Ọnọdụ okpomọkụ na-adị mgbe niile BOD jụrụ oyi
Tinye akwụkwọ na ngalaba mmepụta nke nlekọta gburugburu ebe obibi, ahụike na mgbochi ọrịa ọgwụ, anụ ụlọ, aquaculture na ụlọ ọrụ nyocha ndị ọzọ.Ọ bụ ngwaọrụ thermostatic raara onwe ya nye nke mmiri na mkpebi BOD, nje bacteria, fungi, microorganisms cultivation, conservation, cultivation cultivation, ozuzu.