...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dynamic Soil, Dynamic Plant >Sewage Sludge Compost Evaluation in Oats, Pepper and Eggplant Cultivation
【24h】

Sewage Sludge Compost Evaluation in Oats, Pepper and Eggplant Cultivation

机译：燕麦，辣椒和茄子栽培中的污泥堆肥评估

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Environmental problems associated with sewage sludge disposal have prompted legislative actions over the past years. Composting of sewage sludge can enhance its quality and suitability for agricultural use. The presence of heavy metals in raw materialis one of the most serious problems limiting its use as a final product in agriculture. The application of natural zeolite, has the ability to take up heavy metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn) in significant levels (p<0.05) as indicated by the finalresults: 25% (w/w) of zeolite in sludge takes up 100% of Cd, 20% of Co, 36% of Cu, 12% of Cr, 10% of Mn, 40% of Fe and Zn, 32% of Pb and 53% of Ni. The compost was added in pots which contained soil at 25, 50, 75 and 100 (w/w). Oats, pepper and eggplantseed were cultivated in order to observe the absorbance of metals that remain in the compost through the roots, the looms and the leaves. The crop uptake of heavy metals through the roots increased with the amount of compost used in the pot. The application of compost in pepper, oats and eggplant cultivation increased while zeolite could retain the heavy metals and did not let them pass from the roots to the final product. Also, the phytotoxicity and the humics of the final product are presented as a function of evaluation. The substrate was characterized as non-phytotoxic after 80 days of maturity, and the (Germination Index) GI was 78, 75 and 72 for oats, eggplant and pepper seeds, respectively. Total humics was low due the low concentrations of lignin and cellulose in the initial sample.
机译：在过去的几年中，与污水污泥处理相关的环境问题促使人们采取了立法行动。污水污泥的堆肥可以提高其质量和农业用途。原材料中重金属的存在是最严重的问题之一，限制了其作为农业最终产品的用途。最终结果表明，天然沸石的应用能够以显着水平（p <0.05）吸收重金属（Cd，Cr，Cu，Fe，Mn，Ni，Pb，Zn）（p <0.05）： w）污泥中的沸石吸收100％的Cd，20％的Co，36％的Cu，12％的Cr，10％的Mn，40％的Fe和Zn，32％的Pb和53％的Ni。将堆肥添加到含有25、50、75和100（w / w）的土壤的盆中。种植燕麦，胡椒和茄子种子以观察残留在堆肥中的金属通过根部，织布机和叶子的吸收。作物通过根部吸收的重金属随锅中堆肥的使用量增加而增加。堆肥在辣椒，燕麦和茄子栽培中的应用有所增加，而沸石可以保留重金属，并且不会使重金属从根部传递到最终产品。同样，最终产品的植物毒性和腐殖质也作为评估的函数。成熟80天后，该基质的特征是无植物毒性，燕麦，茄子和胡椒种子的（发芽指数）GI分别为78、75和72。由于原始样品中木质素和纤维素的浓度低，总的腐殖质含量很低。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号