Results 11 to 20 of about 8,593 (228)

Free surface aeration and development dependence in chute flows

open access: yesScientific Reports, 2022
The microscopic description of the mixture behaviour of air–water flow remains a challenge. It is not clear how to represent a complex two-phase interaction with the turbulent air–water structure development process. In this study, based on the air–water
Wangru Wei, Jun Deng
doaj   +1 more source

Air Concentration Distribution In Self-Aerated Flow [PDF]

open access: yesJournal of Hydraulic Research, 1995
The authors presented interesting new data. For completeness on the subject, the writer must state that the authors omitted two important studies. These are the works of WOOD (1984) and CAIN (1978).
  +7 more sources

Studying the Effect of Ambient Temperature on Wastewater Degradation in Simulated Self-Purification Aerated Sewer System [PDF]

open access: yesEngineering and Technology Journal, 2018
Designing and operating a simulated gravity sewer system had been accomplished in the current research. The design had been provided with aeration system in order to deliver oxygen to microorganisms presented in sewage water.
Tala Al-Khateeb   +2 more
doaj   +1 more source

Can a Wastewater Treatment Plant Power Itself? Results from a Novel Biokinetic-Thermodynamic Analysis

open access: yesJ, 2021
The water–energy nexus (WEN) has become increasingly important due to differences in supply and demand of both commodities. At the center of the WEN is wastewater treatment plants (WWTP), which can consume a significant portion of total electricity usage
Mustafa Erguvan, David W. MacPhee
doaj   +1 more source

The development of a high-efficiency aquaculture water pump using self-adhesive electrical steel

open access: yesMaterials Research Express, 2023
Traditional water pump use AC motor combines with gearbox to achieve high torque and low speed to protect fish form injury by blades, which will shorten the life of waterwheel.
Guan-Ming Chen   +3 more
doaj   +1 more source

Self-Healing Concrete: Concepts, Energy Saving and Sustainability

open access: yesEnergies, 2023
The production of cement accounts for 5 to 7% of carbon dioxide emissions in the world, and its broad-scale use contributes to climate imbalance. As a solution, biotechnology enables the cultivation of bacteria and fungi for the synthesis of calcium ...
Bruno Augusto Cabral Roque   +6 more
doaj   +1 more source

Evaluation of dissolved oxygen sinks in water-stirring setups used in reaeration experiments

open access: yesWater Science and Technology, 2022
Dissolved oxygen (DO) is an essential parameter of water quality, and the surface reaeration process (K2) is the main source of DO in aquatic ecosystems. On a laboratory scale, reaeration measurements are performed using water-stirring setups (WSSs), but
M. de S. Ferreira   +4 more
doaj   +1 more source

Towards an Energy Self-Sufficient Resource Recovery Facility by Improving Energy and Economic Balance of a Municipal WWTP with Chemically Enhanced Primary Treatment

open access: yesEnergies, 2021
The recent trend of turning wastewater treatment plants (WWTPs) into energy self-sufficient resource recovery facilities has led to a constant search for solutions that fit into that concept.
Magdalena Budych-Gorzna   +6 more
doaj   +1 more source

Methane Oxidation via Chemical and Biological Methods: Challenges and Solutions

open access: yesMethane, 2023
Methane, a potent greenhouse gas, has gained significant attention due to its environmental impact and economic potential. Chemical industries have focused on specialized catalytic systems, like zeolites, to convert methane into methanol.
Dipayan Samanta, Rajesh K. Sani
doaj   +1 more source

Microbiological Self-Ignition as a Cause of Fire: Guidelines for Investigators and Forensic Examiners

open access: yesТеория и практика судебной экспертизы, 2016
The paper presents a list of plant products prone to microbiological self-heating and spontaneous combustion. It examines the conditions and indicators of the emergence and development of these processes in hay and peat. An example from forensic casework
I. S. Taubkin
doaj   +1 more source

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