Sewage--Purification
DEWATS
Decentralized wastewater treatament in developing countries
Ludwig Sasse
Sewage--Purification Sewage--Disposal Water--Waste water treatment
Elements of environmental engineering
K. N. Duggal
Engineering--Environmental Sewage--Purification Buildings--Environmental engineering Engineering--Sanitary
Waste water treatment
rational methods of design and industrial practices.
M. Narayana Rao and Ama K. Datta
Sewage--Purification Water--Waste water treatment
Wastewater engineering
treatment and reuse
rev. by George Tchobanoglous; Franklin L. Burton; H. David Stensel
Sewage--Purification Water--Waste water treatment