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首页> 外文期刊>Biomass & bioenergy >SRC willow as a bioremediation medium for a dairy farm effluent with high pollution potential
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SRC willow as a bioremediation medium for a dairy farm effluent with high pollution potential

机译：SRC杨柳作为具有高污染潜力的奶牛场废水的生物修复介质

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摘要

Dairy farm dirty water (FDW), consisting of parlour washings contaminated with cattle faecal matter, urine and agri-nutrients was used to irrigate a 5 ha short rotation willow coppice planted with six genotypes of commercially available, high yielding energy crop willows in an experiment conducted over 5 years. The willow genotypes selected were chosen primarily for their disease and pest resistance properties though they also differed in yield potential, dry matter, energy and nutrient content; factors critically important for growers and end users. Throughout the duration of the trial the pH, conductivity, nitrogen, phosphorus and potassium concentrations of the FDW were consistent and without significant differences, although biochemical oxygen demand (BOD) levels did differ significantly between years (2753 ± 259 mg L~(−1)). Soil, ground and drainage waters were generally not seen to be adversely affected by application of the FDW, with nutrients found to remain at pre-irrigation concentrations or similar to waters from non-irrigated catchments. Soil phosphorus content remained relatively stable at the lower treatment rates but did rise significantly at the highest irrigation rate. Biomass dry matter yields, harvested after a 3-year growth rotation, ranged from 26.7 to 42.9 Mg ha~(−1) 3yr ~(−1) and showed significant differences (P < 0.05) in yields between genotypes but not treatments. Three year old harvested stem tissues and leaves had significant differences in nutrient concentrations that were related more to genotype than treatment. Off-takes of nitrogen, phosphorus and potassium (average 0.22 ± 0.04, 0.04 ± 0.01 and 0.09 ± 0.01 Mg ha~(−1) 3y~(−1) respectively) found in harvested biomass showed significant differences between genotypes but not treatments. The results indicated that this particular type of farm effluent, with a particular range of nutrient concentrations, was applied at specific rates to SRC willow without detriment to soil, ground and drain waters, site soils and biomass yields. Genotype was the major influence on crop yield and nutrient off-take.
机译：在实验中，奶牛场污水（FDW）由被牛粪便，尿液和农业营养物质污染的客厅洗涤液组成，用于灌溉种植了5公顷短周期柳树小灌木丛，种植了六种基因型可商业获得的高产能源作物柳树进行了5年。选择的柳树基因型主要是根据其疾病和害虫抗性特性选择的，尽管它们在产量潜力，干物质，能量和养分含量上也有所不同。对种植者和最终用户至关重要的因素。在整个试验过程中，尽管各年之间的生化需氧量（BOD）水平确实存在显着差异（2753±259 mg L〜（-1），但FDW的pH，电导率，氮，磷和钾的浓度是一致的，没有显着差异。 ））。通常，使用FDW不会对土壤，地下水和排水造成不利影响，发现养分保持在灌溉前的浓度或类似于非灌溉集水区的水。在较低的处理速率下，土壤磷含量保持相对稳定，但在最高的灌溉速率下却显着增加。经过3年的生长轮换后收获的生物质干物质产量在26.7至42.9 Mg ha〜（-1）3yr〜（-1）之间，并且基因型之间的产量差异显着（P <0.05），但不同处理之间差异不显着（P <0.05）。三岁的收获的茎组织和叶片的养分浓度存在显着差异，而养分浓度与基因型而不是处理更为相关。在收获的生物量中发现的氮，磷和钾的吸收量（分别为0.22±0.04、0.04±0.01和0.09±0.01 Mg ha〜（-1）3y〜（-1））显示出基因型之间的显着差异，但不同处理之间无显着差异。结果表明，具有特定养分浓度范围的这种特定类型的农场污水以特定的比例施用于SRC柳树，而不会损害土壤，地下水和排水水，原地土壤和生物量产量。基因型是影响作物产量和养分吸收的主要因素。

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  • 来源
    《Biomass & bioenergy》 |2017年第10期|174-189|共16页
  • 作者

    Forbes Edward G.A.; Johnston Christopher R.; Archer John E.; McCracken Alistair R.;

  • 作者单位

    Agri-Food and Biosciences Institute Northern Ireland, AFBI, Large Park Research Farm, Co Down, Hillsborough, Northern Ireland, United Kingdom;

    Agri-Food and Biosciences Institute Northern Ireland, AFBI, Large Park Research Farm, Co Down, Hillsborough, Northern Ireland, United Kingdom;

    Agri-Food and Biosciences Institute Northern Ireland, AFBI, Large Park Research Farm, Co Down, Hillsborough, Northern Ireland, United Kingdom;

    Agri-Food and Biosciences Institute Northern Ireland, AFBI, Large Park Research Farm, Co Down, Hillsborough, Northern Ireland, United Kingdom;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Bio-remediation; Biomass; Coppice; Effluent; Farmyard; Irrigation;

    机译：生物修复;生物质矮林;废水农家灌溉;

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