Rapid methods for determining different types of sulphur compounds in soil

Smittenberg, J.; Harmsen, G. W.; Quispel, A.; Otzen, Daniel E.

doi:10.1007/bf01394032

Cited by 40 publications

(8 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hydrogen sulphide obtained by reduction can be determined by several methods, e.g., colorimetrically by the stain produced on lead acetate paper,28 iodimetrically direct,Z3 or by absorption in a solution of zinc and/or cadmium acetate, the precipitate being determined iodimetrically.ll9 lZ, 15, 20, 28 Kitchener et aLZ6 advocate the use of standard alkaline sodium hypochlorite solution for absorption of the hydrogen sulphide, which is stated to be a stoicheiometrically accurate method, although other authorsz7 find that the pH and temperature of oxidation are important factors.…”

Section: Reduction Methodsmentioning

confidence: 99%

Sulphur in soils.II.—Determination of the total sulphur content of soil

Little¹

1957

J Sci Food Agric

View full text Add to dashboard Cite

Published methods for the determination of total sulphur in soil are reviewed. A method is described for determining total sulphur in soil in which all the sulphur is reduced to sulphide by heating the soil with ferrum reductum. The sulphide is treated with acid and the evolved hydrogen sulphide estimated iodimetrically with standard alkaline hypochlorite solution as absorbent. The method is specific for sulphur. It has been found applicable to the determination of sulphur in soils of widely diverse origins and in many kinds of pure substances, both organic and inorganic. An error of ± 2.5% can be expected in the determination of total sulphur in soil.

show abstract

Section: Reduction Methodsmentioning

confidence: 99%

Sulphur in soils.II.—Determination of the total sulphur content of soil

Little¹

1957

J Sci Food Agric

View full text Add to dashboard Cite

show abstract

“…Several methods of determining the acidity potential (AP) have been proposed, for example: Smittenberg et al (1951); Neckers & Walker (1952); Murthy & Sharada (1960); Pons (1964); Petersen (1969); Aspiras et al (1972);Caruccio (1975);and Sorenson et al (1979). In Brazil, Soares et al (1997) used the "aqua regia" (HNO 3 :HCl 1:3) digestion as a simplified method to evaluate the total sulfide content in coal mining samples from Rio Grande do Sul.…”

Section: Introductionmentioning

confidence: 99%

Preliminary evaluation of acid mine drainage in Minas Gerais State, Brazil

Mello

Dias

Daniel³

et al. 2006

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

SUMMARYMining in the State of Minas Gerais-Brazil is one of the activities with the strongest impact on the environment, in spite of its economical importance. Amongst mining activities, acid drainage poses a serious environmental problem due to its widespread practice in gold-extracting areas. It originates from metalsulfide oxidation, which causes water acidification, increasing the risk of toxic element mobilization and water resource pollution. This research aimed to evaluate the acid drainage problem in Minas Gerais State. The study began with a bibliographic survey at FEAM (Environment Foundation of Minas Gerais State) to identify mining sites where sulfides occur. Substrate samples were collected from these sites to determine AP (acidity potential) and NP (neutralization potential). The AP was evaluated by the procedure of the total sulfide content and by oxygen peroxide oxidation, followed by acidity titration. The NP was evaluated by the calcium carbonate equivalent. Petrographic thin sections were also mounted and described with a special view to sulfides and carbonates. Based on the chemical analysis, the acid-base accounting (ABA) was determined by the difference of AP and NP, and the acid drainage potential obtained by the ABA value and the total volume of material at each site. Results allowed the identification of substrates with potential to generate acid drainage in Minas Gerais state. Altogether these activities represent a potential to produce between 3.1 to 10.4 billions of m 3 of water at pH 2 or 31.4 to 103.7 billions of m 3 of water at pH 3. This, in turn, would imply in costs of US$ 7.8 to 25.9 millions to neutralize the acidity with commercial limestone. These figures are probably underestimated because some mines were not surveyed, whereas, in other cases, surface samples may not represent reality. A more reliable state-wide evaluation of the acid drainage potential would require

show abstract

“…A review of literature concerning the analytical methods used to determine these forms of S indicates that the CHCl3-extraction method used for determination of elemental-S is highly specific for S° (11), but that the other methods can recover a variety of S species. The HC1 distillation method used for determination of sulfide-S completely recovers S in the form of sulfide, but it also partially recovers S in the form of thiosulfate (26%), thiocyanate (28%), and tetrathionate (6%) (12,13 Table 2 shows that a large portion of the sorbed H2S (average 79% for both air-dry and moist soils) was converted to S° during the sorption process. It also shows that only a small fraction (0.1% or less) of the S sorbed by soils exposed to H2S was in the form of sulfide and that the recovery of sorbed S as sulfate averaged only 5.9% with the air-dry soils and only 3.0% with the moist soils.…”

Section: Resultsmentioning

confidence: 99%

“…The exposure chamber and procedure was described in our previous papers on sorption of S gases by soils (8,9). The soil samples were then analyzed for total S, elemental-S (S°), sulfide-S, and sulfate-S. Total S was determined by the method of Tabatabai and Bremner (10), elemental S by the chloroform extraction method of Barrow (11), sulfide-S by determination of the H2S liberated by distillation with HC1 (12,13), and sulfate-S by the CaCte extraction method of Williams and Steinbergs (14). All analyses were performed in triplicate.…”

Section: Methodsmentioning

confidence: 99%

Characterization of the sulfur retained by soils exposed to hydrogen sulfide

Cihacek

Bremner

1993

Communications in Soil Science and Plant Analysis

View full text Add to dashboard Cite

We recently reported studies showing that air-dry and moist soils have substantial capacities for sorption of hydrogen sulfide (H 2 S) from air. Studies to characterize the S retained when air-dry and moist soils were exposed to air containing 2% H 2 S showed that a large fraction (average 79%) of this S was in the form of elemental S (S°) and that very little (0.1% or less) was in the form of sulfide. The recovery of sorted S as sulfate averaged 5.9% with the air-dry soils and 3.0% with the moist soils. The 42 soils used in this work were selected so that they differed markedly in physical and chemical properties. Statistical analyses of the relationships between these properties and the recovery of sorbed S as elemental S showed that this recovery was significantly correlated with the amount of soil Mn that was extractable by dithionite-citrate buffer. This suggests that Mn compounds in soils catalyze oxidation of sulfide-S to elemental-S when soils are exposed to air containing H 2 S.

show abstract

Rapid methods for determining different types of sulphur compounds in soil

Cited by 40 publications

References 2 publications

Sulphur in soils.II.—Determination of the total sulphur content of soil

Sulphur in soils.II.—Determination of the total sulphur content of soil

Preliminary evaluation of acid mine drainage in Minas Gerais State, Brazil

Characterization of the sulfur retained by soils exposed to hydrogen sulfide

Contact Info

Product

Resources

About