Effects of Seeding Compost Filter Berms: Water Quality and Structural Performance Study

This study examined the effect of seeding on the performance of compost filter berms when used as an erosion and sediment control best management practice during construction. The two main objectives of the research were to determine the effect of seeding on the water quality and structural stability of the berms. Three compost types were tested: dairy manure, biosolids and yard waste, using a mixture of 50:50 compost and uncomposted wood chips. Each berm alternative was subjected to three repetitions of the sheet flow simulation. The berms were placed in a channel with a 33(H):1(V) centerline gradient with clay soil base. All tests used potable water with a water quality test flow rate of 0.007 m3/s [0.25 cubic feet per second (cfs)] and up to 0.0098 m3/s (0.35 cfs) for structural stability testing. Results showed that the seeded compost filter berms significantly outperformed the un-seeded berms in both water quality and structural integrity. Seeding helped improve the effluent water quality by reducing the contaminants, and seemingly enhanced the structural stability of the berms. The effluent constituent levels did not reach a level to warrant concerns; the concern lies in the compost suspended and transported by the flowing water upon berm failure.

Language

  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Photos; References; Tables;
  • Pagination: 15p
  • Monograph Title: TRB 86th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

Filing Info

  • Accession Number: 01046088
  • Record Type: Publication
  • Report/Paper Numbers: 07-2470
  • Files: TRIS, TRB
  • Created Date: Feb 8 2007 7:10PM