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首页> 外文期刊>Chemosphere >Evolution of the fatty fraction during co-composting of olive oil industry wastes with animal manure: Maturity assessment of the end product
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Evolution of the fatty fraction during co-composting of olive oil industry wastes with animal manure: Maturity assessment of the end product

机译：橄榄油工业废料与动物粪便共同堆肥过程中脂肪级分的演变：最终产品的成熟度评估

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摘要

Olive mill wastewater sludge, resulting from the natural evaporation of olive oil processing effluent, was co-composted with poultry manure and changes in the lipid fraction investigated. Composting was achieved after approximately 9 months, leading to a compost with high stability and maturity (C/N ratio: 11.9; cation exchange capacity (CEC): 85.9 meq 100 g~(-1) organic matter, CEC/total organic carbon: 4.2 meq g~(-1); humic acids carbon/fulvic acids carbon: 2.2) useable directly in agriculture and having the same fertilizing capacity as farmyard manure.rnComposting led to a reduction in the lipid fraction by at least 95%. Unsaturated fatty acids, particularly polyunsaturated acids, were the most degraded (reduction of 55%) leading to an increase in saturated fatty acids. This change was confirmed by the relative increase in the peroxide index from 5 to 32.5 meq O_2 kg~(-1) fats, and a decrease in the C_(18:2)C_(16:0) ratio from 0.9 to 0.3. In addition, this study demonstrated that 1.2% of the humic acids component of the compost comprised fatty acids.
机译：橄榄油加工废水自然蒸发产生的橄榄油厂废水污泥与家禽粪便混合在一起，研究了脂质含量的变化。大约9个月后就实现了堆肥，从而形成了具有高稳定性和成熟度的堆肥（C / N比：11.9；阳离子交换容量（CEC）：85.9毫克当量100 g〜（-1）有机物，CEC /总有机碳： 4.2 meq g〜（-1）;腐殖酸碳/富里酸碳：2.2）可直接用于农业且具有与农家肥料相同的施肥能力。堆肥可将脂质含量降低至少95％。不饱和脂肪酸，特别是多不饱和酸，是最降解的（减少55％），导致饱和脂肪酸增加。过氧化物指数从5毫克当量O_2 kg〜（-1）相对增加，C_（18：2）C_（16：0）比率从0.9降低到0.3证实了这一变化。此外，这项研究表明堆肥中腐殖酸成分的1.2％包含脂肪酸。

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  • 来源
    《Chemosphere》 |2009年第10期|1382-1386|共5页
  • 作者

    Ridha Hachicha; Salma Hachicha; Imen Trabelsi; Steve Woodward; Tahar Mechichi;

  • 作者单位

    Ecole Nationale d'lngenieurs de Sfax, Department of Biology, Route de Soukra, BP 1173, 3038 Sfax, Tunisia;

    Ecole Nationale d'lngenieurs de Sfax, Department of Biology, Route de Soukra, BP 1173, 3038 Sfax, Tunisia;

    Ecole Nationale d'lngenieurs de Sfax, Department of Biology, Route de Soukra, BP 1173, 3038 Sfax, Tunisia;

    University of Aberdeen, School of Biological Sciences, Department of Plant and Soil Science, Cruickshank Building, St. Machar Drive, Aberdeen AB24 3UU, Scotland, UK;

    Ecole Nationale d'lngenieurs de Sfax, Department of Biology, Route de Soukra, BP 1173, 3038 Sfax, Tunisia;

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

    olive mill sludge; poultry manure; composting; fats; C_(18:2)/C_(16:0) ratio; peroxide index;

    机译：橄榄磨泥家禽粪便堆肥脂肪C_（18：2）/ C_（16：0）比率;过氧化物指数;

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