نتایج جستجو برای: 15 and 3 g l
تعداد نتایج: 17286298 فیلتر نتایج به سال:
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
Introduction: The presence of antibiotics due to toxicity and sustainability as well as organic compounds as a combination of hard biodegradable wastewater is an undesirable issue in many industries. The aim of this study was to evaluate the efficiency of dissolved air flotation process for aniline and penicillin G removal from aqueous solutions. Methods: This was an empirical-lab study to w...
Paper mill effluent (PME) was used as an organic feedstock for production of biohydrogen via dark fermentation using heat-shock pretreated anaerobic sludge under mesophilic conditions. The influence of substrate concentration (5, 10 and 15 g-COD/L) and the initial pH (5 and 7) on the efficiency of dark hydrogen fermentation from PME were investigated. The highest hydrogen yield of 55.4 mL/g-COD...
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زمینه و اهداف: مالتیپل اسکلروزیس از دسته بیمار های خود ایمنی مزمن سیستم عصبی مرکزی با اتیولوژی ناشناخته است. در بیماری مالتیپل اسکلروزیس به دلایل نامشخصی سیستم ایمنی بر علیه برخی از اجزاء پروتئینی سلول های عصبی از جمله میلین تحریک شده و منجر به ضایعات بافتی می گردد. در بیماری مالتیپل اسکلروزیس (ms) میلین رشته های عصبی تخریب می شوند. از لحاظ بافت شناسی مشخصه ی برجسته ی مالتیپل اسکلروزیس (ms) ایج...
this paper investigates the removal of iron and zinc from aqueous solution with dairy wastewaterin three different biomasses such as lactobacillus delbrueckii ssp bulgaricus (lb-12), streptococcus thermophillus(stm-7) and a combination of both this bacteria culture (yc-380) and the optimization of removal efficiencyusing minitab program. a full 23 factorial design of experiments was applied to ...
C. Adler,11 Z. Ahammed,23 C. Allgower,12 J. Amonett,14 B. D. Anderson,14 M. Anderson,5 G. S. Averichev,9 J. Balewski,12 O. Barannikova,9,23 L. S. Barnby,14 J. Baudot,13 S. Bekele,20 V. V. Belaga,9 R. Bellwied,30 J. Berger,11 H. Bichsel,29 L. C. Bland,12 C. O. Blyth,3 B. E. Bonner,24 R. Bossingham,15 A. Boucham,26 A. Brandin,18 R. V. Cadman,1 H. Caines,20 M. Calderón de la Barca Sánchez,31 A. Ca...
background: high amount of heavy metals in sludge is one of the major obstacles to its use on farms. the present study aimed to investigate the possibility of leaching heavy metals from wastewater sludge by fenton method and determine the optimum level of parameters, such as iron, hydrogen peroxide, time, and ph for fenton reaction. methods: the effects of various parameters, such as ph (2-9)...
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