نتایج جستجو برای: اکسیژن خواهی زیستشیمیایی bod
تعداد نتایج: 11434 فیلتر نتایج به سال:
برای تعیین مبانی طراحی تصفیه خانه های فاضلاب در شهر تهران تصفیه خانه فاضلاب صاحبقرانیه که در شمال شهر قرار دارد به عنوان پایلوت انتخاب و مشخصات کمی و کیفی فاضلاب ورودی به آن در یک دوره یکساله مورد بررسی قرار گرفته است همچنین به منظور تعیین مقادیر سرانه دبی فاضلاب و آلاینده های آن جمعیت تحت پوشش این تصفیه خانه در دو نوبت (ابتدا و انتهای دوره تحقیق) سرشماری شده است بر اساس این سر شماری ها میانگین...
Bimbo – Ricolino candy manufacturing plant in Mexico City was discharging wastewater with high amount of fats oil and grease and dissolved sugars. Local regulatory agency requested that suspended solids, oil and grease and dissolved BOD be almost completely removed prior to discharge to municipal plant. The available real estate in Mexico City was very limited. A multistep treatment system was ...
Organic pollution of rivers by wastewater discharge from human activities negatively impacts people and ecosystems. Without treatment, pollution control relies on a combination of natural degradation and dilution by natural runoff to reduce downstream effects. We quantify here for the first time the global sanitation crisis through its impact on organic river pollution from the threats of (1) i...
Since the demand for more bandwidth, agile infrastructures and services grows, it becomes challenging for Service Providers like GÉANT to manage the proprietary underlay, while keeping costs low. In such a scenario, Software Defined Networking (SDN), open hardware and open source software prove to be key components to address those challenges. After one year of development, SDX-L2 and BoD, the ...
The demand for efficient, scalable and cost effective mobile information access systems is rapidly growing. Radio frequency broadcast plays a major role in mobile computing, and there is a need to provide service models for broadcasting information according to mobile users’ needs. In this paper we present a model called Broadcast on Demand (BoD), which provides timely broadcasts according to r...
سابقه و هدف: اثرات سوء ناشی از دفع نامناسب فاضلاب در محیط، جمع آوری فاضلاب و تصفیه آن را امری ضروری و اجتناب ناپذیر کرده است. به گونه ای که علاوه بر احداث تصفیه خانه فاضلاب، برای رسیدن به استانداردهای زیست محیطی مطلوب، لزوم ارزیابی عملکرد مداوم سیستم های تصفیه مطرح می باشد. با توجه به اینکه پل ارتباطی بین نتایج آزمایشگاهی و کاربردهای صنعتی در تصفیه فاضلاب، تعیین ضرایب بیوسنتیک است. این مطالعه ب...
In this paper, we consider the mathematical formulation and analysis of an optimal control problem for a nonlinear Dissolve Oxygen(DO)/ Biological Oxygen Demand(BOD) system with logistic growth term. In the BOD/DO system studied by Bermúdez [2] this logistic growth term is not included. We study the existence and uniqueness of solution for the nonlinear system as well as the existence and uniqu...
We investigated physical, chemical, and biological variables contributing to biochemical oxygen demand (BOD) in 17 North Carolina lotic and lentic water bodies affected by mild to severe hypoxia. Phytoplankton production created the dominant reservoir of labile carbon driving BOD, and subsequent hypoxia, in a Piedmont river subject to algal blooms, three urban streams, a set of anthropogenicall...
Effects of acute and 2-hour postphysical activity on the estimation of body fat made by the bod pod.
The Bod Pod has been found to be reliable/valid against several criterion methods, including hydrostatic weighing and dual-energy x-ray absorptiometry, and under different conditions, such as clothing, dehydrated states, and body temperature changes. However, questions remain regarding the effects of an acute bout of exercise. Therefore, the purpose was to determine the effects of an acute bout...
A physicochemical study for the treatment of pharmaceutical wastewater was performed. Objective of the laboratory investigation was to study the removal of color, Total Dissolved Solids (TDS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), turbidity and phenol and bring them up to the allowable limits for reuse purposes. Efficiency of coagulation, flocculation, sedimentation, sa...
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