Results 31 to 40 of about 8,343,117 (194)

Treatment of WASTEWATER from the Tannery Industry in a Constructed Wetland Planted with Phragmites australis

open access: yesAgronomy, 2020
Constructed wetlands (CWs) can remove a high amount of pollutants from wastewater, and therefore play an important role in water purification. In this study, a pilot system to improve the traditional treatment of industrial wastewater from the tannery ...
Amalia García-Valero   +6 more
doaj   +1 more source

Natural Ventilation to Manage Ammonia Concentration and Temperature in a Rabbit Barn in Central Mexico

open access: yesApplied Sciences
The concentration of ammonia (NH3) and the temperature of the air surrounding the rabbit habitat in the farm condition basic health processes such as breathing and feeding.
David Vargas Cano   +2 more
doaj   +1 more source

Water Use Trends in the United States [PDF]

open access: yes, 2015
Since 1950, the United States Geological Survey (USGS) has collected and released data on national water use every five years for each state, the District of Columbia, Puerto Rico, and the U.S. Virgin Islands.
Heather Cooley, Kristina Donnelly
core  

Practical use of variational principles for modeling water waves [PDF]

open access: yes, 2012
This paper describes a method for deriving approximate equations for irrotational water waves. The method is based on a 'relaxed' variational principle, i.e., on a Lagrangian involving as many variables as possible.
Abramowitz   +62 more
core   +5 more sources

Influence of acidified-biochar on phosphorus and potassium availability in alkaline sandy soil

open access: yesScientific Reports
Biochar application is recommended to enhance soil fertility, particularly in arid and semi-arid regions. In alkaline soils, acidifying biochar can help overcome high pH constraints and improve phosphorus (P) and potassium (K) availability.
Tamer A. Elbana   +4 more
doaj   +1 more source

Urban Water Conservation and Efficiency Potential in California [PDF]

open access: yes, 2014
Improving urban water-use efficiency is a key solution to California's short-term and longterm water challenges: from drought to unsustainable groundwater use to growing tensions over limited supplies.
Heather Cooley   +2 more
core  

Actual evapotranspiration of the orange orchard in northern Sinai, Egypt [PDF]

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2017
Studies on soil-water management in the Nile Delta and Northern Sinai (Egypt) were carried out in 2011–2013 by the Institut de Recherche pour le Développement.
Jerzy Jan Niziński   +7 more
doaj   +1 more source

Control of common scab without the use of water [PDF]

open access: yes, 2006
The most effective way to control common scab is by irrigating a potato crop at tuber initiation. With the introduction of legislation such as the Water Framework Directive this will become increasingly difficult.
Hilton, A J, Wale, S J, Walker, R L
core  

Modeling the process of hydromechanical amber extraction

open access: yesE3S Web of Conferences, 2018
The paper represents a process of hydromechanical amber extraction modeling to obtain input data and substantiate operation parameters of mining equipment to develop the improved hydromechanical technique of amber extraction.
Malanchuk Yevhenii   +3 more
doaj   +1 more source

In Situ Water Quality Monitoring Using an Optical Multiparameter Sensor Probe [PDF]

open access: gold, 2023
Tobias Goblirsch   +4 more
openalex   +1 more source

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