College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China.
Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
Bioresour Technol. 2016 Apr;205:254-7. doi: 10.1016/j.biortech.2016.01.026. Epub 2016 Jan 19.
Antibiotics wastewater from tetracycline (TC) production unit can have high levels of chemical oxygen demand, ammonium and sulfate and up to a few hundreds of milligrams per liter of TC. Denitrifying sulfide removal (DSR) process is set up for simultaneously removal of sulfur, carbon and nitrogen from waters. The DSR process was for the first time studied for treating TC wastewaters. The TC stress has no adverse effects on removal rates of nitrate and acetate; however, it moderately deteriorated sulfide removal rates and S(0) accumulation rates when the concentration is higher than 100mgL(-1) TC. The Thauera sp., and Pseudomonas sp. present the heterotrophs and Sulfurovum sp. presented the autotroph for the present DSR reactions. The high tolerance of TC stress by the tested consortium was explained by the excess production of extracellular polymeric substances at high TC concentration, which can bind with TC for minimizing its inhibition effects.
四环素（TC）生产单元产生的抗生素废水可能具有高化学需氧量、铵和硫酸盐，并且每升水中含有多达数百毫克的 TC。反硝化脱硫（DSR）工艺用于同时从水中去除硫、碳和氮。首次研究了 DSR 工艺来处理 TC 废水。TC 胁迫对硝酸盐和乙酸盐的去除率没有不利影响；然而，当浓度高于 100mgL(-1) TC 时，它会适度降低硫化物去除率和 S(0)积累率。Thauera sp. 和 Pseudomonas sp. 是异养菌，Sulfurovum sp. 是自养菌，用于目前的 DSR 反应。测试的联合体对 TC 胁迫具有高耐受性，可以通过在高 TC 浓度下过度产生细胞外聚合物物质来解释，这些物质可以与 TC 结合，以最大程度地减少其抑制作用。
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