Sanitary landfills, municipal refuse, anaerobic lagoons and night-soil provide valuable source for biogas recovery. Landfills are essentially dumping ground for municipal wastes. Anaerobic conditions generally exist in top 10 feet of a landfill resulting in production of gases and leachates. Landfill gas is directly usable as a principal fuel or a supplementary fuel after removing […]
How to Recover Biogas? (4 Sources) | Bioenergy
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How to Estimate Evapotranspiration? | Geography
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There are many methods of estimating evapotranspiration. Some of these are briefly described in the following: 1. Soil Moisture Sampling: A large number of samples are taken from various depths in the roots zone and the soil moisture depletion studies are made. 2. Tanks and Lysimeter Experiments: Keeping an account of water added and soil […]
How to Calculate the Specific Yield of an Aquifer? | Groundwater
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While porosity is a measure of the water-bearing capacity of the formation, all this water cannot be drained by gravity or by pumping from wells, as a portion of the water is held in the void spaces by molecular and surface tension forces. The volume of water, expressed as a percentage of the total volume […]