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Journal of Advances in Environmental Health Research، جلد ۳، شماره ۴، صفحات ۲۴۲-۰
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عنوان انگلیسی Treatment of natural rubber industry wastewater through a combination of physicochemical and ozonation processes
چکیده انگلیسی مقاله In any type of rubber product manufacturing (including tires), the primary concerns are environmental. The aim of the present study was to survey a treatment combination of ozonation and physicochemical processes in the rubber industry. Wastewater samples were collected from the discharge unit of the rubber processing sewage system in Kerman Barez Tire Factory, Kerman, Iran. The wastewater samples used for chemical oxygen demand (COD), biochemical oxygen demand (BOD), total suspended solids (TSS), and oil and grease determinations were collected directly into bottles. After collection, samples were transferred to the laboratory for examination. The 2 methods of physicochemical process and ozonation process were used to treat wastewater. The study results suggest that the use of a chemical coagulation process with ferric chloride (FeCl 3 .7H 2 O) in the first stage of this study reduced COD by 37% of the original amount (0.56 g/l). The optimum dosage and pH range were 0.775 g/l and 6.5, respectively. When using Al 2 (SO 4 ) 3 , the COD reduction rate was 42%, and the optimum dosage and pH range were, respectively, 0.45 g/l and 6.5-7. After the ozonation process, COD was reduced by 70.75% and 90.6%. In accordance with these results and with respect to the high contamination load of this industry’s wastewater and its many environmental hazards, the complete treatment of this industry’s wastewater is crucial. One scientific and practical approach to wastewater treatment is the use of a combination of processes.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله مسعودی نژاد | mohamadreza massoudinejad
safety promotion amp;amp; injury prevention research center and department of environmental health engineering school of public health, shahid beheshti university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)

محسن مهدی پور رابری | mohsen mehdipour rabori
environmental health engineering research center and department of environmental health engineering, shahid beheshti university of medical sciences, tehran and kerman university of medical sciences, kerman, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)

محمد هادی دهقانی | mohammad hadi dehghani
department of environmental health engineering, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نشانی اینترنتی http://jaehr.muk.ac.ir/index.php/jaehr/article/view/274
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زبان مقاله منتشر شده en
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