Evaluation of the storm-water treatment facilities at the Lake Angel detention pond, Orange County, Florida. Final report, 2 Jan 90-1 Jul 91

Technical Report · Sat Jun 01 04:00:00 EDT 1991

OSTI ID:5406485

Wanielista, M; Charba, J; Dietz, J; Russell, B

This is the final report on the use of Granulated Active Carbon (GAC) beds of Filtrasorb 400 in series to reduce the Trihalomethane Formation Potential (THMFP) concentrations at the Lake Angel detention pond, Orange County, Florida. The detention pond accepts runoff from an interstate highway and a commercial area. Breakthrough time was estimated from laboratory analyses and used to design two beds in series at the detention pond. Breakthrough occurred in the first bed after treating 138,000 liters of water. Exhaustion of the first bed was reached after treating 1270 bed volumes with a sorption zone length of 1.70 feet. The TOC adsorbed per gram of GAC was 6.3 mg. The liquid flow rate averaged 0.0011 cfs. Similar breakthrough curves for Total Organic Carbon (TOC) and color were also reported. The used GAC can be disposed of by substituting it for sand in concrete mixes. An economic evaluation of the GAC system at Lake Angel demonstrated an annual cost of $4.39/1000 gallons to treat the stormwater runoff after detention and before discharge into a drainage well. The cost could be further reduced by using the stormwater to irrigate right-of-way sections of the watershed. An alternative method of pumping to another drainage basin was estimated to be more expensive. The underdrain network for the GAC system initially became clogged with the iron- and sulfur-precipitation bacteria Leptothrix, Gallionella and Thiothrix. These bacteria were substantially reduced by altering the influent GAC system pipeline to take water directly from the lake. An alternate pipe system used a clay layer to reduce ground water inputs and did not exhibit substantial bacterial growth.

• Research Organization: University of Central Florida, Orlando, FL (United States). Dept. of Civil Engineering and Environmental Sciences
• OSTI ID: 5406485
• Report Number(s): PB-92-161157/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ADSORPTION
AQUIFERS
BACTERIA
BUILDINGS
CHLORINATED ALIPHATIC HYDROCARBONS
COMMERCIAL BUILDINGS
CONTROL
DEVELOPED COUNTRIES
ECOLOGICAL CONCENTRATION
ECONOMIC ANALYSIS
ECONOMICS
ENVIRONMENTAL TRANSPORT
EVALUATION
FIELD TESTS
FLORIDA
HALOGENATED ALIPHATIC HYDROCARBONS
MASS TRANSFER
MICROORGANISMS
NORTH AMERICA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
POLLUTION
POLLUTION CONTROL
PONDS
RUNOFF
SORPTION
SURFACE WATERS
TESTING
USA
WATER POLLUTION
WATER POLLUTION CONTROL
WATER SUPPLY
WATER TREATMENT PLANTS