scholarly journals Short-Term Effects of Sewage Sludge Compost Amendment on Semiarid Soil

Soil Systems ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 48 ◽  
Author(s):  
Maddalena Curci ◽  
Anna Lavecchia ◽  
Giovanna Cucci ◽  
Giovanni Lacolla ◽  
Ugo De Corato ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Soil Properties ◽  
Mineral Fertilizer ◽  
Short Term ◽  
Total N ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Dose Rates ◽  
Compost Amendment ◽  
Short Period

The adoption of sewage sludge as an agricultural management strategy to improve soil properties and crop production is attracting great interest. Despite many positive effects on soil inorganic and organic components reported for different soil types, little information is available on sewage sludge application on Mediterranean soils, as well as on its use at different dose rates. The objectives of the present research was to evaluate, through an integrated approach, the effects of sewage sludge compost from urban wastewater on physicochemical, hydrological, biochemical parameters, and microbiota composition in soil pots under a three-year crop rotation system. Four different doses of sewage sludge compost (C3, C6, C9, C12) from municipal wastewater and a dose of them in combination with mineral fertilizer (C6N) were used. We have used 3-6-9-12 Mg/ha of sewage sludge compost for the treatments C3, C6, C9 and C12, respectively, and 6 Mg/ha of sewage sludge compost in combination with 60 kg/ha of ammonium nitrate for the treatment C6N.The effects were compared to non-fertilized (C0) and mineral fertilized (Min) sets of controls. The electrical conductivity, soil pH, stability of soil aggregates, percent of moisture of the dry soil both at the field capacity and at the wilting point, available P, and exchangeable K were all positively affected by increasing the amounts of composted sludge. The organic carbon and total N increased up to 66% and 39%, respectively. Increased enzymatic activities and microbial biomass were also observed in soil after the application of sewage sludge compost when compared to un-amended control. A higher richness and evenness among the soil plots amended with sewage sludge compost was observed, with no significant differences among the application dose rates, when compared to the un-amended soil control and soil treated with a mineral fertilizer. A three-year amendment was able to separate soil plots amended with high doses of sewage sludge compost from the low dose amended and control samples. Among the microbial groups responsible for such marked separation, bacteria belonging to Actinobacteria, Acidobacteria, Cyanobacteria and Bacteroidetes contribute the most, with a shift from oligotrophic to copiotrophic taxa. Significant changes in bacterial composition and taxonomic structure should be considered in order to properly balance agronomic and economic advantages with environmental concerns. After all, our results have evidenced the effects of sewage sludge amendment on different soil properties, microbial activity, and composition already after a short period of application. The findings are particularly relevant in semiarid soils, where an immediate restoration of soil fertility by short-term compost application is needed.

scholarly journals The Cumulative Effects of Sewage Sludge Compost on <i>Raphanus sativus</i> L: Growth and Soil Properties

2016 ◽  
Vol 06 (01) ◽  
pp. 1-10 ◽  
Author(s):  
Vanessa N. Lima ◽  
Ricardo V. Trótski O. Silva ◽  
Patrícia Nunes ◽  
Paulo H. da Silva ◽  
Kyriale Morant ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Soil Properties ◽  
Raphanus Sativus ◽  
Cumulative Effects ◽  
Sludge Compost ◽  
Sewage Sludge Compost

PCDD/F and dioxin-like PCB profiles in soils amended with sewage sludge, compost, farmyard manure, and mineral fertilizer since 1962

2010 ◽  
Vol 18 (3) ◽  
pp. 461-470 ◽  
Author(s):  
Gunther Umlauf ◽  
Eugen H. Christoph ◽  
Laura Lanzini ◽  
Risto Savolainen ◽  
Helle Skejo ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Farmyard Manure ◽  
Mineral Fertilizer ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Dioxin Like Pcb

scholarly journals Fertility Impact of Separate and Combined Treatments with Biochar, Sewage Sludge Compost and Bacterial Inocula on Acidic Sandy Soil

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1612 ◽  
Author(s):  
Nikolett Uzinger ◽  
Tünde Takács ◽  
Tibor Szili-Kovács ◽  
László Radimszky ◽  
Anna Füzy ◽  
...  
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Microbial Activity ◽  
Sandy Soil ◽  
Combined Treatments ◽  
Short Term ◽  
Root Colonisation ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Combined Application

The short-term effects of processed waste materials: sewage sludge compost (up to 0.5%), biochar made of paper sludge and grain husk (BC) (up to 2%) combined with plant growth-promoting rhizobacterial (PGPR) inoculum, on the fertility of acidic sandy soil at 65% of field capacity were tested in a pot experiment in separate and combined treatments. The soil pH, organic matter content, total and plant-available nutrients, substrate-induced respiration, arbuscular mycorrhizal fungal (AMF) root colonisation parameters and maize (Zea mays L.) biomass were investigated in experiments lasting two months. The positive priming (21% organic matter loss) induced by BC alone was not observed after combined application. The combination of compost and PGPR with 1.5% BC resulted in 35% higher P and K availability due to greater microbial activity compared to BC alone. Only compost applied alone at 0.5% gave a 2.7 times increase in maize biomass. The highest microbial activity and lowest AMF colonisation were found in combined treatments. In the short term the combined application of BC, compost and PGPR did not result in higher fertility on the investigated soil. Further research is needed with a wider range of combined treatments on acidic sandy soil for better understanding of the process.

