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首页> 外文期刊>Environmental toxicology and chemistry >DEGRADATION OF NONYLPHENOL IN SPIKED SOILS AND IN SOILS TREATED WITH ORGANIC WASTE PRODUCTS
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DEGRADATION OF NONYLPHENOL IN SPIKED SOILS AND IN SOILS TREATED WITH ORGANIC WASTE PRODUCTS

机译：污渍土壤和有机废物处理过的土壤中壬基酚的降解

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Widespread application of sewage sludge to agricultural soils in Denmark has led to concern about the accumulation and effects of nonylphenol (NP) in the soil ecosystem. We have thus studied the degradation of NP and possible uptake in agricultural plants in greenhouse pot experiments. Different waste products including anaerobic and aerobic sludge, compost, and pig manure were incorporated into a sandy soil. In addition, NP was used to spike soil to known concentrations. Rape (Brassica napus L. cv Hyola 401) was sown in the pots and harvested after 30 d. In order to investigate the influence of plant growth on the degradation, plant-free pots were established. The concentrations in the soil were between 13 and 534 ppb dry weight. No plant uptake was observed above the detection limit at 100 ppb dry weight. When NP was added as waste to the soil, plant growth significantly stimulated the degradation. In experiments with anaerobic and aerobic sludge, respectively, 13 and 8.3% of NP remained in the soil from pots planted with rape compared with 26 and 18% in soil without plant growth. When NP was added as a spike to soil, the degradation was more complete and plant growth did not influence the degradation. Percentages of 2.2 and 1.8 were still in the soil at harvest for planted and plant-free pots, respectively. The degradation of NP was more extensive in sludge-amended soil compared with compost.
机译：污水污泥在丹麦农业土壤中的广泛应用引起了人们对土壤生态系统中壬基酚（NP）的积累和影响的关注。因此，我们在温室盆栽实验中研究了NP的降解以及农业植物中可能的吸收。将不同的废物产品（包括厌氧和好氧污泥，堆肥和猪粪）掺入沙土中。此外，NP还用于将土壤加标到已知浓度。将油菜（Brassica napus L. cv Hyola 401）播种在盆中，并在30天后收获。为了研究植物生长对降解的影响，建立了无植物盆。土壤中的浓度在13至534 ppb干重之间。在干重为100 ppb时，未观察到超过检测限的植物吸收。当将NP作为废物添加到土壤中时，植物的生长显着促进了降解。在厌氧和好氧污泥的实验中，油菜种植的盆栽土壤中分别残留有13％和8.3％的NP，而没有植物生长的土壤中分别有26％和18％的NP。当将NP作为穗添加到土壤中时，降解更加完全，植物的生长不会影响降解。种植时和未种植的盆栽时，土壤中的百分比分别为2.2和1.8。与堆肥相比，污泥改良土壤中NP的降解更为广泛。

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