drinking water treatment Articles
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Research on raw water quality assessment oriented to drinking water treatment based on the SVM model
Raw water quality variation has a great effect on drinking water treatment. To improve the adaptivity of drinking water treatment and stabilize the quality of treated water, a raw water quality assessment method, which is based upon the support vector machine (SVM), is developed in this study. Compared to existing raw water quality assessment methods, the assessment method studied herein is ...
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Competitive adsorption of micropollutants and NOM onto activated carbon: comparison of different model approaches
Conventional adsorption models are not able to describe exactly the competitive adsorption of natural organic matter (NOM) and micropollutants during drinking water treatment with activated carbon. This problem is a consequence of the complex structure of natural organic matter. In the last years, two user-oriented model approaches, the tracer model (TRM) and the equivalent background compound ...
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Algae control in drinking water treatment - case study
For the Ministry of Agriculture in Cyprus, LG Sound b.v installed 33 LG Sonic, ultrasonic devices in the Limassol water treatment plant, to prevent bad odour and taste to the water caused by geosmins in the water. The earthy taste problem persisted during summer of 2010 and various physical, chemical and biological tests were done in order to check the process efficiency, which showed problems ...
By LG Sonic
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Improvement on algae and turbidity removal in an integrated flotation and sedimentation unit using side flow-inclined plate settlers: evidence from a full-scale field experiment
Operation of conventional drinking water treatment plants (DWTPs) is limited by seasonal variations in the characteristics of raw water, such as algae levels and turbidity. In this study, an integrated flotation and sedimentation unit (IFSU) with side flow-inclined plate settlers (SFIPS) was applied to enhance the removal ratio of algae and turbidity in a full-scale field experiment. To ...
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Evaluation of norovirus removal performance in a coagulation–ceramic microfiltration process by using recombinant norovirus virus-like particles
Norovirus (NV) is a prototype strain of a group of human caliciviruses responsible for epidemic outbreaks of acute gastroenteritis worldwide. Because of the lack of a cell culture system or an animal model for this virus, studies on drinking water treatment such as separation and disinfection processes are still hampered. In the present study, we investigated NV removal performance as particles ...
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Performance of PAC/PDM composite coagulants for removal of algae from Lake Taihu waters in summer
The enhanced coagulation of algae-rich raw water from Lake Taihu in summer was studied by use of composite coagulants. The composite coagulants were composed of polyaluminum chloride (PAC) and polydimethyldiallylammonium chloride (PDM) with various intrinsic viscosity values (0.55–3.99 dL/g) and different mass percentages (5–20%) in the formulation. For raw water with temperature of 28–29°C and ...
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Grab the best wastewater treatment service provider
The hazardous organic wastes are immensely increasing by industries, militaries as well as by the domestic sources. It is an emerging issue in the recent days and needs immediate actions by government or by any private organization. To reduce the effects of the hazardous waste from the environment, the advanced oxidation process is considered as an efficient technique that helps in removing the ...
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Tracking disinfection by-products and arsenic removal during various drinking water treatment trains
In the central Banat region (Northern Serbia), groundwater is used as a drinking water source. Raw water originates from a 40–80 m and 100–150 m deep layer. It contains a high amount of natural organic matter (DOC = 9.17±0.87 mg C/L) with a trihalomethanes formation potential of 448±88.2 μg/L and a haloacetic acid formation potential of 174±68.9 μg/L. A high amount of arsenic (86.0±3.4 μg/L) is ...
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Evaluation of fluorescence excitation–emission and LC-OCD as methods of detecting removal of NOM and DBP precursors by enhanced coagulation
Bench-scale tests were conducted to evaluate enhanced coagulation as a method for removing natural organic matter (NOM) from a surface water to reduce the formation of disinfection by-products (DBPs). Aluminium sulphate (alum) and two polyaluminium chloride (PACl) coagulants were used, as well as alum with pH depression. Using a PACl coagulant alone or alum with pH depression was shown to attain ...
