ELECTROCHEMICAL DEGRADATION OF TEXTILE EFFLUENT USING NOVEL OZONE GENERATING SN-SB-NI ANODES
Published In: 4TH INTERNATIONAL CONFERENCE ON ADVANCES IN BIO-INFORMATICS AND ENVIRONMENTAL ENGINEERING
Author(s): OZGE SIVRIOGLU , TANER YONAR
Abstract: The application of Sn-Sb-Ni electrodes for the treatment of waste streams is promising for ozone production by electrolysis of water because of their stability and over potential for the oxygen evolution reaction. These series of anodes have high electrochemical ozone generation potential at ambient conditions (apprioximately 40% current efficiency). But the usinng and testing of these novel anodes for real wastewater are too limited in literature. Titanium mesh substrate coated with Sn-Sb-Ni alloy was used as anode immersed in wastewater at room temperature with platinised titanium cathode. Five operational parameter ssuch as: initial dye concentration, pH, COD, applied voltage/current and the contact time were evaluated for the ozonation process. Experimental findings revealed that after 30 min the degradation efficiency of dye and COD could reach upto 99% and 98% respectively at pH 3 and temperature of 25°C as the optimum conditions.
- Publication Date: 19-Aug-2016
- DOI: 10.15224/978-1-63248-100-9-24
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THE IMPACT OF ALUM ON THE BULKING OF A FULL SCALE ACTIVATED SLUDGE PLANT
Published In: 4TH INTERNATIONAL CONFERENCE ON ADVANCES IN BIO-INFORMATICS AND ENVIRONMENTAL ENGINEERING
Author(s): AUGUSTINE O. IFELEBUEGU , PETER OJO
Abstract: The activated sludge plant (ASP) is one of the main wastewater treatment processes in the UK. With the increasing stringent requirement for effluent quality, there has been a considerable increase in the use of chemicals for phosphorus precipitation in ASPs to achieve effluent consents. Alum is one of the most widely used chemicals in the treatment of wastewater. In this study, we examine the impact of varying concentrations of alum on the bulking and settleability of a full-scale activated sludge plant with simultaneous co-precipitation. The results showed an improvement in the settleability of the activated sludge with the initial stirred sludge volume index (SSVI) before alum dosing dropping from 105 to 85 after one sludge age. The SSVI increased to 155 with the settleability and floc compactability deteriorating at a dose rate of 145mg/L of alum. The bulking of the sludge was
- Publication Date: 19-Aug-2016
- DOI: 10.15224/978-1-63248-100-9-57
- Views: 0
- Downloads: 0