Wastewater containing titanium pigment was treated by microfiltration membrane, Nanometer titanium can be purified and concentrated by use of microfiltration. Operational conditions were optimized and the model was built. Finally, the amount of wash water was reduced. Based on the above research, the whole set equipment was designed, which can meet the needs in a titanium industry with a capability of 500 ton per year. Backflush and automatic control were used in the equipment, which has been steadily run two years, has been widely adopted in titanium industry. The technology has been widely adopted in titanium industry.In the recent years, whole set equipment of ceramic membrane was increasingly used in the recovery of desired production from fermentation broth in China. A new membrane process integrated with pretreatment of flocculation or coagulation was exploited to recover Inosine. ZrO2 ceramic membrane was used in the work, and the average permeation flux could reach 150L/m2.h under pH value of 3, transmembrane pressure 0.1MPa, CFV 3m/s, and temperature higher than 70C. The recovery ratio of inosine is higher than traditional recovery method, although inosine degraded under acidic and high temperature condition.

實驗表明，ZrO_2膜處理肌苷發(fā)酵液的合適條件為pH=3久久A级片、操作壓力為0.1MPa国产激情MV无码一级毛片、膜面流速3m／sWWW.日本黄色、溫度大于70度，此時可以獲得平均滲透通量150L／m~2h午夜视频黑屌，但由于酸性條件中文字幕视频精品一区二区三区、高溫下肌苷降解，導致肌苷收率有所降低幼呦精品，但仍高于傳統(tǒng)肌苷提取方法得到的收率中文字幕黄色电影免费看；為進一步提高肌苷得率，縮短提取工序一级伦奷视频A片试看30秒，實驗研究了絮凝劑預處理發(fā)酵液欧美成aⅴ人高清喷水，解決堿性條件下由于蛋白析出導致膜污染加重的問題，研究表明采用CaCl_2絮凝并調(diào)節(jié)pH=11高清无码黄色视频在线关看，可以獲得平均滲透通量為180L／m~2h亚洲激情一区二区三区四区，肌苷得率大于95％；比較了三種肌苷提取工藝得到的產(chǎn)品質(zhì)量欧美一级特黄大片做受在线观看s，采用預處理與陶瓷南京工業(yè)大學博士學位論文膜分離結(jié)合的除雜工藝得到的粗昔質(zhì)量與陶瓷膜分離日韩美女久久久无吗、離子交換及活性炭吸附工藝生產(chǎn)的粗普質(zhì)量相當，均優(yōu)于傳統(tǒng)的提取工藝婷婷操操b；設(shè)計了每小時處理12一巧噸肌普發(fā)酵液的陶瓷膜成套裝置，采用部分內(nèi)循環(huán)的方式降低設(shè)備的能耗男把女日出了白浆的免费视频，簡化了肌昔提取方式激情另类小说，提高了產(chǎn)品的收率和得率，由于減少離子交換和活性炭吸附影音先锋av在线资源，使得工廠廢水排放量降低30一40%最新热播无码视频。，降低酸、堿用量九七人人操，有利于環(huán)境保護国产初高中精品网。

The validities of amplitude features and their extraction method suitable in high-frequency SAR image are analyzed when they are used in UWB SAR image. An extraction approach of amplitude feature based on target contour is presented, and the corresponding effective amplitude features are proposed. The old dihedral angle model is analyzed and improved. The approach of azimuthal feature extraction is proposed based on the conclusion of the improved dihedral angle model. The problems, which appear when the common change detection methods are used to extract the change feature based on ROI, are analyzed. And a robust and feasible extraction approach is presented.

分析了適于高頻SAR圖像的幅度特征及其提取方法用于UWB SAR圖像時的有效性，提出了基于目標輪廓的幅度特征提取方法及相應的適用幅度特征国产精品免费高清在线观看；分析了已有二面角模型在建模過程中存在的問題并進行了改進建模鲁在线视频，基于改進二面角模型結(jié)論提出了方位向特征提取方法；分析了常用變化檢測方法用于提取ROI變化特征時存在的問題日韩伊人网，提出了一種穩(wěn)健可行的變化特征提取方法色色色8。

For the determination of the chlorophyll in seawater, pigments of marine algae are extracted with 90 % acetone by the following three methods: 1 grinding in a homogenizer, 2 extracting by placing the samples in darkness for a period of time,and 3 using a sonic disintegrator.

