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Bioflocculation: Implications for Activated Sludge Properties and Wastewater Treatment
(Virginia Tech, 1998-07-23)
Studies were conducted to determine the role of bioflocculation in the activated sludge unit processes. Laboratory and full-scale studies revealed that bioflocculation is important in determining settling, dewatering, ...
Extracellular Polymeric Substances in Activated Sludge Flocs: Extraction, Identification, and Investigation of Their Link with Cations and Fate in Sludge Digestion
(Virginia Tech, 2007-08-01)
<p> Extracellular polymeric substances (EPS) in activated sludge are known to account for the flocculent nature of activated sludge. Extensive studies over the last few decades have attempted to extract and characterize ...
In situ characterization and quantification of phytoremediation removal mechanisms for naphthalene at a creosote-contaminated site
(Virginia Tech, 2006-01-23)
Rikke Granum Andersen
In situ characterization and quantification of phytoremediation removal mechanisms for naphthalene at a creosote-contaminated site
Phytoremediation is an attractive remediation technology due to its ...
Sorption and biodegradation of phenanthrene in soils
(Virginia Tech, 1994-05-05)
<p>Soils and groundwaters face an influx of contaminants, many of which are
known to be hazardous to the public's health. Several remediation technologies have
been developed to clean-up contaminated soils, but additional ...
Shear Forces, Floc Structure and their Impact on Anaerobic Digestion and Biosolids Stability
(Virginia Tech, 2006-07-20)
<p> This study was conducted to address the controlling factors of biosolids stability as they relate to mesophilic anaerobic digestion, dewatering processes and digestion enhancement by wet sludge disintegration technologies. ...
Management strategy of landfill leachate and landfill gas condensate
(Virginia Tech, 2012-08-27)
Studies were conducted to evaluate the impact of landfill leachate discharge on the operation of waste water treatment plants (WWTPs). Two aspects of interferences were found: one is UV quenching substances, which are ...
The effects of ozone treatment on chemical parameters of a recirculating aquaculture system producing hybrid striped bass
(Virginia Tech, 1994-08-05)
The hypothesis tested in this study is that the application of ozone to reuse aquaculture water provides more favorable conditions for hybrid striped bass at production levels. Evaluation of water quality in fish culture ...
Reversible and irreversible adsorption of naphthalene and α-naphthol to soil
(Virginia Tech, 1995-05-03)
Experiments were performed with naphthalene and a-naphthol to compare the
processes involved in the sorption of a polycyclic aromatic hydrocarbon (PAH) and its
metabolite, respectively, and to assess the bioavailability ...
Polycyclic Aromatic Hydrocarbons and Redox Parameters in a Creosote-Contaminated Aquifer
(Virginia Tech, 2001-02-05)
A groundwater monitoring study was conducted as part of a comprehensive program to remediate a former wood-preserving site that was contaminated with creosote. Twenty-five multi-level samplers (MLSs) were installed on-site ...
Fate and Transport of Endocrine Disrupting Compounds during Wastewater Treatment: The Role of Colloidal and Particulate Material
(Virginia Tech, 2003-07-22)
The presence of biologically-active estrogenic endocrine disrupting compounds (EDCs) in treated effluents from biological wastewater treatment facilities has prompted wide-spread interest in the behavior of these contaminants ...