MBR+蠕虫床耦合系统内胞外聚合物三维荧光特性

采用三维荧光技术研究了MBR+蠕虫床耦合系统内蠕虫作用对MBR内胞外聚合物(EPSS及EPSB)特性的影响.MBR-A、MBR-B和SSBWR内EPSS的EEM光谱中均主要有四个特征峰,SS-BWR的作用未破坏MBR-B内EPSS中酪氨酸类蛋白质的结构,使色氨酸类蛋白质的峰发生了较大程度的红移,两类芳香性蛋白质、类腐殖酸以及类富里酸物质含量均有大量增加.耦合系统内EPSB的EEM光谱均主要有两个特征峰,分别为酪氨酸和色氨酸类蛋白质,EPSB主要由蛋白质类物质构成.经SSBWR作用后EPSB中两类蛋白质含量减少明显,并且色氨酸类蛋白质的特征峰产生了5～10nm的蓝移.MBR-B的污泥混合液经SSBWR作用后,其I(B)/I(A)值有了一定程度的降低,蠕虫的捕食作用使污泥混合液中易生物降解的有机质减少,降低了污泥混合液的可生化性.     

二氧化氯和有机膦药剂的配伍性能研究

研究二氧化氯和PBTCA(2-膦酸基丁烷-1,2,4-三羧酸)、HEDP(羟基亚乙基二膦酸)、ATMP(氨基三亚甲基磷酸)复配使用时对碳钢的缓蚀性能,并利用正交试验确定了最佳配方.     

Pilot Scale Test to Treat High Concentration Gasification Wastewater Using Catalytic Oxidation and Aerobic Biological Fluid-Bed Combination Process

The gasification wastewater is a kind of typical organic industrial wastewater with high chemical oxygen demand （COD） and ammonia nitrogen, which could not be completely degraded by the traditional physical, chemical and biological method. So it is very important to find an effective treatment process. A combination process of catalytic oxidation with noble metal catalysts and aerobic biological fluid-bed packed with the new ultrastructure biological carriers, which was developed by ourselves, was investigated to treat the gasification wastewater. The pilot scale test with 0.5 m^3/h influent flow was carried out to investigate the performance of this new combination process. The results showed that the effluent COD was 84.02 mg/L, ammonia nitrogen was 14.15 mg/L, and total phenol was 0.20 mg/L, which could completely meet the Grade I of Wastewater Discharge Standard （GB8978-1996）, when the influent average COD was 5 564 mg/L, ammonia nitrogen was 237 mg/L, and total phenol was 1 100 mg/L. The two catalytic reactors could evidently improve the wastewater biodegradability, and the value of BOD5/COD （B/C） increased from 0.23 to 0.413 in the one-stage catalytic reactor and from 0. 273 to 0.421 in two-stage catalytic reactor. The further experiment results showed that the effluent quality of this new combination process could still meet the discharge standard, when the COD loading was 8.65 kg / （m^3· d）. Most of aromatic and heterocyclic compounds were degraded effectively in this combination process.     

聚合氯化铝铁在饮用水处理中的生产性实验研究

选择聚合氯化铝铁和硫酸铝在哈尔滨市自来水公司进行了生产规模的对比实验研究.结果表明,聚合氯化铝在控制出水浊度、pH值以及剩余铝方面明显优于传统的硫酸铝.     

A^2／O与SCBP复合工艺除磷中试研究

研究了A^2／O与悬浮填料生物膜（SCBP）中试复合工艺的除磷效率，并考察了影响因子COD／TP与DO对除磷的影响。结果表明：总磷平均去除率为82％，达到GB／T18921-2002景观用水水质要求。当硝酸盐含量急剧下降至0．20mg／L以下时，反硝化除磷菌不再以硝酸盐作为电子受体进行聚磷活动，厌氧磷释放的最佳碳磷比为60。添加纳米改性的悬浮填料后，好氧池的溶解氧为2．0mg／L时，出水TP为0．3-0．35mg／L。     

浸没式MBR处理洗浴废水

以规模3 m^3/d浸没式MBR中试设备进行了洗浴废水处理效果的实验研究.原水COD为53.5～341.0 mg/L, NH4-N为7.2～39.1 mg/L,LAS为1.2～5.8 mg/L,浊度为13～152 ntu;经膜生物反应器的处理后出水COD为8.2～23.5 mg/L,去除率为90.9%, NH4-N为0.2～13.5 mg/L,去除率为71.0%,LAS为0～0.2 mg/L,去除率在90%以上, 浊度为1～7 ntu,去除率92%.说明膜生物反应器处理洗浴废水能够取得良好的效果,尤其是进水有机物质量浓度变化较大的情况下,仍然保持好的去除效果.     

桶装水空桶和桶盖的杀菌消毒和清洗技术研究

在国内首次研究了二氧化氯对桶装水空桶和桶盖中微生物的杀灭效果.研究结果表明,高纯二氧化氯是最有效的杀菌剂,二氧化氯投加质量浓度为0.5 mg/L即可获得满意的杀菌效果;高纯二氧化氯对桶装水水桶和桶盖中的细菌均具有很好的杀菌效果,且20 mg/L的ClO2溶液冲洗1~3 min左右空桶和桶盖获得很高的杀菌率,所以二氧化氯是一种有效的适用于桶装水水桶和桶盖的清洗剂和杀菌剂.     

造纸用低温低浊水脱色技术生产性试验研究

研究主要针对北方地区某造纸厂冬季低温低浊时期色度去除问题，该厂制造卷烟纸的用水要求色度低于15度，而原有的水处理工艺无法满足生产要求．根据小试验确定的工艺参数设计了改造方案，并进行了为期4个月的生产性对比试验研究．结果表明，使用聚丙烯酰胺助凝剂与次氯酸钙预氧化组合强化混凝工艺在色度去除方面取得良好的效果，可以满足生产的要求。     

Removal of Microcystin-LR in Water by Chlorine Dioxide

Microcystins(MCs)are well known as hepatotoxins produced by blooms of toxic cyanobacteria(blue-green algae) abundant in surface water used as drinking water resource and have drawn attention of environmentalists world over by leading to adverse health effects.A study on efficiency and reaction kinetics of microcystin-LR(MC-LR)degradation by ClO2 was performed. Experimental results indicated that MC-LR was removed by ClO2 effectively and the residual concentration of MC-LR could meet the national guideline(GB5749-2006)(1.0 μg·L-1 ),the efficiency of removal was in positive correlation to ClO2 dosage and reaction time and in negative correlation to initial concentration of MC-LR and pH value, whereas it was affected by temperature slightly.ClO2 dosage was the most important reaction factor on base of the orthogonal test results.The reaction was second order overall and first order with respect to both ClO2 and MC-LR,and had an activation energy of 78.81 kJ · mol-1.The reaction rate constant was 4.74×102 L/(mol·min) at 10 ℃.Therefore, oxidation of ClO2 could be taken as an effective technology for removing MC-LR from drinking water resources in traditional drinking water supplies.     

聚硅铁与复合铝铁及硫酸铝的净水效果研究

通过改变Si：Fe(摩尔比)制备了PSI(聚合硅酸铁)，用于受污染的松花江原水净水效果研究，并与聚合氯化铝铁、硫酸铝两种常用混凝剂做了对比试验研究．试验结果表明因聚硅酸铁中不含铝，使得处理后水中的剩余铝含量低于国家生活饮用水水质标准，因此聚合硅酸铁是一种高效安全并具有广泛应用前途的新型净水剂．