The influence of redox chemistry and pH on chemically active forms of arsenic in sewage sludge-amended soil

Carbonell-Barrachina, Ángel A.; Jugsujinda, A.; DeLaune, Ronald D.; Patrick, W. H.; Burló, Francisco; Sirisukhodom, S.; Anurakpongsatorn, Patana

doi:10.1016/s0160-4120(99)00027-6

Cited by 62 publications

(27 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Such an effect may be caused by the presence of anions, such as phosphates, that compete with arsenates for oxide sorption sites and also by the changes in soil pH or redox potential (Bolan et al 2013;Lewińska and Karczewska 2013;Wenzel 2013;Arco-Lázaro et al 2016). Important parameters that affect the processes of As sorption and desorption are soil pH (Carbonell-Barrachina et al 1999;Wenzel 2013;Komárek et al 2013), as well as the presence or absence of carbonates. Fakhreddine et al (2015) stressed that Ca 2+ and Mg 2+ cations present in water at high concentrations foster arsenate adsorption to the phyllosilicate clay minerals, while at the absence of those cations in water As gets easily released from the sediments into solution.…”

Section: Introductionmentioning

confidence: 99%

Transformation of beech forest litter as a factor that triggers arsenic solubility in soils developed on historical mine dumps

et al. 2018

View full text Add to dashboard Cite

Purpose Soils that develop on the dumps in historical arsenic mining sites contain high concentrations of As thus constituting a serious environmental risk. This study was aimed to examine the changes in arsenic solubility in mine soils as induced by organic matter introduced with forest litter. Materials and methods Four large samples of initially developed soils were collected from the dumps remaining in former mining sites and were incubated for 90 days at various moistures: 80% of maximum water holding capacity and 100% (flooded conditions), with and without addition of beech forest litter (BL), 50 g/kg. Soils contained up to 5.0% As. Soil pore water was collected periodically with MacroRhizon suction samplers and examined on As, Mn, and Fe concentrations, pH, Eh, and dissolved organic carbon (DOC). The properties of dissolved organic matter were characterized by UV-VIS spectroscopic parameters A4/A6 and SUVA 254 . Results and discussion Application of BL resulted in an intensive release of As from soils, particularly at 100% moisture. As concentrations in soil pore water increased strongly during the first 2 or 4 weeks of incubation and then started to decrease in all cases, except for one flooded soil. As was released particularly intensively from carbonate-containing soils. The mechanisms of As mobilization, including reductive dissolution of Mn and Fe oxides and the competition with DOC for sorption sites on the oxides, were discussed as related to soil properties. Pore water concentrations of DOC were increasing at the beginning of incubation and started to decrease after two or four weeks. Spectroscopic parameters of dissolved organic matter in ZS soils indicated increasing aromaticity and progress of humification. Conclusions Forest litter introduced to mine dump soils causes a mobilization of As into soil pore water. This effect, particularly strong in carbonate-rich soils, is apparently related to high concentrations of DOC and usually declines with time, which may be explained by the progress in humification. The relationships between DOC properties and As speciation in soil pore water should be dissected for better interpretation of experimental results.

show abstract

Section: Introductionmentioning

confidence: 99%

Transformation of beech forest litter as a factor that triggers arsenic solubility in soils developed on historical mine dumps

et al. 2018

View full text Add to dashboard Cite

show abstract

“…As for the adsorption sites, competitive adsorption of dissolved organic matter and arsenate was observed by Lin et al (2002). However, Carbonell-Barrachina et al (1999) found Table 1. Total element contents in urban dust samples (Letná and subway), rural dust samples (Č. Újezd, Přestanov, Suchdol), and experimental soil (mg/kg) that an organic amendment rich in sulfur compounds can reduce the risk of As pollution under anoxic conditions by precipitation of this element as insoluble sulfides.…”

Section: Resultsmentioning

confidence: 96%

Particular aspects of environmental impact of potentially risk elements from airborne particulate matter

