Phosphorus removal in denitrifying woodchip bioreactors varies by wood type and water chemistry.

ABSTRACT: Denitrifying woodchip bioreactors are a practical nitrogen (N) mitigation technology but evaluating the potential for bioreactor phosphorus (P) removal is highly relevant given that (1) agricultural runoff often contains N and P, (2) very low P concentrations cause eutrophication, and (3) there are few options for removing dissolved P once it is in runoff. A series of batch tests evaluated P removal by woodchips that naturally contained a range of metals known to sorb P and then three design and environmental factors (water matrix, particle size, initial dissolved reactive phosphorus (DRP) concentration). Woodchips with the highest aluminum and iron content provided the most dissolved P removal (13±2.5 mg DRP removed/kg woodchip). However, poplar woodchips, which had low metals content, pr

SUBMITTER: Sanchez Bustamante-Bailon AP 

PROVIDER: S-EPMC8763764 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature