高效生物滤池在污水处理中的应用

设计了一种新型高效生物滤池———Biosmedi滤池 ,其主要特点是采用人工合成的粗颗粒轻质滤料 (空气脉冲反冲洗方式 ) ,在填料负荷高达 4 .0～ 7.5kgCOD (m3 ·d)的范围内 ,生产运行效果良好。     

火山岩滤料曝气生物滤池污水处理实验研究

采用火山岩滤料为生物载体的前置反硝化曝气生物滤池工艺处理生活污水,并对生物滤池运行稳定后的水质和滤料生物膜进行检测分析,实验结果表明,火山岩滤料是较好的生物载体,该工艺具有良好的污水处理效果。     

复合生物活性滤料滤池的性能研究

采用由惰性和活性滤料 (由极性和非极性滤料复合而成 )复合构成的新型生物活性滤料滤池进行过滤试验。结果表明 ,该滤池对氨氮的去除率 >90 % ,对CODMn的去除率 >4 0 % ,使Ames试验致突变性降低约 1/ 3左右 ,其出水水质满足国家《生活饮用水卫生标准》(GB 5 74 9— 85 ) ,具有较好的处理效果。     

三种曝气生物滤池滤料处理城市污水的对比研究

分别以页岩陶粒、悬浮滤料和轻质滤料作为曝气生物滤池的滤料来处理生活污水,考察了三种滤料对COD、NH3-N和SS等指标的去除效果及运行要求.结果表明,相对于传统的陶粒滤料,悬浮滤料对NH3-N的降解能力较强,但由于对微小絮体的截留能力不足,其对COD的去除率不高,造成出水COD较高;轻质滤料的截留效果较好,对COD和NH3-N的去除能力都优于陶粒滤料,但其反冲洗难度较大;以悬浮滤料为主体,和轻质滤料组成复合滤料层,可以充分发挥二者的优点,克服其不足,对城市污水的处理效果更好.     

生物陶粒在污水处理中作滤料的研究与应用

随着曝气生物滤池(BAF)的发展,其核心问题填料的研究越来越受到重视。陶粒以其优越的性能优于其它材料。本文酋先系统介绍了生物填料的种类及应用的历史,重点介绍了陶粒的研究、发展状况及应用历史和用作滤料的制造工艺和性能要求,并对其原料成分对烧胀的影响作了论述。总结出对生物陶粒的研究和开发中应重点解决的问题。     

“彗星式纤维滤料”高速滤池工艺设计

当今水处理技术中，大流量水体的悬浮颗粒分离工艺是制约水处理工程实际运行的一个难题。评价过滤器是否处于高效状态，滤料的自适应性是关键，即过滤时滤料构成的滤层具有空隙率从上到下逐渐变小的“理想滤层”的特点，反冲洗后滤料充分清洁，并且“理想滤层”的特点不被改变。     

管锥形填充床处理城市污水试验研究

针对城市污水处理中存在处理设施基建与运行费用高的问题,对管锥形填充床处理城市污水进行了研究分析,试验结果表明,管锥形填充床在较短的停留时间内,对有机物有较高的去除能力,而且管锥形填料价格低,使用方便,可节约基建投资和安装费用.     

Fuzzy control of disturbances in a wastewater treatment process

This paper describes a real-time process control scheme to cope with the problem of input disturbances in wastewater treatment processes, based on a fuzzy inferential control system. This can detect the presence of a dangerous input conditions whenever either organic overload or inhibitory/toxic compounds are present in the raw wastewater. Based on this diagnosis, a set of fuzzy rules are implemented to divert the process flow and bring the system back into a safe state. The control system was designed and tested using a pilot plant, to which a toxic disturbance was applied. Its behaviour with and without fuzzy control are compared, and the process reliability improvement in the controlled case is demonstrated.     