Száková¹,

Sysalová²,

Tlustoš³

2005

PLANT SOIL ENVIRON

View full text Add to dashboard Cite

Two simple experiments were carried out to demonstrate two possible ways of environmental impact of element contents in airborne particulate ma�er. In the first part of the experiment, the response of three rural dust samples applied into the soil were assessed in pot experiment to observe uptake of As, Cd, Pb, and Zn by aboveground biomass of oat (Avena sativa L.). Although the element contents in dust samples exceeded significantly total element contents in soil, the element content in plants was not affected by single-rate soil amendment with rural dust sample. Soil sorption capacity and neutral pH of the experimental soil (7.0) was sufficient for immobilization of the elements. However, potentially mobilizable portions (0.005 mol/l DTPA extractable) of elements significantly increased (Cd by 116%, Pb by 39%, Zn by 50%) in the treated soil, which suggests a possible release of these elements in long-term horizon. On the contrary, high percentages of potentially toxic elements (Cd, Zn, Ni) in the most mobile (exchangeable) fractions were determined in the second part of investigation in two urban dust samples collected in Prague Letná automobile tunnel, and Prague subway station Museum. These results suggest possible direct impact of mobile, and thus potentially bio-available, element fractions on human environment. The results of both particular experiments cannot give complete information concerning behavior of harmful pollutants in airborne particulate ma�er and their influence on human health. They can however indicate two of possible ways of environmental pollution with this material. Yet, it would require a more detailed investigation in future.

show abstract

“…According to batch experiments, As (III) could be removed by aquifer materials through the mechanisms of oxidation and/or adsorption depending on the concentration of As (III), as well as the Mn:Fe ratio of the aquifer material (Amirbahman et al 2006). On the other hand, arsenate can be reduced to arsenite under low Eh conditions (Carbonell- Barrachina et al 1999), which can explain the extremely high concentration of 15.4 nM As (III) at CJPZ. The concentrations of nitrate in the groundwater of JZB are relatively high due to the lixiviation of fertilizers since the drainage basin is an intensively fertilized agricultural region (Zhu et al 2005).…”

Section: Atmospheric Depositionmentioning

confidence: 99%

Speciation and Seasonal Variations of Dissolved Inorganic Arsenic in Jiaozhou Bay, North China

Ren

Zhang

et al. 2007

Water Air Soil Pollut: Focus

View full text Add to dashboard Cite

The distributions and biogeochemical cycles of arsenic in the aquatic environment have captured the interest of geochemists due to arsenic's multiple chemical forms, the toxicity of certain arsenic species and large anthropogenic input. Seasonal variations in the dissolved inorganic arsenic concentration and speciation in Jiaozhou Bay, which is located on the west coast of the Yellow Sea in northern China, are presented here. Three cruises were carried out in Jiaozhou Bay under varying tidal regimes, one at neap tide and one at spring tide in August and one at spring tide in October of 2001. In addition to the transect surveys, the main sources of dissolved inorganic arsenate and arsenite in Jiaozhou Bay, including riverine input from five major tributary rivers, atmospheric dry and wet depositions, and groundwater and wastewater input, were collected in different seasons to estimate arsenic transport through different sources. The mean concentrations of total dissolved inorganic arsenic (TDIAs, As (V+III)) in Jiaozhou Bay were statistically comparable between summer and autumn, with higher concentrations at the northwest and northeast parts of the bay, reflecting human activities. The As (III)/TDIAs ratio ranged between 0.045 and 0.68, with an average of 0.16, implying that arsenate was the dominating species in Jiaozhou Bay. A preliminary box model was established to estimate the water-mass balance and arsenic budgets for Jiaozhou Bay, which demonstrated that river inputs and atmospheric depositions were the main sources of arsenic into Jiaozhou Bay. The concentrations of dissolved inorganic arsenic in Jiaozhou Bay have decreased in the last two decades. Compared with other areas in the world, the concentration of arsenic in Jiaozhou Bay remains at the natural level and this region can be characterized as a less disturbed area.

show abstract

The influence of redox chemistry and pH on chemically active forms of arsenic in sewage sludge-amended soil

Cited by 62 publications

References 18 publications

Transformation of beech forest litter as a factor that triggers arsenic solubility in soils developed on historical mine dumps

Transformation of beech forest litter as a factor that triggers arsenic solubility in soils developed on historical mine dumps

Particular aspects of environmental impact of potentially risk elements from airborne particulate matter

Speciation and Seasonal Variations of Dissolved Inorganic Arsenic in Jiaozhou Bay, North China

Contact Info

Product

Resources

About