Download Development of a novel biofilter cover to offset methane emission from dairy effluent ponds

Dairy farms in New Zealand use lagoons and ponds to store effluent washdown from milking sheds. These ponds are therefore a significant source of methane. This study aims to test the effectiveness of an improved design of biofilter as an integral part of a pond cover to oxidise CH4 emissions from dairy effluent ponds, thus providing a practical and potentially cost-effective technology to reduce dairy effluent emissions.