Accession Number:

ADA029744

Title:

Wastewater Renovation by a Prototype Slow Infiltration Land Treatment System.

Descriptive Note:

Rept. for Jun 74-May 75,

Corporate Author:

COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Report Date:

1976-06-01

Pagination or Media Count:

54.0

Abstract:

The feasibility of a slow-infiltration land treatment system as an alternative to advanced waste treatment of wastewater was studied using six outdoor test cells. Wastewater was applied to forage grasses by spray irrigation. Parameters studied were wastewater application rate, effect of pretreatment and soil type and seasonal effects on the treatment system. Activated sludge pretreatment of the applied wastewater did not improve the overall quality of the product water from this slow-infiltration system. The uptake of nutrients by forage grasses accounted for significant removal of nitrogen and phosphorus from applied wastewater during the growing season. Other renovative mechanisms, namely nitrificationdenitrification of applied nitrogen and phosphorus immobilization and fixation by the soils may have accounted for further renovation of the applied effluents.

Subject Categories:

  • Physical Chemistry
  • Geology, Geochemistry and Mineralogy
  • Water Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE