Results 31 to 40 of about 2,458,623 (306)

Forecasting wind speed data by using a combination of ARIMA model with single exponential smoothing [PDF]

open access: yes, 2021
Wind serves as natural resources as the solution to minimize global warming and has been commonly used to produce electricity. Because of their uncontrollable wind characteristics, wind speed forecasting is considered one of the best challenges in ...
A. Rahman, Nur H.   +5 more
core   +1 more source

Hydraulic characteristics of the airlift pump [PDF]

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2018
Airlift pumps are the simplest devices used for lifting and transporting of liquid in water and wastewater systems. They constitute the subject of interest in numerous studies, focusing on their two-phase flow.
Sebastian Kujawiak   +2 more
doaj   +1 more source

Adsorption of Phenol onto Aluminum Oxide Nanoparticles: Performance Evaluation, Mechanism Exploration, and Principal Component Analysis (PCA) of Thermodynamics

open access: yesAdsorption Science & Technology, 2022
The removal of phenolic compounds from aqueous solutions using novel adsorption techniques becomes a key research item. Of those, nanoparticles in particular, the low-cost and the high-strength aluminum oxide nanoparticles showed promising results in ...
Safwat M. Safwat   +3 more
doaj   +1 more source

Urban Evolution: The Role of Water [PDF]

open access: yes, 2015
The structure, function, and services of urban ecosystems evolve over time scales from seconds to centuries as Earth’s population grows, infrastructure ages, and sociopolitical values alter them.
Belt, Kenneth T.   +6 more
core   +3 more sources

The effects of modification for contact stabilization activated sludge on EBPR

open access: yesHBRC Journal, 2015
Excessive phosphorus can cause eutrophication in water bodies and needs to be reduced in most wastewaters before being discharged into receiving waters.
Hamdy I. Ali   +4 more
doaj   +1 more source

Recovery of Ammonium Sulfate Solution by Regeneration of Loaded Clinoptilolite

open access: yesNanomaterials, 2022
The zeolite clinoptilolite (CLI) is known to be a very good ion exchanger, as it consists of a three-dimensional structure formed of AlO4− and SiO4 tetrahedral, which are connected by a common oxygen atom.
Stephan Wasielewski   +3 more
doaj   +1 more source

Fecal contamination of drinking-water in low- and middle-income countries: a systematic review and meta-analysis [PDF]

open access: yes, 2014
Background: access to safe drinking-water is a fundamental requirement for good health and is also a human right. Global access to safe drinking-water is monitored by WHO and UNICEF using as an indicator “use of an improved source,” which does not ...
Bain, R.   +5 more
core   +4 more sources

Effect of coupling primary sedimentation tank (PST) and microscreen (MS) to remove particulate organic carbon (POC): a study to mitigate energy demand in municipal wastewater treatment plants

open access: yesSustainable Environment Research, 2023
Particulate Chemical Oxygen Demand (COD) removal is one of the first and foremost steps in a wastewater treatment plant (WWTP). It is a highly essential step that supports subsequent biological steps to achieve discharge limits.
Behnam Askari Lasaki   +2 more
doaj   +1 more source

Comparison between the performance of activated sludge and sequence batch reactor systems for dairy wastewater treatment under different operating conditions

open access: yesAlexandria Engineering Journal, 2021
The main purpose of this study was to investigate the effect of operating conditions on the performance of two methods used for dairy wastewater treatment. First, conventional activated sludge (AS). Second, conventional sequencing batch reactor (SBR). On
Alaa.H. Khalaf   +3 more
doaj   +1 more source

Tertiary-Treated Municipal Wastewater is a Significant Point Source of Antibiotic Resistance Genes Into Duluth-Superior Harbor [PDF]

open access: yes, 2011
In this study, the impact of tertiary-treated municipal wastewater on the quantity of several antibiotic resistance determinants in Duluth-Superior Harbor was investigated by collecting surface water and sediment samples from 13 locations in Duluth ...
Allen H. K.   +49 more
core   +3 more sources

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