Results 21 to 30 of about 1,476,093 (293)

Nutrient removal and payback of mineral fertilizers by harvest of winter wheat varieties under technologies of different intensity levels

open access: yesRUDN Journal of Agronomy and Animal Industries, 2019
Nutrient removal and payback of mineral fertilizers by harvest of winter wheat varieties were studied under technologies of different intensity levels in 2012-2015.
Nazih Yasser Rebukh   +3 more
doaj   +1 more source

Copper-zeolite integrated stormwater biofilter for nutrient removal – the impact of intermittent wetting and drying conditions

open access: yesBlue-Green Systems, 2020
A large-scale column study was conducted to examine the sediment and nutrient removal performance of stormwater biofilters that contained layers of novel copper-zeolite filter media.
Yali Li, Ana Deletic, David T. McCarthy
doaj   +1 more source

Microalgae production using photo-bioreactor with intermittent aeration for municipal wastewater substrate and nutrient removal

open access: yesCommunications in Science and Technology, 2020
Microalgae has emerged as a promising approach for removing substrate and nutrient from wastewater with the concomitant biofuel production. The substrate and nutrient removal are influenced by several factors such as C/N ratio, F/M ratio, pH, and DO ...
Anshah Silmi Afifah   +2 more
doaj   +1 more source

Elevated Turbidity and the Nutrient Removal Capacity of Seagrass

open access: yesFrontiers in Marine Science, 2018
Seagrass meadows provide a range of important ecosystem functions that can be influenced by anthropogenic pressures. Sediment loading from coastal land use mismanagement can elevate turbidity and reduce seabed light levels, thereby impacting seagrass ...
Richard Hugh Bulmer   +3 more
doaj   +1 more source

Nutrient Reduction and Productivity Studies in Low Strength Freshwater Aquaculture Wastewater Using Lemna Gibba (Duckweed) System

open access: yesEnvironment Conservation Journal, 2002
The use  of macrophytes plants  for treatment of wastewater for nutrient removable is addressed A stuoy was conducted to ascertain  the  nutrient   reduction   potential   in  freshwater  aquaculture using  Lemna  gibba (Duckweed)   Experiments were ...
M. Karthik, R. Nagendran
doaj   +1 more source

Limited progress in nutrient pollution in the U.S. caused by spatially persistent nutrient sources.

open access: yesPLoS ONE, 2021
Human agriculture, wastewater, and use of fossil fuels have saturated ecosystems with nitrogen and phosphorus, threatening biodiversity and human water security at a global scale.
Rebecca J Frei   +10 more
doaj   +1 more source

The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process [PDF]

open access: yes, 1993
Includes bibliography.Phosphate is an essential nutrient for photosynthetic plant growth. However if over-supplied in a water body, it leads to excessive algal growth, a condition is termed eutrophication.
Kaschula, Wendy A
core   +1 more source

Chemical and biological phosphorus removal in the activated sludge process [PDF]

open access: yes, 1980
Bibliography: leaves 86-88.This investigation set out to establish in what degree the phosphorus removal characteristics of the Modified Activated Sludge Process could be enhanced by the in-plant addition of iron salts.
Rabinowitz, Barry
core   +1 more source

Enhanced Nutrient Removal from Freshwater Through Microbial Fuel Cells: The Influence of External Resistances

open access: yesPollutants
Eutrophication is a major threat to freshwater ecosystems, leading to harmful algal blooms, biodiversity loss, and hypoxia. Excessive nutrient loading, primarily from nitrates and phosphates, is driven by fertilizer runoff, sewage discharge, and ...
Aaron Bain   +4 more
doaj   +1 more source

Impact of urine diversion on Biological Nutrients Removal Activated Sludge Wastewater Treatment Plant (BNRAS WWTP) [PDF]

open access: yes, 2011
This experimental investigation was started to study the impacts urine separated WW [Wastewater] can have on BNRAS WWTPs [Biological Nutrient Removal Activated Sludge Wastewater Treatment Plants] with a UCT and a JHB ...
Mbaya, Andre MK
core   +1 more source

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