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48-Inch Tow Plug Aerator. The Agri-Fab 48-inch tow plug aerator is a robust and efficient tool for aerating large lawns. Its 48-inch width allows for wide coverage in a single pass, making it ...
Intensive culture requires more capital outlay and greater management time. Often they use purpose-built facilities (e.g. tanks), artificial food and aeration and constant monitoring of water quality. It has much higher productivity rates, but associated high levels of feeding, labour, water pumping and capital costs.
The ponds or basins may range in depth from 1.5 to 5.0 meters. [ 6 ] In a surface-aerated system, the aerators provide two functions: they transfer air into the basins required by the biological oxidation reactions, and they provide the mixing required for dispersing the air and for contacting the reactants (that is, oxygen, wastewater and ...
The American Tree Farm system is an organized collection of private landowners interested in effectively managing their woodland properties. Founded in 1941, the ATFS consists of more than 27,500,000 acres (111,000 km 2 ) of privately owned forest in 46 states.
California approved purchase of the property on February 11, 2003. The land is currently managed and owned by the US Fish and Wildlife Services and the Department of Fish and Game. [14] The goal of the South Bay Salt Pond Restoration Project is to restore 90% of the former salt ponds to natural wetlands.
Facultative lagoon (polishing pond) providing tertiary treatment after a constructed wetland in Hamburg-Allermöhe, Germany. Overflow from the facultative lagoon may be routed through one or more polishing ponds supporting lower populations of anaerobic micro-organisms and a higher proportion of aerobic organisms adapted to survival in lower concentrations of organic material.
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