Amaral Míriam C S, Gomes Rosimeire F, Brasil Yara L, Oliveira Sílvia M A, Moravia Wagner G
a Department of Sanitary and Environmental Engineering , Federal University of Minas Gerais , Belo Horizonte , Brazil.
b Departments of Environmental Science and Technology , Federal Center of Technological Education of Minas Gerais , Belo Horizonte , Brazil.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2017 Dec 6;52(14):1352-1360. doi: 10.1080/10934529.2017.1357407. Epub 2017 Sep 14.
The startup process of a membrane bioreactor inoculated with yeast biomass (Saccharomyces cerevisiae) and used in the treatment of landfill leachate was evaluated. The yeast membrane bioreactor (MBRy) was inoculated with an exogenous inoculum, a granulated active dry commercial bakers' yeast. The MBRy was successfully started up with a progressive increase in the landfill leachate percentage in the MBRy feed and the use of Sabouraud Dextrose Broth. The membrane plays an important role in the startup phase because of its full biomass retention and removal of organic matter. MBRy is a suitable and promising process to treat recalcitrant landfill leachate. After the acclimation period, the COD and NH removal efficiency reached values of 72 ± 3% and 39 ± 2% respectively. MBRy shows a low membrane-fouling potential. The membrane fouling was influenced by soluble microbial products, extracellular polymeric substances, sludge particle size, and colloidal dissolved organic carbon.
对接种酵母生物质（酿酒酵母）用于处理垃圾渗滤液的膜生物反应器的启动过程进行了评估。酵母膜生物反应器（MBRy）接种了外源接种物，即颗粒状活性干商业面包酵母。通过逐步提高MBRy进料中垃圾渗滤液的比例并使用沙氏葡萄糖肉汤，MBRy成功启动。膜在启动阶段起着重要作用，因为它能完全保留生物质并去除有机物。MBRy是处理难降解垃圾渗滤液的一种合适且有前景的工艺。适应期后，化学需氧量（COD）和氨氮（NH）去除效率分别达到72±3%和39±2%。MBRy显示出较低的膜污染潜力。膜污染受可溶性微生物产物、胞外聚合物、污泥粒径和胶体溶解有机碳的影响。
