คำศัพท์ภาษาอังกฤษ (Environmental Engineering) The amount of oxygen required to oxidize any organic matter present in a water during a specified period of time, usually 5 days. It is an indirect measure of the amount of organic matter present in a water.
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(Environmental Engineering) The amount of oxygen required to oxidize any organic matter present in a water during a specified period of time, usually 5 days. It is an indirect measure of the amount of organic matter present in a water.
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(Environmental Engineering) The amount of oxygen required to oxidize any carbon containing matter present in a water.
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(Environmental Engineering) The amount of oxygen required to oxidize any organic matter in the water using harsh chemical conditions.
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(Environmental Engineering) The amount of oxygen required to oxidize any ammonia present in a water.
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