Detlef R Knappe

Improved Darcian streambed measurements to quantify flux and mass discharge of volatile organic compounds from a contaminated aquifer to an urban stream

JOURNAL OF CONTAMINANT HYDROLOGY, 253.

Pilot-scale biofiltration of 1,4-dioxane at drinking water-relevant concentrations

WATER RESEARCH, 231.

Predicting Concentration- and Ionic-Strength-Dependent Air-Water Interfacial Partitioning Parameters of PFASs Using Quantitative Structure-Property Relationships (QSPRs)

Stults, J. F., Choi, Y. J., Rockwell, C., Schaefer, C. E., Nguyen, D. D., Knappe, D. R. U., … Higgins, C. P. (2023, March 24). ENVIRONMENTAL SCIENCE & TECHNOLOGY.

Removal and destruction of perfluoroalkyl ether carboxylic acids (PFECAs) in an anion exchange resin and electrochemical oxidation treatment train

WATER RESEARCH, 230.

Source apportionment of serum PFASs in two highly exposed communities

SCIENCE OF THE TOTAL ENVIRONMENT, 855.

Diffusion of benzene and tetrachloroethylene through saturated cement paste

CONSTRUCTION AND BUILDING MATERIALS, 329.

Drinking Water-Associated PFAS and Fluoroethers and Lipid Outcomes in the GenX Exposure Study

ENVIRONMENTAL HEALTH PERSPECTIVES, 130(9).

Extraction and Matrix Cleanup Method for Analyzing Novel Per- and Polyfluoroalkyl Ether Acids and Other Per- and Polyfluoroalkyl Substances in Fruits and Vegetables

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 70(16), 4792–4804.

Impact of ozone-biologically active filtration on the breakthrough of Perfluoroalkyl acids during granular activated carbon treatment of municipal wastewater effluent

WATER RESEARCH, 223.

Mechanisms of orthophosphate removal from water by lanthanum carbonate and other lanthanum-containing materials

SCIENCE OF THE TOTAL ENVIRONMENT, 820.

PFAS Challenges and Novel Research A Conversation With the Editorial Board of the AWWA Water Science Topical Collection on PFAS Analytics and Treatment

Crimi, M., Speth, T. F., Chowdhury, Z. K., Dickenson, E. R. V., Knappe, D. R. U., & Liu, J. (2022, September). JOURNAL AWWA, Vol. 114, pp. 13–22.

Per- and polyfluoroalkyl substances (PFAS) in river discharge: Modeling loads upstream and downstream of a PFAS manufacturing plant in the Cape Fear watershed, North Carolina

SCIENCE OF THE TOTAL ENVIRONMENT, 831.

Per- and polyfluoroalkyl substances in the environment

[Review of ]. SCIENCE, 375(6580), 512-+.

Stability of Per- and Polyfluoroalkyl Substances in Solvents Relevant to Environmental and Toxicological Analysis br

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 56(10), 6103–6112.

Tools for Understanding and Predicting the Affinity of Per- and Polyfluoroalkyl Substances for Anion-Exchange Sorbents br

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 56(22), 15470–15477.

Biochar Water Treatment for Control of Organic Micropollutants with Ultraviolet A Surrogate Monitoring

ENVIRONMENTAL ENGINEERING SCIENCE, 38(5), 298–309.

From Pesticides to Per- and Polyfluoroalkyl Substances: An Evaluation of Recent Targeted and Untargeted Mass Spectrometry Methods for Xenobiotics

[Review of ]. ANALYTICAL CHEMISTRY, 93(1), 641–656.

Influence of natural organic matter and pH on phosphate removal by and filterable lanthanum release from lanthanum-modified bentonite

Water Research, 202, 117399.

Per- and Polyfluoroalkyl Substance (PFAS) Transport from Groundwater to Streams near a PFAS Manufacturing Facility in North Carolina, USA

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 55(9), 5848–5856.

Per- and polyfluoroalkyl substances (PFAS)-contaminants of emerging concern

Baker, E. S., & Knappe, D. R. U. (2021, December 2). ANALYTICAL AND BIOANALYTICAL CHEMISTRY, Vol. 12.

Assessing the Effectiveness of Point-of-Use Residential Drinking Water Filters for Perfluoroalkyl Substances (PFASs)

ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS, 7(3), 178–184.

Assessment of the breakthrough of micropollutants in full-scale granular activated carbon adsorbers by rapid small-scale column tests and a novel pilot-scale sampling approach

ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY, 6(10), 2742–2751.

