Matias Vanotti

IntroductionConfined swine (Sus scrofa L.) production gener­ates large volumes of wastewater typically stored and treated in anaerobic lagoons. These lagoons usually re­quire a sludge maintenance plan consisting of regular sludge removal followed by land application (Barker, 1996). Anaerobic lagoon liquid and sludge are both rich in nutrients, particularly nitrogen (N), phosphorus (P), cop ...

Control methods are needed to abate NH3 losses from swine anaerobic lagoons to reduce the contribution of confined swine operations to air pollution. In a 15-mo meso-scale column study, we evaluated the effect of manure pretreatment on water quality, reduction of N losses, and sludge accumulation in swine lagoons using (i) enhanced solid–liquid separation with polymer (SS) and (ii) solid&nda ...

Large volumes of wastewater from confined pig production are stored in anaerobic lagoons. Control methods are needed to reduce air pollution by foul odors released from these lagoons. In a pilot-scale experiment, we evaluated the effect of pig wastewater pre-treatment on reducing the concentration of selected malodor compounds in lagoons receiving liquid from: (1) flocculant enhanced solid–l ...

INTRODUCTIONCurrently the potential impact of manure on the environment represents one of the world agriculture's major challenges. Once dominated by many small operations as part of traditional crop-livestock farms, livestock production has become highly concentrated in large operations. This development has separated animal production from crop production. Thus, the amount of manure produced oft ...