Determination of thmfp of the reservoirs in Turkey : kinetics aspect

Download

index.pdf

Date

2004

Author

Artuğ, Mine

Metadata

Show full item record

Item Usage Stats

208
views

88
downloads

Chlorine is still the most commonly used disinfectant in many water treatment plants all over the World. However, studies conducted demonstrated that the chlorine reacts with the natural organic matter (NOM) in source waters, and leads to the formation of a variety of chlorinated organic compounds, disinfection by-products (DBPs). Among these, the most common are the trihalomethanes (THMs). In this study, kinetics of the THM formation was investigated. Kinetic experiments were carried out with the raw waters from Devegeıdi and Atatürk Reservoirs as well as with water containing a model compound, humic acid. THM and Chlorine concentrations were measured for 6 weeks on a seasonal basis. The simulation model developed by USEPA was used for predicting THM concentrations. The results of this study have shown that THM formation increases with increasing time and higher chlorine doses result in higher THM formation. Also, higher organic matter concentrations resulted in higher chlorine demands and both these parameters increased the TTHM concentrations. But, on the contrary to the standard THMFP testing, THM formation did not complete in seven days. In addition, THM formation and chlorine consumption were very rapid during the first 24 hr followed by a more gradual formation and decay after 24 hr. THM formation rates ranged between 35-66 æg/L.day for Atatürk Reservoir, between 80-167 æg/L.day for Devegeıdi Reservoir and between 85-248 æg/L.day for humic acid during the first 24 hr, and ranged between 2-6 æg/L.day for Atatürk Reservoir, between 7-16 æg/L.day for Devegeıdi Reservoir and between 3-14 æg/L.day for humic acid after 24 hr.

Subject Keywords

Water Pollution.

URI

http://etd.lib.metu.edu.tr/upload/12605587/index.pdf
https://hdl.handle.net/11511/14645

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Qualitative evaluations about the disinfection capabilities of a water distribution network : a model study Nadiroğlu, Coşkun; Köken, Mete; Aydın, İsmail; Department of Civil Engineering (2014) “Chlorine” is one of the major disinfectants extensively used in distribution systems that neutralizes the disease-causing organisms. This model study evaluates the disinfection capabilities of a specific water distribution network N8.3 of Ankara water distribution system under various operating conditions. N8.3 supplies water, roughly to 40,000 people. The network is served by a pump station and pumping schedule is critical concerning the occurrence of minimum chlorine concentrations. Continuous “blind” pu...
A chemical substitution study for a wet processing textile mill in Turkey Öztürk, Ertan; Demirer, Göksel Niyazi; Department of Environmental Engineering (2007) The main environmental concern in the textile industry is about the amount of water discharged and the chemical load it carries. The total quantity of chemicals used in textile mills varies from 10% to over 100% of the weight of the cloth produced. Many chemicals currently used in the textile industry affect the amount and the type of waste produced and their influence the aquatic life of the receiving stream. One of the critical steps in pollution prevention studies is auditing the use of chemicals and mak...
Fate and removal of pesticides in wastewater treatment plants –case of Yeşilirmak basin Kocaman, Kumru; Dilek, Filiz Bengü; Yetiş, Ülkü; Department of Environmental Engineering (2019) The effluent of wastewater treatment plants (WWTP) had been shown to be a significant source of micropollutants in surface waters. In this study, the aim was to investigate the biological treatment of commonly found micropollutants in Yeşilırmak river basin, with special emphasis on the effects of operational conditions on their removal in conventional biological WWTPs. Based on the monitoring results of TÜBİTAK project (115Y013) “Management of Point and Diffuse Pollutant Sources in Yeşilırmak River Basin” ...
Use of clinoptilolite for copper and nickel removel from aqueous solutions Çağın, Volkan; İmamoğlu, İpek; Department of Environmental Engineering (2006) Heavy metals are well known toxic priority pollutants. Hence, wastewaters containing these species must be treated prior to discharge into receiving bodies. In this study, the potential of Bigadiç clinoptilolite for Cu2+ and Ni2+ removal from wastewaters was investigated in batch and continuous reactors. Results of the preliminary experiments revealed the optimum operating conditions, namely, initial solution pH of 5 and 4 for Cu2+ and Ni2+, respectively and contact time of 48 hours. Additionally, condition...
The effects of aquifer heterogeneity on the natural attenuation rates of chlorinated solvents Önkal, Başak; Ünlü, Kahraman; Department of Environmental Engineering (2005) Monitored natural attenuation has been particularly used at sites where petroleum hydrocarbons and chlorinated solvents have contaminated soil and groundwater. One of the important aspects of the methodology that has been recognized recently is that the mass removal rates, the most important parameter to determine effectiveness of the methodology, is controlled by the groundwater flow regime and the aquifer heterogeneity. Considering this recognition, the primary objective of this study is to quantitatively...

Citation Formats

M. Artuğ, “Determination of thmfp of the reservoirs in Turkey : kinetics aspect ,” M.S. - Master of Science, Middle East Technical University, 2004.