Evaluation of land farming and chemico-biological stabilization for treatment of heavily contaminated sediments in a tropical environment

Adams, Randy H.; Guzmán-Osorio, F. J.

doi:10.1007/bf03326010

Cited by 24 publications

(17 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Prior to treatment, the contaminated sediment was characterized to determine its properties. Total petroleum hydrocarbons (TPH) were determined by EPA method 418.1 (EPA 1997) using perchloroethylene as an extraction solvent (Adams and Guzmán-Osorio 2008). The contaminated material was found to contain nearly 5 % TPH.…”

Section: Characteristics Of the Materials Treated (Initial)mentioning

confidence: 99%

“…Total petroleum hydrocarbon (TPH) concentration was determined using EPA method 418.1 (EPA 1997) with perchloroethylene as the extraction and measurement solvent (Adams and Guzmán-Osorio 2008). A silica gel cleanup of extracts was also employed to remove nonpetroleum organic materials.…”

Section: Hydrocarbon Concentrationmentioning

confidence: 99%

“…This method, called the chemical-biological stabilization process, was developed based on empirical observations of personnel in the state-run petroleum company, Petróleos Mexicanos (PEMEX), followed by systematic experimentation with respect to reagent order, dosing, and organic amendment type (Adams 2004a, b;Mayo-López et al 2010). It has also been compared with other, similar technologies and found to be as effective or more so in reducing toxicity and promoting revegetation (Adams and Guzmán-Osorio 2008). Furthermore, due to the simplified treatment process, the cost of this method is approximately 45 % less than conventional land farm bioremediation (Adams and Guzmán-Osorio 2008).…”

Section: Introductionmentioning

confidence: 99%

“…It has also been compared with other, similar technologies and found to be as effective or more so in reducing toxicity and promoting revegetation (Adams and Guzmán-Osorio 2008). Furthermore, due to the simplified treatment process, the cost of this method is approximately 45 % less than conventional land farm bioremediation (Adams and Guzmán-Osorio 2008). It can be used to treat drilling cuttings (Adams 2004a), high concentrations (5-11 %) of very weathered hydrocarbons (Adams et al 2005;Adams and Guzmán-Osorio 2008) and marshy soil co-contaminated with saline process water (Adams et al 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Compared to the prior investigations (Adams 2004a, b;Adams and Guzmán-Osorio 2008), the aims of this study were (1) conduct a field-scale test to evaluate implementation at a larger, industrial scale and (2) to determine how operating variables may affect performance in the long term. This research was carried out and monitored for nearly 3 years, between October 2007 and March 2010 in Cosoleacaque, Veracruz, Mexico.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Field-scale evaluation of the chemical–biological stabilization process for the remediation of hydrocarbon-contaminated soil

Adams

Guzmán-Osorio

Domínguez-Rodríguez

2013

Int. J. Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Developing countries face the challenge of growing their economy while reducing the negative environmental impacts of industry, thus requiring treatment technologies that are economical and effective. One recent technology developed in the tropical part of Mexico for the remediation of petroleum-contaminated soil was tested in this scale-up project at an industrial level, whereas previously it had only been tested at laboratory scale; 150 m 3 of bentonitic mud, contaminated with weathered hydrocarbons (3.4°API) at *50,000 ppm, was treated with 4 % Ca(OH) 2 , 4 % organic amendment, and a fine-root tropical grass. Hydrocarbons in soil and in leachates, as well as pH, and acute toxicity (Microtox) were monitored for 28.8 months. At the end of the study, basal respiration, root density, and earthworm toxicity were also measured. The hydrocarbon concentration in soil was reduced to 45 %, and toxicity was eliminated. Hydrocarbons in leachates were reduced to *1 mg/l, safe for human consumption. The pH adjustment depended on low soil moisture and was stabilized at 7.1. Intense revegetation resulted in good root density, within 90 % of nearby uncontaminated soil under pasture. Basal respiration was increased to levels comparable to uncontaminated tropical soils with agricultural use, pasture and gallery forest. At an industrial scale, strict moisture control was necessary for good pH stabilization. By controlling these conditions and applying this novel treatment process, it was possible to transform a heavily contaminated geological material into a non-toxic, fertile, soil-like substrate capable of maintaining a complete vegetative cover and microbial activity comparable to similar soils in a tropical environment.

