絮球

The sludge in SBMBR1 presented granular characteristics and settled very well. The sludge in SBMBR1was brown and the sludge flocs was smashed by the shear force due to high intensity of aeration. The sludge size decreased and the sludge flocs blended with water forming ropy solutions, and there was no distinguish interface between water and sludge. Low sludge age and high loading operation enabled the sludge in SBMBR1 keeping higher sludge activity and the MLVSS/MLSS ratio and SOUR values of SBMBR1 were higher than SBMBR2. Both in SBMBR1 and SBMBR2, there were large amount of zoogloea, bacillus, coryneform of bacteria, and pediococcus. However, in SBMBR1 there were also a lot of Protozoa like epistylis and etc. A certain amount of filamentous bacteria can also be found in SBMBR1. The biological species in SBMBR1 were much more abundant than that in SBMBR2.3. Membrane fouling on flat-sheets membrane was observed and analyzed with AFM, SEM and TEM. After the measurement of membrane surface EPS and membrane surface ETX analysis, the pollutants composition on the surface of flat-sheets membrane was calculated.

从外观观察SBMBR1反应器中的活性污泥呈浅黄色，随着运行时间的增加，污泥粒径逐步增加，SV、SVI值逐步下降，呈现出较强的颗粒特征，沉降性能良好；SBMBR2污泥呈土黄色，污泥絮体被高强度的曝气所产生的切应力所打碎，污泥粒径迅速降低，絮体较为细碎，和水相混合成均一粘稠的溶液，看不到泥水分界面；低泥龄、高负荷运行，使得SBMBR1可以保持较高的微生物活性，MLVSS/MLSS值、SOUR值均高于SBMBR2；两级反应器活性污泥中均有大量的菌胶团，长杆菌、短杆菌和球菌是构成主体，但SBMBR1活性污泥中含有大量固着型原生动物如累枝虫等，还存在着一定数量的丝状菌，生物相要比SBMBR2丰富。3、借助原子力显微镜、扫描电镜、透射电镜等手段对平板膜污染现象进行观测和分析，并通过膜表面污染物EPS测定、污染膜表面能谱分析，得出平板膜表面污染物的组成。

The result shows that dregginess can be checked by blowdown photoelectricity sensor after high density organic waste water enter pool,and dregginess is excluded out of pool by dredg...

结果表明，高浓度有机废水流进沉淀池中，排污光电传感器+排污泵可把检测到的沉淀物排出沉淀池，而池中上清液被浑水光电传感器，清水泵和上浮球把检测到的上清液水排入过滤装置内进行过滤，随后加入絮凝剂进行沉淀分离，再经消毒以达到二次水利用的目的成为现实。

To study the optium compent proportion of media and the best ferm entation conditions for the flocculatnt producing strain Rhodococcus erythropolis.

摘 要：研究了产絮凝剂菌株红平红球菌的最佳培养基组成和最佳发酵条件。

Through single factor experiment to seek the best carbon sources、nitrosen sources ,and orthogohal test to select the best conditions for producing floculants by strain Rhodococcus erythropolis.

通过单因素实验研究红平红球菌产絮凝剂的最佳碳源、氮源，并通过正交设计实验确定菌株红平红球菌产絮凝剂的最佳条件。

RESULTS:① Suspension of bare PS microspheres flocculated in the presence of lysozyme at 37℃ due to protein adsorption, which caused significant decrease in the turbidity of the suspension. Bare PS surface could adsorb 25.5 mg lysozyme per square meter.

结果：①37 ℃下未经预吸附改性的聚苯乙烯微球与溶菌酶接触后，因蛋白在聚苯乙烯表面吸附导致悬浮液发生絮凝、浊度显著下降的现象，原始聚苯乙烯表面蛋白吸附量达25.5 mg/m2。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。