[Recycling of municipal sewage for the purposes of the sanitary protection of reservoirs].
D012498:Sanitary Engineering; D012722:Sewage / Q000032:analysis; D014481:United States; D014876:Water Pollution / Q000517:prevention & control; D014881:Water Supply
D012722:Sewage
Povtornoe ispol'zovanie gorodskikh stochnykh vod v tseliakh sanitarnoĭ okhrany vodoemov