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:: دوره 2، شماره 3 - ( 6-1394 ) ::
جلد 2 شماره 3 صفحات 129-134 برگشت به فهرست نسخه ها
Feasibility of electrochemical oxidation process for treatment of saline wastewater
چکیده:   (8517 مشاهده)

Background: High concentration of salt makes biological treatment impossible due to bacterial plasmolysis. The present research studies the process of electrochemical oxidation efficiency and optimal levels as important factors affecting pH, salt concentration, reaction time and applied voltage. Methods: The sample included graphite electrodes with specifications of 2.5 cm diameter and 15 cm height using a reactor with an optimum capacity of 1 L. Sixty samples were obtained with the aid of the experiments carried out in triplicates for each factor at 5 different levels. The entire experiments were performed based on standard methods for water and waste water treatments. Results: Analysis of variance carried out on effect of pH, salt concentration, reaction time and flow intensity in elimination of chemical oxygen demand (COD) showed that they are significant factors affecting this process and reduce COD with a coefficient interval of 95% and test power of 80%. Scheffe test showed that at optimal level, a reaction time of 1 hour, 10 g/L concentration, pH = 9 and 15 V electrical potential difference were obtained. Conclusion: Waste waters containing salt may contribute to the electro-oxidation process due to its cations and anions. Therefore, the process of electrochemical oxidation with graphite electrodes could be a proper strategy for the treatment of saline wastewater where biological treatment is not possible.

متن کامل [PDF 400 kb]   (1995 دریافت)    
نوع مطالعه: مقاله اصیل | موضوع مقاله: عمومى
دریافت: 1394/6/31 | پذیرش: 1394/6/31 | انتشار: 1394/6/31
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Dindarloo K, Jamali H A, Lakbala P, Mahmodi H, Kazemi F. Feasibility of electrochemical oxidation process for treatment of saline wastewater. Environ. health eng. manag.. 2015; 2 (3) :129-134
URL: http://ehemj.com/article-1-88-fa.html

Feasibility of electrochemical oxidation process for treatment of saline wastewater. مجله مدیریت و مهندسی بهداشت محیط. 1394; 2 (3) :129-134

URL: http://ehemj.com/article-1-88-fa.html



دوره 2، شماره 3 - ( 6-1394 ) برگشت به فهرست نسخه ها
مجله مدیریت و مهندسی بهداشت محیط Environmental Health Engineering And Management Journal
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