کارایی فرایند ازن زنی و انعقاد شیمیایی به وسیله کلرورفریک و سولفات آلومینیوم در کاهش COD فاضلاب صنعت لاستیک سازی

نوع مقاله: Research Paper

نویسندگان

1 کارشناس ارشد مهندسی بهداشت محیط، دانشکده بهداشت دانشگاه علوم پزشکی تهران، تهران، ایران.

2 استاد گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران.

3 استاد گروه مهندسی بهداشت محیط، دانشکده بهداشت دانشگاه علوم پزشکی تهران، تهران، ایران

4 استادیار گروه مهندسی بهداشت محیط، دانشکده بهداشت دانشگاه علوم پزشکی تهران، تهران، ایران

چکیده

زمینه و هدف: یکی از صنایع تولیدکننده آلاینده های زیست محیطی، صنعت تولید لاستیک خودروهاست که مخاطرات زیست محیطی فراوانی به همراه دارد. این مطالعه با هدف اساسی بررسی کارایی فرایندهای ازناسیون و انعقاد شیمیایی در کاهش COD فاضلاب صنعت لاستیک سازی انجام شد.
مواد و رو شها: در این مطالعه، کارخانه لاستیک سازی با حجم فاضلاب صنعتی بالغ بر 2500 مترمکعب در ماه بررسی شد. به منظور ارزیابی کیفی فاضلاب این صنعت و روند کاهش بار آلودگی آن، مقدار COD به عنوان معیار کیفی در نظر گرفته شد.
یافته ها: در این مطالعه، میزان کاهش COD پساب ناشی از تصفیه شیمیایی با ماده کلرورفریک پس از ازن زنی 34 درصد و پساب تصفیه شیمیایی با ماده سولفات آلومینیوم پس از ازن زنی 48 درصد، کاهش میزان COD را نشان می دهد.
نتیجه گیری: یکی از راهکارهای علمی و عملی برای تصفیه این صنعت، استفاده از فرایندهای تلفیقی نظیر انعقاد شیمیایی و ازناسیون به همراه فرایندهای بیولوژیکی است.

کلیدواژه‌ها


عنوان مقاله [English]

Efficiency of Ozonation and Chemical Coagulation Using Aluminum Sulfate and Ferric Chloride for Reduction of COD from Wastewater of Rubber Industry

نویسندگان [English]

  • Mohsen Mehdipoor 1
  • Mohammad Hadi Dehghani 2
  • Simin Nasseri 2
  • Kazem Nadafi 3
  • Amir Hossein Mahvi 4
1 Tehran University of Medical Sciences, School of Public Health, Department of Environmental Health Engineering, Tehran, I.R.Iran.
2 Professor, Tehran University of Medical Sciences, School of Public Health, Department of Environmental Health Engineering, Tehran, I.R.Iran.
3 Professor, Tehran University of Medical Sciences, School of Public Health, Department of Environmental Health Engineering, Tehran, I.R.Iran.
4 Assistant Professor, Tehran University of Medical Sciences, School of Public Health, Department of Environmental Health Engineering, Tehran, I.R.Iran.
چکیده [English]

Background and objective: One of the industries producing environmental pollutant is the rubber industry, which has a lot of in environmental dangers. This study was conducted in the purpose of investigation on Ozone and coagulant material’s (Aluminum sulfate –Ferric chloride) efficiency in waste water treatment
of Rubber Industry.

Materials and Method: In this work Rubber industries with the industrial waste volume over 2500 m3 per mount was studied. In order to qualitative evaluation of wastewater in this industry, the reduction of turbidity and the amount of COD were considered as the qualitative criteria.

Results: In this study, the reduction rate of COD by chemical treatment with Ferric chloride after ozonation was 34 percent and the wastewater of chemical treatment with aluminum sulfate after ozonation shown 48 percent, the reduction of COD.

Conclusion: One of the scientific and practical approaches for the treatment of wastewater in these industries is the use of complex process like chemical coagulation and ozonation along with possible biological processes.

Paper type: Research article

کلیدواژه‌ها [English]

  • Rubber industry
  • Chemical coagulation
  • COD
  • Ozonation
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