Login or register (free and only takes a few minutes) to participate in this question.
You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.
22:05 Nov 11, 2003
This question was closed without grading. Reason: No acceptable answer
English to English translations [PRO] Science / Chemistry (biodegradation test)
English term or phrase:fill-and-draw activated sludge vessel
Use an appropriate volume of the filtered supernatant to fill a fill-and-draw activated sludge vessel and aerate the liquid for about 23 1/2 h.