نتایج جستجو برای: degradation efficiency
تعداد نتایج: 531111 فیلتر نتایج به سال:
Background and Objectives: Water and wastewater resources contamination, caused by the wastewater discharged from industries, is considered a major threat to human and environment health. Catechol is one of the usual phenolic compounds in wastewater of various industries such as oil and petrochemicals, plastics, resins, and etc, which is highly toxic and resistant to degradation. Therefore, the...
Celiac disease is triggered by partially digested gluten proteins. Enzyme therapies that complete protein digestion in vivo could support a gluten-free diet, but the barrier to completeness is high. Current options require enzyme amounts on the same order as the protein meal itself. In this study, we evaluated proteolytic components of the carnivorous pitcher plant (Nepenthes spp.) for use in t...
background: poly chlorinated biphenyls (pcbs) are a class of chlorinated organic chemicals that do not easily degrade in the environment. this study was conducted to determine the effect of microwave rays, hydrogen peroxide, dioxide titanium and ethanol solvent on the degradation of pcbs. methods: a 900w domestic mw oven with a fixed frequency of 2450 mhz was used to provide mw irradiation. ray...
Degradation of crystal violet using copper modified iron oxide as heterogeneous photo-fenton reagent
The heterogeneous photo-Fenton degradation of crystal violet under visible light has been investigated usingcopper modified iron oxide. The photocatalyst has been prepared by coprecipitation method. The rate ofphotocatalyic degradation of dye was monitored spectrophotometrically. It has been observed thatphotocatalytic degradation follows pseudo first order kinetics. The effect of various param...
This investigation evaluates the effectiveness of UV-365 nm/S2O8 2process in degrading polyvinyl alcohol in aqueous solutions. The effects of pH, Na2S2O8 dosage, and temperature on the degradation efficiency of polyvinyl alcohol were studied. Under acidic conditions, the degradation efficiency of polyvinyl alcohol exceeded that under alkaline conditions. Additionally, a higher Na2S2O8 dosage an...
Background: The reaction of natural organic matters (NOMs) with chlorine in the conventional disinfection process results in disinfection by-products (DBP) such as trihalomethanes and haloacetic acids. Due to the potential health risks of trihalomethanes for public health, it has attracted a lot of attention. The purpose of this study is to investigate the performance of combined Fenton-ultraso...
There is growing interest in the role and contribution of e-government to the level of corruption and the eco-efficiency in terms of economic prosperity and environmental degradation of nation states. In this paper, we use publicly available archival data to explore the relationships among e-government maturity, corruption, and eco-efficiency (defined in terms of economic prosperity and environ...
in this research, zeolite a was synthesized from waste porcelain and cds nano-particles were doped in zeolite framework by a precipitation after an ion exchanging process. all raw and modified samples were characterized by ft-ir, xrd and sem methods. primary experiments showed that the good efficiency of loaded nano cds onto the zeolite a for photodecomposition of dimethyldisulfide (dmds) under...
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