ตัวกรองผลการค้นหา
Nitrogen fixation
แปลว่า(Environmental Engineering) The conversion of atmospheric (or dissolved) nitrogen gas into nitrate by microorganisms.
Ecology
แปลว่า(Environmental Engineering) The study of living organisms and their environment or habitat.
Volatile solids
แปลว่า(Environmental Engineering) (VS) is the amount of matter which volatilizes (or burns) when a water sample is heated to 550EC.Volatile suspended solids
Toxicity
แปลว่า(Environmental Engineering) A U.S. EPA hazardous waste characteristic defined with a rigorous test procedure, the TCLP (for Toxicity Characteristic Leaching Procedure). In the procedure, a waste is extracted for 24 hours with an acetic acid solution. The acid extract is then analyzed for the presence of any of the contaminants listed in the procedure.
Adsorption
แปลว่า(Environmental Engineering) A surface phenomena in which a solute (soluble material) concentrates or collects at a surface (the adsorbent).
Alcohol
แปลว่า(Environmental Engineering) An organic compound with one or more hydroxyl "-OH" groups.
Site remediation
แปลว่า(Environmental Engineering) The process of cleaning up a hazardous waste disposal site that has either been abandoned or that those responsible either refuse to cleanup or are financially unable to cleanup.
Anaerobes
แปลว่า(Environmental Engineering) A group of organisms that do not require molecular oxygen. These organisms, as well as all known life forms, require oxygen. These organisms obtain their oxygen from inorganic ions such as nitrate or sulfate or from protein.
Disease
แปลว่า(Environmental Engineering) Any impairment of the normal function of an organism.
Wastewater
แปลว่า(Environmental Engineering) Consumed or used water from a municipality or industry that contains dissolved and/or suspended matter.
Metalimnion
แปลว่า(Environmental Engineering) The middle layer of a lake.
Trace contaminants
แปลว่า(Environmental Engineering) Contamination found in trace (very low) levels.