Title - Alternative

Optimal Design of Stormwater Basins with Bio-Sorption Activated Media (BAM) in Karst Environments – Phase II: Field Testing of BMPs

Preferred Title

Optimal Design of Stormwater Basins with Bio-Sorption Activated Media (BAM) in Karst Environments – Phase II: Field Testing of BMPs

Keywords

Karst, stormwater BMPs, roadway runoff, blanket filter, Biosorption Activated Media, vertical reactor, nitrogen

Abstract

Two new designs of stormwater Best Management Practices (BMPs) using Biosorption Activated Media (BAM) were developed, implemented, and tested: (1) blanket filters, located within a stormwater management facility, and (2) vertical infiltration reactors. The blanket filter, comprised of a 1-ft top-soil layer and 3-ft BAM layer, removed 60%-66% of TN, NOx, and NH3 from roadway runoff. Mean removals of total nitrogen (TN), nitrate-nitrite (NOx), and ammonia (NH3) within a 3-ft top-soil layer (containing no BAM) range from 78%-92%, exceeding mean removals observed in the blanket filter. Within a blanket filter, a 3-ft BAM layer removes considerably more nitrogen, and particularly NOx, as compared to 1.5-ft layer of BAM. Similarly, a 3-ft soil layer above the BAM layer may remove considerably more nitrogen as compared to a 1-ft soil layer. It is estimated that through a 20- to 30-year design life, the cost of each pound of TN removed by blanket filters (a 3-ft layer of BAM placed in the vadose zone with 1-ft soil coverage) is $611-$715, while each pound of NOx removed will cost $1,360-$1,590. Of six media configurations tested within vertical reactors, nitrogen removal was best achieved by a 4-ft layer of BAM; a mean 49% TN and over 53% NOx was removed from incoming stormwater. It is estimated that through a 20- to 30-year design life, the cost of each pound of TN removed by vertical reactors placed in the vadose zone is $453-$498. It is estimated that each pound of NOx removed will cost $701-$732.

Contributors

Dr. Kelly M. Kibler, Dr. Ni-Bin Chang, Dr. Martin P. Wanielista, Dr. Dan Wen, Mr. Mohammad Shokri, Ms. Andrea Valencia, Mr. Eranildo Lustoso-Alves Jr., and Mr. Nyle Rice

Date Created

Spring 3-2020

Semester

Spring

Type

Publication

College

College of Engineering and Computer Science

Unit

CECE

Type

article

BDV24 977-20_Task 1a- BMP Design Report_Feb2017.pdf (4589 kB)
Task 1a BMP Design report

BDV24 977-20_Task 1b- BMP Design Compliance Report_Feb2017.pdf (4394 kB)
Task 1b BMP Design Compliance Report

BDV24 977-20_Task 2a- BMP Construction Report_June2017.pdf (12356 kB)
Task 2a BMP Construction Report

BDV24 977-20_Task 2b- BMP Construction Compliance Report_June2017.pdf (633 kB)
Task 2b BMP Construction Compliance Report

BDV24 977-20_Task 3a- BMP Preliminary Testing Report.pdf (5626 kB)
Task 3a BMP Preliminary Testing Report

BDV24 977-20_Task 3b- BMP Testing Report.pdf (6355 kB)
Task 3b BMP Testing Report

BDV24 977-20_Task 4- BMP Life-cycle Assessment Report.pdf (1541 kB)
Task 4 BMP Life-cycle Assessment Report

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