Excessive phosphorus (P) in runoff from manure
applied to farmland is a threat to water quality across the
United States. This study investigated the addition of
drinking water treatment residuals (WTRs) to manure to
bind P and decrease the risk of P runoff from land-applied
manure. Results indicated that even small doses of WTRs
bind some of the P in manure and reduce the amount of P
available to be carried into streams and lakes.
Treatment of manure to reduce its pollution potential
is an emerging area of agricultural nonpoint
source pollution control. Most previous work in this
area has focused on poultry agriculture; this work
suggests that WTRs can be effective on dairy manure
as well, without elevating trace metal concentrations
in the manure.
Beneficial use of WTRs can reduce utility costs for
byproduct disposal. Furthermore, use of residuals to
control nutrient pollution can help improve and protect
water quality, providing significant benefit for both the
utility and the public. Includes 32 references, tables, figures.
| Edition : | Vol. 100 - No. 4 |
| File Size : | 1
file
, 670 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 11 |
| Published : | 04/01/2008 |
