ค้นเจอ 190 รายการ

Secondary standards

แปลว่า(Environmental Engineering) Recommended drinking water quality standards which relate to aesthetics and/or health. These standards are recommended, not required. See primary standards.

Softening

แปลว่า(Environmental Engineering) The removal of divalent cations by precipitation or ion exchange.

Receiving water quality standards

แปลว่า(Environmental Engineering) Standards which require a discharger to maintain a certain quality level in the receiving 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.

Ultimate disposal

แปลว่า(Environmental Engineering) The process of returning residuals back to the environment in a form which will have the minimal or reduced negative environmental impacts.

Protection of Environment

แปลว่าการป้องกันสิ่งแวดล้อม

Adsorption

แปลว่า(Environmental Engineering) A surface phenomena in which a solute (soluble material) concentrates or collects at a surface (the adsorbent).

Carbonaceous biochemical oxygen demand (CBOD)

แปลว่า(Environmental Engineering) The amount of oxygen required to oxidize any carbon containing matter present in a water.

Stratosphere

แปลว่า(Environmental Engineering) The atmosphere from approximately 12 km to 70 km. The temperature of the atmosphere increases in this region.Strong acid

Publicly owned treatment works (POTW)

แปลว่า(Environmental Engineering) A municipal or domestic wastewater treatment facility.

Surface water

แปลว่า(Environmental Engineering) Water which is contained in lakes, rivers, and oceans.

Alcohol

แปลว่า(Environmental Engineering) An organic compound with one or more hydroxyl "-OH" groups.