ค้นเจอ 190 รายการ

Environmental Management

แปลว่าการจัดการสิ่งแวดล้อม

Hypolimnion

แปลว่า(Environmental Engineering) The lower layer of a lake.

Ethers

แปลว่า(Environmental Engineering) An organic compound which has two hydrocarbon groups bound by an interior oxygen atom. The general formula is R'-O-R".

Suspended growth reactor

แปลว่า(Environmental Engineering) A reactor in which the microorganisms are suspended in the wastewater. Examples of suspended growth reactors are activated sludge reactors and anaerobic digesters. See attached growth reactor.

Amine

แปลว่า(Environmental Engineering) A functional group consisting of "-NH2."

Organic compound

แปลว่า(Environmental Engineering) Any compound containing carbon except for the carbonates (carbon dioxide, the carbonates and bicarbonates), the cyanides, and cyanates.

Nitrification

แปลว่า(Environmental Engineering) The biological oxidation of ammonia and ammonium sequentially to nitrite and then nitrate. It occurs naturally in surface waters, and can be engineered in wastewater treatment systems. The purpose of nitrification in wastewater treatment systems is a reduction in the oxygen demand resulting from the ammonia.

Denitrification

แปลว่า(Environmental Engineering) The anoxic biological conversion of nitrate to nitrogen gas. It occurs naturally in surface waters low in oxygen, and it can be engineered in wastewater treatment systems.

Elementary reaction

แปลว่า(Environmental Engineering) A reaction in which the rate expression corresponds to the stoichiometric equation.

environs

แปลว่าบริเวณรอบๆ

Chemical oxygen demand (COD)

แปลว่า(Environmental Engineering) The amount of oxygen required to oxidize any organic matter in the water using harsh chemical conditions.

Nonpoint source pollution (NPSP)

แปลว่า(Environmental Engineering) Any pollution from a source which cannot be attributed to a particular discharge point, e.g. from agricultural crops, city streets, construction sites, etc.