گزارش برگزاری کارگاه آموزشی «ارزیابی اثرات محیط‌زیستی پروژه‌های آب و فاضلاب با رویکرد چرخه حیات (acl)»

در این کارگاه که به همت انجمن آب و فاضلاب ایران برگزار گردید، ابتدا به معرفی چرخه حیات و کاربرد آن در ارزیابی اثرات محیط‌زیستی پرداخته شد. سپس در ادامه مثالی از کاربرد این روش در یک تصفیه‌خانه فاضلاب مورد بررسی قرار گرفت. بخش پایانی کارگاه نیز به پرسش و پاسخ شرکت‌کنندگان و مدرس دوره اختصاص یافت. در این نوشتار خلاصه‌ای از مباحث مطرح شده در این کارگاه ارائه می‌گردد.

Report on Workshop Environmental Impact Assessment of Water and Wastewater Projects with Life Cycle Approach (ACL)

One of the main problems in urban development is the increase of impenetrable levels, which leads to an increase in runoff and the occurrence of urban floods. In this study, the current situation of floods in the eighth district of Herat city was investigated using the EPASWMM mathematical model  in terms of flooding. Then, six different modes were modeled separately and simultaneously in the form of two methods: lowimpact development of rainwater storage barrels (in two different sizes) and biological biomass units. The results of this study showed that by using lowimpact development methods, the negative effects of floods with a return period of 10 years can be reduced by at least 40%. After that, simulation has been done using the flood mitigation reservoir method. The results showed that the construction of delayed reservoirs causes a delay in the peak discharge time and reduces the peak flood discharge. Also, the use of flood mitigation reservoir and unit biomass method and rain barrel method with larger diameter reduces flooding by 80% and the use of unit biomass method and the smaller diameter barrel method reduces the volume of urban floods by 75%.