نتایج جستجو برای: humic acid rejection

تعداد نتایج: 783239  

Journal: :آب و توسعه پایدار 0
مهدی وثوقی نیری امیرحسین محوی محمد جواد محمدی امیر حسین محوی محمود علی محمدی محمد شیرمردی ابوافضل نعیم آبادی

existence of acid humic in water resources is undesirable and causes carcinogenic component in disinfection process due to reaction with chlorine. due to their cost-effectiveness and higher physical resistance than activated carbon, natural zeloites are used for removing various pollutants. . in the present study, iranian natural zeolite modified with cetylpyridinium bromide (cpb) was investiga...

Journal: :مجله تحقیقات سلامت 0
محمد تقی قانعیان mohammad taghi ghaneian محمد حسن احرامپوش mohammad hassan ehrampoush محبوبه دهواری mahboobeh dehvari منیره خیرخواه monireh kheirkhah فاطمه انوری fatemeh anvari بهزاد جمشیدی behzad jamshidi

introduction: natural organic matters (noms) existing in water resources led to various problems such as formation of disinfectant by-products (dbps). humic matters like humic acid (ha) are component of noms that should be removed from water. advanced oxidation process (aops) is one of the noms removal methods. the aim of this study was to survey the degradation of humic acid by electron beam i...

Behzad Jamshidi, Fatemeh Anvari, Mahboobeh Dehvari, Mohammad Hassan Ehrampoush, Mohammad Taghi Ghaneian, Monireh Kheirkhah,

Introduction: Natural organic matters (NOMs) existing in water resources led to various problems such as formation of disinfectant by-products (DBPs). Humic matters like humic acid (HA) are component of NOMs that should be removed from water. Advanced oxidation process (AOPs) is one of the NOMs removal methods. The aim of this study was to survey the degradation of humic acid by electron beam i...

اسکویی, وحیده, دهقانی , محمد هادی , رضانسب, مجید, زاهدی, امیر, نظم آرا, شاهرخ , نیک فر, الهام,

Background and Objectives: Humic substances belong to a group of micro molecular of organic substance with different molecular weight produced by reaction of biological and geochemical process. They are known as one of the main prefabrications of disinfection byproducts. This study aimed at investigating the efficacy of (ZnO) nanoparticle under UV/ZnO radiation in removing humic acid. Materia...

Journal: :علوم باغبانی 0
سهیلا کمری شاهملکی غلامعلی پیوست جمالعلی الفتی

abstract beneficial effects of humic substances on plant growth have been recognized by many researchers. a greenhouse experiment was conducted with humic acid (0, 20 and 50 mg/l) on lettuce cultivars ‘lollorossa’ and ‘javelina’ using completely randomized design at university of guilan. results showed that humic acid affected (p<5%) leaf number, height and nutrient uptake as well as ca, p and ...

Journal: :علوم باغبانی ایران 0
مریم حقیقی استادیار دانشگاه صنعتی اصفهان محسن کافی دانشیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران تکتم سادات تقوی استادیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران عبدالکریم کاشی استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران غلامرضا ثواقبی دانشیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

humic acid as an organic substance can bound heavy metals. it is a best way of decreasing the hazardous effect of heavy metals on plants and thereby on humans. a factorial experiment was conducted in a completely randomized design of seven replications. the treatments consisted of three cadmium levels (0, 2 and 4 mgl-1), and three humic acid levels (0, 100, 1000 mgl-1) added to nutrient solutio...

To investigate the effects of chemical, organic and biological fertilizers application on the quantitative and qualitative characteristics of seedless barberry (Berberis vulgaris cv. Asperma) an experiment was conducted as split plot randomized complete block design with three replications in commercial garden in Qaen during 2016. Main-treatments comprised four application type of fertilizer (1...

To evaluate the effect of different concentrations of humic acid on guar (Cyamopsis tetragonoloba L.) yield and nutrient uptake in different sowing densities, an experiment was carried out by using a split plot design with three replications based on a randomized complete block design, in Agricultural Sciences and Natural Resources University of Khuzestan, Iran at summer 2016. Experimental fact...

ابراهیمی, زهرا, حجازی مهریزی, مجید, سرچشمه پور, مهدی,

Iron (Fe) and zinc (Zn) deficiency has been known as a key factor in limiting crop production in calcareous soils of arid and semi-arid regions. Since the components of organic matter can change Fe and Zn availability, this study was conducted to investigate the effects of humic treatments including humic acid (HA), fulvic acid (FA), vermicompost (Verm), HA+FA and HA+FA+Verm and mycorhiza inocu...

M. A. Arain M. Alagaany, M. Arif, M. E. Abd El-Hack M. Saeed S. S. Elnesr

Many studies tested different feed additives, among these additives, humic substances (HS) have been used in livestock and poultry diets. Humic substances commonly present in nature as they are created from the organic matter decomposition, and are normally found in the soil and natural water. Active components of HS consist of humic acid (HA), humus, ulmic acid, fulvic acid, humin and certain ...

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