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How Healthy is the Upper Trinity River?: Biological and Water Quality Perspectives

Description: This conference report contains discussions and papers from a symposium hosted at Texas Christian University, in Fort Worth, Texas, examining the ecological health of the Upper Trinity River, and the impacts of various human activity, such as agriculture, urbanization, and waste management. The papers cover the effect of water quality on urban rivers, long-term water quality trends in the Trinity River, solutions that may improve water quality in the river, as well as biological, agricultural … more
Date: 1990
Creator: Jensen, Ric
Item Type: Refine your search to only Book
Partner: UNT Libraries

Phosphorus Retention and Fractionation in Masonry Sand and Light Weight Expanded Shale Used as Substrate in a Subsurface Flow Wetland

Description: Constructed wetlands are considered an inefficient technology for long-term phosphorus (P) removal. The P retention effectiveness of subsurface wetlands can be improved by using appropriate substrates. The objectives of this study were to: (i) use sorption isotherms to estimate the P sorption capacity of the two materials, masonry sand and light weight expanded shale; (ii) describe dissolved P removal in small (2.7 m3) subsurface flow wetlands; (iii) quantify the forms of P retained by the sub… more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: August 2002
Creator: Forbes, Margaret G.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Recovery of the Fish Population of a Municipal Wastewater Dominated, North Texas Creek After a Major Chlorine Disturbance

Description: This study evaluated the effects of a major chlorine disturbance on fish communities in Pecan creek by the City of Denton's Pecan Creek Water Reclamation Plant. Fish communities in Pecan Creek were sampled using a depletion methodology during February, April, July, and November, 1999. February and April sampling events showed that the fish communities were severely impacted by the chlorine. Sampling during July and November showed fish communities recovered in Pecan Creek. The first-twenty minu… more
Date: August 2002
Creator: Maschmann, Gerald F.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
captions transcript

[News Clip: Wastewater]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 22, 1981, 5:00 p.m.
Duration: 1 minute 22 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Sewage dumping]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 24, 1985
Duration: 50 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Federally Supported Water Supply and Wastewater Treatment Programs

Description: This report provides background information on the types of water supply and wastewater treatment projects traditionally funded by the federal government and the several existing programs to assist communities with water supply and wastewater recycling and treatment.
Date: March 19, 2010
Creator: Copeland, Claudia; Cody, Betsy A.; Carter, Nicole T.; Tiemann, Mary & Stubbs, Megan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

National Bioenergy Center Biochemical Platform Integration Project Quarterly Update, Number 28, Spring 2011

Description: Quarterly newsletter describing the activities of the National Bioenergy Center's Biochemical Platform Integration Project including ongoing research and goals. Issue topics: 33rd Symposium on Biotechnology for Fuels and Chemicals program sessions and special topic sessions; assessment of waste water treatment needs; and an update on new arabinose-to-ethanol fermenting Zymomonas mobilis strains.
Date: April 2011
Creator: National Renewable Energy Laboratory (U.S.)
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries Government Documents Department
open access

Conception and Design of Constructed Wetland Systems to Treat Wastewater at the Biosphere 2 Center with Use of Reaction Rate Models and the Habitat Evaluation Procedure to Determine the Effects of Designing for Wildlife Habitat on Treatment Efficiency

Description: A study was undertaken to explore relationships between wetland characteristics which make them efficient water purifiers versus their ability to serve as wildlife habitat. The effects of designing constructed wetlands for improved habitat on water treatment efficiencies were quantified. Results indicate that some sacrifice in treatment efficiency is required and that the degree of efficiency reduction is dependant upon pollutant loading rates. However, sacrifice in efficiency is much smaller t… more
Date: May 1998
Creator: Clingenpeel, Glenn C. (Glenn Christopher)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Pretreatment Optimization of Fiberglass Manufacturing Industrial Wastewater

Description: Wastewater effluent produced in the fiberglass manufacturing industry contains a significant amount of total suspended solids. Environmental regulations require pretreatment of effluent before it is discharged to the municipal wastewater treatment plant. Chemical precipitation by coagulation and flocculation is the method of pretreatment used at the Vetrotex CertainTeed Corporation (VCT). A treatability study was conducted to determine conditions at which the VCT Wastewater Pretreatment Plant c… more
Date: December 1998
Creator: Dragoo, Ron
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Biological and Toxicological Responses Resulting from Dechlorination of a Major Municipal Wastewater Treatment Plant Discharge to the Trinity River

Description: Federal regulations such as the Clean Water Act (P.L. 92-500), and its amendments, direct the Environment Protection Agency (EPA) to implement programs to control the releases of conventional pollutants and toxics into the waterways of the United States. The EPA began requiring treatment plants to conduct toxicity tests (biomonitoring) of their effluent discharges. To control toxicity caused by chlorination of wastewater discharges, the EPA also began requiring some treatment facilities to dech… more
Date: August 1995
Creator: Guinn, Richard J. (Richard Joe)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Concentrations of Triclosan in the City of Denton Wastewater Treatment Plant, Pecan Creek, and the Influent and Effluent of an Experimental Constructed Wetland

Description: The Pecan Creek Waste Reclamation Plant in Denton, Texas, an activated sludge WWTP, was sampled monthly for ten months to determine seasonal and site variation in concentrations of triclosan (5-chloro-2-(2,4-dichlorophenoxy)phenol), an antibacterial additive. SNK separation after the highly significant ANOVA on ranked data were: summer = fall > winter = spring and influent > downstream = effluent = wetland inflow > wetland outflow (a=0.05). After the plant converted to ultraviolet disinfection… more
Date: August 2004
Creator: Waltman, Elise Lyn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
captions transcript

[News Clip: Wastewater]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: May 18, 1977, 10:00 p.m.
Duration: 1 minute 12 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Small town water]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 27, 1981, 5:30 p.m.
Duration: 2 minutes 08 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Waste treatment]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 18, 1981, 5:30 p.m.
Duration: 2 minutes 11 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Federally Supported Water Supply and Wastewater Treatment Programs

Description: This report provides background information on the types of water supply and wastewater treatment projects traditionally funded by the federal government and the several existing programs to assist communities with water supply and wastewater recycling and treatment.
Date: April 18, 2007
Creator: Copeland, Claudia; Cody, Betsy A.; Carter, Nicole T.; Tiemann, Mary & Zinn, Jeffrey A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Federally Supported Water Supply and Wastewater Treatment Programs

Description: This report provides background information on the types of water supply and wastewater treatment projects traditionally funded by the federal government and the several existing programs to assist communities with water supply and wastewater recycling and treatment.
Date: August 26, 2008
Creator: Copeland, Claudia; Cody, Betsy A.; Carter, Nicole T. & Tiemann, Mary
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Federally Supported Water Supply and Wastewater Treatment Programs

Description: This report provides background information on the types of water supply and wastewater treatment projects traditionally funded by the federal government and the several existing programs to assist communities with water supply and wastewater recycling and treatment.
Date: March 18, 2015
Creator: Copeland, Claudia; Carter, Nicole T.; Cody, Betsy A.; Stubbs, Megan & Tiemann, Mary
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Animal Waste and Water Quality: EPA’s Response to the Waterkeeper Alliance Court Decision on Regulation of CAFOs

Description: In October 2008, the Environmental Protection Agency issued a regulation to revise a 2003 Clean Water Act rule governing waste discharges from large confined animal feeding operations. This report details the original 2003 rule, the Waterkeeper Alliance Decision and the EPA's 2008 revised rule.
Date: July 30, 2012
Creator: Copeland, Claudia
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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