1. Biofilm reactors /prepared by the Biofilm Reactors Task Force of the Water Environment Federation.

Library: Library of Graduate Faculty of Environment of Tehran Univerdity (Tehran)

Subject: Sewage--Purification--Fixed-film biological process.

Classification :
TD
755
.
W38
2011
cd

2. Biofilm reactors /prepared by the Biofilm Reactors Task Force of the Water Environment Federation.

Library: Tehran University, technical faculty libraries 1 (Tehran)

Subject: Sewage--Purification--Fixed-film biological process.

Classification :
TD
755
.
W38
2011
cd5