پایان نامه تخریب زیستی اتیل مرکاپتان با استفاده از سیستم میکروبی تثبیت یافته

فهرست:

فصل اول- مروری بر موضوع                                                                                                                  

1- مقدمه                                                                                            1

2- ترکیبات سولفوره فرار                                                                                      1

3- نشر ترکیبات سولفوره فرار                                                                                 1           

3-1- منابع طبیعی                                                                                             2 3-2- منابع مربوط به فعالیتهای انسانی                                                                              3

3-2-1- فرآیندهای بی هوازی                                                                              3

3-2-2- فرآیندهای با دمای بالا                                               4                              3-2-3- مصارف صنعتی                                                                                     4

3-2-4- فرآیندهای شیمیایی                                                                                 4

4- ویژگیهای ترکیبات سولفوره فرار                                                                   5                       4-1- آستانه بوزایی                                                                       5                   4-2- سمیت                                                                                                   6

4-2-1- سمیت برای انسان                                                                                     6

4-2-2- سمیت برای میکروارگانیسمها                                                                    7

4-3- اثر خورندگی                                                                                           7

5- اتیل مرکاپتان و ویژگیهای آن                                                                                      8

6- روشهای تخریب ترکیبات سولفوره فرار                                                                 10

6-1- روشهای فیزیکی شیمیایی                                                                            10

6-1-1- اکسیداسیون حرارتی                                                                                  10               6-1-2- احتراق کاتالیستی                                                                                        12

6-1-3- اسکرابینگ                                                                                                 14

6-1-4- جذب روی سطح جامد                                                                             15

6-2- روشهای بیولوژیک                                                                                      17                                  6-2-1- بیواسکرابینگ                                                                                        17

6-2-2- بیوفیلتراسیون بستر چکنده                                                                         18

6-2-3- بیوفیلتراسیون                                                                                        21

7- اصطلاحات مربوط به بیوفیلترها                                                                       24

7-1- زمان اقامت بستر خالی و زمان اقامت واقعی                                                     24

7-2- بار جرمی ورودی                                                                                    24

7-3- بازدهی حذف و ظرفیت حذف                                                                    25

8- پارامترهای مؤثر بر کارکرد بیوفیلترها                                                                 25

8-1- بستر بیوفیلتر                                                                                                 25

8-2- میزان رطوبت                                                                                         28

8-3- تخلخل                                                                                                 28

8-4- افت فشار                                                                                              29

8-5- سطح مخصوص بستر                                                                                                       29

8-6- pH                                                                                                                                      30

8-7- دبی جریان                                                                                            31

8-8- غلظت آلاینده                                                                                         31

8-9- رطوبت فاز گاز                                                                                       32

8-10- فاز مایع                                                                                              32

8-11- دما                                                                                                    33

8-12- میکروارگانیسمها                                                                                   33

9- سیستم آنزیمی قارچ ریسه سفید فانروکائت کرایسوسپوریوم                                     36

9-1- آنزیمهای لیگنینولیتیک                                                                               36

9-2- کینتیک اکسیداسیون آلاینده های زیست محیطی توسط آنزیمهای لیگنینولیتیک            37

9-2-1- چرخه کاتالیتیک پراکسیدازها                                                                   37

9-2-2- واکنشهای منگنز پراکسیداز                                                                      38

9-2-3- واکنشهای لیگنین پراکسیداز                                                                     39

9-3- سیتوکروم پی 450                                                                                  42    

9-3-1- ساختار و مکانیزم واکنش                                                                                               42

10- تحقیقات انجام گرفته در ایران                                                                                                 44

فصل دوم- اهداف، نوآوریها و جزئیات تفصیلی کار

1- اهداف و مراحل انجام پروژه                                                                            47

2- نوآوریهای پروژه                                                                                         52

3- برنامه زمان بندی پروژه                                                                                 53

مراجع

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