To reduce the poisonous compounds in the breeding ponds,five species of bacteria including denitrobacteria ,photosynthetic bacteria,thiobacteria and bioflocculation bacteria were screened from the breeding water.

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Bioflocculants, having good flocculating activity, are the metabolic products of the microorganism, which are safe, non-toxic and can be biodegraded easily.

微生物絮凝劑是一類由微生物產(chǎn)生并分泌到細(xì)胞外具有絮凝活性的生物活性物質(zhì)99久久免费精品视香蕉蕉，具有良好的絮凝沉淀性能，安全99热99这里只有精品、無毒免费黄网址，易于生物降解。

At present, the flocculating mechanisms of microbial flocculants have not been studied in detail, which restrict the development and use of microbial flocculants.

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Second, the flocculating process and conditions in highly concentrated protein wastewater treatment are studied.

其次aa片黄色视频，論文研究了用實(shí)驗(yàn)制得的殼聚糖絮凝劑處理高蛋白含量食品廢水的絮凝效果和絮凝條件。

Polyaluminum silicate chloride coagulant was prepared in laboratory from kaolin and Na_(2)CO_(3) under the process of high-temperature roasting,washing and acid dipping.

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Through the analysis and comparison with major products in the market, the determined battings' structure (the mass fraction of thermal bonding fibers is 14%, hollow fibers 40%, and common fibers 10%, and fine-denier fibers 36%) can be considered reaching the aim reducing the mass of battings, while keep the characteristics of warmth retention and compression elasticity.

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The lanolin in the flocculent deposit was been extracted by solvent of toluene. A high removal rate of COD can been also got by SPAM only, and raised with the concentration of SPAM. The removal rate of COD reached 94% when the concentration of SPAM was 300mg/L, but the floccules were difficult to deposit and filtrate.

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When pH is 8.0, the flocculation rate can reach 91%. The experiment indicates that the evaluation system of kaoline is affected by PO(superscript 3- subscript 4) and Ca(superscript 2+) when the concentration of PO(superscript 3- subscript 4) is high in the substrate. As the real flocculation efficiency cannot be achieved, the evaluation system needs to be modified.

實(shí)驗(yàn)表明，培養(yǎng)基中PO(上標(biāo) 3-下標(biāo) 4)濃度較高時xxxx性欧美，現(xiàn)有的微生物絮凝劑高嶺土評價體系會受到PO(上標(biāo) 3-下標(biāo) 4)與Ca(上標(biāo) 2+)的影響97人洗澡人人澡人人爽人人模，不能真實(shí)地表示微生物絮凝劑的絮凝效果，需要對現(xiàn)有評價體系進(jìn)行修改.欧美黄色视频一区二‘区三区。

And ,i found the tube hair seed fly only at very sunny day, not at rainy or cloudy day, maybe there is something relationship with the hollow structure.

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