Degradation Model for the Tensile Strength of PVC and Rubber Gasket Materials Exposed to Benzene and PCE-Saturated Aqueous Solutions

TRANSPORTATION RESEARCH RECORD, 2674(2), 274–283.

Elevated levels of per- and polyfluoroalkyl substances in Cape Fear River Striped Bass (Morone saxatilis) are associated with biomarkers of altered immune and liver function

ENVIRONMENT INTERNATIONAL, 136.

Emerging lanthanum (III)-containing materials for phosphate removal from water: A review towards future developments

[Review of ]. ENVIRONMENT INTERNATIONAL, 145.

Enabling Organic Micropollutant Removal from Water by Full-Scale Biochar and Activated Carbon Adsorbers Using Predictions from Bench-Scale Column Data

ENVIRONMENTAL ENGINEERING SCIENCE, 37(7), 459–471.

GAC to BAC: Does it make chloraminated drinking water safer?

WATER RESEARCH, 172.

Measurement of Novel, Drinking Water-Associated PFAS in Blood from Adults and Children in Wilmington, North Carolina

ENVIRONMENTAL HEALTH PERSPECTIVES, 128(7).

Pilot scale removal of per- and polyfluoroalkyl substances and precursors from AFFF-impacted groundwater by granular activated carbon

ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY, 6(4), 1083–1094.

Scientific Basis for Managing PFAS as a Chemical Class

ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS, 7(8), 532–543.

Treating water containing elevated bromide and iodide levels with granular activated carbon and free chlorine: impacts on disinfection byproduct formation and calculated toxicity

ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY, 6(12), 3460–3475.

1,4-Dioxane in drinking water: emerging for 40 years and still unregulated

Current Opinion in Environmental Science & Health, 7, 117–125.

Does Granular Activated Carbon with Chlorination Produce Safer Drinking Water? From Disinfection Byproducts and Total Organic Halogen to Calculated Toxicity

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 53(10), 5987–5999.

Does Granular Activated Carbon with Chlorination Produce Safer Drinking Water? From Disinfection Byproducts and Total Organic Halogen to Calculated Toxicity

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 53(10), 5987–5999.

Effects of Co-occurring Species Present in Swine Lagoons on Adsorption of Copper on Eggshell

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH, 13(4), 613–622.

Fate of Per- and Polyfluoroalkyl Ether Acids in the Total Oxidizable Precursor Assay and Implications for the Analysis of Impacted Water

Environmental Science & Technology Letters, 6(11), 662–668.

High Temperature Co-pyrolysis Thermal Air Activation Enhances Biochar Adsorption of Herbicides from Surface Water

ENVIRONMENTAL ENGINEERING SCIENCE, 36(6), 710–723.

Evaluation of Waste Eggshells for Adsorption of Copper from Synthetic and Swine Wastewater

Transactions of the ASABE, 61(3), 967–976.

Evaluation of cVOC Removal Efficiencies by Various Technologies

(Executive Summary No. 4492). Denver, Colorado: Water Research Foundation.

Recently Detected Drinking Water Contaminants: GenX and Other Per- and Polyfluoroalkyl Ether Acids

Journal - American Water Works Association, 110(7), 13–28.

Prediction of Full-Scale GAC Adsorption of Organic Micropollutants

ENVIRONMENTAL ENGINEERING SCIENCE, 34(7), 496–507.

Determination of 1,4-Dioxane in the Cape Fear River Watershed by Heated Purge-and-Trap Preconcentration and Gas Chromatography-Mass Spectrometry

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 50(5), 2246–2254.

Environmental Comparison of Biochar and Activated Carbon for Tertiary Wastewater Treatment

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 50(20), 11253–11262.

Evaluation of Henry’s Law Constants and Freundlich Adsorption Constants for VOCs

(Executive Summary No. 4462). Denver, Colorado: Water Research Foundation.

Legacy and Emerging Perfluoroalkyl Substances Are Important Drinking Water Contaminants in the Cape Fear River Watershed of North Carolina

ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS, 3(12), 415–419.

Survey of Existing VOC Treatment Installations

(Executive Summary No. 4453). Denver, Colorado: Water Research Foundation.

Feasibility of Using Traditional Kiln Charcoals in Low-Cost Water Treatment: Role of Pyrolysis Conditions on 2,4-D Herbicide Adsorption

ENVIRONMENTAL ENGINEERING SCIENCE, 32(11), 912–921.

Full- and pilot-scale GAC adsorption of organic micropollutants

WATER RESEARCH, 68, 238–248.

