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首页> 外文期刊>Applied Engineering in Agriculture >RESOURCE POTENTIAL OF LIQUID DIGESTATE FROM FOOD AND KITCHEN WASTE DIGESTION ASSOCIATED WITH PARTICLE SIZE FRACTIONATION
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RESOURCE POTENTIAL OF LIQUID DIGESTATE FROM FOOD AND KITCHEN WASTE DIGESTION ASSOCIATED WITH PARTICLE SIZE FRACTIONATION

机译：与颗粒大小分馏相关的食物和厨房废物消化的液体消化状态的资源潜力

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摘要

Treatment and utilization of liquid digestates from the anaerobic digestion of household kitchen waste (HKW) and restaurant food waste (RFW) require a better characterization of different cutting size fractions. Liquid digestates of HKW and RFW were fractionated by particle size into six fractions (1,000, 100, 3, 0.45, 0.1, 0.01 mu m). Each fraction was characterized for nutrient elements, organic matter, humus, metals, and salts because of the concern for the requirements for post-treatment and agricultural use. The results indicated that more than 87% of the N was linked with the 100-mu m cutting filtrate, over 90% of the K was dissolved, and over 70% of the P remained undissolved. In HKW and RFW liquid digestate, total organic carbon associated with the 0.1 to 100 mu m particulate accounted for 42% and 33%, respectively, whereas Ca associated with the 0.45 to 100 mu m particulate accounted for 75% and 60%, respectively. The nutrient elements, Fe, Mg, and salt content of RFW were higher than that of HKW. The concentrations of heavy metals in HKW and RFW digestate were extremely low.
机译：家用厨余垃圾（HKW）和饭店食物垃圾（RFW）厌氧消化液消化液的处理和利用需要更好地表征不同切割尺寸的馏分。将HKW和RFW的液体消化物按粒度分为六部分（1,000、100、3、0.45、0.1、0.01μm）。由于关注后处理和农业用途的要求，因此对每个馏分的营养元素，有机质，腐殖质，金属和盐进行了表征。结果表明，超过100％的切割滤液与87％的N相连，超过90％的K被溶解，超过70％的P未被溶解。在HKW和RFW液体消化物中，与0.1至100微米颗粒相关的总有机碳分别占42％和33％，而与0.45至100微米颗粒相关的Ca分别占75％和60％。 RFW的营养元素，Fe，Mg和盐含量高于HKW。 HKW和RFW消化物中的重金属含量极低。

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