Hybrid municipal wastewater treatment system for recovering the reclaimed water and phosphorous resource

提出了一种在单一反应室中同时进行硝化和反硝化的新型膜生物反应器（MBR）用于城市污水深度处理。通过在膜室内部插入挡板，在所提出的MBR中分别产生缺氧/好氧条件，从而可以进行同步硝化/反硝化。在这项研究中建立的技术可以很容易地应用于几乎所有现有的MBR。在现有的城市污水处理厂进行了中试规模的实验，以检查拟议的MBR的性能。在膜室中插入挡板，可使脱氮效果提高30%。采用分子微生物学方法如T-RFLP和Real-Time PCR检测两种细菌。我们可以在人、牛和猪之间区分它们的起源。我们有成功 ...更多信息 在丰平川流域得到了成功的应用。水溶液中的正磷酸根离子可以有效地捕获在硫酸锆-表面活性剂胶束介观结构（ZS）中。反应通过ZS中HSO_4-与OH-的阴离子交换与HPO_3-进行。ZS对HPO 3-的最大吸附容量为330 μmol/gZS。该值比现有最佳吸附剂高1.6倍。采用聚合酶链反应-变性梯度凝胶电泳（PCR-DGGE）和荧光原位杂交（FISH）技术，对中试常规膜生物反应器（CMBR）、复合膜生物反应器（HMBR）和生产性活性污泥（AS）工艺处理同一城市污水的微生物群落结构进行了分析。这两种技术都表明，与CMBR和全规模AS工艺相比，HMBR支持显着不同的微生物群落结构。FISH分析还显示，CMBR中的绿弯杆菌（Chloroflexi）细菌（以前称为绿色非硫细菌）的数量是HMBR的四倍，是AS工艺的两倍。少

A novel membrane Bioreactor(MBR) in which nitrification and denitrification simultaneously proceed in a single reaction chamber has been proposed for advanced municipal wastewater treatment. Anoxia/aerobic conditions are separately created in the proposed MBR by inserting baffles inside of the membrane chamber and consequently simultaneous nitrification/denitriication can be carried out. The technology established in this study can easily be applied to almost all of existing MBR's. Pilot-scale experiment to examine performance of the proposed MBR was carried out at an existing municipal wastewater treatment plant. Inserting baffles inside the membrane chamber actually increased removal of nitrogen by 30%.In order to evaluate the reclaimed water quality, new method for detecting the indicator microorganisms. Molecular microbiological procedures such as T-RFLP and Real-Time PCR areused to detect the both bacteria. We can distinguish their original among human, cow and pig. We have succes … More sfully applied the new method in Toyohira River basin. Ortho-phosphate ion in aqueous solution could be effectively trapped in the zirconium sulfate-surfactant micelle mesostructure (ZS). The reaction proceeded through anion exchange between HSO_4-and OH-in ZS and HPO_3-. Maximum sorption capacity of ZS for HPO3-was330 μmol/gZS. This value is 1.6 times higher than the existing best sorbent. The microbial community structure of a pilot-scale conventional membrane bioreactor (CMBR), hybrid MBR (HMBR) and a full-scale activated sludge (AS) process, treating the same municipal wastewater, were analyzed by polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) and fluorescence in situ hybridization (FISH) techniques. Both techniques demonstrated that the HMBR supported a significantly different microbial community structure comparing with the CMBR and with that of a full-scale AS process. FISH analysis revealed also that the population of Chloroflexi bacteria (formerly known as green nonsulfur bacteria), in the CMBR was four times greater than the HMBR and two times greater than the AS process. Less