METHODS FOR DETERMINING ORGANIC MATTER AND COLOUR IN WATER

2010 ◽  
Vol 2 (5) ◽  
pp. 5-8
Author(s):  
Ramunė Albrektienė ◽  
Mindaugas Rimeika
Keyword(s):  
Organic Matter ◽  
Water Treatment ◽  
Organic Compounds ◽  
Wave Length ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Water Filtration ◽  
Humic Matter ◽  
Sand Filters ◽  
Start Up

The article examines different methods for determining organic matter and colour in water. Most of organic compounds in water have a humic substance. These substances frequently form complexes with iron. Humic matter gives water a yellow-brownish colour. Water filtration through conventional sand filters does not remove colour and organic compounds, and therefore complicated water treatment methods shall be applied. The methods utilized for organic matter determination in water included research on total organic carbon, permanganate index and the bichromate number of UV absorption of 254 nm wave length. The obtained results showed the greatest dependence between water colour and permanganate index. However, UV adsorption could be used for organic matter determination during the operation of a water treatment plant and the start-up of plants as easy and fast methods.

Up-flow roughing filtration: rehabilitation of a water treatment plant in Tarata, Bolivia

1998 ◽  
Vol 37 (9) ◽  
pp. 105-112 ◽  
Author(s):  
Ana María Ingallinella ◽  
Luis María Stecca ◽  
Martin Wegelin
Keyword(s):  
Water Treatment ◽  
Pilot Plant ◽  
Laboratory Tests ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Horizontal Flow ◽  
Design Parameters ◽  
Sand Filters ◽  
Chemical Products ◽  
Made In

This paper presents the methodology used for the rehabilitation of the pretreatment stage in a water treatment plant for a village located in Bolivia which has 3500 inhabitants. The treatment plant was initially composed by horizontal-flow roughing filters and slow sand filters, but due to the high contents of colloidal turbidity of the providing source, it did not work properly. A plan of rehabilitation was made which comprised laboratory tests, pilot tests and proposal of modifications based on the results of previous stages. The laboratory tests were made in order to find the optimum conditions to coagulate the raw water. It was found that horizontal-flow roughing filters must be turned into up-flow roughing filters, so a pilot plant was built and was operated for three months in order to find suitable design parameters. The results obtained obtained during the operation of the pilot plant and the proposal of modifications are presented. The results of operation of the final plant, which are also reported, demonstrated the advantages of the up-flow roughing filtration as a pretreatment stage when it is necessary to add chemical products in small treatment plants.

Removal of natural organic matter at the Gunbower water treatment plant in northern Victoria, Australia

2015 ◽  
Vol 57 (20) ◽  
pp. 9061-9069
Author(s):  
Sanghyun Jeong ◽  
Tien Vinh Nguyen ◽  
Saravanamuthu Vigneswaran ◽  
Jaya Kandasamy ◽  
Dharma Dharmabalan
Keyword(s):  
Organic Matter ◽  
Water Treatment ◽  
Natural Organic Matter ◽  
Treatment Plant ◽  
Water Treatment Plant

scholarly journals Characteristics of water sludge from Cracow Water Treatment Plants – case study

2019 ◽  
Vol 100 ◽  
pp. 00019 ◽  
Author(s):  
Renata Gmurkowska
Keyword(s):  
Water Treatment ◽  
Organic Compounds ◽  
Dry Matter ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Dry Mass ◽  
Capillary Suction ◽  
Factors Affecting ◽  
Experimental Part ◽  
Water Treatment Plants

During water treatment a large amount of sludge is created – in the form of sewage and sediments. The largest amounts of sludge are produced during coagulation, ozonation and backwashing rapid filters. The quality and quantity of treated water, the type and dose of used coagulants are factors affecting the quantity, composition and properties of the sludge. Sludge produced during processing of drinking water is important problem and their quantity has been increasing. The study focuses on characteristics of water treatment sludge from four water treatment plants in Cracow. It includes theoretical and experimental part. The first part is based on analysis of literature and information obtained from MPWiK [3]. The second experimental part, concerns the analysis of dry matter, organic dry matter, capillary suction time and visual parameters: the color and consistency of the sludge. Result shows that every sludge contains organic matter. The highest concentrations of organic compounds and the largest diversity has been observed in the sludge collected in the Water Treatment Plant Raba, reaching even up to 70% of organic compounds in the dry mass of sludge.

Specific Fluorescent Fingerprint of Organic Matter in Advanced Water Treatment and its Molecular Weight

2013 ◽  
Vol 448-453 ◽  
pp. 317-321 ◽  
Author(s):  
Jing Wen Cao ◽  
Shao Wei Liao ◽  
Chung Yi Chung ◽  
Hwa Sheng Gau ◽  
Chun Yen Chiu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Matter ◽  
Water Treatment ◽  
High Performance ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Excitation Wavelength ◽  
Source Water ◽  
Fluorescent Intensity ◽  
Treated Water

In this research, the UV absorbance values of wavelength at 210 and 254 nm, excitation emission fluorescent matrix were measured for source water and treated water in CCL (Cheng Ching Lake) water treatment plant during five months. The whole data produced from EEFM was analyzed by PARAFAC operated in MATLAB software. The variation of molecular weight for organic matter was measured by HPLC (high performance liquid chromatography) with UV and fluorescent detectors. Observed from the variation of UV210/UV254, high value in treated water compared with source water was found. More molecular weight less than 5 k Da was formed in the treated water with relative to source water. Also, both major components in source water were located at wavelengths of excitation/emission of 250/410 nm and 230/330 nm and those in treated water were 240/410 nm and 220/290 nm. Also, the fluorescent intensity, long excitation wavelength was higher than short excitation wavelength in source water. This phenomena was opposite with treated water.

Analysis on the Natural Organic Matter and Disinfection By-Products in Full-scale Advanced Water Treatment Plant and Conventional Water Treatment Plant

2013 ◽  
Vol 51 (31-33) ◽  
pp. 6288-6298 ◽  
Author(s):  
Jei-cheol Jeon ◽  
Chang-Hyun Jo ◽  
Ilhwan Choi ◽  
Soon-Buhm Kwon[a] Ennkyung Jang ◽  
Tae-Mun Hwang
Keyword(s):  
Organic Matter ◽  
Water Treatment ◽  
Natural Organic Matter ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Full Scale ◽  
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