和5.0%添加比例(质量分数,下同)的处理中GI大于0.5,且GI的增加趋势随着膨润土和粉煤灰的添加比例增加而降低.研究表明,钝化剂的添加比例和种类对猪粪好氧堆肥中堆体温度和含水率变化无显著影响;虽然堆肥过程添加重金属钝化对堆肥重金属Cu、Zn有良好的钝化作用,但对堆体的pH和EC影响较为剧烈,对雪里蕻种子的根系生长也有一定的影响.在堆肥中应合理选择钝化剂的种类和添加比例.
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| 关 键 词： | 猪粪 好氧堆肥 钝化剂 理化特征 |
| 收稿时间： | 2011/12/22 0:00:00 |
| 修稿时间： | 3/8/2012 12:00:00 AM |
Influence of heavy metal passive agents on the compost physicochemical properties during the swine manure composting |
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| LI Ronghu,ZHANG Guangjie,QIN Rui,LI Xiaolong,XIAO Ran,SHEN Feng and ZHANG Zengqiang.Influence of heavy metal passive agents on the compost physicochemical properties during the swine manure composting[J].Acta Scientiae Circumstantiae,2012,32(10):2591-2599. |
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| Authors: | LI Ronghu ZHANG Guangjie QIN Rui LI Xiaolong XIAO Ran SHEN Feng and ZHANG Zengqiang |
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| Institution: | College of Resources and Environment, Northwest A & F University, Yangling 712100;College of Resources and Environment, Northwest A & F University, Yangling 712100;College of Resources and Environment, Northwest A & F University, Yangling 712100;College of Resources and Environment, Northwest A & F University, Yangling 712100;College of Resources and Environment, Northwest A & F University, Yangling 712100;College of Resources and Environment, Northwest A & F University, Yangling 712100;College of Resources and Environment, Northwest A & F University, Yangling 712100 |
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| Abstract: | |
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| Keywords: | swine manure aerobic compost passive agents physicochemical properties |
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