Results 121 to 130 of about 199,436 (289)

Waste activated sludge high‐rate treatment of septage: Biodegradability studies and contact phase trials towards a cleaner environment

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The waste activated sludge high‐rate (WASHR) process, developed in our previous study, is used for septic wastewater treatment. This high‐rate contact stabilization pre‐treatment uses typical waste streams found in wastewater treatment plants to reduce a portion of the loadings on the main treatment trains.
Arman Shirali, Melody Blythe Johnson, Mehrab Mehrvar   +2 more
wiley   +1 more source

Study of a composting process in the green waste processing plant [PDF]

, 2019
Composting of sewage sludge together with green waste such as grass, leaves, branches, etc. is carried out in Poland in a number of facilities. A common problem of all compost plant operators is the selection of the type of composting technology and its ...
Pilarski, Grzegorz
core  

Characterization of a two‐phase hybrid flotation column

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study explored the performance of a novel hybrid flotation column, which combines the advantages of a mechanically agitated cell with a flotation column and compared the results with a conventional flotation column setup. The experiments were performed in an air/water two‐phase system under varying airflow rates, frother concentrations ...
Pedro Silva Aires, Artin Afacan, Qi Liu, Vinay Prasad   +3 more
wiley   +1 more source

Model based study of autothermal thermophilic aerobic digestion (ATAD) processes : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Engineering and Automation of Massey University [PDF]

, 2000
An Autothermal Thermophilic Aerobic Digestion process, or ATAD process, is a relatively new sewage sludge treatment process. The ATAD process has been developed for the disinfection and stabilisation of sewage sludge, which is a by-product of wastewater ...
Fryer, Barry
core  

A hidden Markov model and reinforcement learning‐based strategy for fault‐tolerant control

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study introduces a data‐driven control strategy integrating hidden Markov models (HMM) and reinforcement learning (RL) to achieve resilient, fault‐tolerant operation against persistent disturbances in nonlinear chemical processes. Called hidden Markov model and reinforcement learning (HMMRL), this strategy is evaluated in two case studies
Tamera Leitao, Debaprasad Dutta, Simant R. Upreti   +2 more
wiley   +1 more source

Effect of light and aeration on the metamorphosis rate from nauplii to protozoea and larval quality of Litopenaeus vannamei [PDF]

Biotemas, 2010
In order to determine the optimal ranges of the factors light intensity and aeration that reflect the best rate of metamorphosis from nauplii to the first protozoea stage of Litopenaeus vannamei, and also the highest quality of the larvae, two separate ...
Hadja Radtke Nunes, Edemar Roberto Andreatta   +1 more
doaj  

Economic and environmental implications of the development of UASB reactors in Mexico for sustainable industrial wastewater treatment

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The objective of this work is to demonstrate that the inclusion of an up‐flow anaerobic sludge bed (UASB reactor) within an industrial wastewater treatment plant reduces the plant's investment and operating costs compared to a system based solely on conventional complete‐mix activated sludge (CMAS), operating under the same design principles ...
Juan Manuel Morgan‐Sagastume, Adalberto Noyola   +1 more
wiley   +1 more source

Iron(III)‐loaded cation exchange resin: A dual approach for aqueous H2S removal and biogas desulphurization

The Canadian Journal of Chemical Engineering, EarlyView.
Left: Desulphurization method application. Right: Novel desulphurization method. Abstract The presence of hydrogen sulphide (H2S) in biogas poses significant environmental and operational challenges due to its corrosive and toxic properties. Thus, this study aimed to develop a dual‐function desulphurization system using a cation exchange resin (CIER ...
Matheus Damásio Thrun, Renata Mello Giona, Eduardo Eyng, Eduardo Borges Lied, Laércio Mantovani Frare, Ismael Laurindo Costa Junior, Ilton José Baraldi   +6 more
wiley   +1 more source

Valorization of Juice Industry Waste Into Foam‐Like Materials Using Mycelium as Natural Binder

CleanMat, EarlyView.
This study explores converting carrot pomace, a juice industry byproduct, into eco‐friendly mycelium‐based foams using Aspergillus oryzae. The foams, produced via submerged cultivation, grinding and freeze‐drying, showed promising mechanical properties comparable to commercial foams, offering a sustainable alternative to synthetics while promoting ...
S. Najmeh Mousavi, Paula Pou I Rodríguez, Juliana Aristéia de Lima, E. R. Kanishka B. Wijayarathna, Sunil Kumar Ramamoorthy, Minna Hakkarainen, Akram Zamani   +6 more
wiley   +1 more source

Greenhouse climate control system based on fuzzy logic

Омский научный вестник
Paper is devoted to development and research of the fifth generation greenhouse climate automatic control system. This system is based on fuzzy logic toolbox and it allows to automate control processes using the latest developments in this field.
L. A. Payuk, N. A. Voronina, A. D. Umurzakova, E. E. Lazutkina, K. V. Khatsevskiy   +4 more
doaj   +1 more source