生态与农村环境学报 ›› 2020, Vol. 36 ›› Issue (7): 938-944.doi: 10.19741/j.issn.1673-4831.2019.0481

• 污染控制与修复 • 上一篇    下一篇

规模猪场沼液沉淀池底泥中磷形态变化特征

刘威1, 石金霞2, 管益东3, 付强2, 朱燕云1, 靳红梅1,4,5   

  1. 1. 江苏省农业科学院循环农业研究中心, 江苏 南京 210014;
    2. 盐城工学院环境科学与工程学院, 江苏 盐城 224000;
    3. 南京信息工程大学环境科学与工程学院, 江苏 南京 210044;
    4. 农业农村部种养结合重点实验室, 江苏 南京 210014;
    5. 江苏省有机固体废弃物资源化协同创新中心, 江苏 南京 210095
  • 收稿日期:2019-06-25 发布日期:2020-07-18
  • 通讯作者: 靳红梅 E-mail:hmjin@jaas.ac.cn
  • 作者简介:刘威(1990-),男,河南商水人,硕士,助理研究员,从事农业废弃物氮磷高效资源化方面的研究。E-mail:1342960140@qq.com
  • 基金资助:
    国家自然科学基金面上项目(21577052);江苏省现代农业重点及面上项目(BE2017363)

Characteristics of Phosphorus Forms in Sediments of Multilevel Digestate Stabilization Ponds in a Large-scale Swine Farm

LIU Wei1, SHI Jin-xia2, GUAN Yi-dong3, FU Qiang2, ZHU Yan-yun1, JIN Hong-mei1,4,5   

  1. 1. Recycling Agriculture Research Center, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
    2. School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224000, China;
    3. School of Environmental Science and Engineering, Nanjing University of Information Science&Technology, Nanjing 210044, China;
    4. Key Laboratory of Crop and Livestock Integrated Farming, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China;
    5. Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China
  • Received:2019-06-25 Published:2020-07-18

摘要: 以规模猪场污染物排放定位监测点为依托,利用SMT法系统研究二级串联沉淀池0~10和>10~20 cm深度底泥中总磷(TP)、无机磷(IP)、有机磷(OP)、NaOH提取态磷(NaOH-P)和HCl提取态磷(HCl-P)浓度变化特征。研究发现,0~10 cm深度底泥中各形态磷含量均高于>10~20 cm深度底泥,且沉淀池I>沉淀池Ⅱ。在沉淀池I的底泥中,各形态磷含量由大到小依次为HCl-P、NaOH-P和OP。在沉淀池Ⅱ的底泥中,各形态磷含量由大到小依次为OP、NaOH-P和HCl-P。HCl-P(惰性磷)占比均表现为0~10 cm深度高于>10~20 cm深度,沉淀池I>沉淀池Ⅱ,说明更深层底泥和二级沉淀池底泥中的磷活性更高。该研究可为提高沼液贮存池底泥中磷的安全合理利用提供参考。

关键词: 沉淀池, 底泥, 磷形态, 变化特征, 猪场沼液

Abstract: A large-scale swine farm was selected for fixed monitoring to study the change characteristics of phosphorus forms in sediments of multilevel digestate stabilization ponds. The standards, measurement and testing (SMT) method was used to analyze the contents of total phosphorus (TP), inorganic phosphorus (IP), organic phosphorus (OP), NaOH-extracted phosphorus (NaOH-P) and HCl-extracted phosphorus (HCl-P). The results show that the contents of various forms of phosphorus in the sediment of 0-10 cm depth were higher than those in the sediment of >10-20 cm depth. In addition, their contents in the primary stabilization pond (S1) were higher than those from the secondary stabilization pond (S2). The change trend of various phosphorus in the S1 was HCl-P > NaOH-P > OP; while that in the S2 was OP > NaOH-P > HCl-P. The proportion of HCl-P, which was considered as the stable form, in the sediment of 0-10 cm was higher than that in the sediment of >10-20 cm, and higher in S1 than in S2. The results indicate that the phosphorus in the deep layer of sediment is more active than that in the superficial layer. The study will provide a reference for reasonable utilization of phosphorus of sediment of stabilization ponds in animal farms.

Key words: stabilization pond, sediment, phosphorus form, change characteristics, digestate in swine

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