Meeting multiple water quality objectives through treatment using locally generated char: improving organoleptic properties and removing synthetic organic contaminants and disinfection by-products

JOURNAL OF WATER SANITATION AND HYGIENE FOR DEVELOPMENT, 5(3), 359–372.

Removal of perfluoroalkyl substances by PAC adsorption and anion exchange

(Executive Summary No. 4344). Denver, Colorado: Water Research Foundation.

Removal of volatile organic contaminants (VOCs) from drinking water via granular activated carbon treatment

(Final Report No. 4440). Denver, Colorado: Water Research Foundation.

2,4-D adsorption to biochars: Effect of preparation conditions on equilibrium adsorption capacity and comparison with commercial activated carbon literature data

WATER RESEARCH, 62, 20–28.

Evaluation of Available Scale-up Approaches for the Design of GAC Contactors

(Final Report No. 4235). Denver, Colorado: Water Research Foundation.

Fertilization of Radishes, Tomatoes, and Marigolds Using a Large-Volume Atmospheric Glow Discharge

Plasma Chemistry and Plasma Processing, 34(6), 1271–1290.

Synthetic organic water contaminants in developing communities: an overlooked challenge addressed by adsorption with locally generated char

JOURNAL OF WATER SANITATION AND HYGIENE FOR DEVELOPMENT, 4(3), 422–436.

DBP Precursor and Micropollutant Removal by Powdered Activated Carbon

(Executive Summary No. 4294). Denver, Colorado: Water Research Foundation.

Removal of highly polar micropollutants from wastewater by powdered activated carbon

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 20(6), 3607–3615.

The effect of aging on the bioavailability of toluene sorbed to municipal solid waste components

CHEMOSPHERE, 90(2), 251–259.

Characteristics of competitive adsorption between 2-methylisoborneol and natural organic matter on superfine and conventionally sized powdered activated carbons

WATER RESEARCH, 46(15), 4741–4749.

Fate and transport of phenol in a packed bed reactor containing simulated solid waste

WASTE MANAGEMENT, 32(2), 327–334.

Adsorption of Organic Compounds by Activated Carbon

In J. K. Edzwald (Ed.), Water quality & treatment : a handbook on drinking water (6th ed.). New York, NY: McGraw-Hill.

Characterization of natural organic matter adsorption in granular activated carbon adsorbers

WATER RESEARCH, 45(13), 3951–3959.

Evaluation of Computational Fluid Dynamics for Modeling UV-Initiated Advanced Oxidation Processes

(Final Report No. 3176). Denver, Colorado: Water Research Foundation.

Transformation kinetics of biochemically active compounds in low-pressure UV Photolysis and UV/H2O2 advanced oxidation processes

WATER RESEARCH, 45(15), 4531–4543.

Factors Controlling Alkylbenzene and Tetrachloroethene Desorption from Municipal Solid Waste Components

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 44(3), 1123–1129.

Impact of Plastics on Fate and Transport of Organic Contaminants in Landfills

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 44(16), 6396–6402.

Modeling the UV/hydrogen peroxide advanced oxidation process using computational fluid dynamics

WATER RESEARCH, 44(6), 1797–1808.

Removal of 2-Methylisoborneol and Geosmin by High-Silica Zeolites and Zeolite-Enhanced Ozonation

(Executive Summary No. Project #3169). Denver, Colorado: Water Research Foundation.

Effect of Free Chlorine Application on Microbial Quality of Drinking Water in Chloraminated Distribution Systems

Journal AWWA, 101(10), 60–70.

Removal of emerging contaminants of concern by alternative adsorbents

WATER RESEARCH, 43(15), 3787–3796.

Transport and release of chemicals from plastics to the environment and to wildlife

[Review of ]. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 364(1526), 2027–2045.

A Review of Chemical Warfare Agent Simulants for the Study of Environmental Behavior

Critical Reviews in Environmental Science and Technology, 38(2), 112–136.

MTBE adsorption on alternative adsorbents and packed bed adsorber performance

WATER RESEARCH, 42(8-9), 2287–2299.

Alternative Adsorbents for the Removal of Polar Organic Contaminants

(Executive Summary No. Project #2905). Denver, Colorado: American Water Works Association Research Foundation.

A procedure to quantify organic antistrip additives in asphalt binders and mixes

Journal of Testing and Evaluation, 34(4), 269–274.

Fate of chemical warfare agents and toxic industrial chemicals in landfills

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 40(13), 4219–4225.