show abstract

Section: Characteristics Of the Materials Treated (Initial)mentioning

confidence: 99%

Section: Hydrocarbon Concentrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Field-scale evaluation of the chemical–biological stabilization process for the remediation of hydrocarbon-contaminated soil

Adams

Guzmán-Osorio

Domínguez-Rodríguez

2013

Int. J. Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

Determination of suitable TPH remediation approach via MANOVA and inferential statistics assessment

Okonofua

Babatola

Ojuri

et al. 2020

Remediation Journal

View full text Add to dashboard Cite

Soil contamination resulting from petroleum hydrocarbon contaminants poses a fairly substantial hazard to human health and the environment. Phytoremediation, land farming, and chemico–biological stabilization were used to treat total petroleum hydrocarbons (TPHs) and polycyclic aromatic hydrocarbons (PAHs) at a crude oil polluted soil site in Nigeria. A field pilot study was conducted by preparing nine cells with subcells attached to each serving as a control with an overall area of 1.53 m2. A complete block design method was used for the study. The prepared soil sample cells were divided into three groups with each group having approximately 300 kg of soil and delineated as low, medium, and high test plots. The low samples were spiked with 6.1 kg of crude oil, the medium samples were spiked with 12.2 kg of crudeoil, and the high samples were spiked with 18.3 kg of crude oil. Each row containing three cells with low, medium, and high concentrations were treated separately using the three treatment methods. The ratio of the soil sample to the organic amendment for the treatments was 2:1. The results showed over 90% degradation in the initial concentration of TPH and PAHs across different contaminant levels except in the control subcells where only 30% of degradation was recorded. Multivariate analysis of variance was employed to assess the significant difference in each treatment group while inferential statistics using a mean performance plot was used to ascertain the optimum treatment method. Land farming, chemico–biological stabilization, and phytoremediation ranked 1, 2, and 3, respectively. In conclusion, the three treatment methods employed all degraded the contaminants (TPH and PAHs) with land farming emerging as the best method.

show abstract

Degradation of 2, 4, 6-trinitotoluene in aqueous solution by ozonation and multi-stage ozonation biological treatment

Diwani

Rafie

Hawash

2009

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

ABSTRACT:The objective of this study was to explore the extent of 2,4,6-trinitrotoluene synthetic solution and red water mineralization by comparing conventional direct ozonation and multi-stage ozonation-biological treatment process. The alkaline hydrolysis was used for remediation 2, 4, 6-trinitrotoluene and red water at pH = 10.9. Nevertheless, the hydroxyl radicals would be generated by ozone decomposition with ozone dose of 0.177 g/L. The samples were subjected to chemical oxygen demand and total organic carbon analysis to monitor pollutants removal. The rate of 2, 4, 6-trinitrotoluene and red water pollutants degradation were quantified using high performance liquid chromatography. 2, 4, 6-trinitrotoluene synthetic solution resulted 55.5 % chemical oxygen demand removal by 3 h direct ozonation. Following direct ozonation the biological treatment twenty four hours chemical oxygen demand reached 98.9 % and 98.7 % removal using humic acid and river water 1 % ( v/v) inoculation singly and respectively. Conventional direct ozonation showed non significant change in total organic carbon degradation. While on using multi-stage ozone-biological treatment process where humic acid and/or river water were used as inoculums singly and respectively, total organic carbon fulfilled 73 % and 98.3 % removal. The process was one hour direct ozonation and followed by three days multistage ozone-biological treatment. In multi-stage ozone-biological treatment process, ozonation was effective to decompose total organic carbon and to produce biodegradable dissolved organic carbon easily removed by ozone oxidation up to 98.3 % in 2,4,6-trinitrotoluene synthetic solution. Pollutants removal achieved 99 % in authentic red water effluent using river inoculation 1 % (v/v) in 5 days. Nuclear Magnetic Resonance and Fourier Transformation Infra Red methods were performed to confirm types of pollutants content in red water.

show abstract

Evaluation of land farming and chemico-biological stabilization for treatment of heavily contaminated sediments in a tropical environment

Cited by 24 publications

References 6 publications

Field-scale evaluation of the chemical–biological stabilization process for the remediation of hydrocarbon-contaminated soil

Field-scale evaluation of the chemical–biological stabilization process for the remediation of hydrocarbon-contaminated soil

Determination of suitable TPH remediation approach via MANOVA and inferential statistics assessment

Degradation of 2, 4, 6-trinitotoluene in aqueous solution by ozonation and multi-stage ozonation biological treatment

Contact Info

Product

Resources

About