Results 31 to 40 of about 209,776 (322)

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

Water infrastructure and social housing in Bogotá: an intersection between modern water management and social housing production [PDF]

open access: yes, 2016
En la actualidad Bogotá afronta la presión de construir viviendas sociales en ecosistemas frágiles, áreas rurales o zonas propensas a las inundaciones, y al mismo tiempo proteger estas áreas para asegurar la capacidad de resiliencia del medio ambiente.
Rojas Bernal, Claudia Lucia
core   +1 more source

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

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

Sanitation and sanitary engineering [PDF]

open access: yesJournal of the Franklin Institute, 1909
n ...
openaire   +1 more source

Modelling and simulation of German BIOGEST/EL-AGAMY wastewater treatment plants – Egypt using GPS-X simulator

open access: yesAlexandria Engineering Journal, 2011
This paper focuses on modelling and simulation of German BIOGEST/EL-AGAMY Sequencing Batch Reactor (SBR) using a package software GPS-X simulator to investigate the plant performance among six scenarios of various durations of fill, react and settle ...
Mahmoud S. Nasr   +3 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

Non‐Tariff Measures and U.S. Agricultural Exports

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract How much do non‐tariff measures (NTMs) affect U.S. agricultural exports? While countries maintain a large and diverse set of NTMs to safeguard the health of plants, animals, and humans, policymakers and regulatory bodies may neglect the impact these measures have on international trade.
Yunus Emre Karagulle   +2 more
wiley   +1 more source

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