نتایج جستجو برای: zeolite p

تعداد نتایج: 1278134  

2008
X. Karamanlis P. Fortomaris G. Arsenos I. Dosis D. Papaioannou C. Batzios A. Kamarianos

The objective of this study was to assess the effect of clinoptilolite (a natural zeolite) on growth and performance of broilers as well as on the quality of their litter. A total of 5,200 one-day old broiler chickens (Cobb 500) were used in two consecutive rounds lasting 42 days each. The broilers were given free and continuous access to a nutritionally non-limiting diet (in meal form) that wa...

Journal: :علوم دامی 0
محمد حامد صفری دانش آموخته کارشناسی ارشد، گروه تغذیه دام و طیور، دانشگاه علوم کشاورزی و منابع طبیعی گرگان محمود شمس شرق دانشیار گروه تغذیه دام و طیور، دانشگاه علوم کشاورزی و منابع طبیعی گرگان آرش امینی استادیار گروه زمین شناسی، دانشگاه گلستان احمد طاطار استادیار گروه علوم دامی، دانشگاه کشاورزی و منابع طبیعی رامین خوزستان

an experiment with 300 one-day old ross male broiler chicks was conducted to determine the effects of glauconite and zeolite on the broiler's performance, tibia bone and blood characteristics. five experimental treatments [control, glauconite (2 & 4 percent), and zeolite (2 & 4 percent)] were used in a completely randomized design with 4 replicates. during the experiment weight gain, feed ...

2012
Alireza Nezamzadeh-Ejhieh Mahshid Khorsandi

A comparison of the photoefficiency of Ni(II) and NiS incorporated into zeolite P towards photodecolorization of Eriochrome Black T dye solution was investigated in a photocatalytic reactor using UV lamp as a light source. The effect of various experimental variables on the decolorization performance of the process was evaluated by examining catalyst dosage, temperature, initial dye concentrati...

2016
Jing Shi Naiming Zhang Chenguang Zhang Boxian Wei

The activation of soil-fixed phosphorus is a long-term concern in soil science. In order to enhance the activation effect to soil-fixed phosphorus in red soil, different modified zeolite, through physical, chemical method and the associated both physics and chemistry, was used in this paper. The results showed as following: 1) the activated ability to soil-fixed phosphorus in red soil for modif...

2018
Joris Goetze Irina Yarulina Jorge Gascon Freek Kapteijn Bert M. Weckhuysen

In small-pore zeolite catalysts, where the size of the pores is limited by eight-ring windows, aromatic hydrocarbon pool molecules that are formed inside the zeolite during the Methanol-to-Olefins (MTO) process cannot exit the pores and are retained inside the catalyst. Hydrocarbon species whose size is comparable to the size of the zeolite cage can cause the zeolite lattice to expand during th...

Journal: :Journal of animal science 2014
J R Flohr M D Tokach S S Dritz J M DeRouchey R D Goodband J L Nelssen

Two experiments were conducted to investigate the effects of sodium sulfate water and the efficacy of nonnutritive feed additives in nursery pig diets. In Exp. 1, 320 barrows (5.4 ± 0.1 kg BW and 21 d of age) were allotted to 1 of 8 treatments for 24 d in a 2 × 4 factorial with 2 levels of sodium sulfate water (control or 3,000 mg sodium sulfate/L added), and 4 dietary zeolite (clinoptilolite) ...

2006
A. Ansari Mahabadi M. A. Hajabbasi H. Khademi H. Kazemian

In recent years, natural substances such as zeolite have been used to absorb heavy metals in soil in an attempt to decrease their availability to plants. Compared to other techniques, the use of zeolite is fast, clean, and inexpensive. This research was carried out to investigate the effects of an Iranian natural zeolite (clinoptilolite) on stabilizing Cd-contaminated soil treated with 0.01 M C...

2001
Jumras Limtrakul Somkiat Nokbin Parawan Chuichay Pipat Khongpracha Siriporn Jungsuttiwong Thanh N. Truong

Quantum cluster and embedded cluster approaches were used to investigate the proton transfer reaction for a series of model clusters of zeolite/(H2O)n ; n = 1, 2, 3, and 4, using the B3LYP/6-31G (d,p) level of theory. For both calculations, without promoted water, the hydrogen-bonded dimer of the zeolite/water system exists as a simple hydrogen-bonded complex, ZOH(H2O)2, and no proton transfer ...

Journal: :health scope 0
ahmad nikpey department of occupational health, qazvin university of medical sciences, ir iran +98-09126820763, [email protected]; department of occupational health, qazvin university of medical sciences, ir iran +98-09126820763, [email protected] hossein kazemian department of chemical and biochemical engineering, faculty of engineering, western university (uwo), london, ontario, canada ali safari-varyani department of occupational health, qazvin university of medical sciences, ir iran +98-09126820763, [email protected] marjan rezaie department of occupational health, tehran university of medical sciences, ir iran majid sirati-sabet department of biochemistry and genetic, qazvin university of medical sciences, ir iran

background lead poisoning impairs memory and learning. objectives the protective effect of natural zeolite clinoptilolite on memory and learning impairment in rats exposed to lead acetate was investigated. materials and methods 60 male wistar rats in six groups treated for 2 months with diets contained different ratios of natural zeolite(i.e. 5% or 12.5%), and %0.2 lead acetate (la) concentrati...

2011
James Anthony Ippolito David D. Tarkalson Gary A. Lehrsch

Adoption of new management techniques that improve soil water storage and soil N plant availability yet limit N leaching may help improve environmental quality. A benchtop study was conducted to determine the influence of a single urea fertilizer rate (224 kg N ha) applied with band or fully mixed zeolite (clinoptilolite) application rates (up to 90 Mg ha) on NH4-N and NO3-N concentrations in a...

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