Combination of UV Oxidation with Other Treatment Technologies for the Remediation of Contaminated Water

1997 ◽  
Vol 2 (3) ◽  
Author(s):  
K. G. Bircher ◽  
W. Lem ◽  
K. M. Simms ◽  
B. W. Dussert
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Cost Effective ◽  
Integrated Systems ◽  
Contaminated Water ◽  
Air Stripping ◽  
Treatment Train ◽  
Treatment Technologies ◽  
Using Data ◽  
Uv Oxidation

AbstractThe use of stand-alone water treatment technologies such as UV/Oxidation, granular activated carbon (GAC), air stripping and sedimentation, has proven to be cost-effective in many cases. However, there are a substantial number of instances where a combination of treatment technologies integrated into a treatment train provides a more economical approach than would be obtained by using only one technology. This paper presents case studies of integrated systems where UV/Oxidation is combined with either GAC, air stripping, or precipitation. The benefits, including improved treatment costs, are described using data from actual installations.

Cost-effective water treatment of polluted surface water by using direct filtration and granular activated carbon filtration

2002 ◽  
Vol 2 (1) ◽  
pp. 233-240 ◽  
Author(s):  
J. Cromphout ◽  
W. Rougge
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Treatment Process ◽  
Treatment Plant ◽  
Granular Activated Carbon ◽  
Cost Effective ◽  
Water Treatment Plant ◽  
Direct Filtration ◽  
Carbon Filtration ◽  
Effective Water

In Harelbeke a Water Treatment Plant with a capacity of 15,000 m3/day, using Schelde river water has been in operation since April 1995. The treatment process comprises nitrification, dephosphatation by direct filtration, storage into a reservoir, direct filtration, granular activated carbon filtration and disinfection. The design of the three-layer direct filters was based on pilot experiments. The performance of the plant during the five years of operation is discussed. It was found that the removal of atrazin by activated carbon depends on the water temperature.

scholarly journals Pesticide removals in the nitrifying expanded-bed filter at drinking water treatment plant

2020 ◽  
Vol 15 (1) ◽  
pp. 1-13
Author(s):  
Nguyet Thi-Minh Dao ◽  
The-Anh Nguyen ◽  
Viet-Anh Nguyen ◽  
Mitsuharu Terashima ◽  
Hidenari Yasui
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Water Treatment ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Cost Effective ◽  
Water Treatment Plant ◽  
Field Analysis ◽  
Expanded Bed ◽  
Biological Activated Carbon

The occurrence of pesticides even at low concentrations in drinking water sources might induce potential risks to public health. This study aimed to investigate the removal mechanisms of eight pesticides by the nitrifying expanded-bed filter using biological activated carbon media at the pretreatment of a drinking water plant. The field analysis demonstrated that four pesticides Flutolanil, Buprofezin, Chlorpyrifos, and Fenobucard, were removed at 82%, 55%, 54%, and 52% respectively, while others were not significantly removed. Under controlled laboratory conditions with continuous and batch experiments, the adsorption onto the biological activated carbon media was demonstrated to be the main removal pathway of the pesticides. The contribution of microorganisms to the pesticide removals was rather limited. The pesticide removals observed in the field reactor was speculated to be the adsorption on the suspended solids presented in the influent water. The obtained results highlighted the need to apply a more efficient and cost-effective technology to remove the pesticide in the drinking water treatment process. Keywords: biological activated carbon; drinking water treatment; nitrifying expanded-bed filter; pesticide removal.

Technological Interventions in Management of Hg Contaminated Water

2018 ◽  
pp. 126-140
Author(s):  
Vidushi Abrol ◽  
Sharada Mallubhotla ◽  
Sundeep Jaglan
Keyword(s):  
Human Health ◽  
Cost Effective ◽  
Industrial Wastes ◽  
Mercury Contamination ◽  
Contaminated Water ◽  
Treatment Techniques ◽  
Innovative Methods ◽  
Technological Interventions ◽  
Treatment Technologies ◽  
Ancient Times

Rising cases of environmental mercury hazards has led to a need for cost-effective mercury treatment techniques. Extensive use of mercury from ancient times has resulted in water contamination that may require remediation. Mercury contamination is tedious to treat and may pose a risk to human health and the environment. To deal with this threat of mercury contamination, industrial wastes and wastewaters containing mercury requires treatment for its removal and immobilization. This chapter provides a synopsis of the availability, performance, and technologies for management of mercury in water. It covers the innovative methods to treat the mercury contamination like biosorption. In this chapter, the technological aspects available for the mercury treatment technologies are reviewed. It describes the theory, design, and operation of the technologies; provides information on commercial availability and use; and includes data on performance, where available.

