نتایج جستجو برای: sdbs
تعداد نتایج: 229 فیلتر نتایج به سال:
Polyaniline is a conductive polymer with distinctive optical and electrical properties. Its enzymatic synthesis is an environmentally friendly alternative to the use of harsh oxidants and extremely acidic conditions. 7D5L, a high-redox potential laccase developed in our lab, is the biocatalyst of choice for the synthesis of green polyaniline (emeraldine salt) due to its superior ability to oxid...
This paper describes studies of surface modification of a natural Chilean zeolite with cetyl trimethylammonium bromide (CTAB), to investigate the adsorption efficiency for the removal from aqueous solution of an anionic surfactant, sodium dodecyl benzene sulfonate (SDBS), at bench scale. Modification of the zeolite with CTAB (named ZMS) was based on the external cation exchange capacity (ECEC) ...
Abstract Coking coal dust is extremely hydrophobic; therefore, combination with droplets in the air difficult and suppression challenging. Here, a suppressant spray for coking was studied order to improve of dust. Based on monomer optimization compounding analysis, two surfactant monomers, fatty alcohol ether sodium sulfate (AES) dodecyl benzene sulfonate (SDBS) were selected as components supp...
راکتور بیوفیلمی با بستر متحرک (mbbr) درمورد تصفیه سورفکتانت ها کمتر مورد توجه بوده است. باتوجه به مزیت ها و کارایی مناسب این سیستم در تصفیه فاضلاب های صنعتی ، در این تحقیق از سه راکتور 5 لیتری جهت بررسی و مطالعه راندمان حذف سدیم دودسیل بنزن سولفونات (sdbs) ، سدیم دودسیل سولفات(sds) و ستیل تری متیل آمونیوم برماید(ctab) در زمان های ماند متفاوت استفاده شد . طبق نتایج، بهترین راندمان در شرایط بارده...
SUMMARY Knowledge discovery in databases (KDD) is an important task in spatial databases since both, the number and the size of such databases are rapidly growing. The automated discovery of knowledge in databases is becoming increasingly important as the world's wealth of data continues to grow exponentially. The main contribution of this paper is to introduce a set of basic operations, which ...
The goal of this study was to determine if impairments detected by the test of variables of attention (TOVA) may be used to predict early attention complaints and memory impairments accurately in a clinical setting. We performed a statistical analysis of outcomes in a patient population screened for attention deficit hyperactivity disorder or attention complaints, processing errors as measured ...
Carbon nanotubes (CNTs) are attractive because of their excellent chemical durability mechanical strength and electrical properties. Therefore there is interest in CNTs for not only electrical and mechanical application, but also biological and medical application. In this study, the dispersion power of surfactant-treated multiwalled carbon nanotubes (MWCNTs) and their effect on the antibacteri...
Abstract Applications of precise point positioning (PPP) are limited by PPP’s long convergence time. One effective way to shorten the time is apply ionospheric constraints because external information. The conventional do this high precision but biased corrections. limitations method that all must be derived from same set reference stations have data. An approach based on single differ...
زمینه و هدف: امروزه آلودگی‌های ناشی از فاضلاب‌های حاوی سورفاکتانتها یکی از عوامل عمده و شایع آلودگی‌های محیط زیستی به‌شمار می‌روند. سدیم دودسیل بنزن سولفونات (SDBS)، از مهمترین و عمدهترین انواع سورفاکتانتها محسوب میشود. هدف از این مطالعه سنتز کربن فعال میان‌حفره از مخروط درخت کاج ایرانی (Pinus eldarica) با استفاده از فعّالسازی شیمیایی به‌منظور حذف سورفاکتانت سدیم دودسیلبنزن سولفونات (SDB...
A large proportion of extant crude oil is found in carbonate reservoirs worldwide. Alkylbenzene sulfonates are inexpensive anionic surfactants but they cannot be used these due to their incompatibility with divalent ions and high adsorption on the rocks. This paper proposes solution that problem by blending this kind surfactant surface-active ionic liquids. Namely, a formulation containing sodi...
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