Characterization of natural organic matter (NOM) derived from sewage sludge compost. Part 2: multivariate techniques in the study of compost maturation

2005 ◽  
Vol 96 (4) ◽  
pp. 479-484 ◽  
Author(s):  
Radosław Zbytniewski ◽  
Boguslaw Buszewski
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Natural Organic Matter ◽  
Multivariate Techniques ◽  
Sludge Compost ◽  
Sewage Sludge Compost

scholarly journals PHYSICAL-CHEMICAL CHARACTERIZATION OF SOILS TREATED WITH SEWAGE SLUDGE COMPOST

2010 ◽  
Vol 2 (5) ◽  
pp. 87-92
Author(s):  
Milda Radžiūtė ◽  
Audronė Matusevičiūtė
Keyword(s):  
Heavy Metals ◽  
Water Treatment ◽  
Sewage Sludge ◽  
Organic Waste ◽  
Organic Fertilizer ◽  
Chemical Characterization ◽  
Waste Dump ◽  
Sludge Compost ◽  
Sewage Sludge Compost

Sewage dump is the main organic waste component accumulating in water treatment companies, and therefore the utilization of dump remains a burning issue. Fertilization is the most popular and cheapest way of using sewage dump a part of which is intended for agriculture in most European countries for composting purposes. Sewage dump or its compost are suitable for fertilizing the upper layers of the soil in cases the concentration of heavy metals is not greater than sanitarian standards can tolerate. The examinations were carried out using different waste dump rates from Vilnius water treatment facility in willow (Salix viminalis) grown cultivated fields. The analysis of the soil was executed after one and two years following the fertilization process. The obtained results indicate that waste dump is a valuable organic fertilizer which contains small amounts of heavy metals. Separate heavy metals migrate from sewage sludge compost to plants differently. It was noted that the concentration of heavy metals in willows was greater (except for Pb and Cd) than that in the soil.

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.

Changes in soil nutrient content, biological activity and CO2 emission rate as a result of low-dose municipal sewage sludge compost application

2020 ◽  
Author(s):  
Andrea Prof. Dr. Farsang ◽  
Katalin Dr. Perei ◽  
Attila Bodor ◽  
Zsuzsanna Dr. Ladányi ◽  
Katalin Csányi ◽  
...  
Keyword(s):  
Organic Matter ◽  
Enzyme Activity ◽  
Biological Activity ◽  
Sewage Sludge ◽  
Low Dose ◽  
Nutrient Content ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Sludge Compost ◽  
Sewage Sludge Compost

<p>Land application of sewage sludge is an increasingly popular means of the reuse of sewage sludge as it allows for recycling of valuable components, such as organic matter, N, P and other nutrients. Indeed, sewage sludge amendment to the soil modifies the soil’s physico-chemical properties, such as plant-available macro/micro nutrient contents, organic matter content. Additionally, sewage sludge applications can significantly increase the amount of microbial biomass in the soil and can also increase the soil enzyme activities. The aim of the present study is to investigate the impact of low-dose municipal sewage sludge compost amendment on the nutrient status and the biological activity in Chernozem soils. </p><p>The study area, located near Újkígyós (SE Hungary), is a 5.6 ha arable land, where 2.5 m<sup>3</sup>/ha/year municipal sewage compost has been regularly disposed since 2013. The pH (in H<sub>2</sub>O) and humus content of soils were measured according to standard procedures. The macronutrients P<sub>2</sub>O<sub>5</sub> and K<sub>2</sub>O were extracted using ammonium-lactate, while the nitrogen forms (NO<sub>2</sub><sup>-</sup> + NO<sub>3</sub><sup>-</sup> -N) were extracted with KCl-solution. The nutrient content was then determined by a flow injection analysis photometer. In order to determine the bacterial composition and enzyme activity of the soil samples, the number of living cells (CFUs), the catalase enzyme activity (CAT) and the dehydrogenase activity (DHA) were determined. The CO<sub>2</sub> emission was measured by an EGM-5 Portable High Precision CO<sub>2</sub> Meter in the field.  </p><p>The sewage sludge compost applied to Chernozem soils improved soil properties by adding slowly decomposing organic matter, abundant in plant macronutrients (N, K, P). The anaerobic microorganisms and the DHA enzyme activity in the anaerobic soil layers did not increase in the compost-amended soils. The aerobic microorganisms (CFUs) and CAT activity tended to be higher in treated soils compared to the non-amended (control) site, however not significantly. These results suggest that the soil biological activity is only moderately affected by the low-dose municipal sewage sludge compost applications. According to our field CO<sub>2</sub> emission measurements, the yearly application of the sewage sludge compost in a low-dose seemingly did not affect the soil respiration rates, compared to a local control site.</p><p>The research was funded by the ‘Thematic Network for the Sustainable Use of Re-sources – RING2017’ project (program code: EFOP-3.6.2-16-201700010).</p>

Characterization of dissolved organic matter (DOM) extracted from soils by hot water percolation (HWP)

2010 ◽  
Vol 59 (1) ◽  
pp. 99-108 ◽  
Author(s):  
M. Takács ◽  
Gy. Füleky
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Natural Organic Matter ◽  
Extraction Methods ◽  
Soil Samples ◽  
Hot Water ◽  
Soil Extracts ◽  
Water Percolation ◽  
Soil Humic Acid

The Hot Water Percolation (HWP) technique for preparing soil extracts has several advantages: it is easily carried out, fast, and several parameters can be measured from the same solution. The object of this study was to examine the possible use of HWP extracts for the characterization of soil organic matter. The HPLC-SEC chromatograms, UV-VIS and fluorescence properties of the HWP extracts were studied and the results were compared with those of the International Humic Substances Society (IHSS) Soil Humic Acid (HA), IHSS Soil Fulvic Acid (FA) and IHSS Suwannee Natural Organic Matter (NOM) standards as well as their HA counterparts isolated by traditional extraction methods from the original soil samples. The DOM of the HWP solution is probably a mixture of organic materials, which have some characteristics similar to the Soil FA fractions and NOM. The HWP extracted organic material can be studied and characterized using simple techniques, like UV-VIS and fluorescence spectroscopy.

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