Drinking Water Microbiology Articles
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What are the 8 water quality testing parameters?
Water is an essential resource, and its quality is vital to ensure the well-being of individuals and the environment. Therefore, water quality testing is a crucial process that needs to be conducted periodically to assess the suitability of water for various purposes. In this blog post, we will discuss the eight parameters that are commonly tested to determine water quality. 1. pH Level The pH ...
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Monitoring Water Quality in Groundwater Studies
Groundwater derives from fresh water, such as rain or melted snow. It seeps under the Earth’s surface level into the pores between rocks, sand and soil. The water can be stored in these pores for many years or released into a river or the sea when the storage area becomes saturated. Because groundwater can quickly become contaminated, groundwater studies must be carried out. This post will ...
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Project - Horizon 2020: Urbantech
Value chain innovations in emerging Health Tech, Smart City and Greentech industries addressing the challenges of smart urban environment. Today’s urban systems need to adapt to a growing population in order to sustain and provide a healthy, smart and green environment. Smart technologies, solutions and innovations are needed. The EU-funded URBAN TECH project will support the acceleration ...
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Sustainable Technology: How Such Technologies Are Set to Revolutionize the Industrial World?
Today, we live in a consumeristic society, where every industry aims to fulfill the needs and demands of the customers in the most effective way. Since the industrial sector brings in a massive amount of revenue, industry owners ensure that their sites are equipped with high functioning and reliable technologies. In this article, we will bring under purview how deploying sustainable technologies ...
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Evidence Shows Need to Address Pathogenic Bacteria in U.S. Drinking Water Systems
Legionnaires’ disease is on the rise. Unfortunately, efforts to prevent Legionnaires’ disease to date have focused on building water systems rather than the municipal water supply. Building water systems are too far downstream to correct the problem, and, as a result, these efforts have been ineffective in curbing the incidence of legionellosis. It is unrealistic to place on building ...
By Evapco Inc.
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Illness from tap water
Bacteria and virus In every water pipe there are billions of bacteria and virus in layers of sediment and sludge. When released in small numbers, they are instantly killed by the chlorine in the water, but when pieces of sludge are ripped off by pressure changes in the pipes, there is not enough chlorine and you may get “intestinal flue” or some more serious ...
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Drinking water standard revision catches up with UV-LED
New criteria for microbial reduction An international standard on drinking water treatment has been updated following developments and the roll-out of UV-LED (ultraviolet-light emitting diode) technology. NSF International, the body accredited by the American National Standards Institute (ANSI), has established new criteria for the use of UV-LED technology for microbial reduction. The standard ...
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Retaining the natural approach for bottled and flavoured water - Case Study
The continued growth in the market for bottled waters and flavoured waters means increasing demands for water purification at formulation and packaging facilities. Demand for Water Purification is Growing The continued growth in the market for bottled waters and flavoured waters means increasing demands for water purification at formulation and packaging facilities. To ensure that ...
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Long Lake Colony Case Study
Long Lake Colony Farm is an 1,800-head swine operation located in Wetonka, South Dakota that uses a 25,000 gallon per day capacity well-water system. Preliminary testing of the system showed elevated bacteria levels in the farm’s water. The water quality also contributed to clogged water lines in the animal drinking system. The bacteria and water line issues resulted in strep problems in ...
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Why is water the first thing communities need?
Clean water is the essential first step towards eliminating poverty. Currently, over 1 billion people outside of the United States do not have access to clean water.[i] That’s 1,000,000,000 people without access to safe water. According to WHOlives’ research, “There are no examples of communities that have eliminated poverty without first solving their scarce and contaminated ...
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Biological Filtration: Future of Drinking Water Treatment
Water is essential for all human life on the planet, but the fresh water supply is limited and is susceptible to being contaminated by all manner of toxins like arsenic, calcium, and mercury. There are many techniques to remove contaminants, including popular methods that add chemicals to balance others out, but one that not many people understand is biological water system filtration. Biological ...
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Effectiveness of silver and copper infused ceramic drinking water filters in reducing microbiological contaminants
A series of bench-scale experiments were conducted on ceramic filters with various amounts of silver and/or copper nanoparticles fired-in during the manufacturing process. The experiments were designed to determine the efficacy of the filters on the removal of pathogens from drinking water. Escherichia coli and MS2 were employed as non-pathogenic surrogates for pathogenic organisms. ...
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In-situ features of LNA and HNA bacteria in branch ends of drinking water distribution systems
The knowledge of bacteria with low or high nucleic acid (LNA or HNA, respectively) content was relatively limited in drinking water distribution systems (DWDSs). In the present study, LNA and HNA bacterial growth characteristics and effect of water physicochemical properties on these two subgroups were analyzed at the branch ends of a DWDS. The results showed that LNA bacteria were in the ...
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Effect of sodium hypochlorite on typical biofilms formed in drinking water distribution systems
Human health and biological safety problems resulting from urban drinking water pipe network biofilms pollution have attracted wide concern. Despite the inclusion of residual chlorine in drinking water distribution systems supplies, the bacterium is a recalcitrant human pathogen capable of forming biofilms on pipe walls and causing health risks. Typical drinking water bacterial biofilms and ...
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Identification of the bacterial population in manganese removal filters
The aim of this study was to identify bacteria present in ripened manganese removal filters for drinking water production. The bacterial population was identified with ‘next generation’ DNA sequencing, and specific bacteria were quantified with quantitative polymerase chain reaction (qPCR) and characterized by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry ...
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Development and evaluation of a small scale water disinfection system
Provision of microbiologically safe drinking water for people living in the rural areas of developing countries remains a major challenge to date. A simple gravity-driven membrane point of use system was developed based on woven fabric microfiltration (WFMF) membranes. The WFMF is a loose type of membrane (0.45 μm). However, complete disinfection is not achieved with the WFMF, hence it was ...
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Pathogenic features of heterotrophic plate count bacteria from drinking-water boreholes
Evidence suggests that heterotrophic plate count (HPC) bacteria may be hazardous to humans with weakened health. We investigated the pathogenic potential of HPC bacteria from untreated borehole water, consumed by humans, for: their haemolytic properties, the production of extracellular enzymes such as DNase, proteinase, lipase, lecithinase, hyaluronidase and chondroitinase, the effect ...
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Quantitative real-time PCR does not reliably detect single fecal indicator bacteria in drinking water
The microbial quality of drinking and environmental water is usually determined by culture-based detection of fecal indicator bacteria according to ISO reference methods 16649-1 and 7899-2, respectively. Because of an increasing demand for rapid, culture-independent methods, we tested three quantitative polymerase chain reaction (qPCR) approaches for the simultaneous detection of both, ...
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Bacteriological assessment of aquifer storage and recovery (ASR) water in southwest coastal Bangladesh
Safe drinking water is scarce in southwest coastal Bangladesh. Harvested rainwater and rain-fed pond water are the main sources of drinking water for people living in this area. Both government and non-government organizations are promoting aquifer storage and recovery (ASR) schemes to provide safe drinking water for this population. This study assessed the bacteriological quality of both ...
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Occurrence of toxic cyanobacteria and microcystin toxin in domestic water storage reservoirs, Egypt
Residents in many developing countries store treated drinking water in tanks or reservoirs because of intermittent and infrequent water supplies. Many studies have focused on bacterial contamination of domestic reservoir waters, the cyanobacterial and algal contamination is largely unexplored. Therefore, the present study investigates toxic cyanobacteria and their microcystin (MC) toxins in ...
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