pH值对味精活性炭脱色效果的影响

试验了在活性炭脱色中,pH值对中和液、中和混合液、碳柱混合液和味精水的影响.结果表明,在加入相同的活性炭质量时,pH=5.5～6.0比pH=6.8～7.5时,透光率高3%～9%,中和混合液比碳柱混合液脱色透光率好约3%;pH值的高低也对溶液的透光率有1%～3%的影响.     

煤质活性炭用于味精脱色的可行性研究

分析了活性炭的发展及用途,对煤质粉状活性炭用酸,碱进行一系列处理以降低其灰分及铁元素等的含量,并测试其各项性能指标,验证煤质粉状活性炭可以通过处理,达到味精用活性炭的标准要求,从而开发煤质粉状活性炭的用途.     

活性炭与炉渣对染料脱色作用的对比研究

利用炉渣和活性炭对酸性品红等染料进行了脱色试验并进行了比较。结果表明,活性炭和炉渣的脱色作用具有可比性,它们的最大脱色能力分别可达96％,86％。且它们的静态等温吸附基本符合Langmuir等温方程。     

铁碳微电解对造纸黑液的脱色处理

本文针对用白腐菌-厌氧-好氧生物法处理造纸黑液的出水色度过高,而COD也不能达标的现象,利用铁碳微电解反应柱对出水进行脱色与去除COD的研究.分析了其反应的基本原理,获得了较佳的工艺处理条件：铁炭质量比为2：1,初始pH值4.5～5.5之间,反应时间为30～40min,常温下反应等因素,最终色度与COD的去除率分别达到94.2%与68.9%,出水达到了行业排放标准.     

活性炭对焦糖脱色率的试验方法和计算

简述了美国、日本关于活性炭对焦糖色素脱除力的试验方法与脱色率（脱色力）的计算,详细剖析了国内以往对焦糖色素脱除力的试验方法与脱色率（脱色力）的计算、以及新近修订的本质活性炭试验方法中对焦糖色素脱除力的表述方法。     

活性炭催化氧化对染色废水脱色处理的试验研究

本文叙述了用活性炭—过氧化氢催化氧化法对纺织印染废水脱色处理的试验结果。与活性炭吸附法和化学氧化法相比,该法处理效果较好。     

活性炭催化光氧化对活性艳红X-3B脱色的试验

本文采用以活性炭作催化剂的曝气 /紫外光体系 ,对染料活性艳红 X- 3 B的光氧化脱色进行了试验。结果表明 ,酸性条件下 ,活性炭对脱色反应具有显著催化作用。初步分析认为主要机理是活性炭吸附氧分子反应生成了 H2 O2 ,进而在紫外光作用下产生了强氧化性的· OH自由基。脱色反应为动力学零级反应。     

某味精厂3800m^3／d污水处理项目

本文介绍了某味精厂3800t/d的废水处理装置工艺流程,阐明了工艺原理。     

Monosodium Glutamate Influence on Cellulose Acetate Hemodialysis Membranes

The influence of monosodium glutamate (MSG) additive and its concentration on the performance of hemodialysis membrane were investigated. Concentration of MSG was varied from 1 wt% to 8 wt% and the performance of the hemodialysis membrane was evaluated in terms of urea clearance and bovine serum albumin (BSA) rejection. Results revealed that membrane with 6 wt% of MSG, which was fabricated from 64 wt% formic acid and 10 wt% distilled water, achieved the best urea clearance of 53.20% and BSA rejection of 94%. SEM images illustrated that the increment of MSG concentration in the casting solution tends to promote macrovoids formation. However, when the amount of MSG was further increased beyond 6 wt%, the urea clearance was reduced and the macrovoids structure disappeared. FTIR spectra indicated that both N[sbnd]H and C[sbnd]N bonds from MSG were absent indicating that the MSG was removed during phase inversion.     

