29. Which of the following is not required for examination of solid waste?
(A) Oil and gas
(B) N, P and K
(C) pH
(D) Calorific value
Answers
Explanation:
calorific value is the answer
Answer:
(D) Calorific value is not required for examination of solid waste.
Explanation:
Solid waste like meal scraps, waste food, racked leaves, sewage, animal manure etc. are referred as unwanted waste material that is not in gas or liquid state. Molecular oxygen, liquid waste and water waste are not found in solid state.
Solid waste includes garbage, construction debris, commercial refuse, sludge from water supply or waste treatment plants, or air pollution control facilities, and other discarded materials.
Calorific value is defined as the amount of calories generated when a unit amount of substance is completely oxidized and is determined using the bomb calorimeter.
For the purposes of this review these sources are defined as giving rise to four major categories of waste: municipal solid waste, industrial waste, agricultural waste and hazardous waste. Each of these waste types is examined separately below.
Source reduction, recycling, and disposal are the three key components of an integrated waste management strategy.
Our trash, or municipal solid waste (MSW), is comprised of various items Americans commonly throw away after being used. These include items such as packaging, food waste, grass clippings, sofas, computers, tires, and refrigerators. MSW does not include industrial, hazardous, or construction waste.
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