OBJECTIVES: The main objectives of this project were to (1) conduct a systematic investigation for developing a fundamental understanding of how activated carbons should be tailored for enhanced removal of dissolved organic matter (DOM) from natural waters; and (2) investigate the effectiveness of some carbon tailoring approaches for disinfection by-products (DBP) formation control at typical d...

Traditionally, wastewater treatment has been a combination of physical, biological, and chemical treatment methods. Physical methods of treatment include settling and sand filtration, biological methods include aerobic activated sludge, denitrification, and anaerobic digester treatment systems, while chemical methods include phosphate removal, dye and endocrine disruptor removal, and disinfecti...

Giardia duodenalis is a protozoan of public health interest that causes gastroenteritis in humans and other animals. In the city of Campinas in southeast Brazil, giardiasis is endemic, and this pathogen is detected at high concentrations in wastewater effluents, which are potential reservoirs for transmission. The Samambaia wastewater treatment plant (WWTP) in the city of Campinas employs an ac...

Many drinking water utilities have recently changed or are seriously considering changing their disinfection practice from chlorine to some alternative treatment process. However, most of these utilities are changing their disinfectants without evaluating chemical impacts. Therefore, a research cooperative agreement was developed with Jefferson Parish, LA, to evaluate four parallel streams trea...

Plasma-activated tap water (PATW) is a new technology for obtaining high concentration of active aqueous plasma substances by discharging underwater. Commonly plasma-activated (PAW) realized activating deionized or distilled water, which has problems such as cost, small discharge area, and insufficient dissolution substances. This paper reports the development dielectric barrier array to genera...

One of the reasons for non-compliance with requirements regulatory documentation powdered materials, including drugs is microbiological contamination. The search alternative technical approaches bactericidal disinfection using modern physical methods relevant research. Checking compliance activated carbon «Silcarbon», which used in medicine as a sorbent, showed that number fungi (TYMS) exceeds ...

INTRODUCTION Various different learning methods are available for planning tuition regarding the introduction to surgical hand disinfection. These learning methods should help to organise and deal with this topic. The use of a video film is an alternative to conventional tuition due to the real presentation possibilities of practical demonstration. OBJECTIVE This study examines by way of comp...

Photodynamic therapy (PDT), also known as photoradiation therapy, phototherapy, or photochemo therapy, involves the use of a photoactive dye (photosensitizer) that is activated by exposure to light of a specific wavelength in the presence of oxygen. The transfer of energy from the activated photosensitizer to available oxygen results in the formation of toxic oxygen species, such as singlet oxy...

Background & objective: The presence of natural organic matter in water sources creates various problems, especially in common water treatment process. These compounds cause unfavorable taste and odor in water and are among the most important precursors of water disinfection by-products. This study was carried out to evaluate the efficiency of activated carbon (AC) and activated carbon modified...