WorldCat Identities

Parkin, Gene F.

Works: 18 works in 54 publications in 4 languages and 711 library holdings
Genres: Laboratory manuals 
Roles: Thesis advisor, Author
Classifications: TD193, 628.0154
Publication Timeline
Most widely held works by Gene F Parkin
Chemistry for environmental engineering by Clair N Sawyer( Book )

18 editions published between 1964 and 2003 in 3 languages and held by 373 WorldCat member libraries worldwide

Fundamentos de química para ingeniería ambiental - Conceptos básicos de química general - Conceptos básicos de fisicoquímica - Conceptos básicos de equilibrio químico - Conceptos básicos de química orgánica - Conceptos básicos de bioquímica - Conceptos básicos de química coloidal - Conceptos básicos de química nuclear - Análisis del agua y del agua residual - Conceptos básicos de química cuantitativa - Métodos instrumentales de análisis - Turbiedad - Color - Soluciones estándares - Ph - Acidez - Alcalinidad - Dureza - Cloro residual y demanda de cloro - Cloruros - Oxígeno disuelto - Demanda bioquímica de oxígeno - Demanda química de oxígeno - Nitrógeno - Sólidos - Hierro y manganeso - Flúor - Sulfato - Fósforo y fosfato - Aceite y grasa - Ácidos volátiles - Análisis de gases - Trazas de contaminantes
Chemistry for environmental engineering and science by Clair N Sawyer( Book )

18 editions published between 2002 and 2007 in English and Chinese and held by 303 WorldCat member libraries worldwide

'This is the definitive text in a market consisting of senior and graduate environmental engineering students who are taking a chemistry course. The text is divided into a chemistry fundamentals section and an applications section. In this new edition, the authors have retained the thorough, yet concise, coverage of basic chemical principles from general, physical, equilibrium, organic, biochemistry, colloid, and nuclear chemistry. In addition, the authors have retained their classic two-fold approach of (1) focusing on the aspects of chemistry that are particularly valuable for solving environmental problems, and (2) laying the groundwork for understanding water and wastewater analysis-a fundamental basis of environmental engineering practice and research.' from publisher's description
Huan jing gong cheng hua xue by Yu-min Zhang( Book )

2 editions published between 1999 and 2004 in Chinese and held by 15 WorldCat member libraries worldwide

Ben shu miao shu le huan jing gong cheng ji ben dan yuan suo she ji de hua xue zhi shi,You ji he wu ji wu ran wu de xing tai fen xi,You ji wu ran wu de jiang jie yu zhuan hua guo cheng,Zhong jin shu de fen li,Te bie shi huan jing gong cheng chu li dan yuan de hua xue dong li xue,Hua xue re li xue,Dian hua xue deng
The nature, ecological significance, and removal of soluble organic nitrogen in treated agricultural wastewaters by Gene F Parkin( Book )

2 editions published in 1973 in English and held by 5 WorldCat member libraries worldwide

Chemistry for environmental engineering and science by Clair Sawyer( )

1 edition published in 2003 in English and held by 1 WorldCat member library worldwide

Recovery of anaerobic digestion after exposure to toxicants : final report by Richard E Speece( Book )

1 edition published in 1981 in English and held by 1 WorldCat member library worldwide

Plant-assisted bioremediation of perchlorate and the effect of plants on redox conditions and biodiversity in low and high organic carbon soil by Garrett Cletus Struckhoff( )

1 edition published in 2009 in English and held by 1 WorldCat member library worldwide

At the increased ORP observed in planted HOC soil, the non-perchlorate-reducing bacteria appear to outcompete the perchlorate reducers and perchlorate removal is decreased. Engineering implications of this research are that perchlorate remediation in HOC soil does not benefit from planting hybrid poplar trees but that remediation in LOC soil is stimulated by planting and bioaugmentation
Nitrogen removal from wastewater by an aerated subsurface flow constructed wetland by Eric Redmond( )

1 edition published in 2012 in English and held by 1 WorldCat member library worldwide