Short-term Effects of Sewage-Sludge Compost on a Degraded Mediterranean Soil

2006 ◽  
Vol 70 (4) ◽  
pp. 1178-1188 ◽  
Author(s):  
Marie Larchevêque ◽  
Virginie Baldy ◽  
Nicolas Montès ◽  
Catherine Fernandez ◽  
Gilles Bonin ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Short Term ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Mediterranean Soil ◽  
Short Term Effects

scholarly journals Impact of Low-Dose Municipal Sewage Sludge Compost Treatments on the Nutrient and the Heavy Metal Contents in a Chernozem Topsoil Near Újkígyós, Hungary: A 5-Year Comparison

2020 ◽  
Vol 13 (1-2) ◽  
pp. 25-30 ◽  
Author(s):  
Zsuzsanna Ladányi ◽  
Katalin Csányi ◽  
Andrea Farsang ◽  
Katalin Perei ◽  
Attila Bodor ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Sewage Sludge ◽  
Soil Properties ◽  
Low Dose ◽  
Nutrient Content ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Metal Contents

AbstractAgriculture is one of the major fields, where sewage sludge can be used. Its high nutrient content can contribute to the improvement of important soil properties, such as nutrient content, water balance and soil structure. However, sewage sludge may contain hazardous components, such as pathogens and pollutants. Therefore, it is important to monitor the effects of its field application. In this paper, we assessed the impacts of two low-dose (2.5 m3/ha) municipal sewage sludge compost applications (in 2013 and in 2017) in a 5.6 ha arable land in southeast Hungary (near Újkígyós), located in the Hungarian Great Plain. The nutrient and the heavy metal contents in the upper soil layer (0-30 cm) of the studied Chernozem soils were compared between two sampling campaigns in 2013 (before the compost applications) and in 2018 (after the compost applications). Basic soil properties (pH, salinity, humus content, carbonate content, Arany yarn number) complemented with nutrient content (K2O, P2O5, NO2+ NO3) and heavy metal content (Cd, Co, Cr, Cu, Ni, Pb and Zn) analyses were performed. The results show that no significant change can be noticed in the baseline parameters over the 5-year period. The slight increase in the P2O5, NO2+ NO3 content is closely related to the beneficial effects of the sewage sludge deposition. The soil-bound heavy metal load did not increase significantly as a result of the compost treatments, only nickel showed a slight increase in the topsoil. In all cases the heavy metal concentrations did not reach the contamination thresholds set by Hungarian standards. The results provided positive evidences proving that low dose municipal sewage sludge compost disposal on agricultural land is safe, and can be considered as a sustainable soil amendment for agriculture in compliance with legal requirements.

Effects of Sewage Sludge Compost on the Physicochemical Properties of the Aeolian Sandy Soil

2014 ◽  
Vol 955-959 ◽  
pp. 2764-2767
Author(s):  
Jie Wang ◽  
Feng De Tang ◽  
Yan Li Yi
Keyword(s):  
Sewage Sludge ◽  
Bulk Density ◽  
Sandy Soil ◽  
Ph Value ◽  
Organic Fertilizer ◽  
Field Capacity ◽  
Total N ◽  
Available N ◽  
Sludge Compost ◽  
Sewage Sludge Compost

The aim of this study was to assess the effects of the addition of sewage sludge compost (SSC) on the properties of aeolian sandy soil by measuring electric conductivity (EC),pH value,bulk density,field capacity,total N(TN),total P(TP),organic matter (OM),available N,available P and available K.Seven treatments were included in this experiment,the SSC was applied at rates of 0,2,5,10,15,20,25 kg·m-1.The results showed that the physichemical properties changed greatly with the addition of SSC to the soil. As for physical properties of the soil, bulk density decreased gradually, the field capacity increased significantly compared with CK,As for chemical properties, pH changed inapparently, the concentration of OM and other nutrients were positive correlated with SSC dosages. It was concluded that the addition of SSC could enhance the soil’s fertility and improve the soil’s physical structure,it was an effective disposition way for sewage sludge to be used as the organic fertilizer in soil.

scholarly journals CO2 emission from soil after reforestation and application of sewage sludge

Bragantia ◽  
2014 ◽  
Vol 73 (3) ◽  
pp. 312-318 ◽  
Author(s):  
Janaina Braga Carmo ◽  
Danilo Ignácio de Urzedo ◽  
Pedro José Ferreira Filho ◽  
Elisabete Alves Pereira ◽  
Leonardo Machado Pitombo
Keyword(s):  
Sewage Sludge ◽  
Carbon Dioxide Emissions ◽  
Block Design ◽  
Mineral Fertilizer ◽  
Co2 Flux ◽  
Co2 Fluxes ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Randomized Block Design ◽  
Height Increase

This study aimed to quantify the carbon dioxide emissions from an Oxisol under degraded pasture located in Sorocaba, São Paulo State, Brazil. The treatments were: sewage sludge (LE), sewage sludge compost (CLE), mineral fertilizer (AM) and no fertilization (T0). The experiment was conducted in a completely randomized block design with analysis of the effect of the four treatments (CLE, LE, and AM T0) with four replications. The application of sewage sludge, sewage sludge compost, mineral fertilizer and no fertilizer was statistically significant for the variables of height increase and stem height of Guanandi seedlings (Calophyllum brasiliense Cambessèdes - Calophyllaceae). Treatments showed significant differences in terms of CO2 emissions from soil. The CLE exhibited the highest CO2 fluxes, reaching a peak of 9.33±0.96 g C m- 2 day- 1 (p<0.0001), as well as the LE with a maximum CO2 flux of 6.35±1.17 C m- 2 day- 1 (p<0.005). The AM treatment (4.96±1.61 g C m- 2 day- 1) had the same statistical effect as T0 (5.33±0.49 g C m- 2 day- 1). CO2 fluxes were correlated with soil temperature in all treatments. However, considering the period of 172 days of evaluation, the total loss of C as CO2 was 2.7% for sewage sludge and 0.7% for the sewage sludge compost of the total C added with the application on soil.

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