Advanced Nanomaterials for Water Engineering and Treatment

2017 ◽  
pp. 84-126
Author(s):  
Rabia Nazir
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Metal Oxides ◽  
Fresh Water ◽  
Pollution Prevention ◽  
Cost Effective ◽  
Mixed Metal Oxides ◽  
Small Particles ◽  
Technological Developments ◽  
Treatment Technologies

Loading of water with multifarious pollutants has dwindled the availability of quality fresh water and put questions on reliability and efficacy of conventional water treatment technologies. Also the quest for developing robust and cost-effective methods with minimum impact on environment had driven the focus of researchers and technologists on new technological developments. Nanotechnology – better referred as Aqua-nanotechnology in this regard provides scientists a new dimension to deal this big problem with small particles having application in 1) water treatment, 2) remediation, and 3) pollution prevention. This chapter will focus on fabrication and use of advance nanomaterials categorized as nanoadsorbents and nanoatalysts for these three main areas. A range of materials exploited in this regard are single and mixed metal oxides and their composites with polymer, clay, carbon based materials etc. while keeping focus on technological developments taken place over the period in regard with treating water and waste water.

Activated carbon impregnation with ag and cu composed nanoparticles for escherichia coli contaminated water treatment

2019 ◽  
Vol 97 (9) ◽  
pp. 2408-2418 ◽  
Author(s):  
Flávia Sayuri Arakawa ◽  
Quelen Letícia Shimabuku‐Biadola ◽  
Simone de Lima Bazana ◽  
Marcela Fernandes Silva ◽  
Benício Alves de Abreu Filho ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Activated Carbon ◽  
Water Treatment ◽  
Contaminated Water

scholarly journals MANUFACTURING OF ACTIVATED CARBON USING DISPOSABLE COCONUT SHELLS FOR CATALYTIC ACTIVITIES AND WATER TREATMENT UTILIZATIONS

2020 ◽  
Vol 4 ◽  
pp. 6-9
Author(s):  
Suresh Aluvihara ◽  
C.S. Kalpage ◽  
P.W.S.K. Bandaranayake
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Cost Effective ◽  
Optical Microscope ◽  
High Porosity ◽  
Catalytic Activities ◽  
Different Temperatures ◽  
Microscopic Studies ◽  
Coconut Shells ◽  
Black Color

Activated carbon is a black color solid compound which is fabricated using naturally occurring materials such as woods and species of coal that composed of the majority in carbon. The activated carbon is highly remarkable compound in the catalytic activities in most of chemical industries and water treatment activities because of the significant performances of such activated carbon due to the sufficiency of the surface property which is called as the adsorption with the couple of high porosity. The manufacturing of activated carbon from disposable coconut shells and the investigations of the physic-chemical characteristics of such activated carbon were the expectances of the existing research. Domestically collected coconut shells were burnt in the range of different temperatures 390°C–300°C after removing unnecessary constituents. The chemical composition of the powdered activated carbon was inspected using an X-ray fluorescence (XRF) spectrophotometer and the surfaces of prepared activated carbon were examined using an optical microscope. As the outcomes of the above experiments, it seems that the most adequate burning temperature for the manufacturing of that batch of coconut shells was in the range of 330°C–350°C, 68.85% of ferrous and 31.15% of potassium as the composed metallic element apart from the non metallic carbon and the pure black color non- composite surfaces were observed under the microscopic studies. It is encouraged to develop this production using cost effective materials such as the shells of fesults which are belonging to the palm cast while utilizing the productions through the various applications in chemical industries

scholarly journals Physical characteristics of materials of Ecuadorian origin for water treatment

2021 ◽  
Vol 958 (1) ◽  
pp. 012020
Author(s):  
M Mayacela ◽  
L Maldonado ◽  
F Morales ◽  
B Suquillo
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Chemical Treatment ◽  
Laboratory Tests ◽  
Physical Characteristics ◽  
International Standards ◽  
Contaminated Water ◽  
Physical Chemical ◽  
Physico Chemical ◽  
Wastewater Pollutants

Abstract In Ecuador, contaminated water is discharged directly into the sewage system. The treatments carried out for the elimination of wastewater pollutants are classified into three types: Physical, Chemical and Biological. One of the treatments that is frequently used is the physico-chemical treatment in which various reactive substances are used, which is why in this research several reactive substances of Ecuadorian origin, including activated carbon, peat, limestone, volcanic pyroclasts, zeolite clinoptilolite and zeolite modernite, are physically characterized. For this purpose, some laboratory tests were carried out based on national and international standards in order to obtain the granulometry, compactness coefficient, porosity, sphericity and permea-bility.

Conceptual comparison of pink water treatment technologies: granular activated carbon, anaerobic fluidized bed, and zero-valent iron-Fenton process

2004 ◽  
Vol 49 (5-6) ◽  
pp. 129-136 ◽  
Author(s):  
S.-Y. Oh ◽  
D.K. Cha ◽  
P.C. Chiu ◽  
B.J. Kim
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Fluidized Bed ◽  
Granular Activated Carbon ◽  
Fluidized Bed Reactor ◽  
Zero Valent Iron ◽  
Fenton Process ◽  
Treatment Technologies ◽  
Non Destructive ◽  
Gac Adsorption

Pink water, explosive-laden wastewater produced in army ammunition plants is often treated using expensive and non-destructive granular activated carbon (GAC) adsorption. This paper compares GAC adsorption and two alternative treatment technologies, anaerobic GAC fluidized bed reactor and zero-valent iron-Fenton process. The bench-scale demonstration of the zero-valent iron-Fenton process with real pink water is reported. The features of three technologies are compared and their advantages and drawbacks are discussed.

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