The purpose of this research was to assess the ability of subsurface flow wetlands, with aeration and vegetation, to remove nitrogen in cold weather climates. Aeration was shown to enhance the wetland cell's ability to remove not only nitrogen but also CBOD, COD, and phosphorus (retention) more effectively. There was a significant difference (p<0.05) in both total nitrogen and ammonia effluent concentrations comparing aerated to unaerated wetland cells, while no significance was found comparing planted and unplanted wetland cells. The effluent ammonia concentrations from the aerated wetland cells ranged from 2.7 to 5.7 mg N/L, while for unaerated cells effluent concentration ranged from 22 to 23 mg N/L. The effluent total nitrogen concentrations from the aerated wetland cells ranged from 9.0 to 12 mg N/L, while those from unaerated cells ranged from 23 to 24 mg N/L. The effluent concentrations showed no significant difference (p <0.05) when comparing results of three temperature ranges. There is a correlation when comparing ammonia mass removal rates to mass loading rates. Ammonia removal in the aerated wetland cells ranged from 82 to 95%, while unaerated cells ranged from 39 to 45%. The hydraulic retention times ranged from 3.13 to 4.33 days and the tanks-in-series ranged from 1.46 to 2.84. Using this information the wetland cells were modeled using both the TIS and the PkC* models. The k values (PkC* model) of the aerated wetlands for ammonia ranged from 131 to 221 m/d, while the unaerated wetland cells had values ranging from 20.4 to 36.7 m/d. The models appear to show a good prediction of the effluent ammonia concentration for the unaerated cells but the aerated cells show the model does not effectively capture the effects of aeration
Microbial Methane Fermentation Kinetics for Toxicant Exposure( Book )

1 edition published in 1981 in English and held by 1 WorldCat member library worldwide

Methane fermentation of industrial wastes offers the dual potential of pollution abatement and energy conservation. This report presents results of experiments designed to investigate the effects of toxic substances on methane bacteria. Toxicants studied were calcium, cadmium, chromium, nickel, sulfide, chloroform, dichloroethylene, trichloroethylene, ethyl benzene, cationic surfactants, gasoline, jet fuel, and hydrazine. The effect of toxicant concentration, solids retention time, and temperature on methanogenic response, acclimation, and reversibility was studied. Experiments included slug and continuous addition of toxicants
Measuring mussel behavior and analyzing high frequency nitrate data to explore new phenomena in dynamic nutrient cycling by Jeremy Bril( )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

Labeled by the National Academy of Engineering (NAE) as one of fourteen Grand Challenges for Engineering, the management of the nitrogen cycle has become an increasingly difficult obstacle for sustainable development. In an effort to help overcome this challenge, the goal of our study is to expand on the limited scientific understanding of how the nitrogen cycle within aquatic environments may be affected by increasing human- and climate-induced changes. To this end, we are using freshwater mussels as a sentinel species to better understand the impacts of ecosystem perturbation on nitrogen processing in large river systems. This was completed by examining the physical, biological, and chemical characteristics of a mussel habitat in the Mississippi River, evaluating the impact of the 2008 floods on the habitat and the ecosystem's nutrient processing, establishing a well-equipped mussel laboratory habitat to investigate mussel behavioral responses, and analyzing highly time resolved data to examine the mussels' contribution to daily nitrate fluxes
Effects of carbon during Fe(II)-catalyzed Fe oxide recrystallization : implications for Fe and carbon cycling by Timothy Stephen Pasakarnis( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

The lack of interference by organic carbon indicates that Fe(II)-catalyzed Fe oxide recrystallization is likely to be relevant throughout a wide range of environments, and represents a significant process with regards to the geochemical cycling of Fe atoms, a claim supported by evidence of Fe(II)-driven isotope mixing in real soils. The movement of atoms during Fe(II)-catalyzed Fe oxide recrystallization is not limited to just Fe however. Multiple trace elements have been shown to exchange between the aqueous and solid phases along with Fe during the Fe(II)-catalyzed recrystallization of Fe oxides. The effect of organic carbon, both sorbed to the oxide surface and coprecipitated with the oxide, on Fe(II)-catalyzed atom exchange and transformation of ferrihydrite was studied. Again, the presence of organic carbon did not appear to influence Fe atom exchange kinetics. It also did not appear to influence the rapid transformation of ferrihydrite to lepidocrocite. The presence of organic carbon does appear to ultimately have implications for mineral transformation, as over longer time periods it stabilized lepidocrocite, preventing its subsequent transformation to magnetite or goethite
Huan jing gong cheng hua xue(xia) by Clair N Sawyer( Book )

