Raw Water Sample Articles & Analysis
18 articles found
TECTA Automated Microbiological Testing System Being Used Successfully at a Surface Water Treatment Plant in Tampa, FL. The TECTA automated microbiological testing system has received an enthusiastic welcome, where it is being used for operational testing for E. coli and Total Coliform bacteria in both raw and fi nished water ...
Using surveillance data from Ontario drinking water systems, mixed effects linear regression was performed to examine the effect of fluoridation status on the difference in arsenic concentration between raw water and treated water samples. On average, drinking water treatment was found to reduce ...
Results also showed that peCOD/TOC (total organic carbon) ratios followed predicted values from stoichiometry, when peCOD was a good predictor of ThOD. peCOD determination for surface water showed that peCOD was measurable in the raw and treated drinking water range and trended with other organic matter surrogates. Finally, pooling of ...
The most interesting results of the study related to how poorly the operators responded to changing raw water parameters when given daily grab sample results and how much better they were able to respond when allowed to utilize the on-line analyzer. The on-line TOC analyzer allowed the operators to track real time water quality ...
This study aimed to test the effects of raw water samples from a eutrophic reservoir and of a saxitoxin‐producing strain of Cylindrospermopsis raciborskii on the swimming behavior of two key herbivore species of Daphnia. ...
Coagulation experiments were done using raw water samples from two treatment plants (herein referred to LMTP and LNTP) in Mauritius in jar tests using Moringa oleifera (MO) extract and Sudfloc. ...
This paper examines the interaction between dissolved natural organic matter and pesticide residues, both of which are found in raw water sources, using three dimensional excitation–emission matrix (3DEEM) fluorescence spectroscopy. It was observed that pesticide residue at 0.1 mg L−1 formed a complex with humic-like fluorophores that are commonly ...
In low income settlements where the quality of drinking water is highly contaminated due to poor hygienic practices at community and household levels, there is need for appropriate, simple, affordable and environmentally sustainable household water treatment technology. Solar water disinfection (SODIS) that utilizes both the thermal and ...
A relatively new concern to this list is natural organic matter (NOM) which has become a major concern in potable water treatment due to its recent regulation. In this study, eight different raw water samples from the various water types found in the country were seasonally collected and treated for the removal ...
Thus, we employed qPCR to quantify Campylobacter spp. in fresh- and marine-water samples, raw sewage and animal feces. Multiplex PCR determined whether Campylobacter jejuni or C. coli, most commonly associated with human disease, were present in qPCR-positive samples. Campylobacters were detected in raw sewage, ...
The protocols for E. histolytica PCR detection in real water samples were then optimized by spiking E. histolytica cells into tap water and reservoir raw water samples. A two-round centrifugation treatment to concentrate amoeba cells directly as a PCR template was the most effective way to detect ...
This paper presents the results of the long term biofilter experiments conducted with raw stormwater collected from a canal at Carlton, in Sydney. Anthracite and granular activated carbon (GAC) were used as a single filter media in biofilter columns. ...
Computerized simulations were used to guide us throughout the pilot project. Three complete raw and treated water analyses were carried out on days 1, 30, and 50 of the project to obtain a more comprehensive range of possible variables in the quality of the raw and treated water. ...
The objective of this paper was to investigate the presence of Giardia cysts and Cryptosporidium oocysts in samples from watershed catchments and treated water sources. A total of 25 water samples were collected and examined according to the US EPA—Method 1623, 2005, consisting of 12 from drinking water and 13 ...
Water and waste companies are already taking climate change into account, with various scenarios forming a key part of AMP business plan submissions to the water industry regulator, OFWAT, and the long-term water resources planning process. ...
This paper presents both a current review of the state-of-the-art in algae removal, and an experimental study of algae removal in potable water supply. Established techniques were investigated by jar-testing on surface raw water samples derived from a lowland river, with the dominant species of algae being Scenedesmus sp (a green ...
Now the mussel’s distribution has spread to two river systems in central Japan. Water authorities reported several cases of damage caused by L. fortunei. Most cases of damage were caused by dead mussels clogging small diameter pipes for raw water sampling and monitoring and for cooling water. Clogging of ...
Most cases of damage were caused by dead mussels clogging small diameter pipes for raw water sampling and monitoring and for cooling water. Clogging of cooling water pipes stopped raw water pumping to a water purification plant and caused the shutdown of a ...