ผลการค้นหา

Advanced wastewater treatment

แปลว่า(Environmental Engineering) The removal of any dissolved or suspended contaminants beyond secondary treatment, often this is the removal of the nutrients nitrogen and/or phosphorus.

Maximum contaminant level (MCL)

แปลว่า(Environmental Engineering) The maximum allowable concentration of a given constituent in potable water.

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.

Trace contaminants

แปลว่า(Environmental Engineering) Contamination found in trace (very low) levels.