PAC—SBR法处理高浓度有机废水

针对高浓度有机废水无稀释好氧处理这一新领域中存在的某些问题，本文提出了ＰＡＣ—ＳＢＲ生化法。通过对ＰＡＣ—ＳＢＲ与ＳＢＲ这两个生化系统的生化效果、污泥负荷、污泥沉降性能、好氧速率、动力学常数测定以及活性炭（ＰＡＣ）吸附性能的试验比较，对这一新的生化系统有一个较全面的认识，为ＰＡＣ—ＳＢＲ技术在高浓度有机废水治理上的应用提供理论依据。     

中国南岭风化壳型稀土资源分布特征

本文从南岭风化壳型稀土资源的元素、储量、时代、构造和地理等5个方面的分布特征研究入手,分析结果得出中国南岭风化壳型稀土资源以花岗岩风化壳型稀土资源为主,表现出元素丰度高、储量大、时代新、构造条件简单和地理分布面积广的特点,其次是火山岩和碱性花岗岩,碱性岩与千枚岩的风化壳也都有稀土矿产出,从而打破了南岭风化壳型稀土矿都是由花岗岩风化后形成的传统概念,扩大了稀土资源的找矿方向与远景储量。     

生物过滤饮用水深度处理:机遇与挑战

源水水质的恶化给传统的饮用水处理工艺带来了挑战.生物过滤是饮用水消毒输配之前管理、维护及增强颗粒滤料表面生物活性以去除有机和无机物的过程.由于具有高效、低成本等优点，生物过滤在饮用水深度处理工艺中逐渐得到广泛的应用.本文综述了生物过滤在饮用水处理过程中对水中溶解性有机质（消毒副产物前体物）的去除、微量污染物的削减、嗅味化合物及氨氮的去除等.此外，针对生物过滤在水深度处理过程中存在的问题，本文详细讨论了含氮消毒副产物前体物的生成、低温下生物过滤效能下降等挑战，并提出了今后需要研究的问题.     

土霉素废水处理的研究现状和发展趋势

回顾了土霉素废水处理的国内外进展；分析了我国现有土霉素废水处理工艺存在的问题，并在此基础上提出了回收废水中草酸和土霉素，再生化处理的工艺路线。在对工艺路线中采用的方法进行分析后，指出研究高效低耗的土霉素回收工艺是其中的关键。     

水产品加工废水生物处理现状与展望

介绍了几种较为典型的水产品加工废水生物处理工艺,以及利用生物处理工艺处理高含盐量废水实验室研究结果;展望了水产品加工废水处理技术的发展前景。     

不同类型污染源颗粒物的粒度分布特征分析

对影响葫芦岛市城区环境质量可吸入颗粒物的各类污染源颗粒物的粒度成份、分布特征进行分析。采用斯托克直径ds（Stoke＇s Diameter）表示法，利用巴柯离心机对样品进行处理，得到各类排放源所排放的不同粒径的颗粒物重量百分比，为环境管理提供科学依据。     

Effect of leachate recycling and inoculation on the biochemical characteristics of municipal refuse in landfill bioreactors

Activity development of key groups of enzymes involved in municipal refuse decomposition was measured in laboratory landfill bioreactors with and without leachate recycling and inoculation for about 210 days.The results showed that the enzymes(amylase,protease,cellulase,lipase and pectinase)were present in fresh refuse but at low values and positively affected by leachate recycling and refuse inoculation.The total average of cellulase activity in digesters D3 operated with leachate recycling but no inoculation,D4 and D5 operated with leachate recyling and inoculation was much higher than that in digesters D1 and D2 without leachate recycling and inoculation by 88%-127%,117%-162%and 64%-98%.The total average of protease activity was higher in digester D4 than that in digesters D1,D2,D3and D5 by 63%,39%,24%and 24%,respectively,and the positive effect of leachate recycling and inoculation on protease activity of landfilled refuse mainly was at the first two months.The total average of amylase activity was higher in digesters D3,D4 and D5 than that in digesters D1 and D2 by 83%-132%,96%-148%and 81%-129%.During the early phase of incubation,the stimulatory effect of inoculation on lipase activity was measured,but refuse moisture was the main factor affecting lipase activity of landfilled refuse.The inoculation,initial and continuous inoculation of microorganisms existing in leachate,was the mainly stimulatory factor affecting pectinase activity of landfilled refuse.     

Biological pretreatment of Yellow River water

Bio-ceramic filter(BF) and moving-bed biofilm reactor(MBBR) were used for biological pretreatment of Yellow River water in this study. The BF only had slight advantage over MBBR for TOC and ammonia removal. However, like UV254, the average removal rate of THMFP in the BF was much higher than that in the MBBR. UV254 removal did not show obvious correlation with trihalomethane formation potential(THMFP) removal. Hexachlorocyclohexane could be effectively removed in both BF and MBBR. As for diatom and cyanobateria removal the MBBR had better performance than the BF, which was contrary to the average chlorophyll-a(Chl-a) removal rate. The proposal was made in this study that biological flocculation and sedimentation of sloughed biofilm should play a more important role on algae removal in the MBBR than in the BF. The BF and MBBR could effectively remove microcystins. Moreover, MBBR could be a promising technology for biological pretreatment.     

UBAF与纤维球过滤结合工艺应用于污水回用的试验研究

利用升流式曝气生物滤池 (UBAF)与纤维球过滤相结合的工艺对城市污水进行深度处理 ,使其达到回用的要求。结果表明 :对于经过二级处理后的可生物降解性较差的城市污水 ,应用UBAF和纤维球过滤相结合的处理工艺能够取得很好的效果 ,处理后的污水完全可以达到污水排放的一级标准和城市生活杂用水的标准     

草浆造纸中段废水的生物处理动力学

利用静态溶解氧消耗速率（OUR）试验模拟草浆造纸中段废水生物处理的生化反应过程,并运用Lawrence-McCarty模式进行了动力学分析。由OUR试验结果和小试研究结果建立的草浆造纸中段废水好氧生物处理的动力学方程为v=0.72S/(60.43 S）。将该动力学方程预测结果和实际工程的运行数据进行了比较,结果表明,动力学方程的比基质降解速率预测值高于实际工程的计算值,分析原因可能在于：实际工程中中段废水中的纤维素类悬溪物在生物处理装置的积累导致了污泥活性的降低。