حذف زیستی هیدروژن سولفید در راکتور ایرلیفت بیوفیلمی سوسپانسیونی

نوع مقاله: علمی-پژوهشی

نویسندگان

تبریز، دانشگاه صنعتی سهند، پژوهشکده مهندسی محیط زیست ـ آب و توسعه پایدار، صندوق پستی 1996 ـ 51335

چکیده

در این پژوهش حذف زیستی هیدروژن سولفید به ‌وسیله باکتری تیوباسیلوس تیوپاروس در راکتور ایرلیفت بیوفیلمی سوسپانسیونی انجام شد. از سدیم سولفید حل شده در خوراک مایع به عنوان سوبسترا استفاده شد. راه ‌اندازی راکتور در دمای ثابت oC30 و در pH حدود 7 با ذره ‌های حامل بازالت انجام گرفت. در محیط کشت معدنی بیشترین نرخ اکسیداسیون سولفید به حدود .h3/m2-molS 7/6 در زمان ماند h 3/3 رسید. به خاطر اینکه در نرخ بارهای بالا، سولفید در داخل راکتور تجمع می‌ یافت، شرایط حالت یکنواخت در نرخ بارهای بالای سولفید ایجاد نشد. بهترین دمای انجام در نرخ بار سولفید .h3/m2-molS 8/4 در شرایط 100% تبدیل به ‌دست آمد.

کلیدواژه‌ها

موضوعات


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