Quantitative Determination of and Effect of Prolonged Heating on Amine-Based Antistrip Additive Contents in Asphalt Binders and Mixes

Journal of the Association of Asphalt Paving Technologists, 75, 1095–1119.

Surface chemistry effects in activated carbon adsorption of industrial pollutants

In Interface Science and Technology (pp. 155–177).

Effectiveness of high-silica zeolites for the adsorption of methyl tertiaty-butyl ether from natural water

Leading-Edge Technology 2005 - Water Treatment, Vol. 5, pp. 83–91.

Effects of activated carbon characteristics on the simultaneous adsorption of aqueous organic micropollutants and natural organic matter

WATER RESEARCH, 39(8), 1663–1673.

Predicting adsorption isotherms for aqueous organic micropollutants from activated carbon and pollutant properties

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 39(9), 3393–3400.

Algae detection and removal strategies for drinking water treatment plants

Denver Colo.: AWWA Research Foundation and American Water Works Association.

Chemical characterization and sorption capacity measurements of degraded newsprint from a landfill

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 38(13), 3542–3550.

Effect of cellulose/hemicellulose and lignin on the bioavailability of toluene sorbed to waste paper

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 38(13), 3731–3736.

Intraparticle diffusion and adsorption of arsenate onto granular ferric hydroxide (GFH)

WATER RESEARCH, 38(18), 4002–4012.

NOM and MIB, who wins in the competition for activated carbon adsorption sites?

WATER SCIENCE AND TECHNOLOGY, Vol. 49, pp. 257–265.

Effects of Activated Carbon Surface Chemistry and Pore Structure on the Adsorption of Trichloroethene and Methyl Tertiary-Butyl Ether from Natural Water

[Executive Summary]. Denver, Colorado: American Water Works Association Research Foundation.

Effects of activated carbon surface chemistry and pore structure on the adsorption of organic contaminants from aqueous solution

CARBON, 40(12), 2085–2100.

In the (adsorption) competition between NOM and MIB, who is the winner, and why?

Water Science and Technology: Water Supply, 2(2), 59–67.

Optimizing ferric sulfate coagulation of algae with streaming current measurements

Journal (American Water Works Association), 94(2), 80–90.

Pesticide adsorption by granular activated carbon adsorbers. 1. Effect of natural organic matter preloading on removal rates and model simplification

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 36(15), 3426–3431.

Pesticide adsorption by granular activated carbon adsorbers. 2. Effects of pesticide and natural organic matter characteristics on pesticide breakthrough curves

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 36(15), 3432–3438.

Simultaneous adsorption of MIB and NOM onto activated carbon - II. Competitive effects

CARBON, 40(12), 2147–2156.

Effectiveness of coagulants and coagulant aids for the removal of filter-clogging Synedra

JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA, 50(3), 135–148.

Factors controlling alkylbenzene sorption to municipal solid waste

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 35(22), 4569–4576.

The fate of toluene, acetone and 1,2-dichloroethane in a laboratory-scale simulated landfill

Water Research, 34(12), 3063–3074.

Atrazine removal by preloaded GAC

JOURNAL AMERICAN WATER WORKS ASSOCIATION, 91(10), 97–109.

Optimization of coagulation conditions for the removal of algae

Proceedings of the American Water Works Association Annual Conference, Dallas, TX, June 21-25, 1998, 90(1998 June).

Predicting the capacity of powdered activated carbon for trace organic compounds in natural waters

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 32(11), 1694–1698.

Strategies for algae removal in conventional treatment

Proceedings of the American Water Works Association Annual Conference, Dallas, TX, June 21-25, 1998, 90(1998 June).

Strategies for algae removal in drinking water treatment

In Report (Water Resources Research Institute of the University of North Carolina). Raleigh, NC: University of North Carolina Water Resources Research Institute.

Toluene sorption, humification and biodegradation in excavated refuse: A high organic carbon sorbent

1998 Spring Meeting, American Geophysical Union, Boston, MA, May 26-29, 1998, (1998 May).

The effect of GAC service time on the adsorption of periodic episodes of atrazine

Proceedings of the American Water Works Association Annual Conference, Atlanta, GA, June 15-19, 1997, 89(1997 June).

The effect of preloading on rapid small-scale column test predictions of atrazine removal by GAC adsorbers

WATER RESEARCH, 31(11), 2899–2909.

Effect of Calcium on Thermal Regeneration of GAC

Journal - American Water Works Association, 84(8), 73–80.