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Effects of the incorporation of drinking water sludge on the anaerobic digestion of domestic wastewater sludge for methane production
Water purification and wastewater treatment generate sludge, which must be adequately handled to prevent detrimental effects to the environment and public health. In this study, we examined the influence of the application of settled sludge from a drinking water treatment plant (SDWTP) on the anaerobic digestion (AD) of the thickened primary sludge from a municipal wastewater treatment plant ...
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Case Study: UV254 Organics Analyzer Helped Save 20-30% in Chemical Costs for Drinking Water Treatment
The Ridgway Water Treatment Plant (WTP) in Elk County Pennsylvania uses a Real Tech Real UV254 online analyzer to achieve a 20-30% savings in annual coagulant use in their conventional water treatment process. The dual-feel Real UV254 analyzer is used to continuously monitor raw and finished water dissolved organics via a single online analyzer. Beyond operational cost savings, the Real UV254 ...
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The response of typical South African raw waters to enhanced coagulation
Drinking water treatment plants in South Africa rely almost entirely on surface water sources, which are often compromised due to high return flows and indirect reuse. The typical treatment plants focus on the removal of physical and microbial contaminants which include turbidity, colour, chemical compounds and microorganisms. A relatively new concern to this list is natural organic matter ...
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What is Sustainable Flocculation and What are Sustainable Flocculants?
What is Sustainable Flocculation? In most standard drinking water and wastewater treatment systems, there is a flocculation process that is used to reduce the concentrations of solids within the effluent stream. This particular process makes use of substances that aid in the clumping together of suspended particles among other contaminants in a clarifier system. Sustainable flocculation ...
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Abrasive wear of piston diaphragm pumps at French WTP results in process change to peristaltic technology - Case Study
Bredel APEX 20 peristaltic pumps from Watson-Marlow Fluid Technology Group (WMFTG) have replaced piston pumps at a water treatment plant in Limoges, France. The move away from piston pumps – which are prone to abrasive wear and clogging - has resulted in significant process improvements. This includes reduced maintenance time, improved reliability and reduced the need to purchase supporting ...
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A new look at Bromine - a potential sleeping giant?
The daunting challenge By now, most in the international drinking water industry are very familiar with the UN Millennium Development Goal to reduce by half the number of people lacking daily access to safe drinking water by 2015 and that the majority of the world’s 1.1 billion in greatest need are living in developing and under-developed countries. In some of the developing world’s ...
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How Can Zeoturb Flocculant Provide Effective Floccculation Water Treatment While Protecting Sewer Networks?
Concrete distribution and sewer networks are being corroded at an alarming rate partly because of a commonly used additive for conventional flocculation water treatment for domestic drinking water and waste water treatment process according to published reports in the respected journal Science. In countries throughout the world from industrialized nations like Australia and the USA to developing ...
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Customer Review: Yes, I Am A Fan of Solarbees. They Simply Work.
Sometimes you read something and you just can’t help having a smile on your face. The below customer email is posted in its entirety save a few redacted names to protect their location and identity. This project was about using SolarBees to solve a cyanobacteria problem in a lake in the southeast United States. I would be more than happy to give a positive reference and be a part of the ...
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Tubular Membrane Wastewater Treatment Equipment
Jiarong TUF equipment has high operational flux and replaceable components, and are designed to prevent the buildup of pollutants. With more than 10 years of experience in industrial membrane separation technology, Jiarong Technology provides customers with tubular membrane and complete equipment products, tubular membrane application process development and engineering design. Technical Details: ...
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A novel technology to improve drinking water quality using natural treatment methods in rural Tanzania
It is estimated that one billion people worldwide do not have access to treated drinking water. This paper reports on an investigation into the potential of indigenous or natural water treatment methods as alternatives to conventional chemical water treatment methods. The seeds of five natural plant species—Vigna unguiculata, Phaseolus mungo, Glycine max, Pisum sativam, and Arachis hypogea—were ...
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Optimal strategy for algae control in potable water treatment facilities
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 algae). These tests were conducted both in isolation and in ...
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