Aeration. A technique by which air is introduced into a liquid; bubbles and aero are generated and dissolved gases released. For example, water aerated by passing through a showerhead will release dissolved radon gas. ACTIVATED CARBON: A material made from burnt wood, which is used to remove organic solutes, such as pesticides, and some inorganic solutes, such as chlorine, from water. Dissolved organic solutes are removed from the water by absorption onto activated carbon. The activated carbon must be periodically replaced when it becomes saturated and unable to adsorb any more solute. Activated carbon is not effective in removing heavy metals, such as lead.
Aeration a. All turf areas shall be aerated once per year between October 1st and October 31st immediately prior to the scheduled fertilization in October.
Aeration. Contractor shall aerate once per year or as determined by work order, typically in Spring.
Aeration. CDI shall aerate all irrigated turf areas to open the turf for fertilizer, air, and water two (2) times each year. The first aeration shall be completed before the first fertilization and shall be done within one (1) week of the irrigation system being turned on in the spring. The second aeration shall occur at a minimum, two (2) weeks prior to the irrigation system being shut down for the year. Irrigated turf areas will be watered thoroughly prior to aeration and fertilized immediately thereafter with an appropriate fertilizer, as specified in the Fertilization section. CDI shall use only a closed coring tine. Prior to aeration, CDI shall flag all sprinkler heads and valve boxes to minimize damage. At its own expense, CDI shall replace any sprinkler heads and valve box covers damaged by the aerators. Plugs shall be left on irrigated turf areas to assist in breaking down thatch.
Aeration. Aeration must be performed annually in 1 of the following months: April, May, September or October. Plugs from the aeration should remain on the lawn to break down into the soil OVERSEEDING Over seeding must be performed annually in 1 of the following months; April, May, September or October according to the detailed over seeding instructions below: Spread topsoil over lawn area to a depth of 1 inch and rake into the lawn. Broadcast a seed mixture high in fescue and low in Kentucky Blue grass seed content (20 % or less) using standard seed spreading equipment. Water lightly (less than 10 minutes per area) for 10 days until seeds germinate. If aerating in the same season as over seeding, aerate first and over seed 2 to 3 weeks later.
Aeration. Mechanically aerate all turf areas as often as required or at least two
Aeration. All sod areas will be aerated in the spring and fall. Prior to aeration, the Consultant shall flag all sprinkler heads and valve boxes to prevent damage. Plugs shall be left on turf to assist in breaking down thatch. Additionally, Consultant shall aerate selective areas near the end of the growing season. Selective areas shall include south facing slopes, heavy use areas and areas of unusually tight soil.
Aeration. To be undertaken with Ventidrain, Xxxxxx Aerator or similar. When soil is neither too wet or too dry. Pitch Marking Initial marking out with Finale herbicide and lining material then fortnightly lining only. Over seeding Prior to seeding, restore goal and central areas with a xxxxx loam and seed over.
Aeration. Aeration is necessary for thermo-phallic aerobic composting in order to obtain the rapid decomposition, fast decomposition that is characteristic of the process and also is useful in reducing high initial moisture content in composting materials. Several different aeration techniques have been utilized with varying degrees of success. Turning the material is the most common method of aeration when composting is done in stacks. Hand turning of the compost in piles or pits is most commonly used for small villages and farms. Mechanical turning is most economical in large municipal installations. The most important consideration in turning compost apart from aeration is to ensure that the material on the outside of the pile is turned into the Detailed Project Report on Solid Waste Management for Varanasi City Detailed Project Report on Solid Waste Management for Varanasi City centre, when it will be subjected to high temperature. In hand turning with forks, this can be readily accomplished e.g. piles or windrows on top of the ground are simply reconstructed with the materials from the outer layers placed on the inside of the new piles. In case of composting in pits, or trenches, the material can be moved from one pit to another for aeration or if a little space is left at the end of the pit at the initial filling, the material can be turned within the pit. The loss of volume of the material during the stabilization period will facilitate turning within the pit. Mechanical equipment for turning windrows in large composting operation has been developed extensively as a result of the increased interest in composting as a method of refuse disposal. The important criterion for the high degree of aeration is for the avoidance of anaerobic conditions, maintenance of high temperature and the control of flies.
