NDLTD Global ETD Search
  • Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 13
  • 5
  • 2
  • 1
  • 1
  • Tagged with
  • 22
  • 22
  • 15
  • 10
  • 10
  • 9
  • 8
  • 8
  • 8
  • 6
  • 4
  • 4
  • 4
  • 4
  • 4
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Search results

Showing 21 to 22 of 22 (0.056 seconds)

Spelling suggestions: "subject:"water plant"" "subject:"later plant""

21

Effect of Algal Growth and Dissolved Oxygen on Redox Potentials in Soil Flooded with Secondary Sewage Effluent

Gilvert, R. G., Rice, R. C. 15 April 1978 (has links)
From the Proceedings of the 1978 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 14-15, 1978, Flagstaff, Arizona / Algal growth and oxygen evolution at the soil -water interface of soil recharge basins intermittently flooded with secondary sewage effluent (SSE) produced diurnal fluxes in dissolved oxygen (DO) in the SSE and redox potentials (Eh) in the SSE and the surface soil of the basin. The maximum daily DO-% saturation in the SSE during flooding ranged from 30 to 450 %, depending on the length of flooding and seasonal effects of temperature and solar radiation. Diurnal cycles of Eh in the SSE and the top 0 to 2 cm of soil indicated that oxygen production by algae and bacterial nitrifying and denitrifying reactions at the soil-water interface are occurring daily for limited periods during flooding and that these reactions might contribute to the net-N removal and renovation of SSE by soil filtration.
Hydrology -- Arizona.
Water resources development -- Arizona.
Hydrology -- Southwestern states.
Algae
Algal control
Waste water treatment
Effluents
Microbial degradation
Nitrogen cycle
Dissolved oxygen
Nitrification
Chemical reactions
Soil-water-plant relationships
Environmental effects
Sewage treatment
Growth stages
Denitrification
22

Nerealizovaná Praha. Historický vývoj neuskutečněné regulace a urbanizace Prahy a souvisejících stavebních projektů v 1.pol. 20.století / Unrealized Prague. Historical development of unrealised regulation and urbanizaion of Prague and related projects in the 1st half of 20th century

Drnek, Kryštof January 2018 (has links)
The aim of the dissertation is an overview of the historical development and work carried out on the never realized regulation and the construction of the city of Prague. This development is described thematically on the basis of the different areas of the proposed regulatory plan. At the same time, several long-term construction projects are selected, in which the process of designing the project, its assessment and subsequent implementation into the regulatory plan is shown in detail in the form of a historical probe. The work is planted between the two world wars, ie. between 1919 and 1939, with a thematic overlap over both set dates. Keywords: Regulation, Urbanisation, Prague, State commission for regulation of Prague and suburbs, New Town, Main railway station, Masaryk Railway station, Nusle bridge, Petřín communication, Letná plains, Invalidovna, Water treatment plant, Water plant for undrinkable water.

Page generated in 0.0618 seconds