1-2 1 each

Tractor, crawler, or rubber-tired

Scraper or dragline, water track

30,000 or more

Dozer blade, landfill blade, front-end loader (2-5 yd), multipuipose bucket

100,000 or more

300 or more

2 or more 1 each

Tractor, crawler, or rubber-tired

Scraper, dragline, steel-wheeled compactor, road grader, water track

45,000 or more

Dozer blade, landfill blade, front-end loader, multipuipose bucket

Source: Adapted from D. R. Brunner, and D. J. Keller, Sanitary Landfill Design and Operation, EPA (SW-65ts), Washington, DC, 1972.

Source: Adapted from D. R. Brunner, and D. J. Keller, Sanitary Landfill Design and Operation, EPA (SW-65ts), Washington, DC, 1972.

FIGURE 3.40 Common types of compaction equipment used at sanitary landfills: (a) track compactor with with trash blade and (b) wheeled compactor with trash blade.

equipment could be 10 years. After 10 years, operation and maintenance costs can be expected to approach or exceed the annual cost of new equipment. Lesser life is also reported. Equipment maintenance and operator competence will largely determine equipment life.

The size and type of machine needed at the sanitary landfill are dependent on the amount of solid waste to be handled, availability of cover material, compaction to be achieved, and other factors.18 A rule that has been used is that a community with a population of less than 10,000 requires a 1 1/8-yd3 bucket on a suitable tractor. Communities with a population between 10,000 and 30,000 should have a 2 1/4-yd3 bucket, and populations of 30,000 to 50,000 should have at least a 3-yd3 bucket. Larger populations will require a combination of earth-moving and compaction equipment depending on the site and method of operation. A heavy tractor (D-8) can handle up to 200 tons of solid waste per day, although 100 to 200 tons per day per piece of equipment is a better average operating capacity. Tire fill foam and special tire chains minimize tire puncture and other damage on rubber-tired equipment.

Many small rural towns have earth-moving equipment that they use for highway maintenance and construction. For example, a rubber-tired loader with special tires can be used on a landfill that is open two days a week. On the other three days the landfill can be closed (with fencing and locked gate), and the earth-moving equipment can be used on regular road construction work and maintenance. The people and contract users of the site should be informed of the part-time nature of the operation to receive their full cooperation. The public officials responsible for the operation should establish a definite schedule for the assignment of the equipment to the landfill site to ensure the operation is always under control and maintained as a sanitary landfill.

Other Equipment The dragline is suitable for digging trenches, stockpiling cover material, and placing cover material over compacted solid waste. An additional piece of equipment is necessary to spread and compact the solid waste and cover material. Although not commonly used, the backhoe is suitable for digging trenches on fairly level ground, and the power shovel is suitable for loading trucks with cover material.

In large operations, earth movers can be used for the short haul of cover material to the site when adequate cover is not readily available nearby. Dump trucks may also be needed where cover material must be hauled in from some distance. Other useful equipment is a grader, a sheepsfoot roller, and a water tank truck equipped with a sprinkler to keep down dust or a power sprayer to wet down the solid waste to obtain better compaction.

Equipment Shelter An equipment shelter at the site will protect equipment from the weather and possible vandalism. The shelter can also be used to store fire protection equipment and other needed materials and for routine equipment maintenance and repair. Operators of sanitary landfills have found a shelter to be of great value during the winter months since there is much less difficulty in starting motorized equipment. However, the shelter location must be on solid ground, not subject to gas migration from the landfill.

Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

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