Cadmium Binding by Fractions of Dissolved Organic Matter and Humic Substances from Municipal Solid Waste Compost

2002 ◽  
Vol 31 (6) ◽  
pp. 1885-1892 ◽  
Author(s):  
Arno Kaschl ◽  
Volker Römheld ◽  
Yona Chen
2020 ◽  
Author(s):  
Iria Benavente-Ferraces ◽  
Fátima Esteban ◽  
Denis Courtier-Murias ◽  
Ana Rey ◽  
Claudio Zaccone ◽  
...  

<p>Biochar application is now considered to be one of the most promising agricultural practices to mitigate climate change. However, to fully assess the benefits of biochar, we still need to better understand its effects on soil properties, and particularly on native soil organic matter (SOM) dynamics.</p><p>In this work, we investigated soil respiration and changes in SOM pools (mineral-free, intra-aggregate, and mineral-associated SOM) as affected by the application of 20 t / ha per year of biochar alone or combined with mineral fertilizer, municipal solid waste compost, or sewage sludge. The experiment was run for 7 years in a semiarid agricultural soil. We found that biochar had no effect on soil respiration with respect to mineral fertilization and no amendment (control), and tended to decrease CO<sub>2 </sub>emissions from soils amended with municipal solid waste compost and sewage sludge. Biochar accumulated mainly in the mineral-free SOM fraction and its addition, especially in combination with municipal solid waste compost, promoted the amount of SOM occluded with aggregates and associated to mineral surfaces.</p><p>Acknowledgments: to the Spanish MICINN (MINECO, AEI, FEDER, EU) for supporting the research project AGL2016-75762-R.</p>


2007 ◽  
Vol 41 (12) ◽  
pp. 4286-4291 ◽  
Author(s):  
Susanna Olsson ◽  
Joris W. J. van Schaik ◽  
Jon Petter Gustafsson ◽  
Dan Berggren Kleja ◽  
Patrick A. W. van Hees

RSC Advances ◽  
2018 ◽  
Vol 8 (24) ◽  
pp. 13159-13166 ◽  
Author(s):  
Xu Ren ◽  
Dan Liu ◽  
Weiming Chen ◽  
Guobin Jiang ◽  
Zihan Wu ◽  
...  

The characteristics of concentrated leachate in municipal solid waste incineration power plants were analyzed from the CODCr, BOD5, the concentration of heavy metals, and spectral characteristics of dissolved organic matter.


Horticulturae ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 53
Author(s):  
Rui Machado ◽  
Isabel Alves-Pereira ◽  
Miguel Robalo ◽  
Rui Ferreira

In this study, we evaluated the effects of municipal solid waste compost supplemented with inorganic N on the physicochemical properties of soil, plant growth, nitrate concentration, and antioxidant activity in spinach. Experiments were carried out in neutral and acidic soils that were low in organic matter. A fertilized soil was used as a control, while four compost treatments—two compost rates of 35 and 70 t ha−1, supplemented or not with inorganic N (92 kg N ha−1 as Ca (NO3)2)—were applied by fertigation. The addition of compost increased the soil organic matter content and pH in both soils. The compost supplementation with N greatly increased the shoot dry weight and spinach fresh yield by nearly 109%. With the highest compost rate and 43% N applied, the yield increased in both soils, similar to results obtained in fertilized soil (3.8 kg m−2). The combined application of compost and N could replace inorganic P and K fertilization to a significant extent. The compost application at both rates and in both soils considerably decreased shoot Mn concentrations.


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