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AWWA JAW66308
- Journal AWWA - Effects of Water Treatment Residual Addition on Phosphorus in Liquid Dairy Manure
- Journal Article by American Water Works Association, 04/01/2008
- Publisher: AWWA
$15.00$30.00
Excessive phosphorus (P) in runoff from manureapplied to farmland is a threat to water quality across theUnited States. This study investigated the addition ofdrinking water treatment residuals (WTRs) to manure tobind P and decrease the risk of P runoff from land-appliedmanure. Results indicated that even small doses of WTRsbind some of the P in manure and reduce the amount of Pavailable to be carried into streams and lakes.Treatment of manure to reduce its pollution potentialis an emerging area of agricultural nonpointsource pollution control. Most previous work in thisarea has focused on poultry agriculture; this worksuggests that WTRs can be effective on dairy manureas well, without elevating trace metal concentrationsin the manure.Beneficial use of WTRs can reduce utility costs forbyproduct disposal. Furthermore, use of residuals tocontrol nutrient pollution can help improve and protectwater quality, providing significant benefit for both theutility and the public. Includes 32 references, tables, figures.
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