backwash liquid

См. также в других словарях:

• backwash — ack wash , v. t. 1. To clean the oil from (wool) after combing. Ash. [1913 Webster] 2. (Chem.) To clean (a filter, a chromatography column, a water softener, etc.) by passing liquid through in the reverse of the normal direction of flow. This… …   The Collaborative International Dictionary of English

• backwash — /ˈbækwɒʃ / (say bakwosh) noun 1. Nautical the water thrown back by a motor, oars or paddlewheels. 2. Aeronautics the air which flows back from the propellers of an aircraft. 3. a condition lasting after the event which caused it. 4. water running …  

• environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

• wash — I. verb Etymology: Middle English, from Old English wascan; akin to Old High German waskan to wash and perhaps to Old English wæter water Date: before 12th century transitive verb 1. a. to cleanse by or as if by the action of liquid (as water) b …   New Collegiate Dictionary

• ion-exchange reaction — ▪ chemical reaction Introduction       any of a class of chemical reactions between two substances (each consisting of positively and negatively charged species called ions (ion)) that involves an exchange of one or more ionic components.… …   Universalium

• Membrane bioreactor — (MBR) is the combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment with plant sizes up to 80,000 population… …   Wikipedia

• Nasal irrigation — Intervention A woman flushing her nose with a neti pot. ICD 9 CM …   Wikipedia

• sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium

• Drip irrigation — A dripper Drip irrigation, also known as trickle irrigation or microirrigation or localized irrigation , is an irrigation method which saves water and fertilizer by allowing water to drip slowly to the roots of plants, either onto the soil… …   Wikipedia

• Stephen Colbert at the 2006 White House Correspondents' Association Dinner — Stephen Colbert telling jokes at the White House Correspondents Association Dinner On April 29, 2006, American comedian Stephen Colbert appeared as the featured entertainer at the 2006 White House Correspondents Association Dinner, which was held …   Wikipedia

• Reverse osmosis — Schematics of a reverse osmosis system (desalination) using a pressure exchanger. 1: Sea water inflow, 2: Fresh water …   Wikipedia