Results 31 to 40 of about 5,183,811 (278)

Recovery of Ammonium Sulfate Solution by Regeneration of Loaded Clinoptilolite

Nanomaterials, 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, Eduard Rott, Ralf Minke, Heidrun Steinmetz   +3 more
doaj   +1 more source

The effects of modification for contact stabilization activated sludge on EBPR

HBRC 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, Mahmoud M. Abd El-Azim, Mohamed S. Abd El-Rahman, Alaa O. Lotfy, Mostafa M. Mostafa   +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

Sustainable 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, Peter Maurer, Harald Schönberger   +2 more
doaj   +1 more source

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

Alexandria 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, Medhat A.E. Moustafa, Hamdy A.E. Seif, Galal El Kobrosy   +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

Alexandria 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, W.A. Ibrahim, Mai Fayed, M.G. Eloffy   +3 more
doaj   +1 more source

Legal aspects of sanitary engineering facilities [PDF]

, 1983
A study of 160 legal cases involving sanitary engineering facilities was made. Each case was read, summarized, and commented upon by the writer.
Beard, Betty Beall
core  

Does Participating in Agricultural Global Value Chains Promote Agricultural Growth?

Agribusiness, EarlyView.
ABSTRACT This study examines the relationship between GVC participation and agricultural value‐added growth in 43 countries over the period 1995–2022. In contrast to prior literature, we disaggregate the agricultural sector into four sub‐sectors namely crop cultivation, animal production, forestry and fishing.
Taner Turan, Halit Yanıkkaya, Hüseyin Alperen Özer   +2 more
wiley   +1 more source

Removal of Volatile Solids from Greywater Using Sand Filters

Applied Sciences, 2019
Sand filtration is a primary stage of treatment for reuse of greywater. This study aimed at assessing the volatile solid removal efficiency of a sand filter and imitating its performance using analytical simulation.
Marcin Spychała, Jakub Nieć, Paweł Zawadzki, Radosław Matz, Thanh Hung Nguyen   +4 more
doaj   +1 more source

Price Transmission and Leadership in the Global Poultry Market: Results From Parametric and Nonparametric Approaches

Agribusiness, EarlyView.
ABSTRACT Brazil and the United States account for more than 40% of global poultry exports, with China and South Korea among their major destination markets. This study examines price transmission and market linkages between Brazil and the United States using monthly poultry export price data from January 1990 to December 2024. It also assesses which of
Khondoker Abdul Mottaleb, Shaikh M. Rahman, Syed Imran Ali Meerza   +2 more
wiley   +1 more source

Performance enhancement and hydraulic optimization of water treatment processes: A case study of Kafr El-Sheikh Water Purification Plant, Egypt

Alexandria Engineering Journal
Access to clean drinking water remains a significant challenge in developing countries due to increasing demand. This study evaluates the efficiency of the Kafr El-Sheikh Water Purification Plant (KWPP).
Shimaa.M. Meleha, Mohamed Tarek Sorour, Medhat Moustafa, Samia A. Aly   +3 more
doaj   +1 more source