Technologies for water and wastewater treatment

Improvement in photocatalysts and photocatalytic reactors for water and wastewater treatment: A review

During recent years, many advanced oxidation techniques have been investigated for water and wastewater treatment to overcome the shortage of clean water. This review summarizes the background and principles of photocatalysis applied as an advanced oxidation technology. In particular, this paper focuses on modification of photocatalysts with various dopants as well as the novel photocatalytic r...

Evaluation of Sewage Sludge for Incineration (Case study: Arak Wastewater Treatment Plant)

Sewage sludge treatment has become a primary subject in wastewater treatment and energy production. This paper aims to study the feasibility of power generation by incineration from sewage sludge enriched with impurities like heavy metals. For this purpose, we chose Arak wastewater treatment plant (AWWTP) and used calorific bomb test for examination. The experimental results showed that the hea...

Energy Management System for a Wastewater Treatment Plant: Case of Activated Sludge Bioreactors

Amand L. and Carlsson B. (2012), "Optimal areation control in a nitrifying activated sludge process" J Wtaer Research. 46(7), 2101-2110. Chae K. and J. Kang (2013), "Estimating the Independence of Munciple Wastewater Treatment Plant Incorporating Green Energy Resource". Energy Conservation and Managment. No. 75, pp. 664-672. Goldstein R. and W. Smith (2002), "Water & Sustainability (volume 4)...

Chitosan/Polyethersulfone Composite Nanofiltration Membrane for Industrial Wastewater Treatment

Chitosan/polyethersulfone (CS/PES) composite membrane was prepared from casting chitosan solution on polyethersulfone substrate membrane. The Substrate membrane was prepared by phase inversion technique using polyethersulfone (PES) and dimethylacetamide (DMAc) as solvent with and without the addition of polyvinylpyrrolidone (PVP) as pore-forming agent. The effects of the composition of the c...

WATER AND WASTEWATER TREATMENT TECHNOLOGIES - Biological Phosphorus Removal Processes for Wastewater Treatment - A. Sathasivan ©Encyclopedia of Life Support Systems(EOLSS) BIOLOGICAL PHOSPHORUS REMOVAL PROCESSES FOR WASTEWATER TREATMENT

Advanced Water Recovery Technologies for Long Duration Space Exploration Missions

Extended-duration space travel and habitation require recovering water from wastewater generated in spacecrafts and extraterrestrial outposts since the largest consumable for human life support is water. Many wastewater treatment technologies used for terrestrial applications are adoptable to extraterrestrial situations but challenges remain as constraints of space flights and habitation impose...