Application of multi-wavelength fluorometry for monitoring wastewater treatment process dynamics

Much of the methodology employed for characterizing wastewater and in modeling wastewater treatment processes employs off-line analysis. Off-line analysis is time consuming and not ideally suited to developing process control strategies. Clearly a rapid, inexpensive and reliable method suitable for following organic consumption and biomass production on-line would be very useful. In this study multiple excitation—multiple emission fluorometry was examined as a method for monitoring wastewater treatment processes. Results were first obtained for defined protein solutions and activated sludge to identify characteristic excitation and emission wavelength pairs. These results were then used to develop a rapid off-line assay for measurement of synthetic feeds consisting of protein substrates for batch aerobic and anoxic wastewater treatment processes and for on-line monitoring of cellular metabolic states in an anoxic process. Step-wise multiple regression and principal component analysis were employed for data analysis. The former was used to determine the most informative excitation and emission wavelength pairs while the latter was applied to reduce fluorescent spectra dimensions. Analysis of the batch kinetics suggests that this approach is valid and revealed some dynamic features of protein utilization and biomass accumulation under aerobic and anoxic conditions. A correlation was developed between COD-removal rates and the fluorescence signals in the two processes using fluorescent emission spectra rather than single signals. The data suggests that this multiple excitation—multiple emission fluorometry may be a suitable method for following wastewater and activated sludge dynamics and could be used as the basis for the development of expert system based biosensors.     

水解-好氧工艺在氯丁橡胶废水处理中的应用

结合工程实例，介绍了水解酸化——好氧工艺在处理氯丁橡胶废水中的应用，经实际运行证明，PH等五项主要污染物实现达标排放，COD基本接近排放标准，为橡胶工业废水处理提供了有益的参考和借鉴。     

膜生物反应器在废水处理中的应用及前景展望

介绍了膜生物反应器的发展历程,对膜生物反应器的分类以及工艺特点作了阐述,并讨论了膜生物反应器在生活污水、工业废水中的应用,对其发展前景进行了展望.     

On‐site wastewater treatment using reactive filter media

The aim of this study is to reduce the phosphate concentration in treated wastewater using a small amount of the reactive filter media, Filtralite P. Biologically treated wastewater was passed through a filter with 215 g of Filtralite P. In the laboratory, the phosphate removal efficiency was 51% at a flow speed of 0.87 m/h. Under real conditions, in an experimental stand filled with 0.5 m³ of Filtralite P, the phosphate removal efficiency was 85% and the removal efficiency of total suspended solids was 57% after a 5‐month period. The residual phosphate concentration in the filtrate from the experimental stand was 1 mg/L of PO₄‐P after the 5‐month period. The experimental filtration plant was buried in the ground, and it did not freeze and worked well under winter conditions. The results of this study can be useful in the design and development of tertiary wastewater treatment plants in view of their sustainability potential.     

沼气池在农村污水处理中的应用

简述了农村排水的现状,介绍了污水处理的方法,探讨了沼气在农村污水处理中的应用,指出厌氧净化污水池迎合了我国小城镇建设和发展的需要,在不断对其研究和改进的同时应大力推广应用。     

嗜盐菌在高盐废水处理中的应用研究

嗜盐菌是一类能在高盐环境下进行正常生长代谢的细菌,同时其具有降解有机物的功能,这使得生物法处理高盐废水成为可能,论述了嗜盐菌的分类、特性及作用机理,并综述了国内外高盐废水生物处理的研究进展,最后展望了其应用前景。     

华南地区某污水处理厂工程设计

针对华南地区某污水处理厂污水处理的特点和难点,探讨了该厂污水处理工艺设计,介绍了AAO污水处理工艺流程,并阐述了各主要构筑物工程设计及相关参数,为今后类似污水处理厂项目设计积累了一定经验。     

UASB法在啤酒厂废水处理中的应用

根据国内啤酒废水的水质特点,运用UASB法处理啤酒厂废水,此方法可将原废水COD值（800mg／L-3000mg／L）降低到国家规定的排放标准（≤500mg／L）,将此工艺与水解酸化池联合,可提高处理效率。