biodegradability monitoring Articles

Biodegradation of Phenanthrene (PHE) was studied in aqueous culture to demonstrate the potential of the mixed culture in degrading high concentration of PHE. The experiments were conducted to monitor biodegradation of Phenanthrene for duration of 6 days. Biodegradation of PHE was successfully achieved in low and middle concentration by the isolated mixed culture. A full ...

Mar. 1, 2007

By University of Tehran

Abstract Contamination load and distribution of contaminants is shown. Gaiasafe Passive Collectors have been used successfully to determine single compounds out of the contamination load. Furthermore the spreading and biodegradation of contaminants was monitored over a large area in Abidjan. Only a few days after the dumping the chemical waste from Probo Koala was detected in the surface ...

Apr. 25, 2016

By gaiasafe GmbH

The present study was aimed towards the effective bio-treatment of actual industrial effluent containing as high as 42,000 mg/L COD (chemical oxygen demand), >28,000 ADMI (American Dye Manufacturers Institute) color value and four heavy metals using indigenous developed bacterial consortium TSR. Mineral salt medium supplemented with as low as 0.02% (w/v) yeast extract and glucose ...

May 7, 2015

By IWA Publishing

A probabilistic ecological risk assessment was conducted for the transformation products (TPs) of three β‐blockers (atenolol, metoprolol, and propranolol) and five selective serotonin re‐uptake inhibitors (SSRIs; citalopram, fluoxetine, fluvoxamine, paroxetine, and sertraline) to assess potential threats to aquatic organisms in effluent‐dominated surface waters. To this end, the ...

Mar. 27, 2015

By John Wiley & Sons, Ltd.

Introduction Prior operations at a former plating and hard anodizing facility in Santa Clara, California resulted in tetrachloroethene (PCE), trichloroethene (TCE), and cis-1,2-dichloroethene (DCE) impacts to soil and groundwater. In 1987, a groundwater monitoring program was implemented to monitor the plume. In 1998, CDM performed a natural attenuation evaluation for ...

Oct. 9, 2007

By Regenesis

In the mid-1990s, CDM began aggressive discussions with the regulatory agency to reduce regulatory and operational requirements at two sites in Santa Clara, CA -- TR W Microwave and Anadite Santa Clara. Both sites began usingtetrachloroethene (PCE) and trichloroethene (TCE) in manufacturing activities in the mid-1960s. Soil and groundwater were contaminated with PCE, TCE, and daughter products ...

Oct. 9, 2007

By Regenesis

INTRODUCTION Harding Lawson Associates (HLA) conducted a field demonstration to evaluate in situ enhanced anaerobic biodegradation of chlorinated solvents using Hydrogen Release Compound (HRC). The technology is designed to enhance the natural biodegradation process for a more rapid and complete degradation of the organic contaminants to non-toxic compounds (e.g., ethylene). This paper presents ...

Jan. 1, 2001

By Regenesis

This study investigated the use of ultraviolet (UV) and fluorescence spectroscopy to monitor the changes in biodegradability of dissolved organic matter (DOM) in landfill leachates. Experiments to investigate aerobic biodegradation of leachate DOM were carried out using untreated and treated leachate samples collected from two UK municipal solid waste landfills, L1 and L2. Leachate samples ...

Jun. 1, 2011

By IWA Publishing

Harding Lawson Associates (HLA) conducted a field demonstration to evaluate in situ enhanced anaerobic biodegradation of chlorinated solvents using Hydrogen Release Compound (HRC). The technology is designed to enhance the natural biodegradation process for a more rapid and complete degradation of the organic contaminants to non-toxic compounds (e.g., ethylene). This paper presents the results ...

Jan. 1, 2001

By Regenesis

Introduction Bioventing is a promising new technology that stimulates the natural in situ biodegradation of any aerobically degradable compounds in soil by providing oxygen to existing soil microorganisms. In contrast to soil vapor vacuum extraction, bioventing uses low air flow rates to provide only enough oxygen to sustain microbial activity. Oxygen is most commonly supplied through direct air ...

Jan. 1, 1997

By Federal Remediation Technologies Roundtable