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Plasma treatment could generate UV radiation, chemical reactions, and radicals that be able to modify the properties of a wide range of materials, including water. Water treated by plasma produces reactive nitrate-nitrogen and oxygen species that useful for the fertilization of agriculture soil and plant growth. Moreover, the water treated by plasma can be used for increasing postharvest quality of...
Access to potable water is currently a major concern due to population growth and the decline in clean water sources. One of the most important processes applied during the treatment of water, is the removal of pathogens as bacteria due that can reduce the preventable mortality of infectious intestinal diseases. Previous studies on the manufacture of films based on rutile-phase titanium dioxide nanoparticles...
We present the Autonomous Microbiological Alert Sensor (AMAS), an automatic and remotely-controlled microbiology sensor for field Total Coliform (TC) and Escherichia Coli (E. coli) quantification at remote or difficult-to-access sites. Deployed directly in the environment like a floating buoy, the AMAS is fully waterproof and is capable to perform up to seven independent microbiological determinations...
The control and sanitation of water it's a worldwide concerning problem. In particular is in developing countries where the need is more evident due to the lack of sources and appropriate structures to cope with the outbreaks of waterborne diseases. In most of cases, the cause of these significant epidemiological events have microbial origin. Despite of it the situation of water supplies and sanitation...
This paper describes the technical and organizational infrastructure designed to integrate a bio sensing based water quality evaluation system into a nascent water well monitoring and response program in the Terban district of Yogyakarta, Indonesia. The system AirKami (Bahasa Indonesia for 'our water'), combines a desktop bio incubator, flexible and scalable IT data management, local ecological knowledge...
In the food matrix are involved very elemental products like water to other more complex like, for example, processed and non processed, vegetables and dairy products. All these matrix pass very restrictive controls and a intensive monitoring during the processing time to evaluate their safety and quality. The early detection of the contamination is critical to preserve the consumer's health and to...
In Bangladesh the problem of arsenic in tubewell water can be easily solved through switching back to arsenic free surface water that was used since ancient times. The main hazard of surface water is diarrhoeal germs, but these can be easily destroyed by heating to or above 60°C. The present work describes the innovation of a very low cost domestic scale solar device for use in rural areas that can...
In this paper tetrakis(hydroxymethyl) phosphonium sulfate(THPS) as environmental friendly biocide was studied for daily indoor disinfection. Because THPS in indoor air disinfection performance and its toxicity had been verified by us, the experiments of THPS in water disinfection performance, durability test, and contrast after spraying THPS&H2O into air were done. Results showed the highest sterilization...
Airborne microorganisms in four different units (rack chamber, aeration tank, sludge thickening tank and sludge dewatering facility) in certain wastewater treatment plant in Beijing were chosen as research object and their distribution characteristics were studied. Results showed that the concentrations of heterotrophic bacteria and fungi in different units had significant differences. The aeration...
The disinfection efficiency of Cl2 and ClO2 on water purification was compared. The result showed that with the same dosage, ClO2 had better bactericidal efficiency than Cl2 and produced less trihalomethane compounds than Cl2. ClO2 disinfection has the advantages of high efficiency and safety in use. ClO2 was suggested as a new disinfectant in supply water treatment.
The unstable treatment of produced water was one of the puzzles for the exploitation of extra-low permeability oilfield. This work was to give a comprehensive estimation for the characteristic of the extra-low permeability oilfield produced water. For this purse, the produced water samples were collected from the produced water treatment plant located in Daqing. The physical, chemical and microbiological...
Cataract surgery is the most common surgery in the world. However, biofouling threatens the success of these surgeries. This in vitro study investigated lubricin's ability to modify polymer surfaces to resist biofouling, specifically bacterial colonization. This study investigated surface energy changes caused by lubricin coatings as well as lubricin's ability to reduce bacterial proliferation. The...
Identification and analysis of contaminants arising from occasional release or intentional discharge in unsecured water supplies are fundamental to public welfare. This calls for national and international capacities to respond, sense, detect, isolate, and mitigate threats to water quality. Using advanced nanomaterials as enabling technologies, a series of novel point and stand-off sensors and detectors...
Shrimp wastewater was studied by using photosynthetic bacteria sludge method. The results indicated that this method got better effects than single sludge or only photosynthetic bacteria treatment. The removal of the CODcr could reach 63%, the removal of the NH3-N could reach 92.5 %. Compared with conventional methods, it had easier operation, lower cost; and need not deal with the problem of sludge...
To construct a simple model cellular system exhibiting the property of self-propelled motion, cell-sized giant liposomes encapsulating desired amounts of actoHMM, a mixture of actin filament (F-actin) and heavy meromyosin (HMM, an actin-related molecular motor), have been prepared. We adapted the methodology of spontaneous transfer of a water droplet through oil/water interface in the presence of...
The test study on the removal of SO2 and NOx simultaneously from flue gas by a new-type method was performed. The results showed that the purification efficiency of SO2 and NOx in flue gas could reach at 97% and 67% respectively under the optimum operation condition of liquid-phase catalytic oxidation-biological purification system. The bacteria in biofilms may have stronger resistance to the catalytic...
Near real-time ocean color data from the Seaviewing Wide Field-of-view Sensor (SeaWiFS) was used to detect and trace harmful algal bloom (HAB) (also termed as red tides) in the Southwest Florida coastal water, which was treated as Case-2 water, i.e., its optical characteristics are influenced not only by phytoplankton and related particles, but also by other substances, that vary independently of...
Preparation for sampling various forms of phosphorus using potable water, soluble reactive phosphorus water, particulate phosphorus water, poly-phosphorous and river water were conducted to culture microorganism, and prepared total phosphorus concentration ranged between 0μg/L and 100μg/L. Total bacterial count was measured after 24 hours. Results showed the sequence of growing rate priority was as...
Summary form only given. Dermatophytes are the most common aetiological agents, which invade into keratinized tissues (skin, hair, nails) of humans and animals causing dermatophytosis (also known as ringworm or tinea). Swimming pools, fitness centers, barber shops, beauty parlors, saunas and steam baths are common places to pick up superficial fungal infections. Mycotic infections have become more...
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