本文討論了用90％丙酮從海藻中提取葉綠素進行測定的三種提取方法(研磨法、浸泡提取法人人操一区、超聲波粉碎法)的最佳條件亚洲操大逼综合网。并對三種提取方法的提取效率進行了比較。

The results showed as follows: 1 Extraction of gelsemium total alkaloids. Total alkaloids were extracted with 95 per cent ethanol. The extract rate was 0.519 per cent and the extract purity were 88.02 per cent and 87.38 per cent; Total alkaloids were extracted with chloroform .The extract rate was 0.416 per cent and the extract purity were 89.02 per cent and 94.52 per cent. 2 Isolation of gelsemium total alkaloids with TLC. Total alkaloids contained five or more alkaloids. The optimal developing agent was chloroform :methanol :ethyl acetate(9:l:0.3),the optimal eluent was methylene chloride:methanol(92:8). 3 Isolation of total alkaloids with column chromatography. Alkaloid A and alkaloid B were obtained, alkaloid B was identified as koumine.

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The results are as follows:Defatted wheat germ was micronized useing both hammer mill and colloid mill to increase the extraction rate of protein, followed by alkali extraction and ultrafiltration, respectively. A quadratic mathematical model was statistically constructed by using of Box-Behnken central composite design and response surface methodology. Under the optimized processing parameters of 23μm particle sizes, pH 9.5 and 51℃, a maximum extraction rate, 68.6%, was achieved, which is 30.63% higher than that of non- micronized wheat germ (passing through 80 mesh sieve).

首先采用錘式粉碎與膠體粉碎相結(jié)合的方法對脫脂麥胚進行微細化處理，然后利用堿提性爱五月、超濾濃縮法提取制備麥胚蛋白欧美乱伦视频二区，并通過Box-Behnken中心組合設(shè)計及響應面分析建立預測麥胚蛋白提取率的二次多項數(shù)學模型，優(yōu)化蛋白質(zhì)的提取工藝99热爱精品九九九九，在麥胚粒度為23μm在线产国产、pH值9.5、提取溫度51℃的條件下av大陆老熟女性爱，經(jīng)微細化處理的蛋白提取率為68.6％玖玖视频在线精品，比未經(jīng)微細化處理的(過80目篩)提高30.63％。2国产日韩精品自拍AV。

To optimize inulin extraction,various combinations of time, temperature,and solvent:solid ratio were used.

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The method of pH controlled homogenate extraction of carnosic acid in Rosmarinus officinalis was studied, and the optimum technology parameters were found as following: Homogenate once for 4 min with 80% ethanol (adjusted pH=3.0 with HCl) at a ratio of solid to liquid 1:12.

采用pH控制勻漿法從迷迭香枝葉中提取鼠尾草酸，研究了提取過程中不同影響因子對提取效果的影響欧美国产综合一区。確定的勻漿提取優(yōu)化條件為：以鹽酸調(diào)節(jié)pH=3.0的80%乙醇為提取溶劑AAAAA西欧黄片，料液比1：12，勻漿4min国产网站在线看福利午夜r，勻漿提取1次男女自拍视频网站。

Different methods were used to extract capsaicinoids from the dry chilli pepper.

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Extract of total flavonoids was purified with macroeticular resins. Different kinds of resins were applied to inspect the static and dynamic adsorption ability,to optimize the concentration,volume and flow rate of eluant.

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Effects of different extraction modes, extraction time, pressure and temperature on the extraction yield of onion essential oil and sulphur concentration were investigated,and the different extraction solvents and extraction times were researched in liquid-liquid extraction procedure. The optimal conditions of extraction of onion essential oil with subcritical water were static extraction, 100~150℃sequential program temperature increasing extraction for 30min, 5MPa, petroleum ether as extraction solvent for two times.

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