13309

12133

كارشناسي ارشد

علوم و مهندسي آب

اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي

۱۳۹۶

پانزده، ۱۰۸ص.:‌ مصور، جدول، نمودار

جهانگير عابدي كوپائي

حسين سقائيان‌نژاد

محمد شايان‌نژاد، محسن سليماني

1396/12/08

كتابنامه

كشاورزي

مهندسي كشاورزي

ID12133

9 2 تغييرات كليفرم كل و كليفرم مدفوعي پساب 71 9 9 تغييرات اكسيژن خواهي شيميايي COD پساب 97 9 4 تغييرات اكسيژن خواهي بيوشيميايي BOD پساب 47 9 5 تغييرات نيترات پساب 17 9 1 تغييرات آمونيوم پساب 17 9 7 تغييرات كل جامدات TS پساب 28 9 8 تغييرات كل مواد جامد محلول TDS پساب 48 9 1 تغييرات فسفات پساب 78 فصل چهارم نتيجهگيري و پيشنهادها 4 9 نتايج پژوهش 11 4 2 پيشنهادها 21 پيوستها 41 4 منابع 81 4 چكيده انگليسي 999 4 ازده

999 Improvement of Urban Wastewater Quality Using Vetiver in Constructed Wetland System Vahid Arab Nasrabadi v arabnasrabadi@ag iut ac ir January 9 2018 Department of Water Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Jahangir Abedi Koupai koupai@cc iut ac ir Abstract Iran is a country with a rainfall of less than one third of the global average rainfall Based on all indicators of the water crisis Iran is in critical condition or on the threshold of a water crisis In order to manage the crisis in addition to managing water consumption it was also necessary to seek new water resources In these conditions the production of sewage is relatively stable and not affected by drought conditions Sewage disposal or reuse is required to be treated But current filtration systems are very expensive to reduce the burden of microbial contamination and are not applicable in small communities and industries Natural purification methods are one of the solutions to this problem One of the most common natural purification methods is constructed wetlands In this research the performance of hybrid constructed wetland with pumice and vetiver on urban wastewater has been investigated The combination of Pumice as a porous material with the ability to absorb the elements as well as vetiver plant as a plant capable of phytoremediation has a significant performance In this study ponds were constructed with 0 75 m width 0 5 m depth and 6 m length and were designed in the vicinity of wastewater treatment lagoon of Isfahan University of Technology In order to evaluate the performance of constructed wetland the effects of three and six days retention time HRT were studied using a Randomised complete design On average during the three days of retention time the total coliform fecal coliform COD BOD5 nitrate ammonium TS TDS and phosphate were 98 99 99 08 42 69 26 92 20 83 35 11 11 31 9 05 and 5 42 percent decreased respectively Also the average duration of six days retention time the total coliform Fecal coliform COD BOD5 nitrate ammonium TS TDS and phosphate were 99 75 99 79 88 89 37 36 60 78 70 53 13 18 11 39 and 12 51 percent decreased respectively In total the constructed wetland with the mentioned characteristics was successful in remove total coliform fecal coliform COD BOD5 and ammonium and it was acceptable to remove other parameters Keywords Hybrid constructed wetland Vetiver Pumice Wastewater

جهانگير عابدي كوپائي

حسين سقائيان‌نژاد

محمد شايان‌نژاد، محسن سليماني