SBR法曝气量的模糊控制

介绍了SBR法处理啤酒废水的过程中，将在线检测的溶解度氧浓度（DO）与人工神经网络系统相结合实现对曝气量的模糊控制的试验研究。结果表明，在同一曝气量下，反应初始阶段（8－10min）溶解氧浓度的大小不仅能够间接的反映进水有机物浓度（COD）的大小，而且可以预测整个反应过程溶解氧浓度高低，而溶解氧的高低还可以由曝气量大小控制。因此，人工神经网络系统可根据初始阶段DO的大小及变化情况预测进水有机物浓度和相应的曝气量，与此同时，以初始阶段的DO作为曝气量的模糊控制参数，实现对曝气量的模糊控制。     

棉浆粕废水处理系统中好氧动力学参数测定

以采用两相厌氧 -好氧SBR -絮凝沉淀组合工艺处理棉浆粕废水的工业化装置为对象 ,在水温自然变化情况下 ,测定了好氧SBR单元的生化动力学参数 ,其结果分别为 :Vmax=0 70～ 0 91mgBOD5/mgVSS·d ,Ks=15 5～ 2 0 4mgBOD5/L ,Y =0 6 6～ 0 6 9mgVSS/mgBOD5,Kd=0 0 31～ 0 0 4 1d-1,Vmax′ =0 5 2～ 0 74mgCODcr/mgVSS·d ,Ks′ =9 3～ 14 2mgCODcr/L ,Y′ =0 38～ 0 4 5mgVSS/mgCODcr ,Kd′ =0 0 2 1～0 0 2 9d-1,并与已有文献报导的纸浆和造纸废水的测定结果进行了比较 ,表明棉浆粕废水经两相厌氧处理后出水更易于生化处理 ,但仍属较难好氧生化处理废水     

甘蔗糖蜜酒精废液的二相厌氧-好氧处理

硫酸盐还原和产甲烷分别在两相UASB反应器中进行:硫酸盐还原主要在一相UASB中完成,SO42-去除率在85%以上;产甲烷主要在二相UASB中完成,沼气产率为0.11~0.13 L/g COD.当二相UASB中COD负荷提高到30 kg/(m3.d)时,COD去除率达到65%~77%,出水COD浓度也会明显提高.碱度不足会影响SBR的硝化效果,当补充碱度后,出水氨氮多在10 mg/L以下.     

附聚SBR制备ABS改性剂及其增韧PVC的性能研究

研究了不同粒径SBR制备的ABS改性剂对PVC增韧的影响，发现随着SBR粒径的增大合金的光学性能降低，而缺口冲击强度呈先上升后下降趋势，当SBR粒径为225nm时达到最大值。考察了NaCl与NaOH体系对SBR附聚的影响，发现相同浓度NaOH的条件下，随着5wt％NaCl用量提高，SBR附聚后粒径显著增加。比较了扩径前后SBR制得的ABS／PVC性能发现：扩径后的SBR制得的ABS／PVC冲击强度上升显著，同时与扩径前小粒径SBR制备的ABS／PVC相比较，其光学性能没有明显下降。     

剂量和稳定剂对SBR／SBS改性沥青性能的影响

通过多种性能评价方法，考察了SBR剂量以及添加稳定剂对SBR／SBS改性沥青性能的影响。试验结果表明，SBR剂量超过4%导致沥青离析。加入稳定剂使聚合物产生交联，导致SBR／SBS改性沥青的延度降低、粘韧性和抗变形能力提高。     

Reinforcing effect of a kaolin surface-treated with diallyldimethylammonium in SBR vulcanizates

This paper examines the physico-chemical characteristics of a natural kaolin, its textural properties, pores, morphology, chemical surface, as well as chemical surface modification through treatment with quaternary ammonium salts in SBR mixes. Diallyldimethylammonium chloride was used as a quaternary alkali for surface modification of the kaolin, thus allowing the unsaturated allyl portion to covulcanize with the rubber. This achieved strong rubber-filler bonds with consequential enhancement of the technological properties of the vulcanizate.     

黄酒厂的污水处理方法

文中介绍了有关黄酒污水处理的几种方法，基本特点，工艺流程。     

HUSB-厌氢消化-SBR工艺处理小型白酒厂废水

根据白酒废水水质指标及对去除有机物的要求,充分考虑小酒厂的废水特性,结合各工艺特点,提出HUSB-厌氧消化-SBR工艺对小型白酒厂生产废水处理进行研究.经运行表明,该工艺能够高效处理废水,占地面积小,一次性投资少,运行管理方便,是小型白酒企业废水处理宜采用的工艺.     

Dependence of the network structure of cured styrene butadiene rubber on the sulphur content

An investigation about the dependence of the physical properties of styrene-butadiene rubber copolymers (cured with different sulphur content, in order to obtain various networks) on the crosslink density was carried out by means of dynamical mechanical analysis, differential scanning calorimetry and positron annihilation lifetime spectroscopy. SBR specimens were cured with different sulphur content, in order to obtain various networks. On increasing the crosslink density, the glass transition temperature increases and the fractional free volume decreases. The thermal expansion coefficient of the free volume decreases in the rubbery phase by increasing the crosslink density, owing to the slower rate of expansion of nanoholes; furthermore, it seems influenced by the percentage of polysulfide density. The density of nanoholes is independent of the temperature, but decreases on adding sulphur. The results can be framed within the Simha-Somcynsky free volume theory.     

腐殖活性污泥对SBR工艺降解污染物的影响研究

介绍了腐殖活性污泥处理技术在国内外的发展情况,对在SBR工艺及投加腐殖土填料形成腐殖活性污泥的SBR工艺降解污染物效果进行了对比分析,结果表明：投加腐殖土填料对SBR工艺去除COD的效果没有明显影响,但可缩短COD的降解时间;投加腐殖土填料的SBR反应器对N和P去除效果明显优于普通SBR工艺。