1 edition published in 1995 in Chinese and held by 1 WorldCat member library worldwide

Design and construction of a horizontal subsurface flow constructed wetland and research facility by Matthew Sabbath Reusswig( )

1 edition published in 2009 in English and held by 1 WorldCat member library worldwide

Huan jing gong cheng hua xue(di wu ban) by Shao ye( Book )

1 edition published in 2004 in Chinese and held by 1 WorldCat member library worldwide

Partial nitritation-anammox using pH-controlled aeration in submerged attached growth bioreactors by James Murray Shannon( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

Total nitrogen and ammonia removal is a continuing challenge for wastewater treatment plants, especially those in the rural Upper Midwest United States. These challenges primarily consist of aeration costs and low removal efficiency in the winter. Submerged attached growth bioreactors (SAGBs) have been previously shown to remove total nitrogen and ammonium with timer-controlled aeration in cold climates. SAGB1 and SAGB2 were designed to remove total nitrogen via nitrification-denitrification with timer-controlled aeration. SAGB3 and SAGB4 with pH-controlled aeration were designed to remove total nitrogen and ammonium via partial nitritation-anammox from a low organic carbon synthetic wastewater at 20°C. Each SAGB was seeded with primary effluent from a local wastewater treatment plant and anammox seed from a wastewater treatment plant in Virginia that performs partial nitritration-anammox. Data, including nitrogen speciation, dissolved oxygen, pH, total organic carbon, and chemical oxygen demand, were routinely collected from each SAGB during a 48-hr study that occurred 3 months after anammox seeding. Effluent samples were taken every 30 minutes for the first 10 hours of the 48-hr study. Effluent data show that SAGB1 and SAGB2 removed 45% total nitrogen and 100% ammonium, while SAGB3 and SAGB4 removed 48-53% total nitrogen and 36-67% ammonium. It is estimated that 9.6-15.6 mg N/L and 7.3-15.8 mg N/L was removed via anammox in SAGB3 and SAGB4, respectively. Sample port data, collected every 2 hours, show an average accumulation of 1.7 mg NO2-N/L in SAGB3 and up to 0.4 mg NO2-N/L in SAGB4, which would facilitate anammox. The data also show 6-8 mg total inorganic nitrogen (TIN)/L less than the influent TIN in SAGB3 and SAGB4. Results from a DNA study suggest that anammox DNA was present in each SAGB and the anammox seed used in inoculation, 14 weeks after the 48-hr study. Over a 71-hr period, ammonium was removed (k=0.54/d) in the anaerobic anammox seed, suggesting that anammox activity occurred. Multiple lines of converging evidence, including anammox inoculation, nitrite accumulation, and TIN removal, suggest that SAGB3 and SAGB4 operated in partial nitritation-anammox mode during the intensive study
Sustainability of Long-Term Abiotic Attenuation of Chlorinated Ethenes( )

1 edition published in 2007 in English and held by 0 WorldCat member libraries worldwide

Mechanisms that may contribute to the attenuation of chlorinated ethene plumes. To this end, we measured the reduction of chlorinated ethenes by a series of chemically and microbially generated reductants under a range of natural conditions. During the project, we collected, synthesized, and characterized a variety of reductants and measured the extent and rate of PCE, TCE and cDCE reduction in batch reactors. The reductants included, (i) Fe(II) sorbed on Fe oxides, (ii) minerals containing Fe(II), such as iron sulfides (e.g., mackinawite) and green rusts, (iii) precipitates and supernatant collected from dissimilatory iron reducing (DIR) cultures of Shewanella species and an sulfate reducing bacterial (SRB) culture of Desulfovibrio desulfuricans, and (iii) sorbed and reduced natural organic matter (NOM) and NOM model compounds
Research needs workshop : hazardous wastes treatment and disposal, held Drexel University, Philadelphia PA, June 9-10, 1986( Book )

1 edition published in 1986 in English and held by 0 WorldCat member libraries worldwide

Fundamentals of anaerobic digestion of wastewater sludge by Gene F Parkin( Book )

in English and held by 0 WorldCat member libraries worldwide

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Audience level: 0.61 (from 0.57 for Chemistry ... to 1.00 for Microbial ...)

Chemistry for environmental engineering
Chemistry for environmental engineering and scienceChemistry for environmental engineering and science