Organic contaminants in an agricultural soil with a known history of sewage sludge amendments: polynuclear aromatic hydrocarbons

1990 ◽  
Vol 24 (11) ◽  
pp. 1706-1711 ◽  
Author(s):  
Simon R. Wild ◽  
Keith S. Waterhouse ◽  
Stephen P. McGrath ◽  
Kevin C. Jones
Keyword(s):  
Sewage Sludge ◽  
Aromatic Hydrocarbons ◽  
Organic Contaminants ◽  
Agricultural Soil ◽  
Polynuclear Aromatic Hydrocarbons ◽  
History Of

scholarly journals Evidence of contamination by oil and oil products in the Santos-São Vicente estuary, São Paulo, Brazil

2012 ◽  
Vol 60 (2) ◽  
pp. 117-126 ◽  
Author(s):  
Juliana Souza Azevedo ◽  
Belisandra Lopes ◽  
Alberto Katsumiti ◽  
Elisabete Santis Braga ◽  
Helené Roche ◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Aromatic Compounds ◽  
Organic Contaminants ◽  
Brazilian Coast ◽  
Industrial Complex ◽  
Pah Metabolites ◽  
Polycyclic Aromatic ◽  
History Of ◽  
The Impact ◽  
Oil And Oil Products

Different components of the mixed function oxidase (MFO) system and the levels of fluorescent aromatic compounds in bile (FACs) were measured in Cathorops spixii in order to assess the impact of polycyclic aromatic hydrocarbons (PAHs). Fish were sampled in an estuary (Santos/São Vicente) with a history of contamination by PAHs, mainly due to the presence of the industrial complex of Cubatão city and of another of low anthropogenic influence (Cananéia) on the Brazilian coast. FACs were higher in fish from the polluted site, and the PAH 5 and 6-ring metabolites were the most frequent - with 14% and 15%, respectively. Levels of the different components of the MFO system showed the same variation profile as the FACs for both estuaries. Therefore, the values found for somatic indexes and biomarkers with data of bile PAH metabolites indicate the presence of organic contaminants, especially in the area subject to the influence of the industrial complex on the Santos/São Vicente estuary.

Assessing the fate of polynuclear aromatic hydrocarbons from oily waste land spreading by modelling

1996 ◽  
Vol 23 (1) ◽  
pp. 211-217 ◽  
Author(s):  
Clément Drolet ◽  
Olivier Banton ◽  
Pierre Lafrance ◽  
Jean-Pierre Villeneuve
Keyword(s):  
Aromatic Hydrocarbons ◽  
Organic Contaminants ◽  
Root Zone ◽  
Organic Matter Content ◽  
Physicochemical Characteristics ◽  
Matter Content ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Zone Model ◽  
Petroleum Refineries ◽  
Oily Waste

The organic wastes produced by petroleum refineries are often treated by spreading them on land sites, allowing hydrocarbons to degrade naturally. In such conditions, mathematical models representing the transport of organics in the soil are useful for predicting the quantities of hydrocarbons, like polynuclear aromatic hydrocarbons (PAHs), that could reach the water table in the short and long term. The pesticide root zone model (PRZM) simulates the fate of pesticides in the soil. Because of the analogy between the agricultural use of pesticides and the land spreading of petroleum residues containing hydrocarbons, and the similar physicochemical characteristics of these two types of potential organic contaminants, this model was applied to a land-spreading site in southern Quebec. The simulation results indicate that the studied PAHs may not migrate to depths of more than 40 cm. The predicted concentrations may be several hundred times lower when the degradation rate doubles. Natural variations in the local hydrodynamic conditions caused by soil texture do not greatly affect the concentrations of a relatively mobile PAH in soil or in water. In contrast to the texture, the soil organic matter content greatly influences the distribution of PAHs between the liquid and solid phases and, consequently, their migration through the soil. Key words: PAH, phenanthrene, pyrene, refinery, land treatment, mobility, degradation, simulation, PRZM.

Organic contaminants in Welsh soils: polynuclear aromatic hydrocarbons

1989 ◽  
Vol 23 (5) ◽  
pp. 540-550 ◽  
Author(s):  
Kevin C. Jones ◽  
Jennifer A. Stratford ◽  
Keith S. Waterhouse ◽  
Nils B. Vogt
Keyword(s):  
Aromatic Hydrocarbons ◽  
Organic Contaminants ◽  
Polynuclear Aromatic Hydrocarbons

Polynuclear aromatic hydrocarbons in an agricultural soil: Long-term changes in profile distribution

1989 ◽  
Vol 56 (4) ◽  
pp. 337-351 ◽  
Author(s):  
K.C. Jones ◽  
J.A. Stratford ◽  
P. Tidridge ◽  
K.S. Waterhouse ◽  
A.E. Johnston
Keyword(s):  
Aromatic Hydrocarbons ◽  
Agricultural Soil ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Long Term Changes ◽  
Profile Distribution

scholarly journals Caracterización física y química de biochar de lodos residuales.

2019 ◽  
Vol 37 (3) ◽  
pp. 243
Author(s):  
Martha Alicia Velázquez Machuca ◽  
Juan Rosario Equihua Soriano ◽  
José Venegas González ◽  
José Luis Montañez Soto ◽  
José Luis Pimentel Equihua ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Organic Contaminants ◽  
Agricultural Soil ◽  
Treatment Plant ◽  
Chemical Properties ◽  
Nutrient Content ◽  
Physical Chemical ◽  
Chemical Conditions ◽  
Scale Reactor

Pyrolysis treatment of sewage sludge to generate biochar is one of the current alternatives for environmental management of this waste. The treatment transforms sewage sludge into biochar, conserves some of the characteristics that give it an important agronomic value and reduces its pathogen content. The objective of this study was to analyze the potential use of the sewage sludge biochar obtained from the wastewater treatment plant (WWTP) of Morelia, Michoacán, México, as an agricultural soil improver considering the physical-chemical properties of the material and its content of nutrients and heavy metals as indicators. The sewage sludge was subjected to pyrolysis (SSB) in an experimental scale reactor that uses solar energy, with six residence times and temperature of 280 to 355 oC. The parameters analyzed were: pH EC, OM, Cu, Mn, Zn, Fe available (DTPA and EDTA), elemental composition (C, N, O, Ca, Mg, Na, K, P, S, Cl, Si, Al, Fe, Mn, Cu, Zn, Ti, Ni, Cr, Cd and Pb). The EC of the SSB obtained was from 592 to 5240 μS cm‑1, pH = 6.33 to 7.02, OM = 3.8 to 5.6%, high contents of C, N, P (31 to 38%, 6.5 to 7.7% and 37.7 to 48.8 g kg‑1, respectively), low Na/Ca ratio and a low content of total and available heavy metals. The properties of the SSB obtained indicate that it can be used as an agricultural soil improver since it is a material with high nutrient content and low environmental risk in terms of its low heavy metal content. These results should be complemented with studies on the response of plants to BLR, monitoring of physical-chemical conditions and analysis of organic contaminants in soil and water where this material is applied.

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