Results 21 to 30 of about 190,983 (261)

Evaluating the Applicability of High-Speed Air Flotation Technology for Water Supply: A Case Study in Tianjin Binhai New Area

open access: yesSeparations, 2022
The development and application of advanced water purification technology is crucial to guarantee a sufficient supply of clean water. However, conventional water purification technology consumes large amounts of coagulants, with the formation of ...
Shuyan Gong   +5 more
doaj   +1 more source

Analysis of the obligations for the assessment of the health risks related to the hygiene of air conditioning systems in indoor workplaces, with reference to the Risk Assessment Document (DVR) and to the microclimate conditions [PDF]

open access: yesE3S Web of Conferences, 2022
Safety in the workplace has been regulated for years in Italy in a very complete manner and very often it is identified as a set of rules governed by the Legislative Decree of 9 April 2008, n.
Gandini Jacques
doaj   +1 more source

Comparative Analysis of Health Risks Associated with the Operation of Ventilation Systems in a School Kitchen [PDF]

open access: yesE3S Web of Conferences
This study analyzed whether there was a difference in fine dust concentration depending on the operation of existing school kitchen ventilation equipment.
Sohn Jong Ryeul, Shin Saemi
doaj   +1 more source

Study on the Scavenging Effect of Steady-state Displacement Air Purification System on Indoor Bioaerosol

open access: yesAerosol and Air Quality Research, 2022
Many types of microorganisms, including SARS-CoV-2, can spread through aerosols. Indoor medical environments are abundant in bioaerosols, which can cause infections among medical staff members and patients in hospitals.
Lijuan Wu   +6 more
doaj   +1 more source

The Purification of Air [PDF]

open access: yesScientific American, 1886
n ...
openaire   +1 more source

Conversion of Kitchen Waste into Sustainable Fertilizers: Comparative Effectiveness of Biological, Microbial, and Thermal Treatments in a Ryegrass Growth Trial

open access: yesApplied Sciences
This study investigated the conversion of kitchen waste into environmentally friendly fertilizers and soil improvers using five various treatments: (1) inoculation with effective microorganisms followed by anaerobic fermentation, (2) 12 days of decay ...
Ksawery Kuligowski   +4 more
doaj   +1 more source

Performance evaluation of fundamental technologies in Filter Containment Venting System and application to mobile air purification system

open access: yesNihon Kikai Gakkai ronbunshu, 2022
Through the research of Filtered Containment Venting System (FCVS), air purification methods have been developed, such as technologies of scrubbing, metal fiber, silver zeolite and mobility.
Masaki NAGASHIO   +5 more
doaj   +1 more source

Optimization of TiO2-based UV-LED Photocatalytic System for Mixed Dyes and Pharmaceutical Contaminants

open access: yesBulletin of Chemical Reaction Engineering & Catalysis
To optimize the working efficiency of the novel UV-LED system based on TiO2 photocatalyst, the influence mechanism of LED lamp arrangement, light source wavelength and working voltage on photocatalytic efficiency was investigated.
Zexiang Chen   +3 more
doaj   +1 more source

An Investigation on the Efficiency of Air Purification Using a Biofilter with Activated Bed of Different Origin

open access: yesChemical and Process Engineering, 2014
Recent studies in the area of biological air treatment in filters have addressed fundamental key issues, such as a biofilter bed of different origin composed of natural zeolite granules, foam cubes and wood chips.
Zagorskis Alvydas, Vaiškūnaitė Rasa
doaj   +1 more source

Analyzing and Predicting the Agronomic Effectiveness of Fertilizers Derived from Food Waste Using Data-Driven Models

open access: yesApplied Sciences
This study evaluates and estimates the agronomic effectiveness of food waste-derived fertilizers by analyzing plant yield and the internal efficiency of nitrogen utilization (IENU) via statistical and machine learning models.
Ksawery Kuligowski   +7 more
doaj   +1 more source

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