Biochemical Alterations during the Obese-Aging Process in Female and Male Monosodium Glutamate (MSG)-Treated Mice

Obesity, from children to the elderly, has increased in the world at an alarming rate over the past three decades, implying long-term detrimental consequences for individual’s health. Obesity and aging are known to be risk factors for metabolic disorder development, insulin resistance and inflammation, but their relationship is not fully understood. Prevention and appropriate therapies for metabolic disorders and physical disabilities in older adults have become a major public health challenge. Hence, the aim of this study was to evaluate inflammation markers, biochemical parameters and glucose homeostasis during the obese-aging process, to understand the relationship between obesity and health span during the lifetime. In order to do this, the monosodium glutamate (MSG) obesity mice model was used, and data were evaluated at 4, 8, 12, 16 and 20 months in both female and male mice. Our results showed that obesity was a major factor contributing to premature alterations in MSG-treated mice metabolism; however, at older ages, obesity effects were attenuated and MSG-mice became more similar to normal mice. At a younger age (four months old), the Lee index, triglycerides, total cholesterol, TNF-α and transaminases levels increased; while adiponectin decreased and glucose tolerance and insulin sensitivity levels were remarkably altered. However, from 16 months old-on, the Lee index and TNF-α levels diminished significantly, while adiponectin increased, and glucose and insulin homeostasis was recovered. In summary, MSG-treated obese mice showed metabolic changes and differential susceptibility by gender throughout life and during the aging process. Understanding metabolic differences between genders during the lifespan will allow the discovery of specific preventive treatment strategies for chronic diseases and functional decline.     

活性炭表面性质对污染物脱除影响

重点阐述了水处理中活性炭的表面物理和化学性质及其改性后的性能对污染物脱除的影响。表面物理性质方面包括对孔径大小、孔分布以及活性炭改性的研究;表面化学性质方面包括对表面氧化改性、表面还原改性以及负载金属改性的研究。并对活性炭的未来发展方向提出了一些建议。     

原煤的物理与化学方法降灰

贵州煤的灰分限制了它在煤质活性炭生产上的广泛利用,寻找一种廉价的除灰技术就成其发展的重要环节。本文研究了以物理和化学的除灰方法对贵州高灰分的煤进行除灰,可使灰分含量从12.05%下降至4.25%,可以满足生产中、高档活性炭的工艺要求。     

印染废水物理化学脱色方法的研究进展

本文在总结近年来的研究文献基础上,按混凝、氧化还原法及膜分离等几个方面,分别论述了印染废水的物理化学脱色技术的现状与研究进展情况。     

育苗基质物理及化学性质的综述

从基质的粒径大小、容重、密度、孔隙度、保水性等方面总结阐述了基质物理性质方面的研究指标及研究进展;从有效成分,酸碱度、电导率、离子吸附与交换能力、盐基交换量、缓冲能力等方面阐述了基质的化学性质方面的研究指标及研究进展。且指出,利用农业废料开发新型基质,填补国内空缺,是未来我国基质开发研究的一个很重要的方向。     

苯甲酸-3-磺酸钠的合成研究

以苯甲酸为原料 ,采用 2 0 %发烟硫酸为磺化剂 ,运用正交实验设计探讨了苯甲酸 - 3-磺酸钠的合成工艺条件。确定最佳反应条件为 :磺化温度 1 45°C,反应时间 3h,原料配比 (苯甲酸 :三氧化硫 ,摩尔比 ) 1∶ 0 .8,产品收率达 95 .9% ,纯度 97.4%。对产品的结构用红外光谱和核磁共振波谱进行了表征     

利用酵母菌处理味精废水中COD影响因素研究

利用酵母菌处理味精高浓度有机废水，即能回收菌体蛋白，又能去除废水中部分CODcr，是一种废水处理经济有效的方法。本试验主要研究各种因素对去除味精废水中CODcr的影响作用。结果表明，试验最佳控制参数值为：pH值为4．5左右；温度32～34℃；时问控制在28h左右；接种量控制在18％～20％。在此条件下，CODcr、BOD5去除率可分别达将近70％、80％左右。